CN102252826B - Device and method for testing light concentration efficiency of high-parallelism and large-aperture light concentration system - Google Patents

Device and method for testing light concentration efficiency of high-parallelism and large-aperture light concentration system Download PDF

Info

Publication number
CN102252826B
CN102252826B CN 201110095498 CN201110095498A CN102252826B CN 102252826 B CN102252826 B CN 102252826B CN 201110095498 CN201110095498 CN 201110095498 CN 201110095498 A CN201110095498 A CN 201110095498A CN 102252826 B CN102252826 B CN 102252826B
Authority
CN
China
Prior art keywords
light
condenser system
gathering efficiency
detector
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.)
Expired - Fee Related
Application number
CN 201110095498
Other languages
Chinese (zh)
Other versions
CN102252826A (en
Inventor
赵会富
刘华
卢振武
荆雷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changchun Institute of Optics Fine Mechanics and Physics of CAS
Original Assignee
Changchun Institute of Optics Fine Mechanics and Physics of CAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Changchun Institute of Optics Fine Mechanics and Physics of CAS filed Critical Changchun Institute of Optics Fine Mechanics and Physics of CAS
Priority to CN 201110095498 priority Critical patent/CN102252826B/en
Publication of CN102252826A publication Critical patent/CN102252826A/en
Application granted granted Critical
Publication of CN102252826B publication Critical patent/CN102252826B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

The invention discloses a device and a method for testing light concentration efficiency of a high-parallelism and large-aperture light concentration system and belongs to the field of testing of light concentration photovoltaic systems. The testing device comprises a light source (1), an optical filter (2), a reflector (3), a collimator tube (4), a diaphragm (6), and a detector (8); the light source (1) and the optical filter (2) are positioned in the reflector (3); the light source (1), the optical filter (2), the collimator tube (4), the diaphragm (6), and the detector (8) are arranged coaxially and sequentially; and light emit by the light source (1) passes through the optical filter (2) to be changed into quasi monochromatic light, a divergence angle (5) of the quasi monochromatic light is matched with the divergence angle (5) of sunlight by adjusting the collimator tube (4), and light passing through the diaphragm (6) is converged by a light concentration system (7) and then is received by the detector (8). The device can realize the performance test of the high-parallelism light concentration system with the large aperture of 145mm and has a simple structure and low cost.

Description

The proving installation and the method for high depth of parallelism heavy caliber condenser system light gathering efficiency
Technical field
The invention belongs to the concentration photovoltaic system field tests; The measuring technology that relates to the solar photovoltaic spot light system, the proving installation and the method for particularly a kind of high power concentrator, high-energy transmission efficiency, the high depth of parallelism, bigbore photovoltaic concentration system light gathering efficiency based on non-imaging theory.
Background technology
Sun power is that reserves are maximum, the renewable and clean energy resource that energy distribution is the widest, and it is mainly used is photovoltaic generation, the generation current cost is too high fully not to come into the market.The effective way that reduces the photovoltaic generation cost be adopt cheap optical concentration element with a large amount of convergences of rays to very little concentrator cell, improve light gathering efficiency, reduce battery material, reduce cost.Fresnel condenser volume is little, in light weight, cheap, can make optical system realize microminiaturized, integrated and economization, has obtained widespread use at sun power and lighting field.
The Performance Detection of condenser system is most important, and it can be estimated its function admirable and can be that design and processing provide information feedback according to testing result, guides the improvement direction of design and processing and fabricating.At present, the method for testing of condenser system mainly contains outdoor sunshine test and two kinds of methods of indoor solar simulator test.Though outdoor test sunshine has comparatively desirable spectrum and light distribution, be affected by the external environment, be difficult to condenser system is accurately measured.It is light source that solar simulator is adopted in indoor solar simulator test; 3A level solar simulator has been arranged at present both at home and abroad; Be mainly used in solar cell detection, ecology, aging test etc.; But complex structure, the cost of solar simulator are too high, and its rising angle bigger (being generally 6 °～10 °), are not suitable for the condenser system of angle less (being generally 1 °～2 °).
Summary of the invention
To existing solar simulator in the deficiency aspect the condenser system test; The proving installation and the method that the purpose of this invention is to provide a kind of indoor high depth of parallelism heavy caliber condenser system light gathering efficiency; It is to utilize broad spectrum light source and narrow band pass filter combination as light source; The proving installation that indoor condenser system is built in design replaces existing outdoor sunshine photovoltaic concentration test macro to carry out the optically focused experiment measuring, thereby can remedy the inconvenience and the instability of the outdoor sunshine optically focused experiment measuring that causes owing to weather, environmental change.
To achieve these goals, technical scheme of the present invention is following:
The proving installation of high depth of parallelism heavy caliber condenser system light gathering efficiency; Comprise light source, optical filter, reflection shield, parallel light tube, light hurdle and detector; Light source and optical filter are positioned at reflection shield; Light source, optical filter, parallel light tube, light hurdle and detector are coaxial to be placed successively; The light that light source sends becomes quasi-monochromatic light through behind the optical filter, makes the angle of divergence of this quasi-monochromatic light and the angle of divergence coupling of sunshine through regulating parallel light tube, and the light that sees through the light hurdle is received by detector after condenser system converges.
The method of testing of high depth of parallelism heavy caliber condenser system light gathering efficiency comprises the steps:
The first step: choose broad spectrum light source and a plurality of narrow band pass filter;
Second step: light source is arranged on the front of narrow band pass filter, and the light that light source sends becomes monochromatic light through after the optical filter, makes monochromatic light pass through parallel light tube and harmonizes directly, regulates parallel light tube and makes the angle of divergence of emergent ray and the angle of divergence coupling of sunshine;
The 3rd step: after Jiang Guanglan was placed on parallel light tube, the light hurdle respectively was provided with row's circular hole with vertical direction in the horizontal direction, and a circular hole is only opened in each measurement; Condenser system is placed on back, light hurdle, detector is placed on the focal length place of condenser system, and makes the bottom of condenser system light funnel be close to detector; The image information of the hot spot that converges through condenser system with the detector collection;
The 4th step: utilize detector to measure the luminous power that sees through above-mentioned each circular hole respectively; Keep light source and condenser system position motionless; Move on to condenser system assigned address and focal spot position afterwards to detector; Utilize detector to measure respectively, obtain seeing through the energy of condenser system and the energy that the focal spot position place converges, calculate the local transmitance and the local light gathering efficiency of condenser system again through formula through the energy of condenser system with through the energy that each circular hole converges;
The 5th step:, calculate the transmitance mean value and the light gathering efficiency mean value of condenser system according to local transmitance, local light gathering efficiency and the local measurement area of the 4th condenser system that obtain of step shared proportion in the condenser system entire area;
The 6th step: utilize above-mentioned steps, the light gathering efficiency of other monochromatic source that the Measurement and analysis condenser system gets being made up by light source and narrow band pass filter;
The 7th step: through various monochromatic light shared weight and product of monochromatic light light gathering efficiency mean value in whole solar spectrum; Calculate the weighted mean light gathering efficiency of condenser system, and then accomplish the method for testing of high depth of parallelism heavy caliber condenser system light gathering efficiency the overall spectrum light source.
The present invention adopts the performance of discrete spectrum local measurement method test condenser system; The most of concentration of energy of solar spectrum is in the 350nm-1850nm spectral range; Select broad spectrum light source and narrow band pass filter and produce various monochromatic light; Monochromatic wavelength dispersion adopts discrete monochromatic light to measure the local light gathering efficiency of condenser system in the 350nm-1850nm scope, utilizes the monochromatic av eff of local light gathering efficiency position calculation residing with it.The stack sum of the product of normalization weight and the monochromatic light average light gathering efficiency of various monochromatic light in solar spectrum is the light gathering efficiency of condenser system to sunshine.Place a smooth hurdle before the measured condenser system, respectively there is row's circular hole on the light hurdle with vertical direction in the horizontal direction, and Circularhole diameter and spacing are more little, and the condenser local measurement is accurate more.The local measurement method can be checked the partial operation sum of errors fabricating quality of condenser system.According to test result is that design and processing provide information feedback, so that improve design proposal and processing technology, is aim with the light gathering efficiency that improves condenser system.
Beneficial effect of the present invention is following:
1, the present invention can obtain the test light identical with the sunshine angle of divergence; Its angle of divergence is 0.267 °; This means the performance that can simulate the sunshine test condenser system of the high depth of parallelism indoor, indoor optically focused test has avoided outdoor test because of the influence of external environment to the optically focused test.
2, the bright dipping bore of optically focused proving installation of the present invention is 145mm, can realize that bigbore condenser system and condenser system module test.
3, optically focused proving installation of the present invention adopts condenser system local measurement method; Can realize local measurement to condenser system; The local measurement method need be tested the local light gathering efficiency and the local transmitance of condenser system; Can check the partial operation sum of errors fabricating quality of condenser system, can be that design and processing provide information feedback so that improve light gathering efficiency according to test result.
4, optically focused proving installation of the present invention is simple in structure, cost is low, has broad application prospects in the solar concentrating photovoltaic field.
5, condenser system of the present invention is based on the nonimaging optics principle design; Non-imaging concentration photovoltaic system does not have fixing focus, does not consider aberration, does not require image quality; Only require that light gathering efficiency and optically focused hot spot distribute, this has reduced optically focused proving installation dress school difficulty.
Description of drawings
Fig. 1 is the proving installation structural representation of the high depth of parallelism heavy caliber of the present invention condenser system light gathering efficiency.
Fig. 2 is the schematic diagram that the present invention regulates the angle of divergence of parallel light tube emergent ray.
Fig. 3 is the schematic diagram that the present invention measures geometric concentrating ratio and light gathering efficiency.
Fig. 4 is a smooth hurdle of the present invention structural representation.
Fig. 5 is the method for testing process flow diagram of the high depth of parallelism heavy caliber of the present invention condenser system light gathering efficiency.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is explained further details.
Of Fig. 1; The proving installation of high depth of parallelism heavy caliber condenser system light gathering efficiency of the present invention comprises: light source 1, optical filter 2, reflection shield 3, parallel light tube 4, light hurdle 6 and detector 8; Light source 1 is positioned at reflection shield 3 with optical filter 2; Light source 1, optical filter 2, parallel light tube 4, light hurdle 6 and detector 8 coaxial placements successively; The light that light source 1 sends becomes quasi-monochromatic light through behind the optical filter 2, makes the angle of divergence 5 of this quasi-monochromatic light and the angle of divergence coupling of sunshine through regulating parallel light tube 4, and the light that sees through light hurdle 6 is received by detector 8 after condenser system 7 converges.
The angle of divergence of optically focused proving installation emergent ray of the present invention can reach 0.267 °, is complementary with the angle of divergence of sunshine, and the test bore can reach 145mm.The theoretical foundation of optically focused proving installation of the present invention is non-imaging theory, promptly will make the energy of incident beam farthest be transferred to receiving end, must guarantee the optical extend E of incident beam iOptical extend E with outgoing beam oEquate, that is E i=E oAccording to the marginal ray principle, in design process, only need CONSIDERING EDGE light, this makes design process simplify greatly.
As shown in Figure 3, the formula that calculates the optically focused ratio in the non-imaging is following:
c g＝S 1/S 2 (1)
η＝φ 2/φ 1 (2)
C o = φ 2 / S 2 φ 1 / S 1 = C g * η - - - ( 3 )
Formula (1) is the definition of geometric concentrating ratio: geometric concentrating ratio C gBe defined as the area S of condenser system incident bore 1Area S with the outgoing bore 2Ratio; Formula (2) is the definition of light gathering efficiency: light gathering efficiency η is the luminous power Φ at outgoing bore place 2With the luminous power Φ of incident bore place 1Ratio; Formula (3) is the definition of optical concentration ratio: geometric concentrating ratio C gWith the product of light gathering efficiency η be that optical concentration compares C o
To shown in Figure 5, the method for testing of high depth of parallelism heavy caliber condenser system light gathering efficiency of the present invention is following like Fig. 2:
The first step: choose broad spectrum light source (like xenon lamp or dysprosium lamp) 1 and a plurality of narrow band pass filters 2;
Second step: in light source 1 back narrow band pass filter 2 is set, the halfwidth of optical filter 2 is 5nm, and the light that light source 1 sends is through becoming monochromatic light after the optical filter 2; The angle of divergence θ of light is very big, makes light pass through parallel light tube 4 and harmonizes directly, and it is 0.267 ° that adjusting parallel light tube 4 makes the angle of divergence θ of emergent ray; As shown in Figure 2, can obtain angle of divergence θ according to formula tan θ=b/a, in the formula; B is a spot radius, and a is that light light hole 9 is to the distance of dispersing hot spot 11;
The 3rd goes on foot: after light hurdle 6 is placed on parallel light tube 4; Light hurdle 6 respectively is provided with row's circular hole with vertical direction in the horizontal direction, and Circularhole diameter is 4mm, and pitch of holes is 20mm; Circularhole diameter and pitch of holes are more little, and the Fresnel condenser local measurement of condenser system 7 is accurate more; Only open a circular hole, other circular holes are all closed at every turn, can reduce the measuring error that offset causes like this; Condenser system 7 is arranged on 15mm place at the back, light hurdle 6, and detector 8 is arranged on the focal length place of condenser system 7, is used for measuring the energy of optically focused hot spot, and has made the bottom of the light funnel of secondary condensation and even light action be close to detector 8, in order to avoid luminous energy leaks; Gather the image information of the hot spot that converges through condenser system 7 with detector 8;
The 4th step: utilize detector 8 to measure the luminous power E that sees through above-mentioned each circular hole respectively iKeep light source 1 and condenser system 7 positions motionless; Move on to condenser system 7 10mm position and focal spot position at the back to detector 8, utilize detector 8 to measure respectively, obtain seeing through the energy E of condenser system 7 through the energy of condenser system 7 with through the energy that each circular hole converges oThe energy E that converges with the focal spot position place F, calculate the local transmitance t of condenser system 7 again through formula (4), formula (5) iWith local light gathering efficiency η i:
t i＝E o/E i (4)
Local light gathering efficiency η iFor:
η i＝E F/E i (5)
The 5th step: according to local transmitance t i, local light gathering efficiency η iAnd local measurement area shared proportion in the condenser system entire area, calculate monochromatic light transmitance mean value T and monochromatic light light gathering efficiency mean value η s:
T = Σ i = 1 4 t i * π ( r i + 1 2 + r i 2 ) / S - - - ( 6 )
η s = Σ i = 1 4 η i * π ( r i + 1 2 - r i 2 ) / S - - - ( 7 )
In the formula, t iFor with r I+1For external radius with r iLocal transmitance mean value in the annulus for inside radius, η iFor with r I+1For external radius with r iLocal light gathering efficiency mean value in the annulus for inside radius; S is the projected area of bright dipping bore on light hurdle 6; r iRadius for each annulus;
The 6th step: utilize above-mentioned same method and the light gathering efficiency of other monochromatic source of step Measurement and analysis (light source 1 gets with narrow band pass filter 2 combinations);
The 7th step: according to each monochromatic light shared weight w in whole solar spectrum sThe light gathering efficiency η that obtains overall spectrum with the product of monochromatic efficient mean value η s as shown in the formula:
η = Σ s η s * w s - - - ( 8 )
Calculate according to formula (3) and formula (8), obtain the optical concentration ratio of condenser system 7, and then accomplish the method for testing of high depth of parallelism heavy caliber condenser system light gathering efficiency.
Light gathering efficiency and the contrast of theoretical light gathering efficiency with experiment measuring; Analyze its difference main source; According to the experimental test and analysis result design and the processing and fabricating of condenser system are done further guidance, can improve the photoelectric transformation efficiency of the light gathering efficiency and the solar cell of condenser system.

Claims (7)

1. the proving installation of high depth of parallelism heavy caliber condenser system light gathering efficiency; It is characterized in that; This proving installation comprises light source (1), optical filter (2), reflection shield (3), parallel light tube (4), light hurdle (6) and detector (8); Light source (1) and optical filter (2) are positioned at reflection shield (3); Light source (1), optical filter (2), parallel light tube (4), light hurdle (6) and detector (8) are coaxial to be placed successively; Become quasi-monochromatic light behind the light process optical filter (2) that light source (1) sends, make the angle of divergence (5) of this quasi-monochromatic light and the angle of divergence coupling of sunshine through regulating parallel light tube (4), the light that sees through light hurdle (6) is received by detector (8) after condenser system (7) converges.
2. the proving installation of high depth of parallelism heavy caliber condenser system light gathering efficiency as claimed in claim 1 is characterized in that the angle of divergence of said quasi-monochromatic light (5) is 0.267 °.
3. the proving installation of high depth of parallelism heavy caliber condenser system light gathering efficiency as claimed in claim 1 is characterized in that, respectively there is row's circular hole on said smooth hurdle (6) with vertical direction in the horizontal direction, and Circularhole diameter is 4mm, and its spacing is 20mm.
4. based on the method for testing of the proving installation of each described high depth of parallelism heavy caliber condenser system light gathering efficiency among the claim 1-3, it is characterized in that this method of testing comprises the steps:
The first step: choose broad spectrum light source (1) and a plurality of narrow band pass filter (2);
Second step: light source (1) is arranged on the front of narrow band pass filter (2); The light that light source (1) sends becomes monochromatic light afterwards through optical filter (2); Make monochromatic light pass through parallel light tube (4) and harmonize directly, regulate parallel light tube (4) and make the angle of divergence (5) of emergent ray and the angle of divergence coupling of sunshine;
The 3rd step: after Jiang Guanglan (6) was placed on parallel light tube (4), light hurdle (6) respectively were provided with row's circular hole with vertical direction in the horizontal direction, and a circular hole is only opened in each measurement; Condenser system (7) is placed on light hurdle (6) at the back, detector (8) is placed on the focal length place of condenser system (7), and make the bottom of condenser system (7) light funnel be close to detector (8); Gather the image information of the hot spot that converges through condenser system (7) with detector (8);
The 4th step: utilize detector (8) to measure the luminous power that sees through above-mentioned each circular hole respectively; Keep light source (1) and condenser system (7) position motionless; Move on to condenser system (7) assigned address and focal spot position afterwards to detector (8); Utilize detector (8) to measure respectively through the energy of condenser system (7) and the energy that converges through each circular hole; Obtain seeing through the energy of condenser system (7) and the energy that the focal spot position place converges, calculate the local transmitance and the local light gathering efficiency of condenser system (7) again through formula;
The 5th step:, calculate the transmitance mean value and the light gathering efficiency mean value of condenser system (7) according to local transmitance, local light gathering efficiency and the local measurement area of the 4th condenser system (7) that obtain of step shared proportion in the condenser system entire area;
The 6th step: utilize above-mentioned steps, the light gathering efficiency of other monochromatic source that Measurement and analysis condenser system (7) gets being made up by light source (1) and narrow band pass filter (2);
The 7th step: through various monochromatic light shared weight and product of monochromatic light light gathering efficiency mean value in whole solar spectrum; Calculate the weighted mean light gathering efficiency of condenser system (7), and then accomplish the method for testing of high depth of parallelism heavy caliber condenser system light gathering efficiency the overall spectrum light source.
5. the method for testing of high depth of parallelism heavy caliber condenser system light gathering efficiency as claimed in claim 4 is characterized in that the broad spectrum light source in the said first step (1) is xenon lamp or dysprosium lamp.
6. the method for testing of high depth of parallelism heavy caliber condenser system light gathering efficiency as claimed in claim 4 is characterized in that, the angle of divergence of emergent ray is 0.267 ° in said second step.
7. the method for testing of high depth of parallelism heavy caliber condenser system light gathering efficiency as claimed in claim 4 is characterized in that, moves on to condenser system (7) assigned address afterwards to detector (8) in said the 4th step and is the position apart from condenser system (7) 10mm.
CN 201110095498 2011-04-15 2011-04-15 Device and method for testing light concentration efficiency of high-parallelism and large-aperture light concentration system Expired - Fee Related CN102252826B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201110095498 CN102252826B (en) 2011-04-15 2011-04-15 Device and method for testing light concentration efficiency of high-parallelism and large-aperture light concentration system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201110095498 CN102252826B (en) 2011-04-15 2011-04-15 Device and method for testing light concentration efficiency of high-parallelism and large-aperture light concentration system

Publications (2)

Publication Number Publication Date
CN102252826A CN102252826A (en) 2011-11-23
CN102252826B true CN102252826B (en) 2012-12-12

Family

ID=44980222

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201110095498 Expired - Fee Related CN102252826B (en) 2011-04-15 2011-04-15 Device and method for testing light concentration efficiency of high-parallelism and large-aperture light concentration system

Country Status (1)

Country Link
CN (1) CN102252826B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103064030B (en) * 2012-12-21 2015-05-27 杨军 System and method for battery light converging testing and sample platform for battery light converging testing
CN104635160A (en) * 2013-11-12 2015-05-20 上海太阳能工程技术研究中心有限公司 Light concentrating solar cell test system
FR3013174B1 (en) * 2013-11-14 2015-11-20 Soitec Solar Gmbh DEVICE FOR TESTING A CONCENTRATION PHOTOVOLTAIC MODULE
CN104502863A (en) * 2014-12-16 2015-04-08 天津大学 Pulse xenon lamp spot detection device
CN104964640B (en) * 2015-07-14 2017-10-27 中国华能集团清洁能源技术研究院有限公司 A kind of CPC reflection efficiencies detection means and detection method
CN110260972A (en) * 2019-08-01 2019-09-20 河源鸿祺电子技术有限公司 Illumination testing apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1447615A2 (en) * 2003-02-14 2004-08-18 EADS Astrium GmbH Pulsed sun simulator with improved homogeneity
JP2008298471A (en) * 2007-05-29 2008-12-11 National Institute Of Advanced Industrial & Technology Device for measuring spectral sensitivity characteristics of solar cell
CN101871992A (en) * 2010-06-28 2010-10-27 常州亿晶光电科技有限公司 Alternating current measuring device for quantum efficiency of solar battery and using method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1447615A2 (en) * 2003-02-14 2004-08-18 EADS Astrium GmbH Pulsed sun simulator with improved homogeneity
JP2008298471A (en) * 2007-05-29 2008-12-11 National Institute Of Advanced Industrial & Technology Device for measuring spectral sensitivity characteristics of solar cell
CN101871992A (en) * 2010-06-28 2010-10-27 常州亿晶光电科技有限公司 Alternating current measuring device for quantum efficiency of solar battery and using method thereof

Also Published As

Publication number Publication date
CN102252826A (en) 2011-11-23

Similar Documents

Publication Publication Date Title
CN102252826B (en) Device and method for testing light concentration efficiency of high-parallelism and large-aperture light concentration system
Abdelhamid et al. Novel double-stage high-concentrated solar hybrid photovoltaic/thermal (PV/T) collector with nonimaging optics and GaAs solar cells reflector
Li et al. Study on the radiation flux and temperature distributions of the concentrator–receiver system in a solar dish/Stirling power facility
Abd El-Samie et al. Three-dimensional numerical investigation of a hybrid low concentrated photovoltaic/thermal system
Yan et al. Effects of geometrical parameters of a dish concentrator on the optical performance of a cavity receiver in a solar dish‐Stirling system
Huang et al. Optical performance of an azimuth tracking linear Fresnel solar concentrator
Chong et al. Design and construction of active daylighting system using two-stage non-imaging solar concentrator
Sabahi et al. Design, construction and performance test of an efficient large-scale solar simulator for investigation of solar thermal collectors
US20090261810A1 (en) Simulator system and method for measuring current voltage characteristic curves of a solar concentrator
Hong et al. Performance study of a new type of transmissive concentrating system for solar photovoltaic glass curtain wall
CN106226036B (en) A kind of on-site measurement method of trough type solar heat-collector photo-thermal loss
CN103441178A (en) Compact double reflection-type photovoltaic condenser based on compound eyes
Xuan et al. Performance evaluation for the dielectric asymmetric compound parabolic concentrator with almost unity angular acceptance efficiency
Ratismith et al. A non‐tracking semi‐circular trough solar concentrator
Deng et al. Model verification and photo-thermal conversion assessment of a novel facade embedded compound parabolic concentrator
Asrori et al. The development of Fresnel lens concentrators for solar water heaters: a case study in tropical climates
CN203660987U (en) High-power optically focused photovoltaic battery test system
Sagade et al. Experimental determination of effective concentration ratio for two different designs of concentrating solar cookers
CN205373880U (en) Measurement device for straight injection die that flash of light solar simulator produced plans sunlight exposure
Bengoechea et al. Experimental Set‐Up to Evaluate the Degradation of the Optical Components of a CPV Module
CN102156038A (en) Device and method for detecting light condensation efficiency of condensing lens
Shvarts et al. Improved concentration capabilities of flat-plate Fresnel lenses
Parretta et al. Optical characterization of “PhoCUS” refractive photovoltaic concentrators
CN104702210B (en) A kind of high power condensation photovoltaic battery test system and method for testing
Sanchez Enhancing concentration ratio of solar concentrators

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121212

Termination date: 20140415