CN116202237B - Solar vacuum tube photo-thermal performance monitoring device and monitoring method - Google Patents
Solar vacuum tube photo-thermal performance monitoring device and monitoring method Download PDFInfo
- Publication number
- CN116202237B CN116202237B CN202310473202.7A CN202310473202A CN116202237B CN 116202237 B CN116202237 B CN 116202237B CN 202310473202 A CN202310473202 A CN 202310473202A CN 116202237 B CN116202237 B CN 116202237B
- Authority
- CN
- China
- Prior art keywords
- vacuum tube
- reflecting surface
- solar vacuum
- shaped structure
- light source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
- F24S40/90—Arrangements for testing solar heat collectors
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The application relates to a solar vacuum tube photo-thermal performance monitoring device and a monitoring method, and belongs to the technical field of solar photo-thermal performance monitoring. The application relates to a solar vacuum tube photo-thermal performance monitoring device which comprises a detection device, a vacuum pump and a monitoring device, wherein the detection device comprises a solar vacuum tube, a non-imaging condenser and a controllable light source emitter, the solar vacuum tube is arranged at the A end of the non-imaging condenser, the controllable light source emitter is arranged at the B end of the non-imaging condenser, the central axis of the solar vacuum tube is parallel to the central axis of the light source of the controllable light source emitter, the plane where the central axis of the solar vacuum tube and the central axis of the light source of the controllable light source emitter are positioned is recorded as an O plane, and a first reflecting surface and a second reflecting surface of the non-imaging condenser are in mirror symmetry relative to the O plane; the vacuum pump is communicated with the outlet end of the solar vacuum tube, and the first temperature sensor and the second temperature sensor of the monitoring device are respectively arranged at the inlet end and the outlet end of the solar vacuum tube.
Description
Technical Field
The application relates to a solar vacuum tube photo-thermal performance monitoring device and a monitoring method, and belongs to the technical field of solar photo-thermal performance monitoring.
Background
With the continuous development of globalization and cultural exchange of society, the problems of energy exhaustion, environmental pollution, ecological damage and the like are becoming serious, and energy safety is becoming a topic of common attention of all people. Solar energy is used as a natural resource, and is one of the most competitive renewable energy sources by the international society due to the advantages of abundant reserves and no pollution. In order to meet the heat requirement of life and promote the realization of the aims of energy conservation and emission reduction, the solar radiation energy is condensed for heat utilization in a simple, direct and effective way. The Chinese operators are wide, the solar energy resources are rich, and the solar energy photo-thermal utilization range is gradually widened at present.
The solar vacuum tube has the advantages of simple structure, low economic cost, excellent thermal performance and the like, is widely applied to a solar heat utilization integrated system, is used as a carrier for solar photo-thermal conversion, and can efficiently convert solar radiation energy into directly utilized heat energy. However, when the performance of the solar vacuum tube is tested, the photo-thermal performance of the solar vacuum tube is difficult to be verified by real and effective experiments due to the limitation of factors such as time, space, weather conditions and the like.
Disclosure of Invention
Aiming at the problems that the monitoring of the photo-thermal performance of a solar vacuum tube is inaccurate and is limited by factors such as time, space and weather conditions, the application provides a solar vacuum tube photo-thermal performance monitoring device based on a non-imaging optical principle, namely, the solar vacuum tube photo-thermal performance monitoring device based on the non-imaging condensation effect is built by utilizing a solar vacuum tube, a non-imaging condenser, a light source emitter, a vacuum pump, a flowmeter, a data recorder, a data receiver and a computing mechanism, solar rays with different wave bands, different intensities and different angles are simulated by utilizing the light source emitter, the light rays are condensed and reflected by the non-imaging condenser, and finally, various thermal parameters of the solar vacuum tube photo-thermal performance monitoring device are converged on the surface of a vacuum tube absorber, and the photo-thermal performance of the solar vacuum tube is monitored conveniently, effectively and rapidly in a space-time-span mode by the flowmeter, the data recorder, the receiver and other devices; secondly, the light leakage-free V-shaped structure of the non-imaging condenser can effectively prevent light from escaping, so that the utilization efficiency of a light source is improved, and the V-shaped structure has good stability and is beneficial to the stable operation of the monitoring device.
The device is based on a non-imaging optical principle and comprises a detection device, a vacuum pump 4 and a monitoring device, wherein the detection device comprises a solar vacuum tube 1, a non-imaging condenser 2 and a controllable light source emitter 3, the non-imaging condenser 2 comprises an A end and a B end, the solar vacuum tube 1 is arranged in the non-imaging condenser 2 and is close to the A end of the non-imaging condenser 2, the controllable light source emitter 3 is arranged at the B end of the non-imaging condenser 2, the non-imaging condenser 2 and the controllable light source emitter 3 form a light source condensation closed structure, the central axis of the solar vacuum tube 1 is parallel to the light source central axis of the controllable light source emitter 3, the plane where the central axis of the solar vacuum tube 1 and the light source central axis of the controllable light source emitter 3 are positioned is marked as an O plane, the non-imaging condenser 2 is divided into a first reflecting surface 2-1 and a second reflecting surface 2-2 by the O plane, and the first reflecting surface 2-1 and the second reflecting surface 2-2 are in mirror symmetry relative to the O plane;
the two ends of the solar vacuum tube 1 are respectively an inlet end and an outlet end, the vacuum pump 4 is communicated with the outlet end of the solar vacuum tube 1, a first temperature sensor of the monitoring device is arranged at the inlet end of the solar vacuum tube 1, and a second temperature sensor of the monitoring device is arranged at the outlet end of the solar vacuum tube 1;
the solar vacuum tube 1 comprises a solar vacuum tube inner tube 1-1 and a solar vacuum tube outer tube 1-2, wherein the solar vacuum tube outer tube 1-2 is a transparent tube, and a light absorption conversion coating is coated on the outer wall of the solar vacuum tube inner tube 1-1 and can convert light into heat energy.
The monitoring device further comprises a flowmeter 5, a data recorder 6, a data receiver 7 and a computer 8, wherein the first temperature sensor and the second temperature sensor are both in signal connection with the data recorder 6, the flowmeter 5 is communicated with the outlet end of the solar vacuum tube 1, the flowmeter 5 is in signal connection with the data recorder 6, and the data recorder 6 is in wireless signal connection with the computer 8 through the data receiver 7.
The first reflecting surface 2-1 of the non-imaging condenser 2 comprises a first light leakage-free V-shaped structure reflecting surface and a first condensing reflecting curved surface, the second reflecting surface 2-2 comprises a second light leakage-free V-shaped structure reflecting surface and a second condensing reflecting curved surface, the first light leakage-free V-shaped structure reflecting surface and the second light leakage-free V-shaped structure reflecting surface are in mirror symmetry relative to an O plane, a first end of the first light leakage-free V-shaped structure reflecting surface is in seamless connection with a first end of the second light leakage-free V-shaped structure reflecting surface, the first condensing reflecting curved surface and the second condensing reflecting curved surface are in mirror symmetry relative to the O plane, the first end of the first condensing reflecting curved surface and a second end of the first light leakage-free V-shaped structure reflecting surface are in seamless connection, the second end of the first condensing reflecting curved surface and the upper end of the controllable light source emitter 3 are in seamless connection, and the second end of the second condensing curved surface and the lower end of the controllable light source emitter 3 are in seamless connection.
Preferably, the first light-leakage-free V-shaped structure reflecting surface comprises a V-shaped structure reflecting surface I and a V-shaped structure reflecting surface II which are connected in a seamless manner, the second light-leakage-free V-shaped structure reflecting surface comprises a V-shaped structure reflecting surface III and a V-shaped structure reflecting surface IV which are connected in a seamless manner,
the first end of the V-shaped structure reflecting surface I is in seamless connection with the first end of the V-shaped structure reflecting surface III, the second end of the V-shaped structure reflecting surface I is in seamless connection with the first end of the V-shaped structure reflecting surface II, the second end of the V-shaped structure reflecting surface II is in seamless connection with the first end of the first condensing reflecting curved surface, the second end of the V-shaped structure reflecting surface III is in seamless connection with the first end of the V-shaped structure reflecting surface IV, and the second end of the V-shaped structure reflecting surface IV is in seamless connection with the first end of the second condensing reflecting curved surface;
the V-shaped structure reflecting surface I, the V-shaped structure reflecting surface II, the V-shaped structure reflecting surface III and the V-shaped structure reflecting surface IV have the same structure.
Preferably, the V-shaped structure reflecting surface i is composed of a first reflecting plane and a second reflecting plane.
More preferably, the longitudinal section of the detection device is performed from top to bottom, on the longitudinal section of the detection device, a point corresponding to a connecting line of a first end of the V-shaped structure reflecting surface I and a first end of the V-shaped structure reflecting surface III is a point D, a point corresponding to an intersecting straight line of the first reflecting plane and the second reflecting plane is a point C, a point corresponding to an intersecting line of a second end of the first concentrating reflecting surface and the upper end surface of the controllable light source emitter 3 is a point B, a point corresponding to an intersecting line of a second end of the second concentrating reflecting surface and the lower end surface of the controllable light source emitter 3 is a point E, a line corresponding to the first light leakage-free V-shaped structure reflecting surface is a DA sawtooth line segment, a curve segment corresponding to the first concentrating reflecting surface is an AB curve segment, the AB curve segment consists of an AM curve segment and an MB curve segment, and a tangent line of the M is a horizontal line;
the corresponding point of the light source central axis of the controllable light source emitter 3 on the longitudinal section isO 2 The points are corresponding to the central axis of the solar vacuum tube 1O 1 The point being the origin of the coordinate system toO 1 Dots and dotsO 2 At the point ofO 1 O 2 The connecting line is the x-axis,O 1 at a point perpendicular toO 1 O 2 The straight line of the connecting line isyThe axes establishing a coordinate system, i.exo 1 yA coordinate system;
line segmentO 1 C and line segmentO 1 D forming an included angleωThe value of (2) is
ω=0.25arctan(r/R)
In the method, in the process of the application,ris the inner radius of the inner tube of the solar vacuum tube,Rthe maximum radius of the solar vacuum tube outer tube;
the width of the first reflection plane, i.e. the calculated formula of the line segment CD isIn the method, in the process of the application,R o the contour radius of the reflecting surface is the contour radius of the first light-leakage-free V-shaped structure;
xo 1 yin the coordinate system, setPThe point is any moving point of the AM curve segment, and the following equation is satisfied:in the method, in the process of the application,θfor any moving point on the AM curve segmentPIs connected with the line of (a)o 1 PAnd (3) withxThe included angle of the shaft negative half shaft,βis the starting position angle of the AM curve segment,f(θ) A vector control function for the non-imaging concentrator structure;
xo 1 yin the coordinate system, setQThe point is any moving point of the BM curve segment, and the following equation is satisfied:in the method, in the process of the application,Θarbitrary moving point of BM curve segmentQIs connected with the line of (a)EQAnd (3) withxIncluded angle of shaft negative half shaft，lFor the length of the light source emitter,Lis thato 1 And (3) witho 2 Is used for the distance of (a),αfor the non-imaging condenser structure control parameters, preferably, 30 degrees or lessα≤60°。
The solar vacuum tube photo-thermal performance monitoring method adopts the solar vacuum tube photo-thermal performance monitoring device based on the non-imaging optical principle, and comprises the following specific steps:
s1, according to real-time solar rays in different time periods, a controllable light source emitter emits simulated rays in different wave bands, different intensities and different incidence angles, and the simulated rays are totally reflected to the outer surface of a solar vacuum tube through a first reflecting surface and a second reflecting surface of a non-imaging condenser;
s2, converting the simulated light into heat energy through a light absorption conversion coating of the solar vacuum tube, and transmitting the heat energy to a heat collecting working medium in an inner tube of the solar vacuum tube, wherein the temperature of the heat collecting working medium is increased;
s3, accelerating the flow of heat collecting working media in the inner tube of the solar vacuum tube by the vacuum pump, monitoring the temperatures of the inlet end and the outlet end of the solar vacuum tube by the first temperature sensor and the second temperature sensor of the monitoring device in real time, monitoring the flow of the heat collecting working media at the outlet of the solar vacuum tube by the monitoring device in real time, and analyzing the photo-thermal performance of the solar vacuum tube under simulated light according to the real-time temperatures of the inlet end and the outlet end of the solar vacuum tube and the real-time flow of the heat collecting working media at the outlet of the solar vacuum tube, wherein the photo-thermal performance comprises photo-thermal conversion efficiency.
According to the application, the non-imaging condenser is utilized to effectively collect the simulated light rays with different wave bands, different intensities and different incidence angles emitted by the controllable light source emitter onto the surface of the solar vacuum tube, the vacuum pump is utilized to accelerate the flow of the heat collecting working medium in the inner tube of the solar vacuum tube, the monitoring device monitors the real-time temperature of the inlet end and the outlet end of the solar vacuum tube and the real-time flow of the heat collecting working medium at the outlet of the solar vacuum tube in real time, and the photo-thermal characteristics of the solar vacuum tube are effectively evaluated.
The beneficial effects of the application are as follows:
(1) The application realizes convenient and efficient test of the light and heat performance of the solar vacuum tube by using the non-imaging condenser: according to the real-time solar rays in different time periods, the controllable light source emitter emits simulated light rays in different wave bands, different spectral intensities and different incidence angles corresponding to the real-time solar rays, the simulated light rays are totally reflected to the outer surface of the solar vacuum tube through the first reflecting surface and the second reflecting surface of the non-imaging condenser, and are converted into heat energy through the light ray absorption conversion coating of the solar vacuum tube and transmitted to the heat collecting working medium, and the convenient and efficient test of the light and heat performance (such as the performance parameters such as the photo-thermal conversion efficiency) of the solar vacuum tube is realized by monitoring the real-time temperature of the inlet end and the outlet end of the solar vacuum tube and the real-time flow of the heat collecting working medium at the outlet of the solar vacuum tube;
(2) The solar vacuum tube photo-thermal performance monitoring device based on the non-imaging optical principle does not need to track during static operation: the light condensing structure consists of a non-imaging light condenser, has the advantage that a tracking device is not needed in static operation of the system, and the conventional tracking type solar light condensing system needs to be provided with a complex tracking device so as to realize dynamic tracking of solar energy, which is not beneficial to stable operation and economic benefit; the non-imaging condenser has the characteristics of high-efficiency condensation and no need of tracking, and the system has simple structure and static and stable operation, and is convenient for industrial integrated utilization;
(3) The solar vacuum tube photo-thermal performance monitoring device based on the non-imaging optical principle realizes the escape-free absorption of light rays: the conventional non-imaging condenser is mainly used for low-power condensation, the receiving half angle is smaller, the non-imaging condensation structure can maximally receive incident light rays of all angles, and the controllable light source emitter emits simulated light rays of different wave bands, different intensities and different incident angles to be totally reflected to the surface of the solar vacuum tube to realize high-efficiency condensation, so that light escape between the inner pipe clamp layer and the outer pipe clamp layer of the solar vacuum tube can be effectively eliminated, and the utilization rate of the light source is improved;
(4) The solar vacuum tube photo-thermal performance monitoring device based on the non-imaging optical principle is not limited by space-time and weather conditions: the controllable light source emitter is used for emitting simulated light to realize the monitoring of the light and heat performance of the solar vacuum tube, an outdoor experiment is not needed, the interference of time, space and weather conditions is avoided, the limitation of space time, weather and environment can be spanned, the operation is simple, convenient and quick, and the practical application is facilitated;
(5) According to the solar vacuum tube photo-thermal performance monitoring device based on the non-imaging optical principle, the controllable light source emitter can emit simulated light with specific wavelength, intensity and angle, the performance test of the solar vacuum tube can be monitored in a targeted manner in a short time through the regulation and control of specific variables, and the debugging process is simple, convenient and quick, so that the device has the characteristics of low power consumption and high efficiency;
(6) According to the solar vacuum tube photothermal performance monitoring device based on the non-imaging optical principle, the simulated light emitted by the controllable light source emitter can be flexibly set according to requirements, actual experimental conditions are simulated in real time, and the light totally reaches the solar vacuum tube after being reflected by the light-gathering reflecting surface and the light-leakage-free V-shaped structure, so that the light source waste can be reduced, and the solar vacuum tube has the application advantages of high efficiency and energy conservation;
(7) According to the solar vacuum tube photothermal performance monitoring device based on the non-imaging optical principle, the first reflecting surface and the second reflecting surface of the non-imaging condenser can effectively prevent the interference of external environments, such as light interference, dust accumulation, hardware damage and the like, so that the protection effect of the monitoring device on the solar vacuum tube in the operation process is enhanced, the monitoring process has the characteristics of safety and reliability, and the adaptability of the monitoring device to the working environment is remarkably improved;
(8) According to the solar vacuum tube photo-thermal performance monitoring device based on the non-imaging optical principle, thermal performance parameters such as inlet and outlet temperature, flow, photo-thermal conversion efficiency and the like of the solar vacuum tube can be simply and effectively measured through the monitoring device, the operation is simple and convenient, the computer can dynamically display and store measurement data, manual intervention is not needed, and the solar vacuum tube photo-thermal performance monitoring device has the advantages of being intelligent, rapid and simple and convenient, and can be well applied to the engineering field.
Drawings
FIG. 1 is a schematic diagram of a solar vacuum tube photo-thermal performance monitoring device;
FIG. 2 is a schematic view of a longitudinal section structure of the detecting device;
FIG. 3 is a schematic view of a non-imaging concentrator;
in the figure, a 1-solar vacuum tube, a 1-1-solar vacuum tube inner tube, a 1-2-solar vacuum tube outer tube, a 2-non-imaging condenser, a 2-1-first reflecting surface, a 2-2-second reflecting surface, a 3-controllable light source emitter, a 4-vacuum pump, a 5-flowmeter, a 6-data recorder, a 7-data receiver and an 8-computer are arranged.
Detailed Description
The application will be described in further detail with reference to specific embodiments, but the scope of the application is not limited to the description.
Example 1: the device is based on a non-imaging optical principle and comprises a detection device, a vacuum pump 4 and a monitoring device, wherein the detection device comprises a solar vacuum tube 1, a non-imaging condenser 2 and a controllable light source emitter 3, the non-imaging condenser 2 comprises an end A and an end B, the solar vacuum tube 1 is arranged in the non-imaging condenser 2 and is close to the end A of the non-imaging condenser 2, the controllable light source emitter 3 is arranged at the end B of the non-imaging condenser 2, the non-imaging condenser 2 and the controllable light source emitter 3 form a light source condensation closed structure, the central axis of the solar vacuum tube 1 is parallel to the light source central axis of the controllable light source emitter 3, the plane where the central axis of the solar vacuum tube 1 and the light source central axis of the controllable light source emitter 3 are located is recorded as an O plane, the non-imaging condenser 2 is divided into a first reflecting surface 2-1 and a second reflecting surface 2-2 by the O plane, and the first reflecting surface 2-1 and the second reflecting surface 2-2 are mirror images symmetrical relative to the O plane;
the two ends of the solar vacuum tube 1 are respectively an inlet end and an outlet end, the vacuum pump 4 is communicated with the outlet end of the solar vacuum tube 1, a first temperature sensor of the monitoring device is arranged at the inlet end of the solar vacuum tube 1, and a second temperature sensor of the monitoring device is arranged at the outlet end of the solar vacuum tube 1;
the solar vacuum tube 1 comprises a solar vacuum tube inner tube 1-1 and a solar vacuum tube outer tube 1-2, wherein the solar vacuum tube outer tube 1-2 is a transparent tube, and the outer wall of the solar vacuum tube inner tube 1-1 is coated with a light absorption conversion coating which can convert light into heat energy;
the solar vacuum tube photo-thermal performance monitoring method adopts the solar vacuum tube photo-thermal performance monitoring device based on the non-imaging optical principle, and comprises the following specific steps:
s1, according to real-time solar rays in different time periods, a controllable light source emitter emits simulated rays in different wave bands, different intensities and different incidence angles, and the simulated rays are totally reflected to the outer surface of a solar vacuum tube through a first reflecting surface and a second reflecting surface of a non-imaging condenser;
s2, converting the simulated light into heat energy through a light absorption conversion coating of the solar vacuum tube, and transmitting the heat energy to a heat collecting working medium in an inner tube of the solar vacuum tube, wherein the temperature of the heat collecting working medium is increased;
s3, accelerating the flow of heat collecting working media in the inner tube of the solar vacuum tube by the vacuum pump, monitoring the temperatures of the inlet end and the outlet end of the solar vacuum tube by the first temperature sensor and the second temperature sensor of the monitoring device in real time, monitoring the flow of the heat collecting working media at the outlet of the solar vacuum tube by the monitoring device in real time, and analyzing the photo-thermal performance of the solar vacuum tube under simulated light according to the real-time temperatures of the inlet end and the outlet end of the solar vacuum tube and the real-time flow of the heat collecting working media at the outlet of the solar vacuum tube, wherein the photo-thermal performance comprises photo-thermal conversion efficiency.
Example 2: the solar vacuum tube photo-thermal performance monitoring device of this embodiment is basically the same as the solar vacuum tube photo-thermal performance monitoring device of embodiment 1 in that: the monitoring device further comprises a flowmeter 5, a data recorder 6, a data receiver 7 and a computer 8, wherein the first temperature sensor and the second temperature sensor are both in signal connection with the data recorder 6, the flowmeter 5 is communicated with the outlet end of the solar vacuum tube 1, the flowmeter 5 is in signal connection with the data recorder 6, and the data recorder 6 is in wireless signal connection with the computer 8 through the data receiver 7;
because the heat collecting working medium flows at a constant speed, the real-time flow of the heat collecting working medium at the outlet end of the solar vacuum tube 1 is monitored in real time through the flowmeter 5, namely the overall flow rate of the heat collecting working medium is monitored, the first temperature sensor and the second temperature sensor monitor the real-time temperature of the inlet end and the outlet end of the solar vacuum tube respectively, the real-time flow and the real-time temperature of the inlet end and the outlet end of the solar vacuum tube are recorded through the data recorder 6 and then transmitted to the computer 8 through the data receiver 7, and the computer 8 analyzes the photo-thermal performance of the solar vacuum tube under simulated light according to the real-time temperature of the inlet end and the outlet end of the solar vacuum tube and the real-time flow of the heat collecting working medium at the outlet end of the solar vacuum tube.
Example 3: the solar vacuum tube photo-thermal performance monitoring device of this embodiment is basically the same as the solar vacuum tube photo-thermal performance monitoring device of embodiment 2 in that: the first reflecting surface 2-1 of the non-imaging condenser 2 comprises a first light leakage-free V-shaped structure reflecting surface and a first condensing reflecting curved surface, the second reflecting surface 2-2 comprises a second light leakage-free V-shaped structure reflecting surface and a second condensing reflecting curved surface, the first light leakage-free V-shaped structure reflecting surface and the second light leakage-free V-shaped structure reflecting surface are in mirror symmetry relative to an O plane, a first end of the first light leakage-free V-shaped structure reflecting surface is in seamless connection with a first end of the second light leakage-free V-shaped structure reflecting surface, the first condensing reflecting curved surface and the second condensing reflecting curved surface are in mirror symmetry relative to the O plane, the first end of the first condensing reflecting curved surface and a second end of the first light leakage-free V-shaped structure reflecting surface are in seamless connection, the second end of the first condensing reflecting curved surface and the upper end of the controllable light source emitter 3 are in seamless connection, and the second end of the second condensing curved surface and the lower end of the controllable light source emitter 3 are in seamless connection;
the first light-leakage-free V-shaped structure reflecting surface comprises a V-shaped structure reflecting surface I and a V-shaped structure reflecting surface II which are connected in a seamless manner, the second light-leakage-free V-shaped structure reflecting surface comprises a V-shaped structure reflecting surface III and a V-shaped structure reflecting surface IV which are connected in a seamless manner,
the first end of the V-shaped structure reflecting surface I is in seamless connection with the first end of the V-shaped structure reflecting surface III, the second end of the V-shaped structure reflecting surface I is in seamless connection with the first end of the V-shaped structure reflecting surface II, the second end of the V-shaped structure reflecting surface II is in seamless connection with the first end of the first condensing reflecting curved surface, the second end of the V-shaped structure reflecting surface III is in seamless connection with the first end of the V-shaped structure reflecting surface IV, and the second end of the V-shaped structure reflecting surface IV is in seamless connection with the first end of the second condensing reflecting curved surface;
the V-shaped structure reflecting surface I, the V-shaped structure reflecting surface II, the V-shaped structure reflecting surface III and the V-shaped structure reflecting surface IV have the same structure;
the V-shaped structure reflecting surface I consists of a first reflecting plane and a second reflecting plane;
the method comprises the steps of carrying out longitudinal section on a detection device from top to bottom, wherein on the longitudinal section of the detection device, a point corresponding to a connecting line of a first end of a V-shaped structure reflecting surface I and a first end of a V-shaped structure reflecting surface III is a point D, a point corresponding to an intersecting straight line of a first reflecting plane and a second reflecting plane is a point C, a point corresponding to an intersecting line of a second end of a first condensing reflecting curved surface and an upper end face of a controllable light source emitter 3 is a point B, a point corresponding to an intersecting line of a second end of a second condensing reflecting curved surface and a lower end face of the controllable light source emitter 3 is a point E, a line corresponding to the first light-leakage-free V-shaped structure reflecting surface is a DA saw tooth line segment, a curve segment corresponding to the first condensing reflecting curved surface is an AB curve segment, the AB curve segment consists of an AM curve segment and an MB curve segment, and a tangent line of the M points is a horizontal line;
the corresponding point of the light source central axis of the controllable light source emitter 3 on the longitudinal section isO 2 The points are corresponding to the central axis of the solar vacuum tube 1O 1 The point being the origin of the coordinate system toO 1 Dots and dotsO 2 At the point ofO 1 O 2 The connecting line is the x-axis,O 1 at a point perpendicular toO 1 O 2 The straight line of the connecting line isyThe axes establishing a coordinate system, i.exo 1 yA coordinate system;
line segmentO 1 C and line segmentO 1 D forming an included angleωThe value of (2) is
ω=0.25arctan(r/R)
In the method, in the process of the application,ris the inner radius of the inner tube of the solar vacuum tube,Rthe maximum radius of the solar vacuum tube outer tube;
the width of the first reflection plane, i.e. the calculated formula of the line segment CD isIn the method, in the process of the application,R o the contour radius of the reflecting surface is the contour radius of the first light-leakage-free V-shaped structure;
xo 1 yin the coordinate system, setPThe point is any moving point of the AM curve segment, and the following equation is satisfied:in the method, in the process of the application,θfor any moving point on the AM curve segmentPIs connected with the line of (a)o 1 PAnd (3) withxThe included angle of the shaft negative half shaft,βis the starting position angle of the AM curve segment,f(θ) A vector control function for the non-imaging concentrator structure;
xo 1 yin the coordinate system, setQThe point is any moving point of the BM curve segment, and the following equation is satisfied:in the method, in the process of the application,Θarbitrary moving point of BM curve segmentQIs connected with the line of (a)EQAnd (3) withxThe included angle of the shaft negative half shaft,lfor the length of the light source emitter,Lis thato 1 And (3) witho 2 Is used for the distance of (a),αfor the non-imaging condenser structure control parameters, preferably, 30 degrees or lessαLess than or equal to 60 DEG, determined by the size of the controllable light source emitter;
the solar vacuum tube photo-thermal performance monitoring method adopts the solar vacuum tube photo-thermal performance monitoring device based on the non-imaging optical principle, and comprises the following specific steps:
s1, according to real-time solar rays in different time periods, a controllable light source emitter emits simulated rays in different wave bands, different intensities and different incidence angles, and the simulated rays are totally reflected to the outer surface of a solar vacuum tube through a first reflecting surface and a second reflecting surface of a non-imaging condenser;
specifically, as shown in fig. 2, the controllable light source emitter emits parallel simulated light, and the parallel simulated light is totally reflected to the outer surface of the solar vacuum tube through the first condensation reflection curved surface of the non-imaging condenser 2; similarly, the parallel simulated light rays can be totally reflected to the outer surface of the solar vacuum tube through the second light condensation reflecting curved surface of the non-imaging condenser 2;
as shown in fig. 3, the controllable light source emitter emits simulated light rays with different incident angles, the simulated light rays are reflected to the outer surface of the solar vacuum tube through the first condensation reflection curved surface part of the non-imaging condenser 2, the other part of the simulated light rays are reflected to the first light-leakage-free V-shaped structure reflecting surface and/or the second light-leakage-free V-shaped structure reflecting surface, and the first light-leakage-free V-shaped structure reflecting surface and/or the second light-leakage-free V-shaped structure reflecting surface reflect the simulated light rays for one or more times and converge the simulated light rays to the surface of the solar vacuum tube; similarly, the simulated light can be reflected to the outer surface of the solar vacuum tube through the second light condensation curved surface part of the non-imaging condenser 2, and the other part is reflected to the first light leakage-free V-shaped structure reflecting surface and/or the second light leakage-free V-shaped structure reflecting surface, and the first light leakage-free V-shaped structure reflecting surface and/or the second light leakage-free V-shaped structure reflecting surface reflect the simulated light for one or more times and converge the simulated light to the surface of the solar vacuum tube;
s2, simulating light rays pass through a transparent outer tube of the solar vacuum tube, are converted into heat energy through a light ray absorption conversion coating on the outer wall of an inner tube of the solar vacuum tube and are transmitted to a heat collecting working medium in the inner tube of the solar vacuum tube, and the temperature of the heat collecting working medium is increased;
s3, accelerating the flow of heat collecting working media in an inner tube of the solar vacuum tube by a vacuum pump, monitoring the temperatures of an inlet end and an outlet end of the solar vacuum tube by a first temperature sensor and a second temperature sensor of a monitoring device in real time, monitoring the flow of the heat collecting working media at the outlet of the solar vacuum tube by a flowmeter of the monitoring device in real time, recording the temperatures of the inlet end and the outlet end of the solar vacuum tube and the flow of the heat collecting working media at the outlet of the solar vacuum tube by a data recorder 6, transmitting the recorded temperatures and the flow to a computer 8 by a data receiver 7, and analyzing and simulating the photo-thermal performance of the solar vacuum tube under light according to the real-time temperatures of the inlet end and the outlet end of the solar vacuum tube and the real-time flow of the heat collecting working media at the outlet of the solar vacuum tube by the computer 8, wherein the photo-thermal performance comprises photo-thermal conversion efficiency.
While the specific embodiments of the present application have been described in detail, the present application is not limited to the above embodiments, and various changes may be made without departing from the spirit of the present application within the knowledge of those skilled in the art.
Claims (3)
1. The utility model provides a solar vacuum tube photothermal performance monitoring devices which characterized in that: the device comprises a detection device, a vacuum pump (4) and a monitoring device, wherein the detection device comprises a solar vacuum tube (1), a non-imaging condenser (2) and a controllable light source emitter (3), the non-imaging condenser (2) comprises an A end and a B end, the solar vacuum tube (1) is arranged in the non-imaging condenser (2) and is close to the A end of the non-imaging condenser (2), the controllable light source emitter (3) is arranged at the B end of the non-imaging condenser (2), the non-imaging condenser (2) and the controllable light source emitter (3) form a light source condensation closed structure, the central axis of the solar vacuum tube (1) is parallel to the light source central axis of the controllable light source emitter (3), the plane where the central axis of the solar vacuum tube (1) and the light source central axis of the controllable light source emitter (3) are located is recorded as an O plane, the non-imaging condenser (2) is divided into a first reflecting surface (2-1) and a second reflecting surface (2-2), and the first reflecting surface (2-1) and the second reflecting surface (2-2) are in mirror symmetry relative to the O plane;
the solar vacuum tube (1) comprises a solar vacuum tube inner tube (1-1) and a solar vacuum tube outer tube (1-2);
the two ends of the solar vacuum tube (1) are respectively an inlet end and an outlet end, the vacuum pump (4) is communicated with the outlet end of the solar vacuum tube (1), a first temperature sensor of the monitoring device is arranged at the inlet end of the solar vacuum tube (1), and a second temperature sensor of the monitoring device is arranged at the outlet end of the solar vacuum tube (1);
the first reflecting surface (2-1) of the non-imaging condenser (2) comprises a first light leakage-free V-shaped structure reflecting surface and a first condensing reflecting curved surface, the second reflecting surface (2-2) comprises a second light leakage-free V-shaped structure reflecting surface and a second condensing reflecting curved surface, the first light leakage-free V-shaped structure reflecting surface and the second light leakage-free V-shaped structure reflecting surface are in mirror symmetry relative to an O plane, a first end of the first light leakage-free V-shaped structure reflecting surface is in seamless connection with a first end of the second light leakage-free V-shaped structure reflecting surface, the first condensing reflecting curved surface and the second condensing reflecting curved surface are in mirror symmetry relative to the O plane, the first end of the first condensing reflecting curved surface and the second end of the first light leakage-free V-shaped structure reflecting surface are in seamless connection, the second end of the first condensing reflecting curved surface and the upper end of the controllable light source emitter (3) are in seamless connection, and the second end of the second condensing curved surface and the lower end of the controllable light source emitter (3) are in seamless connection;
the first light-leakage-free V-shaped structure reflecting surface comprises a V-shaped structure reflecting surface I and a V-shaped structure reflecting surface II which are connected in a seamless manner, the second light-leakage-free V-shaped structure reflecting surface comprises a V-shaped structure reflecting surface III and a V-shaped structure reflecting surface IV which are connected in a seamless manner,
the first end of the V-shaped structure reflecting surface I is in seamless connection with the first end of the V-shaped structure reflecting surface III, the second end of the V-shaped structure reflecting surface I is in seamless connection with the first end of the V-shaped structure reflecting surface II, the second end of the V-shaped structure reflecting surface II is in seamless connection with the first end of the first condensing reflecting curved surface, the second end of the V-shaped structure reflecting surface III is in seamless connection with the first end of the V-shaped structure reflecting surface IV, and the second end of the V-shaped structure reflecting surface IV is in seamless connection with the first end of the second condensing reflecting curved surface;
the V-shaped structure reflecting surface I, the V-shaped structure reflecting surface II, the V-shaped structure reflecting surface III and the V-shaped structure reflecting surface IV have the same structure;
the V-shaped structure reflecting surface I consists of a first reflecting plane and a second reflecting plane;
on a longitudinal section of the detection device, a point corresponding to a connecting line of a first end of the V-shaped structure reflecting surface I and a first end of the V-shaped structure reflecting surface III is a point D, a point corresponding to an intersecting straight line of a first reflecting plane and a second reflecting plane is a point C, a point corresponding to an intersecting line of a second end of the first concentrating reflecting curved surface and an upper end surface of the controllable light source emitter (3) is a point B, a point corresponding to an intersecting line of a second end of the second concentrating reflecting curved surface and a lower end surface of the controllable light source emitter (3) is a point E, a line corresponding to the first light leakage-free V-shaped structure reflecting surface is a DA saw-tooth line segment, a curve segment corresponding to the first concentrating reflecting curved surface is an AB curve segment, the AB curve segment consists of an AM curve segment and an MB curve segment, and a tangent line of the M points is a horizontal line;
the corresponding point of the light source central axis of the controllable light source emitter (3) on the longitudinal section isO 2 The points are corresponding to the central axis of the solar vacuum tube (1)O 1 The point being the origin of the coordinate system toO 1 Dots and dotsO 2 At the point ofO 1 O 2 The connecting line is the x-axis,O 1 at a point perpendicular toO 1 O 2 The straight line of the connecting line isyThe axes establishing a coordinate system, i.exo 1 yA coordinate system;
line segmentO 1 C and line segmentO 1 D forms an included angle ofω；
The width of the first reflection plane, i.e. the calculated formula of the line segment CD is
In the method, in the process of the application,R o the contour radius of the reflecting surface is the contour radius of the first light-leakage-free V-shaped structure;
xo 1 yin the coordinate system, setPThe point is any moving point of the AM curve segment, and the following equation is satisfied:
in the method, in the process of the application,θfor any moving point on the AM curve segmentPIs connected with the line of (a)o 1 PAnd (3) withxThe included angle of the shaft negative half shaft,βis the starting position angle of the AM curve segment,f(θ) A vector control function for the non-imaging concentrator structure;
xo 1 yin the coordinate system, setQThe point is any moving point of the BM curve segment, and the following equation is satisfied:
in the method, in the process of the application,Θarbitrary moving point of BM curve segmentQIs connected with the line of (a)EQAnd (3) withxThe included angle of the shaft negative half shaft,lfor the length of the light source emitter,Lis thato 1 And (3) witho 2 Is used for the distance of (a),αparameters are controlled for the non-imaging concentrator structure.
2. The solar vacuum tube photothermal performance monitoring apparatus of claim 1, wherein: the monitoring device further comprises a flowmeter (5), a data recorder (6), a data receiver (7) and a computer (8), wherein the first temperature sensor and the second temperature sensor are both in signal connection with the data recorder (6), the flowmeter (5) is communicated with the outlet end of the solar vacuum tube (1), the flowmeter (5) is in signal connection with the data recorder (6), and the data recorder (6) is in wireless signal connection with the computer (8) through the data receiver (7).
3. A solar vacuum tube photo-thermal performance monitoring method is characterized in that: the solar vacuum tube photo-thermal performance monitoring device according to any one of claims 1-2 comprises the following specific steps:
s1, according to real-time solar rays in different time periods, a controllable light source emitter emits simulated rays in different wave bands, different intensities and different incidence angles, and the simulated rays are totally reflected to the outer surface of a solar vacuum tube through a first reflecting surface and a second reflecting surface of a non-imaging condenser;
s2, converting the simulated light into heat energy through a light absorption conversion coating of the solar vacuum tube, and transmitting the heat energy to a heat collecting working medium in an inner tube of the solar vacuum tube, wherein the temperature of the heat collecting working medium is increased;
s3, accelerating the flow of heat collecting working media in the inner tube of the solar vacuum tube by the vacuum pump, monitoring the temperatures of the inlet end and the outlet end of the solar vacuum tube by the first temperature sensor and the second temperature sensor of the monitoring device in real time, monitoring the flow of the heat collecting working media at the outlet of the solar vacuum tube by the monitoring device in real time, and analyzing the photo-thermal performance of the solar vacuum tube under simulated light according to the real-time temperatures of the inlet end and the outlet end of the solar vacuum tube and the real-time flow of the heat collecting working media at the outlet of the solar vacuum tube, wherein the photo-thermal performance comprises photo-thermal conversion efficiency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310473202.7A CN116202237B (en) | 2023-04-28 | 2023-04-28 | Solar vacuum tube photo-thermal performance monitoring device and monitoring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310473202.7A CN116202237B (en) | 2023-04-28 | 2023-04-28 | Solar vacuum tube photo-thermal performance monitoring device and monitoring method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116202237A CN116202237A (en) | 2023-06-02 |
| CN116202237B true CN116202237B (en) | 2023-08-11 |
Family
ID=86515982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310473202.7A Active CN116202237B (en) | 2023-04-28 | 2023-04-28 | Solar vacuum tube photo-thermal performance monitoring device and monitoring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116202237B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117805011A (en) * | 2024-03-01 | 2024-04-02 | 山东龙光天旭太阳能有限公司 | Vacuum heat collecting pipe performance detection device |
Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4432345A (en) * | 1981-03-13 | 1984-02-21 | The United States Of America As Represented By The United States Department Of Energy | Receiver for solar energy collector having improved aperture aspect |
| JP2002314112A (en) * | 2001-04-16 | 2002-10-25 | Sumitomo 3M Ltd | Photovoltaic power generating system |
| JP3682300B2 (en) * | 1995-07-07 | 2005-08-10 | アーチ・デヴェロップメント・コーポレイション | Non-imaging optical concentrator and illumination system |
| EP1015824B1 (en) * | 1997-09-19 | 2005-11-16 | Solar Enterprises International, L.L.C. | Nonimaging solar collector |
| JP3880621B2 (en) * | 1994-12-23 | 2007-02-14 | ソーラー・エンタープライジズ・インターナショナル・リミテット・ライアビリティ・カンパニー | Non-imaging type solar concentrator |
| CN101776325A (en) * | 2010-01-13 | 2010-07-14 | 东南大学 | Compound parabolic condenser combining inside condensation and outside condensation |
| CN201547966U (en) * | 2009-09-07 | 2010-08-11 | 东南大学 | Two-dimensional composite parabolic condenser |
| CN103743129A (en) * | 2014-01-21 | 2014-04-23 | 皇明太阳能股份有限公司 | Optical efficiency testing device for medium-high temperature solar collector tube |
| CN203687409U (en) * | 2014-01-21 | 2014-07-02 | 皇明太阳能股份有限公司 | Optical efficiency testing device of medium-and-high-temperature solar heat collecting tube |
| EP2796808A2 (en) * | 2013-04-26 | 2014-10-29 | Hans Renner | Radiation energy collector and lamellae and lamella assembly for the same |
| CN105319051A (en) * | 2015-11-24 | 2016-02-10 | 中国科学院工程热物理研究所 | Work platform for testing optical efficiency of groove type solar thermal collector |
| CN107560197A (en) * | 2016-06-30 | 2018-01-09 | 北京旭日晶旸太阳能科技有限公司 | A kind of light-concentrating solar heat-collection device |
| CN107703182A (en) * | 2017-08-25 | 2018-02-16 | 中国科学院电工研究所 | The optical efficiency measurement apparatus and its method of testing of groove type solar thermal-collecting tube |
| CN108507200A (en) * | 2018-05-03 | 2018-09-07 | 昆明理工大学 | A kind of high-gain solar energy composite plane concentrator |
| CN108645056A (en) * | 2018-05-03 | 2018-10-12 | 昆明理工大学 | A kind of equal receptions escape half-angle solar light-condensing and heat-collecting device |
| CN108645073A (en) * | 2018-05-03 | 2018-10-12 | 昆明理工大学 | A kind of absorption system of solar energy energy supply |
| CN111465827A (en) * | 2017-12-13 | 2020-07-28 | 特里纳米克斯股份有限公司 | Spectrometer apparatus and system |
| CN112212523A (en) * | 2019-07-09 | 2021-01-12 | 内蒙古工业大学 | One-dimensional heat transfer mathematical model of heat pipe type vacuum tube light-gathering heat-collecting system and application thereof |
| WO2022076593A1 (en) * | 2020-10-06 | 2022-04-14 | The Regents Of The University Of California | Nonimaging asymmetric shadeless collector |
| CN114413486A (en) * | 2021-12-28 | 2022-04-29 | 河海大学 | Fluid dot-matrix magnetic control enhanced absorption solar heat collection device |
| CN216694037U (en) * | 2021-12-28 | 2022-06-07 | 河海大学 | Fluid dot matrix type magnetic control enhanced absorption solar heat collection device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8815402B2 (en) * | 2010-03-31 | 2014-08-26 | Ppg Industries Ohio, Inc. | Mirror having reflective coatings on a first surface and an opposite second surface |
| ITUB20150365A1 (en) * | 2015-04-21 | 2016-10-21 | Balderrie Energies Gmbh | Solar energy collection device by means of a concentrator of the non-imaging type. |
-
2023
- 2023-04-28 CN CN202310473202.7A patent/CN116202237B/en active Active
Patent Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4432345A (en) * | 1981-03-13 | 1984-02-21 | The United States Of America As Represented By The United States Department Of Energy | Receiver for solar energy collector having improved aperture aspect |
| JP3880621B2 (en) * | 1994-12-23 | 2007-02-14 | ソーラー・エンタープライジズ・インターナショナル・リミテット・ライアビリティ・カンパニー | Non-imaging type solar concentrator |
| JP3682300B2 (en) * | 1995-07-07 | 2005-08-10 | アーチ・デヴェロップメント・コーポレイション | Non-imaging optical concentrator and illumination system |
| EP1015824B1 (en) * | 1997-09-19 | 2005-11-16 | Solar Enterprises International, L.L.C. | Nonimaging solar collector |
| JP2002314112A (en) * | 2001-04-16 | 2002-10-25 | Sumitomo 3M Ltd | Photovoltaic power generating system |
| CN201547966U (en) * | 2009-09-07 | 2010-08-11 | 东南大学 | Two-dimensional composite parabolic condenser |
| CN101776325A (en) * | 2010-01-13 | 2010-07-14 | 东南大学 | Compound parabolic condenser combining inside condensation and outside condensation |
| EP2796808A2 (en) * | 2013-04-26 | 2014-10-29 | Hans Renner | Radiation energy collector and lamellae and lamella assembly for the same |
| CN103743129A (en) * | 2014-01-21 | 2014-04-23 | 皇明太阳能股份有限公司 | Optical efficiency testing device for medium-high temperature solar collector tube |
| CN203687409U (en) * | 2014-01-21 | 2014-07-02 | 皇明太阳能股份有限公司 | Optical efficiency testing device of medium-and-high-temperature solar heat collecting tube |
| CN105319051A (en) * | 2015-11-24 | 2016-02-10 | 中国科学院工程热物理研究所 | Work platform for testing optical efficiency of groove type solar thermal collector |
| CN107560197A (en) * | 2016-06-30 | 2018-01-09 | 北京旭日晶旸太阳能科技有限公司 | A kind of light-concentrating solar heat-collection device |
| CN107703182A (en) * | 2017-08-25 | 2018-02-16 | 中国科学院电工研究所 | The optical efficiency measurement apparatus and its method of testing of groove type solar thermal-collecting tube |
| CN111465827A (en) * | 2017-12-13 | 2020-07-28 | 特里纳米克斯股份有限公司 | Spectrometer apparatus and system |
| CN108507200A (en) * | 2018-05-03 | 2018-09-07 | 昆明理工大学 | A kind of high-gain solar energy composite plane concentrator |
| CN108645056A (en) * | 2018-05-03 | 2018-10-12 | 昆明理工大学 | A kind of equal receptions escape half-angle solar light-condensing and heat-collecting device |
| CN108645073A (en) * | 2018-05-03 | 2018-10-12 | 昆明理工大学 | A kind of absorption system of solar energy energy supply |
| CN112212523A (en) * | 2019-07-09 | 2021-01-12 | 内蒙古工业大学 | One-dimensional heat transfer mathematical model of heat pipe type vacuum tube light-gathering heat-collecting system and application thereof |
| WO2022076593A1 (en) * | 2020-10-06 | 2022-04-14 | The Regents Of The University Of California | Nonimaging asymmetric shadeless collector |
| CN114413486A (en) * | 2021-12-28 | 2022-04-29 | 河海大学 | Fluid dot-matrix magnetic control enhanced absorption solar heat collection device |
| CN216694037U (en) * | 2021-12-28 | 2022-06-07 | 河海大学 | Fluid dot matrix type magnetic control enhanced absorption solar heat collection device |
Non-Patent Citations (1)
| Title |
|---|
| 关于管状CPC缝隙的相关问题的分析;余雷;太阳能学报;246-251 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116202237A (en) | 2023-06-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN116202237B (en) | Solar vacuum tube photo-thermal performance monitoring device and monitoring method | |
| CN102620442A (en) | Solar heat collector based on groove type parabolic mirror and artificial blackbody | |
| CN104990286A (en) | Composite paraboloid solar collector | |
| CN107166755A (en) | Secondary condensation face strengthens fresnel reflecting mirror line-focusing solar collection device | |
| CN201583020U (en) | Transmission type line-focus solar collector system | |
| CN109871996A (en) | A kind of tower photo-thermal power station mirror field cloud monitoring System and method for based on photovoltaic panel | |
| CN115468320A (en) | Novel point focusing photo-thermal system | |
| CN107166760A (en) | Secondary condensation face strengthens parabolic mirror line-focusing solar collection device | |
| CN103673320A (en) | Solar heat collection device | |
| Chang et al. | Performance analysis of compound parabolic concentration photothermal and photoelectricity device for soil heating in facility agriculture | |
| CN107421136A (en) | A kind of groove type solar concentrator | |
| CN210051262U (en) | System for measuring light spot diameter of solar mirror field | |
| CN1110662C (en) | Automatic sun-orienting reflective solar boiler | |
| CN105577105B (en) | A kind of asymmetric concentrating photovoltaic photo-thermal system being fixedly mounted | |
| CN201138082Y (en) | Solar energy receiving apparatus | |
| JPH0293253A (en) | Light condensing and heat collecting device | |
| CN209485661U (en) | A kind of device for the test of parabolic trough type solar thermal collector efficiency | |
| US20210239364A1 (en) | Double-Line Focusing Solar Energy Collection Apparatus | |
| CN205619587U (en) | Multicell solar energy cavity formula heat absorber of two parabolas | |
| CN2171821Y (en) | Numerical controlled solar boiler with step temp. rising | |
| Bie et al. | Optical and thermal performance-cost evaluation for different segmentation of a novel equal-length multi-section compound parabolic concentrator | |
| CN210267764U (en) | Solar heat collector | |
| CN110210146B (en) | System and method for determining optimal opening diameter of cavity type heat absorber | |
| CN213901523U (en) | Tower-type solar receiver for diverging light by utilizing concave lens | |
| CN1049276C (en) | Solar energy collector with non-motion tracking function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Fei Inventor after: Jiang Shuoxun Inventor after: Jiao Feng Inventor after: Liu Yang Inventor before: Jiao Feng Inventor before: Jiang Shuoxun Inventor before: Chen Fei Inventor before: Liu Yang |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |