CN101793849B - Equipment and method for detecting energy-saving effect of building sun-shading device using imported sunlight - Google Patents
Equipment and method for detecting energy-saving effect of building sun-shading device using imported sunlight Download PDFInfo
- Publication number
- CN101793849B CN101793849B CN2009102442104A CN200910244210A CN101793849B CN 101793849 B CN101793849 B CN 101793849B CN 2009102442104 A CN2009102442104 A CN 2009102442104A CN 200910244210 A CN200910244210 A CN 200910244210A CN 101793849 B CN101793849 B CN 101793849B
- Authority
- CN
- China
- Prior art keywords
- formula
- convex lens
- batch meter
- lens group
- time period
- 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
Images
Abstract
The invention provides equipment and a method for detecting an energy-saving effect of a building sun-shading device using imported sunlight, and relates to the field of the detection of the sun-shading energy-saving effect of building sun-shading products. The equipment consists of three parts: a sunlight imported system, a protected hot box and an environmental box respectively, wherein the sunlight imported system provides a stable and continuous light source for the detection, and by combining the protected hot box method, the defect that the detection can be affected by various outdoor negative factors and the defect that the use of an xenon lamp in the detection is extremely expensive are overcome, and a novel solution for detecting the energy-saving effect of the building sun-shading device is provided.
Description
Technical field:
The present invention relates to detection, be specifically related to a kind of assay method and equipment that utilizes the energy-saving effect of building sun-shading that imports sunshine the architectural shading energy-saving effect.
Background technology:
At present the energy-saving effect assessment with building sun-shading is mainly contained three kinds of methods: the thermal technology calculates, lamp is tested and the artificial light source test.
In thermal technology's computing field, the heat-proof quality of sunshade goods can be used the size reflection of shading coefficient.The shading coefficient of sunshade goods is through the ratio of the total solar radiation heat in sunshade goods, the inlet chamber with the total solar radiation heat that projects its surface.Be grouped into through radiation once more behind sunshade goods opening part entering indoor section and the sunshade goods absorption solar radiant heat, convection current, heat conduction inlet chamber inside by direct through the total solar radiation heat in sunshade goods, the inlet chamber.Computing method are representative with BS EN13363-1, serve as according to calculating with the optical property of each structural sheet of sunshade (blinds)-window system and thermal behavior parameter, but the parameter in the formula relatively lacks at present, and for new product, these parameters all do not have.The measurement of parameter is then complicated more, and measurement standard that can be for reference and testing table are considerably less especially.And existing sunshade goods are not only various informative on the market, and product material is numerous, and mounting means also changes various, are difficult to calculate their shading coefficient in theory, must measure through experiment.
The test philosophy that utilizes lamp or artificial light source to carry out the building sun-shading heat-proof quality all is to utilize the hot case method of protection, designs a hot case of double-deck protection, and skin is a guard box, and internal layer is a batch meter.Ectonexine all keeps a steady temperature through air-conditioning, and the air-conditioning of batch meter is through dynamic electric energy registering instrument record power consumption.The inside and outside wall of batch meter all has temperature sensor and heat flow meter.Its light source gets into the total amount of heat (q in the pulpit over against hot case of protection and protective hot box opening part to the window system through (having/do not have) sunshade goods
2/ q
1) compare mensuration, thus the heat-proof quality of building sun-shading is characterized.
The equipment of the hot case of existing protection and control device are proven technique already, but that the problem that exists in using is the selection difficulty of light source is bigger.Lamp receives ectocine very big, even areal, the different throughout the year dates; The position angle of the middle on the same day different time sun, elevation angle are all changing; Different Changes in weather, the situation of cloud layer also can seriously influence precision of test result and repeatability in the sky, and the strange land testing differentia is bigger; Even in areal or city; Owing to be difficult to guarantee the consistance of the hot case external environment condition of protection, for example humiture, cross-ventilation situation etc. are tested the gained result and are also had than big-difference.And utilize artificial light source mainly to be to use the xenon long-arc lamp the most approaching with solar spectrum, its irradiated area is very limited, generally as artificial accelerated aging; If as the radiation source of standard window,, also need use array xenon lamp group except spectrum and sunshine there is some difference; Xenon lamp costs an arm and a leg, energy consumption is big, the life-span is short; Integrated cost is high, has only Canadian national sun power laboratory (NSTF) to adopt the method in the world, and domestic have only minority scientific research institution and university to utilize single xenon lamp to do some pre-stage tests; But because irradiated area is very far away apart from the aperture area of window, data do not have too big practical significance.
Summary of the invention:
Fundamental purpose of the present invention is to provide a kind of sensing equipment that daylighting and practical and effective, utilization import the energy-saving effect of building sun-shading of sunshine of can realizing stablizing.
The present invention utilizes the sensing equipment of the energy-saving effect of building sun-shading that imports sunshine; Comprise light source, the hot case of protection and environmental chamber; Said light source is the sunshine import system, comprises the optical collector that places the environmental chamber outer end to be used to gather natural light, is installed in the environmental chamber and illuminator that its light outlets is relative with the test hole of protecting hot case and be connected optical collector and the optical cable of illuminator.
In the said sensing equipment; The optical collector of said sunshine import system comprises that transparent shield, convex lens group, convex lens group angle adjuster, control micro computer, output interface and sunlight are from the motion tracking inductor; Wherein convex lens group and sunlight are installed on the convex lens group angle adjuster that is positioned at spherical transparent shield from the motion tracking inductor; Sunlight is connected with control micro computer signal respectively from motion tracking inductor, convex lens group angle adjuster, and the convex lens group is connected through optical fiber with output interface.
In the said sensing equipment, the convex lens group is formed a convex lens group plane by the splicing of a plurality of convex lens, and each convex lens is connected with the optical fiber output interface through optical fiber separately, and passes through the illuminator of the optical cable connection equivalent amount of equivalent amount.
In the said sensing equipment, protect hot case two-layer inside and outside being divided into, internal layer is the batch meter with an opening, wherein installs the batch meter air-conditioning, a temperature thermocouple, a dry bulb thermometer and the hygrometer that are electrically connected with external dynamic electric energy registering instrument; Protect the one side of hot case opening to be the test hole; Outer is to have the guard box with an opening with batch meter, and wherein is provided with guard box air-conditioning and heat flow meter.
In the said sensing equipment, protect hot case to place in the environmental chamber, the optical collector of sunshine import system places outside the environmental chamber, and optical cable passes environmental chamber and stretches into and indoorly be connected with the illuminator that is placed in one; Installing one blower fan, a well heater, dry bulb thermometer and hygrometer in the environmental chamber.
In the said sensing equipment, establish a pyranometer in order to the intensity of illumination sent of test illuminator in the said environmental chamber.
Another purpose of the present invention is to provide a kind of assay method that daylighting and practical and effective, utilization import the energy-saving effect of building sun-shading of sunshine of can realizing stablizing.
The present invention utilizes the detection method of the energy-saving effect of building sun-shading that imports sunshine; Use aforementioned utilization to import the sensing equipment of the energy-saving effect of building sun-shading of sunshine; The solar protection devices test specimen is installed in the test hole of the hot case of protection; Utilize the sunshine import system to form the stabilized light source of the hot case of protection, detecting has/during no solar protection devices through testing the heat flux at hole, through data processing the energy-saving effect of solar protection devices is made evaluation then.
Concrete, said detection method may further comprise the steps:
1), under the no solar protection devices condition, the convex lens group of adjustment optical collector is confirmed and record the radiation intensity of pyranometer counting; Confirm and write down temperature, humidity, the wind speed and direction of environmental chamber air simultaneously, temperature, the humidity of guard box and batch meter air, the temperature of batch meter surfaces externally and internally, hot-fluid, batch meter air-conditioning power consumption;
2), close illuminator, close the same program of blower fan and step 1) record parameters;
3), with the solar protection devices test specimen be installed in the test hole, all the other repeating steps 1), the record parameters;
4) close illuminator, close the same program record of blower fan and step 1) parameters;
5), data processing: with step 3) and 4) parameters of record is calculated and is protected the total amount of heat q in the hot case when solar protection devices is arranged
2, with step 1) and 2) and when calculating no solar protection devices, the parameters of record protects the total amount of heat q in the hot case
1, with q
2/ q
1Heat-proof quality to solar protection devices characterizes.
Here, said step 5) data processing further adopts following algorithm:
I) with Q
1 τ=E
τEER formula (3) calculates τ time period batch meter air conditioner cooling amount Q
1 τ, kwh
In the formula: E
τ-τ time period batch meter air conditioner power consumption, kwh; This numerical value is read by the dynamic electric energy registering instrument;
EER-air conditioner ability loss-rate is seen the air conditioner nameplate
Ii) with Q
2 τ=HF
τS formula (4) calculates τ time period batch meter heat transfer capacity Q
2 τKwh;
In the formula: HF
τ-τ time period batch meter inside surface hot-fluid, w/m
2This numerical value is detected by dull and stereotyped heat flow meter and obtains;
S-batch meter internal surface area (not containing window opening), m
2, this numerical value calculates through meter measuring tank inside dimension and obtains;
Iii) with formula (3) and formula (4) substitution q as a result
τ=(Q
1 τ-Q
2 τ)/A formula (2) obtains the heat q of τ time period through the unit area window
τ, kwh/m
2
In the formula: A-window ara, m
2
Iv) close optical collector ... The time, substitution formula (2) is q as a result
τ, calculate R by formula (5)
τ,
q
τ＝ΔT
τ/R
τ·Δτ/(3600×1000) (5)
In the formula: Δ T
τInterior and the environmental chamber air dry bulb temperature difference of-τ time period batch meter, ℃; This numerical value is read by temperature thermocouple;
R
τThe average entire thermal resistance m of-τ time period window
2℃/w;
Δ τ/(3600 * 1000)-unit conversion coefficient is about to w/m
2Unit conversion is a kwh unit, and Δ τ is interval writing time, s;
V) formula (2) is calculated the q of gained
τ, formula (5) is calculated the R of gained
τIn the substitution formula (1), solve τ time period window comprehensive sunshading coefficient S W
τ
q
τ＝(I
w，τ·SW
τ+ΔT
τ/R
τ)·Δτ/(3600×1000) (1)
In the formula: I
W, τThe total radiation of-τ time period sunshine gets hot, w/m
2This numerical value is taken from pyranometer;
Vi) repeating step i) to step v), the τ time period was set at respectively behind each parameter stability in half an hour, calculated the SW that surveys
τMean value as the comprehensive sunshading coefficient S W of window;
Vii) according to above-mentioned steps i) to step v), utilize step 1) and 2 respectively) the comprehensive sunshading coefficient S W of calculation of parameter window when not having the sunshade test specimen
1, utilize step 3) and 4) the comprehensive sunshading coefficient S W of calculation of parameter window when the sunshade test specimen is arranged
2
Viii) by SD=SW
2/ SW
1Formula (6) calculates the shading coefficient SD of sunshade test specimen and relatively obtains the testing result of sunshade test specimen energy-saving effect with standard figures.
The convex lens group of adjustment optical collector comprises the adjustment of angle and convex lens quantity and convex lens quantity and step 2 in the said step 1)) and 4) middle illuminator quantity equates.
Adopt above technical scheme, sunshine import system GPS location, the convex lens group that the present invention utilized focuses on and promotes sunlight illumination, optical fiber importing, sunlight automatic tracking system.Sunlight is compressed 1.5 ten thousand times, import through optical fiber the sunlight transmission is turned, can reach desired location.Do not receive the restriction of the conditions such as height of the sun, one can both carry out stable daylighting all day.Combine the advantage of above-mentioned two kinds of measurement methods,, can in the laboratory standard environment, test, evaded the influence of outdoor various unfavorable factors simultaneously and utilized the extremely expensive deficiency of xenon lamp such as consistent with sunshine spectrum height.
The present invention adopts above-mentioned way to have following advantage:
1, science of the present invention, reasonable can be simulated the operating position of solar protection devices under the actual condition;
2, the present invention can test under the laboratory standard operating mode, and gained data good reproducibility has the property of comparison;
2, the present invention is workable, can practice thrift a large amount of experimentation costs, shortens the test period, is easy to promote the use of;
3, utilize the inventive method can obtain the energy-saving effect of different types of solar protection devices, thereby for designer's selection provides foundation, and be building energy conservation database and software for calculation exploitation accumulation data.
Description of drawings:
Fig. 1 is an assay device structures sketch of the present invention;
Fig. 2 uses the hot case sketch of protection for the present invention;
Fig. 3 is a sunshine import system optical collector structural representation;
Fig. 4 imports sunshine and natural light spectral comparison figure
Embodiment:
The present invention mainly studies building sun-shading at the assay method and the relevant device that import energy-saving effect under the sunshine.This method utilizes the sunshine import system to form the stabilized light source of the hot case of protection on protection hot case method basis, so detect have/during no solar protection devices through testing the heat flux at hole, through data processing the energy-saving effect of solar protection devices is made evaluation then.
Light source when utilizing the lamp sunshine and making test does not receive the restriction of conditions such as altitude of the sun, and it is emphasis of the present invention that ability one is all stablized daylighting all day, for this reason, in checkout equipment of the present invention, is designed with the sunshine import system.
The checkout equipment that uses among the present invention, referring to shown in Figure 1, this equipment includes sunshine import system 1, the hot case 2 of protection and environmental chamber 3 three parts at least.Wherein, sunshine import system 1 place one can receive natural light position (like environmental chamber 3 roofs), protect hot case 2 to place in the environmental chamber 3.
Wherein, sunshine import system 1 provides light source for test, and it comprises optical collector 11, optical cable 12 and illuminator 13; Optical collector 11 is installed in environmental chamber 3 outer ends; Its structure is seen shown in Figure 3; Comprise and be used for the dustproof transparent shield 111 that covers, convex lens group 112, convex lens group angle adjuster 113, control micro computer 114, output interface 115 and sunlight from motion tracking inductor 116; Wherein convex lens group 112 can be by a plurality of; For example a convex lens group plane is formed in 36 high-performance convex lens splicings, is installed on the convex lens group angle adjuster 113 that is positioned at spherical transparent shield 111, and convex lens group angle adjuster 113 can be adjusted the angle of this convex lens group 112; The focussing force that utilizes convex lens group 112 each convex lens focuses on the back with the sunlight that collects and accurately sends into the optical fiber output interface 115 that can be positioned on the lens focus through optical fiber 117 separately, and convex lens group 112 adjustable angle joint is stable to guarantee irradiation intensity; Sunlight is installed on the convex lens group angle adjuster 113 from motion tracking inductor 116 too; And with control micro computer 114 link to each other; Respond to the angle of sunshine in real time and send to and control micro computer 114, thereby the angle of sending instruction adjustment convex lens group to convex lens group angle adjuster 113 through control micro computer 114 is with assurance convex lens group normal direction angle reception sunlight.
But protect operating mode in hot case 2 simulating chambers; Referring to illustrated in figures 1 and 2; Two-layer inside and outside it is divided into, internal layer by thicker tank wall surround one have an opening batch meter 21, batch meter 21 can make in the batch meter 21 temperature control at a certain design temperature in 20～30 ℃ of scopes through batch meter air-conditioning 211; Precision ± 1 ℃, relative humidity is less than 70%; Skin is a guard box 22, also is made up of thicker tank wall, batch meter 21 is encased, but need reserve the opening of batch meter; Guard box 22 also can make in the guard box 22 temperature control at a certain design temperature in 20～30 ℃ of scopes through guard box air-conditioning 221, precision ± 1 ℃; Among Fig. 2,222 is temperature thermocouple, and 223 is hygrometer, all stretches in the guard box 22 casees 0.1 ℃ of precision; 212 is dry bulb thermometer, stretches in the batch meter 21 0.1 ℃ of precision; 213 is hygrometer, stretches into and measures in 21 the casees, precision 0.1%; 214 is dull and stereotyped heat flow meter, precision 0.1W/m
2, be affixed on batch meter 21 inside surfaces; Protect the one side of hot case 2 openings to be test hole 23; Size is preferably 1.5m * 1.5m; Test can be inlayed the thick dull and stereotyped white glass (detachably) 24 of 6mm on the hole 23; (different solar protection devices such as blinds or roller shutter etc. need to press product description or actual operating position is installed to protect hot case 2 test holes 23 installing solar protection devices test specimens 25.If test specimen 25 is the internal sunshade device then is installed in control indoor flat plate white glass 24 inboards; The external sunshade device is installed in test hole 23 outer rims of the hot case 2 of protection, referring to Fig. 2; If test whole window system (like built-in sunshade double glazing, Low-E glass etc.), install after then need pulling down mounted 6mm standard white glass); Other establishes a pyranometer 26, be installed in protection hot case 2 test holes 23 solar protection devices test specimen 25 outermost end and with illuminator 13 over against, in order to the intensity of illumination that test illuminator 13 sends, the use of pyranometer 26 should meet the GB/T19565 regulation; Batch meter air-conditioning 211 connects dynamic electric energy registering instrument 27, with record air-conditioning power consumption.
Environmental chamber outdoor operating mode in 3 simulation summer, indoor installing one blower fan 31, blower fan 31 can produce the adjustable wind speed of 1～10m/s, vertically blows to solar protection devices test specimen 25; At 35～40 ℃ of a certain design temperatures of scope, ℃ control by precision ± 2 through well heater 32 for the environment indoor temperature, and the relative humidity of environmental chamber 3 is less than 70%; 33 for stretching into the dry bulb thermometer in the environmental chamber 3,0.1 ℃ of precision; 34 is the hygrometer that stretches in the environmental chamber 3, precision 0.1%,
By above combination, form the testing apparatus of using among the present invention.
Utilize this testing apparatus to carry out the mensuration of energy-saving effect of building sun-shading, may further comprise the steps:
1), the convex lens group 112 of adjustment in the optical collector 11, the radiation intensity that window opening mouth 23 wherein to be detected is received is 1000w/m
2± 10% (through pyranometer 26 countings); Each item controlled variable of hot case 2 of adjustment protection and environmental chamber 3 reaches requirement.Dynamically recording does not have under the sunshade goods condition sunshine that (refer to test 23 places, hole blank glass 24 has been installed but test specimen is not installed) import through the hot-fluid (through dull and stereotyped heat flow meter 214) of illuminator 13 at the temperature of the temperature (with thermometer 33), humidity (with hygrometer 34), guard box 22 and batch meter 21 air that detect window opening radiation intensity on glass (this moment, pyranometer 26 was contained in the blank glass outer side), environmental chamber 3 air, humidity (usefulness is thermometer and the hygrometer in the case separately), batch meter 21 inside surfaces, batch meter air-conditioning 221 power consumption (with dynamic electric energy registering instrument 27);
2), close illuminator 13; Close blower fan 31; Other each item controlled variable of hot case 2 of adjustment protection and environmental chamber 3 reach temperature, humidity, guard box, the temperature of batch meter air, humidity, the hot-fluid of batch meter inside surface, the batch meter air-conditioning power consumption of requirement and the same program dynamically recording of step 1) environmental chamber air.
3), with sunshade test specimen 25 by product description or actual operating position be installed in the test hole, repeating step 1), the record parameters;
4) close illuminator 13; Close blower fan 31; Other each item controlled variable of hot case 2 of adjustment protection and environmental chamber reach temperature, humidity, guard box, the temperature of batch meter air, humidity, the hot-fluid of batch meter inside surface, the batch meter air-conditioning power consumption of requirement and the same program dynamically recording of step 1) environmental chamber air;
5), data processing:
The comprehensive sunshading coefficient S W of exterior window is defined as: under the normal incidence condition, the sun through printing opacity system (comprising light transmissive material and sunshade measure) gets heating rate, gets the ratio of heating rate with the identical sun under the identical incident condition.
The τ time period enters into the heat q of batch meter
τForm by two parts; Be that to get hot and detection window hole 23 (be the dull and stereotyped white glass 24 of 6mm, if test whole window system such as built-in sunshade double glazing, Low-E glass etc. for the radiation of sunshine; The heat conduction that is through whole test specimen gets hot) heat conduction get hotly, specifically see formula (1).Below " window " described in the formula symbol description all referred to the detection window hole.
q
τ＝(I
w，τ·SW
τ+ΔT
τ/R
τ)·Δτ/(3600×1000) (1)
In the formula:
q
τ---the Δ τ time period is through the average heat of unit area window, kwh/m
2
I
W, τ---the average radiation of the total spectrum of the Δ τ time period sun gets hot, w/m
2
SW
τ---Δ τ time period window comprehensive sunshading coefficient;
Δ T
τ---the interior and environmental chamber air dry bulb mean temperature difference (MTD) of τ time period batch meter, ℃; This numerical value draws by averaging to subtract each other after temperature element is read separately again.
R
τ---the average entire thermal resistance m of τ time period window
2℃/w;
Δ τ/(3600 * 1000)---unit conversion coefficient is about to w/m
2Unit conversion is a kwh unit, and Δ τ is interval writing time, s.
In the formula (1):
q
τValue can calculate by formula (2):
q
τ＝(Q
1τ-Q
2τ)/A (2)
In the formula:
Q
1 τ---τ time period batch meter air conditioner 211 cooling amounts, kwh;
Q
2 τ---τ time period batch meter heat transfer capacity, kwh;
A---window ara, m
2
Q wherein
1 τCalculate by formula (3):
Q
1τ＝E
τ·EER (3)
In the formula:
E
τ---τ time period batch meter air conditioner 211 power consumption, kwh; This numerical value is read by dynamic electric energy registering instrument 27.
EER---air conditioner ability loss-rate is seen the air conditioner nameplate.
Q
2 τCalculate by formula (4):
Q
2τ＝HF
τ·S·Δτ/(3600×1000) (4)
In the formula:
HF
τ---τ time period batch meter inside surface mean heat flux, w/m
2This numerical value is detected by dull and stereotyped heat flow meter 214 and obtains.
S---batch meter internal surface area (not containing window opening), m
2, this numerical value calculates through meter measuring tank inside dimension and obtains.
With formula (3) and formula (4) substitution formula as a result (2), obtain q
τ
When closing light source, solar radiation gets hot I
W, τBe 0, formula (1) is reduced to formula (5):
q
τ＝ΔT
τ/R
τ·Δτ/(3600×1000) (5)
The q of gained is calculated in substitution this moment by formula (2)
τ, solve R
τ, in generation, return in the formula (1), separates exit window SW
τCalculate the SW that surveys
τMean value as the comprehensive sunshading coefficient S W of window.
According to above-mentioned steps, the comprehensive sunshading coefficient S W of window when no sunshade test specimen is calculated in test respectively
1The comprehensive sunshading coefficient S W of window when the sunshade test specimen is arranged
2
On the other hand, the comprehensive sunshading coefficient S W of window also can be expressed as the shading coefficient (SC) of glass pane itself and the product of the shading coefficient (SD) of the sunshade test specimen of window.Measured SW when getting no sunshade test specimen
1Value is SC, and then the shading coefficient SD of sunshade test specimen is calculated by formula (6).
SD＝SW/SC＝SW
2/SW
1 (6)
In the formula:
SD---the shading coefficient of sunshade test specimen;
The comprehensive sunshading coefficient of SW---window;
The shading coefficient of SC---glass pane itself;
SW
1---the comprehensive sunshading coefficient of window during no sunshade test specimen; This numerical value is by calculating with following formula (1);
SW
2---the comprehensive sunshading coefficient of window when the sunshade test specimen is arranged; This numerical value is by calculating with following formula (1).
The shading coefficient SD of the sunshade test specimen that through type (6) calculates has characterized the energy-saving effect of building sun-shading to be measured.Table 1 is seen in the classification of SD value:
The classification of table 1SD value
| Grade | 1 (very poor) | 2 (poor) | 3 (in) | 4 (good) | 5 (fine) |
| SD | SD≥0.57 | 0.57＞SD≥0.40 | 0.40＞SD≥0.17 | 0.17＞SD≥0.11 | 0.11＞SD |
Embodiment: the externally effect of heat insulation evaluation of solar protection devices aluminum alloy beancurd leaf curtain
Sample: 1500mm * 1500mm aluminium alloy external sunshade blind
Test dimension of opening: 1500mm * 1500mm
Batch meter internal surface area: 20m
2
Air-conditioning Energy Efficiency Ratio: 2.56
1) open illuminator 13, open blower fan 31 and air-conditioning 211,221, well heater 32, after extremely stablizing according to each parameter of step 1) adjusting, record data are seen table 2.
Table 2 step 1) data recording
2) close illuminator 13, blower fan 31 according to step 2) regulate each parameter after stable, record data are seen table 3.
Table 3 step 2) data recording
3) outside the test hole, load onto aluminum alloy beancurd leaf curtain (sample 25) according to producer's mounting list, blade is the semi-closed state of 45.Open illuminator 13, blower fan 31, after extremely stablizing according to each parameter of step 3 adjusting, record data are seen table 4.
Table 4 step 3) data recording
4) close illuminator 13, blower fan 31, after extremely stablizing according to each parameter of step 4) adjusting, record data are seen table 5.
Table 5 step 4) data recording
5) data processing:
The data of table 2, table 3 are brought into formula (1) in formula (5), measured SW when solving no sunshade test specimen
1Value is 0.671,
With table 4, the data of table 5 are brought into formula (1) in the formula (5), measured SW when solving the sunshade test specimen
2Value is 0.088,
By formula (6), the SD value that calculates this sample is 0.13 with the The above results substitution,
According to table 1, the energy-saving effect of this sample belongs to 4 grades (good).
Claims (8)
1. sensing equipment that utilizes the energy-saving effect of building sun-shading that imports sunshine; Comprise light source, the hot case of protection and environmental chamber; It is characterized in that; Said light source is the sunshine import system, comprises the optical collector that places the environmental chamber outer end to be used to gather natural light, is installed in the environmental chamber and illuminator that its light outlets is relative with the test hole of protecting hot case and be connected optical collector and the optical cable of illuminator;
The optical collector of said sunshine import system comprises that transparent shield, convex lens group, convex lens group angle adjuster, control micro computer, output interface and sunlight are from the motion tracking inductor; Wherein convex lens group and sunlight are installed on the convex lens group angle adjuster that is positioned at spherical transparent shield from the motion tracking inductor; Sunlight is connected with control micro computer signal respectively from motion tracking inductor, convex lens group angle adjuster, and the convex lens group is connected through optical fiber with output interface;
Said convex lens group is formed a convex lens group plane by a plurality of convex lens splicings; Each convex lens is connected with separately optical fiber output interface respectively through optical fiber separately; The optical fiber output interface connects each illuminator through each optical cable separately, and wherein the quantity of convex lens, optical fiber output interface, optical cable and illuminator is identical.
2. according to the said sensing equipment of claim 1; It is characterized in that; Protect hot case two-layer inside and outside being divided into, internal layer is the batch meter with an opening, wherein installs the batch meter air-conditioning, a temperature thermocouple, a dry bulb thermometer and the hygrometer that are electrically connected with external dynamic electric energy registering instrument; Protect the one side of hot case opening to be the test hole; Outer is to have the guard box with an opening with batch meter, and wherein is provided with guard box air-conditioning and heat flow meter.
3. according to claim 1 or 2 said sensing equipments, it is characterized in that protect hot case to place in the environmental chamber, the optical collector of sunshine import system places outside the environmental chamber, optical cable passes environmental chamber and stretches into and indoorly be connected with the illuminator that is placed in one; Installing one blower fan, a well heater, dry bulb thermometer and hygrometer in the environmental chamber.
4. according to the said sensing equipment of claim 3, it is characterized in that, establish a pyranometer in order to the intensity of illumination sent of test illuminator in the said environmental chamber.
5. detection method of utilizing the energy-saving effect of building sun-shading that imports sunshine; Use the arbitrary said utilization of claim 1 to 4 to import the sensing equipment of the energy-saving effect of building sun-shading of sunshine; Solar protection devices is installed in the test hole of the hot case of protection; Utilize the sunshine import system to form the stabilized light source of the hot case of protection, detect the heat flux of passing through the test hole when solar protection devices and no solar protection devices are arranged, through data processing the energy-saving effect of solar protection devices is made evaluation then.
6. according to the said detection method of claim 5, it is characterized in that, may further comprise the steps:
1), under the no solar protection devices condition, the convex lens group of adjustment optical collector is confirmed and record the radiation intensity of pyranometer counting; Confirm and write down temperature, humidity, the wind speed and direction of environmental chamber air simultaneously, temperature, the humidity of guard box and batch meter air, the temperature of batch meter surfaces externally and internally, hot-fluid, batch meter air-conditioning power consumption;
2), close illuminator, close the same program of blower fan and step 1) record parameters;
3), with solar protection devices be installed in the test hole, all the other repeating steps 1), the record parameters;
4) close illuminator, close the same program record of blower fan and step 1) parameters;
5), data processing: with step 3) and 4) parameters of record is calculated and is protected the total amount of heat q in the hot case when solar protection devices is arranged
2, with step 1) and 2) and when calculating no solar protection devices, the parameters of record protects the total amount of heat q in the hot case
1, with q
2/ q
1Heat-proof quality to solar protection devices characterizes.
7. according to the said detection method of claim 6, it is characterized in that said step 5) data processing further adopts following algorithm:
I) with Q
1 τ=E
τEER formula (3) calculates τ time period batch meter air conditioner cooling amount Q
1 τ, kwh
In the formula: E
τBe τ time period batch meter air conditioner power consumption, kwh; This numerical value is read by the dynamic electric energy registering instrument;
EER is an air conditioner ability loss-rate, sees the air conditioner nameplate
Ii) with Q
2 τ=HF
τS formula (4) calculates τ time period batch meter heat transfer capacity Q
2 τKwh;
In the formula: HF
τBe τ time period batch meter inside surface hot-fluid, w/m
2This numerical value is detected by dull and stereotyped heat flow meter and obtains;
S is the internal surface area that batch meter does not contain window opening, m
2, this numerical value calculates through meter measuring tank inside dimension and obtains;
Iii) with formula (3) and formula (4) substitution q as a result
τ=(Q
1 τ-Q
2 τ)/A formula (2) obtains the heat q of τ time period through the unit area window
τ, kwh/m
2
In the formula: A is a window ara, m
2
When iv) closing optical collector, substitution formula (2) is q as a result
τ, calculate R by formula (5)
τ,
q
τ＝ΔT
τ/R
τ·Δτ/(3600×1000) (5)
In the formula: Δ T
τFor in the τ time period batch meter with the environmental chamber air dry bulb temperature difference, ℃; This numerical value is read by temperature thermocouple;
R
τBe the average entire thermal resistance m of τ time period window
2℃/w;
Δ τ/(3600 * 1000) are the unit conversion coefficient, are about to w/m
2Unit conversion is a kwh unit, and Δ τ is interval writing time, s;
V) formula (2) is calculated the q of gained
τ, formula (5) is calculated the R of gained
τIn the substitution formula (1), solve τ time period window comprehensive sunshading coefficient S W
τ
q
τ＝(I
w，τ·SW
τ+ΔT
τ/R
τ)·Δτ/(3600×1000) (1)
In the formula: I
W, τFor the total radiation of τ time period sunshine get hot, w/m
2This numerical value is taken from pyranometer;
Vi) repeating step i) to step v), the τ time period was set at respectively behind each parameter stability in half an hour, calculated the SW that surveys
τMean value as the comprehensive sunshading coefficient S W of window;
Vii) according to above-mentioned steps i) to step v), utilize step 1) and 2 respectively) the comprehensive sunshading coefficient S W of calculation of parameter window when not having the sunshade test specimen
1, utilize step 3) and 4) the comprehensive sunshading coefficient S W of calculation of parameter window when the sunshade test specimen is arranged
2
Viii) by SD=SW
2/ SW
1Formula (6) calculates the shading coefficient SD of sunshade test specimen and relatively obtains the testing result of sunshade test specimen energy-saving effect with standard figures.
8. according to claim 6 or 7 said detection methods, it is characterized in that the convex lens group of adjustment optical collector comprises the adjustment of angle and convex lens quantity and convex lens quantity and step 2 in the step 1)) and 4) in the illuminator quantity of closing equate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102442104A CN101793849B (en) | 2009-12-29 | 2009-12-29 | Equipment and method for detecting energy-saving effect of building sun-shading device using imported sunlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102442104A CN101793849B (en) | 2009-12-29 | 2009-12-29 | Equipment and method for detecting energy-saving effect of building sun-shading device using imported sunlight |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101793849A CN101793849A (en) | 2010-08-04 |
| CN101793849B true CN101793849B (en) | 2012-03-21 |
Family
ID=42586656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102442104A Active CN101793849B (en) | 2009-12-29 | 2009-12-29 | Equipment and method for detecting energy-saving effect of building sun-shading device using imported sunlight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101793849B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128854B (en) * | 2010-12-02 | 2012-11-21 | 中国建材检验认证集团股份有限公司 | Method and device for testing thermal property of heat reflection roof |
| CN102162801A (en) * | 2010-12-28 | 2011-08-24 | 中国建筑材料检验认证中心有限公司天津分公司 | Method and equipment for testing shading performance of coated glass, filmed glass or film-coating glass |
| CN102169087B (en) * | 2011-06-02 | 2012-07-11 | 北京中建建筑科学研究院有限公司 | Textile tester |
| CN103383300B (en) * | 2012-05-03 | 2016-01-27 | 上海建科检验有限公司 | A kind of thermodynamic test platform detecting outer door and window system insulation shading performance |
| CN102914390A (en) * | 2012-11-08 | 2013-02-06 | 哈尔滨工业大学 | Cold quantity distribution system and method based on flow temperature difference proportion |
| CN103196121B (en) * | 2013-03-26 | 2014-08-06 | 浙江省建筑科学设计研究院有限公司 | Low-energy simulative light source system of thermal performance detection device for building sun-shading |
| CN104165901A (en) * | 2014-08-27 | 2014-11-26 | 中国建筑科学研究院 | Building door and window shading coefficient testing arrangement |
| CN104964999A (en) * | 2015-07-08 | 2015-10-07 | 浙江大学 | Device and method for testing equivalent thermal resistance of reflective thermal insulation coating material |
| CN106841289B (en) * | 2017-03-30 | 2023-06-20 | 广州市建筑材料工业研究所有限公司 | Device and method for detecting heat insulation performance of sun-shading product by utilizing sunlight |
| CN107965873B (en) * | 2017-12-12 | 2018-12-28 | 傅雯瑛 | A kind of light transmission building enclosure solar heat gain coefficient detection device and its control method |
| CN108132278B (en) * | 2018-01-09 | 2020-01-10 | 龙元明筑科技有限责任公司 | Building external window energy-saving performance detection device and control method thereof |
| CN108318523B (en) * | 2018-02-09 | 2020-01-24 | 重庆市永安工程建设监理有限公司 | Device for detecting solar heat gain coefficient of building external window by utilizing sunlight |
| KR102156530B1 (en) * | 2018-10-31 | 2020-09-16 | (재)한국건설생활환경시험연구원 | Testing device with wall greening for testing thermal insulation thereof |
| CN110705119B (en) * | 2019-10-12 | 2022-12-09 | 上海朗绿建筑科技股份有限公司 | Energy-saving analysis method and system for sun-shading device and storage medium |
| CN117146906B (en) * | 2023-11-01 | 2024-02-09 | 华南理工大学 | Comprehensive performance detection system and method for building enclosure structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1452661A1 (en) * | 2003-02-27 | 2004-09-01 | Essmann GmbH & Co. KG | Shading system |
| CN201034954Y (en) * | 2007-04-27 | 2008-03-12 | 沈阳合兴检测设备有限公司 | Building exterior window heat preserving performance testing apparatus |
| CN201266186Y (en) * | 2008-09-04 | 2009-07-01 | 重庆大学 | Detection device for sun-shading system |
-
2009
- 2009-12-29 CN CN2009102442104A patent/CN101793849B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1452661A1 (en) * | 2003-02-27 | 2004-09-01 | Essmann GmbH & Co. KG | Shading system |
| CN201034954Y (en) * | 2007-04-27 | 2008-03-12 | 沈阳合兴检测设备有限公司 | Building exterior window heat preserving performance testing apparatus |
| CN201266186Y (en) * | 2008-09-04 | 2009-07-01 | 重庆大学 | Detection device for sun-shading system |
Non-Patent Citations (3)
| Title |
|---|
| JP特开2007-24727A 2007.02.01 |
| 张磊等.窗总热阻和遮阳系数的动态测试.《能源工程》.2003,(第6期),57-60. * |
| 戚淑纯等.太阳光导入器综述.《太阳能》.2007,(第2期),32-36. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101793849A (en) | 2010-08-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101793849B (en) | Equipment and method for detecting energy-saving effect of building sun-shading device using imported sunlight | |
| Grubišić-Čabo et al. | Experimental investigation of the passive cooled free-standing photovoltaic panel with fixed aluminum fins on the backside surface | |
| Jankovic et al. | Impact of double skin facade constructional features on heat transfer and fluid dynamic behaviour | |
| Chen et al. | Solar heat gain coefficient measurement of semi-transparent photovoltaic modules with indoor calorimetric hot box and solar simulator | |
| Peng et al. | Comparative study of the thermal and power performances of a semi-transparent photovoltaic façade under different ventilation modes | |
| Corgnati et al. | Experimental assessment of the performance of an active transparent façade during actual operating conditions | |
| Zhang et al. | Numerical and experimental study on the thermal performance improvement of a triple glazed window by utilizing low-grade exhaust air | |
| Kandilli et al. | Performance analysis of a concentrated solar energy for lighting-power generation combined system based on spectral beam splitting | |
| CN103115749B (en) | Dynamic testing device and dynamic testing method for thermal performances of groove-type solar collector | |
| Yu et al. | A study on use of miniature dielectric compound parabolic concentrator (dCPC) for daylighting control application | |
| Goossens et al. | Effect of wind on temperature patterns, electrical characteristics, and performance of building-integrated and building-applied inclined photovoltaic modules | |
| Nicoletti et al. | Analysis of the energy and visual performance of a building with photochromic windows for a location in southern Italy | |
| Leone et al. | Use of finite element models for estimating thermal performance of façade-integrated solar thermal collectors | |
| Fanney et al. | Building integrated photovoltaic test facility | |
| Chen et al. | Performance analysis of radiation and electricity yield in a photovoltaic panel integrated greenhouse using the radiation and thermal models | |
| Moghadasi et al. | A comprehensive experimental investigation and dynamic energy modeling of a highly efficient solar air heater with octagonal geometry | |
| CN117146906B (en) | Comprehensive performance detection system and method for building enclosure structure | |
| CN104165901A (en) | Building door and window shading coefficient testing arrangement | |
| Moghaddam et al. | Review of the experimental methods for evaluation of windows’ solar heat gain coefficient: From standardized tests to new possibilities | |
| Hu et al. | Global SunFarm data acquisition network, energy CRADLE, and time series analysis | |
| CN203163966U (en) | Shading coefficient detection system of simulated solar light source detection shading device | |
| Paya-Marin | Solar Air Collectors for Cost-Effective Energy-Efficient Retrofitting | |
| Kalyanova et al. | Experimental Set-up and Full-scale measurements in the ‘Cube' | |
| FIUK et al. | An experimental study on the thermal efficiency of a passive solar air collector | |
| Kragh | Microclimatic conditions at the external surface of building envelopes |
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 | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA BUILDING MATERIAL TEST + CERTIFICATION GROUP Free format text: FORMER NAME: CHINA BUILDING MATERIAL TEST + CERTIFICATION CO., LTD. Owner name: CHINA BUILDING MATERIAL TEST + CERTIFICATION CENTE Free format text: FORMER NAME: CHINA BUILDING MATERIAL TEST + CONFISCATION CENTER Owner name: CHINA BUILDING MATERIAL TEST + CERTIFICATION CO., Free format text: FORMER NAME: CHINA BUILDING MATERIAL TEST + CERTIFICATION CENTER CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 100024 Beijing city Chaoyang District Guanzhuang 1 East South Patentee after: CHINA BUILDING MATERIAL TEST & CERTIFICATION GROUP Co.,Ltd. Address before: 100024 Beijing city Chaoyang District Guanzhuang 1 East South Patentee before: China building materials inspection and certification Limited by Share Ltd. Address after: 100024 Beijing city Chaoyang District Guanzhuang 1 East South Patentee after: China building materials inspection and certification Limited by Share Ltd. Address before: 100024 Beijing city Chaoyang District Guanzhuang 1 East South Patentee before: China Building Material Test & Certification Center Co.,Ltd. Address after: 100024 Beijing city Chaoyang District Guanzhuang 1 East South Patentee after: China Building Material Test & Certification Center Co.,Ltd. Address before: 100024 Beijing city Chaoyang District Guanzhuang 1 East South Patentee before: China Building Material Test & Certification Center |