CN104132435A - Air conditioner refrigeration quantity measuring method and system - Google Patents
Air conditioner refrigeration quantity measuring method and system Download PDFInfo
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- CN104132435A CN104132435A CN201410406569.8A CN201410406569A CN104132435A CN 104132435 A CN104132435 A CN 104132435A CN 201410406569 A CN201410406569 A CN 201410406569A CN 104132435 A CN104132435 A CN 104132435A
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- indoor
- air conditioner
- refrigerating capacity
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000005057 refrigeration Methods 0.000 title description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 238000002474 experimental method Methods 0.000 claims description 8
- 230000005494 condensation Effects 0.000 claims description 6
- 238000009833 condensation Methods 0.000 claims description 6
- 239000008400 supply water Substances 0.000 claims description 4
- 238000012360 testing method Methods 0.000 abstract description 25
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The application discloses a method and a system for measuring the refrigerating capacity of an air conditioner, which comprise the following steps: the air conditioner testing system comprises a first outdoor unit, a first indoor unit, an indoor side working condition machine, a first temperature and humidity regulator, a second outdoor unit, a second indoor unit, an outdoor side working condition machine and a second temperature and humidity regulator, and is characterized in that the outdoor unit of the air conditioner to be tested is arranged in a suite to be tested, so that the problem of arrangement of the air conditioner to be tested in the prior art is solved, independent testing of two sets of air conditioners to be tested can be simultaneously realized under the condition that the original testing space is not changed, namely, two thermal balance tests are completed on the basis of a thermal balance table, and the testing efficiency is improved.
Description
Technical field
The present invention relates to Air conditioner refrigerating capacity field of measuring technique, in particular, relate to a kind of Air conditioner refrigerating capacity measuring method and system.
Background technology
At present, Air conditioner refrigerating capacity generally adopts room type calorimeter method to test.In the time that reality is tested, off-premises station is arranged on chamber in outside, and indoor set is arranged on chamber in indoor, and therefore, the refrigerating capacity that in outside, measure chamber is the refrigerating capacity of off-premises station, and the refrigerating capacity that in indoor, measure chamber is the refrigerating capacity of indoor set.The refrigerating capacity of the indoor set that Air conditioner refrigerating capacity is only measured with chamber in indoor is as the criterion, and the refrigerating capacity of the off-premises station that in outside, measure chamber only plays an effect that checking is auxiliary.
Because current this measuring method can only be tested a set of air-conditioner to be measured at every turn, therefore testing efficiency is low.
Summary of the invention
In view of this, the invention provides a kind of Air conditioner refrigerating capacity measuring method and system, to solve the problem that traditional measurement method testing efficiency is low.
A kind of Air conditioner refrigerating capacity measuring system, comprising:
Be arranged on the first off-premises station of the first air-conditioner to be measured in the inner room of indoor;
Be connected and be arranged on the first indoor set of described first air-conditioner to be measured of chamber in indoor with described the first off-premises station;
Be arranged on Nei Shi indoor, described indoor operating mode machine;
Be arranged on the first thermo hydrograph regulator of chamber in described indoor;
Be arranged on the second off-premises station of the second air-conditioner to be measured in the inner room of outside;
Be connected and be arranged on the second indoor set of described second air-conditioner to be measured of chamber in outside with described the second off-premises station;
Be arranged on Nei Shi outside, described outside operating mode machine;
And be arranged on the second thermo hydrograph regulator of chamber in described outside.
Preferably, described the first off-premises station is connected by the first indoor and outdoor connecting pipe line with described the first indoor set.
Preferably, described the second off-premises station is connected by the second indoor and outdoor connecting pipe line with described the second indoor set.
Preferably, the thermo hydrograph regulator that described the first thermo hydrograph regulator and described the second thermo hydrograph regulator are all structure as a whole.
Preferably, described the first thermo hydrograph regulator and described the second thermo hydrograph regulator are the thermo hydrograph regulator of Split type structure.
A kind of Air conditioner refrigerating capacity measuring method, is applied to Air conditioner refrigerating capacity measuring system described above, comprising:
Obtain the total power input ∑ P of indoor operating mode machine
r, chamber humidification is used in indoor water or the enthalpy h of steam
w1, the enthalpy h of chamber condensed water of air conditioner in indoor
w2, condensing capacity W in the first air-conditioner to be measured
r, passed to the leaking heat φ of chamber in indoor by midfeather by chamber in outside
1pand obtain except middle walls, pass to the leaking heat φ of chamber in indoor by wall, floor and ceiling from surrounding environment
1r;
According to formula φ
tci=∑ P
r+ (h
w1-h
w2) W
r+ φ
1p+ φ
1rcalculate described the first Air conditioner refrigerating capacity φ to be measured
tci;
Obtain the total power input ∑ P of outside operating mode machine
o, obtain water that in outside, chamber humidification is used or the enthalpy h of steam
w3, obtain the enthalpy h of chamber condensed water of air conditioner in outside
w4, obtain the condensing capacity W in the second air-conditioner to be measured
o, obtain the leaking heat φ that is passed to chamber in indoor by chamber in outside by midfeather
1p, obtain except middle walls, pass to the leaking heat φ of chamber in outside by wall, floor and ceiling from surrounding environment
1oo;
According to formula φ
tco=∑ P
o+ (h
w3-h
w4) W
r-φ
1p+ φ
1oocalculate described the second Air conditioner refrigerating capacity φ to be measured
tco.
Preferably, if do not supply water to described the second thermo hydrograph regulator in experimentation, enthalpy h
w3value be the enthalpy under water temperature in the second thermo hydrograph regulator described in reprocessor group.
Preferably, if can not obtain the enthalpy h of condensed water of air conditioner
w4, enthalpy h
w4value be the wet-bulb temperature of condensation temperature or described the second air-conditioner to be measured air-supply.
Preferably, the described leaking heat φ that is passed to chamber in indoor by chamber in outside by midfeather
1pdetermine or determined by balanced type calorimeter by calibration experiment.
Preferably, the described leaking heat φ that passes to chamber in outside from surrounding environment by wall, floor and ceiling
1oodetermine or determined by balanced type calorimeter by calibration experiment.
Can find out from above-mentioned technical scheme, the invention provides a kind of Air conditioner refrigerating capacity measuring method and system, by being arranged on to inner room, tests the off-premises station of air-conditioner to be measured, solve the Layout Problem of air-conditioner to be measured in prior art, realize in the situation that original test space is constant, can carry out independent test to two covers air-conditioner to be measured simultaneously, realize and on the basis of a thermal balance platform, completed two thermal balance tests, thereby improved testing efficiency.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, other accompanying drawing can also be provided according to the accompanying drawing providing.
Fig. 1 is the structural representation of the disclosed a kind of Air conditioner refrigerating capacity measuring system of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the invention discloses a kind of Air conditioner refrigerating capacity measuring method and system, to solve the problem that traditional measurement method testing efficiency is low.
Referring to Fig. 1, the structural representation of the disclosed a kind of Air conditioner refrigerating capacity measuring system of the embodiment of the present invention, comprising: the first air-conditioner to be measured, the second air-conditioner to be measured, indoor operating mode machine 11, the first thermo hydrograph regulator 12, outside operating mode machine 13 and the second thermo hydrograph regulator 14;
Wherein:
The first air-conditioner to be measured comprises: the first off-premises station 01 and the first indoor set 02.
The first off-premises station 01 is arranged in the inner room of indoor;
The first indoor set 02 is connected with the first off-premises station 01 and is arranged on chamber in indoor;
Indoor operating mode machine 11 is arranged on chamber in described indoor;
The first thermo hydrograph regulator 12 is arranged on chamber in described indoor.
Similarly,
The second air-conditioner to be measured comprises: the second off-premises station 03 and the second indoor set 04.
The second off-premises station 03 is arranged in the inner room of outside;
The second indoor set 04 is connected with the second off-premises station 03 and is arranged on chamber in outside;
Outside operating mode machine 13 is arranged on chamber in described outside;
The second thermo hydrograph regulator 14 is arranged on chamber in outside.
In summary it can be seen, Air conditioner refrigerating capacity measuring system disclosed by the invention can be carried out refrigeration capacity test to two covers air-conditioner to be measured simultaneously, by the off-premises station of every cover air-conditioner to be measured is arranged on to inner room, indoor set is arranged on indoor, solve the Layout Problem of prior art to air-conditioner to be measured, realize in the situation that original test space is constant, can carry out independent test to two covers air-conditioner to be measured simultaneously, realized and on the basis of a thermal balance platform, completed two thermal balance tests, thereby improved testing efficiency.
And due to the expense that the present invention does not need extra used device to transform in the time realizing two thermal balance tests, therefore, the present invention has also saved experimental cost.
Wherein, in the above-described embodiments, the first off-premises station 01 is connected by the first indoor and outdoor connecting pipe line 05 with the first indoor set 02.
The second off-premises station 03 is connected by the second indoor and outdoor connecting pipe line 06 with the second indoor set 04.
It should be noted that, thermo hydrograph regulator can be structure as a whole, and thermoregulator and humidistat are integrated device; Thermo hydrograph regulator can be also Split type structure, and thermoregulator and humidistat are two independently devices.
Therefore, can be according to the space size of chamber in chamber in indoor and outside, determine that thermo hydrograph regulator that the first thermo hydrograph regulator 12 and the second thermo hydrograph regulator 14 are all structure as a whole is still the thermo hydrograph regulator of Split type structure, certainly, also can one of them thermo hydrograph regulator being structure as a whole, another thermo hydrograph regulator that is Split type structure.
Embodiment is corresponding with said system, and the present invention also provides a kind of Air conditioner refrigerating capacity measuring method.
It should be noted that, according to law of conservation of energy, by internal chamber operating mode machine input power, room leaking heat, humidification water the turnover temperature difference, the isoparametric measurement of condensation water quantity and collection, can obtain Air conditioner refrigerating capacity to be measured.
The disclosed a kind of Air conditioner refrigerating capacity measuring method of the embodiment of the present invention, is applied to the disclosed Air conditioner refrigerating capacity measuring system of above-described embodiment, and measuring method comprises step:
Step S11, obtain the total power input ∑ P of indoor operating mode machine 11
r, chamber humidification is used in indoor water or the enthalpy h of steam
w1, the enthalpy h of chamber condensed water of air conditioner in indoor
w2, condensing capacity W in the first air-conditioner to be measured
r, passed to the leaking heat φ of chamber in indoor by midfeather by chamber in outside
1pand obtain except middle walls, pass to the leaking heat φ of chamber in indoor by wall, floor and ceiling from surrounding environment
1r;
Wherein, total power input ∑ P
runit be W;
Enthalpy h
w1with enthalpy h
w2unit be KJ/kg;
Condensing capacity W
runit be g/s;
Leaking heat φ
1pwith leaking heat φ
1runit be W.
It should be noted that, if do not supply water to the first thermo hydrograph regulator 12 in experimentation, enthalpy h
w1value be the enthalpy under the interior water temperature of the first thermo hydrograph regulator 12 in reprocessor group.
If can not obtain the enthalpy h of condensed water of air conditioner
w2, enthalpy h
w2value be the wet-bulb temperature of condensation temperature or the air-supply of the first air-conditioner to be measured.
Condensing capacity W
rbe the water yield of humidifier evaporation in reprocessor group.
Passed to the leaking heat φ of chamber in indoor by midfeather by chamber in outside
1pdetermine or determined by balanced type calorimeter by calibration experiment.
Pass to the leaking heat φ of chamber in indoor by wall, floor and ceiling from surrounding environment
1rdetermine or determined by balanced type calorimeter by calibration experiment.
Step S12, according to formula φ
tci=∑ P
r+ (h
w1-h
w2) W
r+ φ
1p+ φ
1rcalculate the first Air conditioner refrigerating capacity φ to be measured
tci;
Step S13, obtain the total power input ∑ P of outside operating mode machine 13
o, obtain water that in outside, chamber humidification is used or the enthalpy h of steam
w3, obtain the enthalpy h of chamber condensed water of air conditioner in outside
w4, obtain the condensing capacity W in the second air-conditioner to be measured
o, obtain the leaking heat φ that is passed to chamber in indoor by chamber in outside by midfeather
1p, obtain except middle walls, pass to the leaking heat φ of chamber in outside by wall, floor and ceiling from surrounding environment
1oo;
Wherein, total power input ∑ P
ounit be W;
Enthalpy h
w3with enthalpy h
w4unit be KJ/kg;
Condensing capacity W
ounit be g/s;
Leaking heat φ
1pwith leaking heat φ
1oounit be W.
It should be noted that, if do not supply water to the second thermo hydrograph regulator 14 in experimentation, enthalpy h
w3value be the enthalpy under the interior water temperature of the second thermo hydrograph regulator 14 in reprocessor group.
If can not obtain the enthalpy h of condensed water of air conditioner
w4, enthalpy h
w4value be the wet-bulb temperature of condensation temperature or the air-supply of the second air-conditioner to be measured.
Condensing capacity W
obe the water yield of humidifier evaporation in reprocessor group.
Passed to the leaking heat φ of chamber in indoor by midfeather by chamber in outside
1pdetermine or determined by balanced type calorimeter by calibration experiment.
Pass to the leaking heat φ of chamber in outside by wall, floor and ceiling from surrounding environment
100determine or determined by balanced type calorimeter by calibration experiment.
Step S14, according to formula φ
tco=∑ P
o+ (h
w3-h
w4) W
r-φ
1p+ φ
1oocalculate described the second Air conditioner refrigerating capacity φ to be measured
tco.
It should be noted is that, the acquisition process (being step 11 and step 12) of the first Air conditioner refrigerating capacity to be measured and the acquisition process (being step 13 and step 14) of the second Air conditioner refrigerating capacity to be measured, in practical implementation, there is no sequencing, can first obtain the first Air conditioner refrigerating capacity to be measured, after obtain the second Air conditioner refrigerating capacity to be measured; Or first obtain the second Air conditioner refrigerating capacity to be measured, after obtain the first Air conditioner refrigerating capacity to be measured; Or first Air conditioner refrigerating capacity to be measured and the second Air conditioner refrigerating capacity to be measured obtain simultaneously, the present invention does not limit at this.
In summary it can be seen, Air conditioner refrigerating capacity measuring method disclosed by the invention is according to law of conservation of energy, utilize interior chamber operating mode machine input power, room leaking heat, humidification water in the test environment of every cover tested air conditioner place to pass in and out the parameters such as the temperature difference, condensation water quantity, obtain every cover tested air conditioner refrigerating capacity, thereby realize in the situation that original test space is constant, can carry out independent test to two covers air-conditioner to be measured simultaneously, realized and on the basis of a thermal balance platform, completed two thermal balance tests, therefore improved testing efficiency.
In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment, between each embodiment identical similar part mutually referring to.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. an Air conditioner refrigerating capacity measuring system, is characterized in that, comprising:
Be arranged on the first off-premises station of the first air-conditioner to be measured in the inner room of indoor;
Be connected and be arranged on the first indoor set of described first air-conditioner to be measured of chamber in indoor with described the first off-premises station;
Be arranged on Nei Shi indoor, described indoor operating mode machine;
Be arranged on the first thermo hydrograph regulator of chamber in described indoor;
Be arranged on the second off-premises station of the second air-conditioner to be measured in the inner room of outside;
Be connected and be arranged on the second indoor set of described second air-conditioner to be measured of chamber in outside with described the second off-premises station;
Be arranged on Nei Shi outside, described outside operating mode machine;
And be arranged on the second thermo hydrograph regulator of chamber in described outside.
2. Air conditioner refrigerating capacity measuring system according to claim 1, is characterized in that, described the first off-premises station is connected by the first indoor and outdoor connecting pipe line with described the first indoor set.
3. Air conditioner refrigerating capacity measuring system according to claim 1, is characterized in that, described the second off-premises station is connected by the second indoor and outdoor connecting pipe line with described the second indoor set.
4. Air conditioner refrigerating capacity measuring system according to claim 1, is characterized in that, the thermo hydrograph regulator that described the first thermo hydrograph regulator and described the second thermo hydrograph regulator are all structure as a whole.
5. Air conditioner refrigerating capacity measuring system according to claim 1, is characterized in that, described the first thermo hydrograph regulator and described the second thermo hydrograph regulator are the thermo hydrograph regulator of Split type structure.
6. an Air conditioner refrigerating capacity measuring method, is characterized in that, is applied to the Air conditioner refrigerating capacity measuring system described in claim 1 to 5, comprising:
Obtain the total power input ∑ P of indoor operating mode machine
r, chamber humidification is used in indoor water or the enthalpy h of steam
w1, the enthalpy h of chamber condensed water of air conditioner in indoor
w2, condensing capacity W in the first air-conditioner to be measured
r, passed to the leaking heat φ of chamber in indoor by midfeather by chamber in outside
1pand obtain except middle walls, pass to the leaking heat φ of chamber in indoor by wall, floor and ceiling from surrounding environment
1r;
According to formula φ
tci=∑ P
r+ (h
w1-h
w2) W
r+ φ
1p+ φ
1rcalculate described the first Air conditioner refrigerating capacity φ to be measured
tci;
Obtain the total power input ∑ P of outside operating mode machine
o, obtain water that in outside, chamber humidification is used or the enthalpy h of steam
w3, obtain the enthalpy h of chamber condensed water of air conditioner in outside
w4, obtain the condensing capacity W in the second air-conditioner to be measured
o, obtain the leaking heat φ that is passed to chamber in indoor by chamber in outside by midfeather
1p, obtain except middle walls, pass to the leaking heat φ of chamber in outside by wall, floor and ceiling from surrounding environment
1oo;
According to formula φ
tco=∑ P
o+ (h
w3-h
w4) W
r-φ
1p+ φ
1oocalculate described the second Air conditioner refrigerating capacity φ to be measured
tco.
7. Air conditioner refrigerating capacity measuring method according to claim 6, is characterized in that, if do not supply water to described the second thermo hydrograph regulator in experimentation, and enthalpy h
w3value be the enthalpy under water temperature in the second thermo hydrograph regulator described in reprocessor group.
8. Air conditioner refrigerating capacity measuring method according to claim 6, is characterized in that, if can not obtain the enthalpy h of condensed water of air conditioner
w4, enthalpy h
w4value be the wet-bulb temperature of condensation temperature or described the second air-conditioner to be measured air-supply.
9. Air conditioner refrigerating capacity measuring method according to claim 6, is characterized in that, the described leaking heat φ that is passed to chamber in indoor by chamber in outside by midfeather
1pdetermine or determined by balanced type calorimeter by calibration experiment.
10. Air conditioner refrigerating capacity measuring method according to claim 6, is characterized in that, the described leaking heat φ that passes to chamber in outside from surrounding environment by wall, floor and ceiling
1oodetermine or determined by balanced type calorimeter by calibration experiment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410406569.8A CN104132435B (en) | 2014-08-18 | 2014-08-18 | Air conditioner refrigeration quantity measuring method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410406569.8A CN104132435B (en) | 2014-08-18 | 2014-08-18 | Air conditioner refrigeration quantity measuring method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104132435A true CN104132435A (en) | 2014-11-05 |
| CN104132435B CN104132435B (en) | 2017-01-18 |
Family
ID=51805216
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|---|---|---|---|
| CN201410406569.8A Expired - Fee Related CN104132435B (en) | 2014-08-18 | 2014-08-18 | Air conditioner refrigeration quantity measuring method and system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105318496A (en) * | 2015-09-23 | 2016-02-10 | 珠海格力电器股份有限公司 | Air conditioner control method and device |
| CN106123243A (en) * | 2016-07-27 | 2016-11-16 | 长沙海赛电装科技股份有限公司 | Air-conditioning device refrigeration capacity test method based on multidimensional curve fitting algorithm |
| CN106839323A (en) * | 2017-02-28 | 2017-06-13 | 青岛海尔空调电子有限公司 | A kind of air-conditioner managing device and the air-conditioner with the managing device |
| CN106871357A (en) * | 2017-02-28 | 2017-06-20 | 青岛海尔空调电子有限公司 | A kind of air-conditioner managing device and the air-conditioner with the managing device |
| CN106949611A (en) * | 2017-02-28 | 2017-07-14 | 青岛海尔空调电子有限公司 | A kind of air-conditioner managing device and the air-conditioner with the managing device |
| CN107178871A (en) * | 2017-05-09 | 2017-09-19 | 广东美的制冷设备有限公司 | Air conditioner and its refrigerating capacity acquisition methods and computer-readable recording medium |
| CN107314518A (en) * | 2017-08-31 | 2017-11-03 | 广东美的制冷设备有限公司 | Air conditioner and its efficiency computational methods |
| CN109060340A (en) * | 2018-09-07 | 2018-12-21 | 莱茵技术（上海）有限公司 | A kind of thermal balance room of High Precision Air-conditioning performance test |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105318496A (en) * | 2015-09-23 | 2016-02-10 | 珠海格力电器股份有限公司 | Air conditioner control method and device |
| CN105318496B (en) * | 2015-09-23 | 2018-02-13 | 珠海格力电器股份有限公司 | Air conditioner control method and device |
| CN106123243A (en) * | 2016-07-27 | 2016-11-16 | 长沙海赛电装科技股份有限公司 | Air-conditioning device refrigeration capacity test method based on multidimensional curve fitting algorithm |
| CN106123243B (en) * | 2016-07-27 | 2019-06-04 | 长沙海赛电装科技股份有限公司 | Air-conditioning device refrigeration capacity test method based on multidimensional curve fitting algorithm |
| CN106839323A (en) * | 2017-02-28 | 2017-06-13 | 青岛海尔空调电子有限公司 | A kind of air-conditioner managing device and the air-conditioner with the managing device |
| CN106871357A (en) * | 2017-02-28 | 2017-06-20 | 青岛海尔空调电子有限公司 | A kind of air-conditioner managing device and the air-conditioner with the managing device |
| CN106949611A (en) * | 2017-02-28 | 2017-07-14 | 青岛海尔空调电子有限公司 | A kind of air-conditioner managing device and the air-conditioner with the managing device |
| CN107178871A (en) * | 2017-05-09 | 2017-09-19 | 广东美的制冷设备有限公司 | Air conditioner and its refrigerating capacity acquisition methods and computer-readable recording medium |
| CN107314518A (en) * | 2017-08-31 | 2017-11-03 | 广东美的制冷设备有限公司 | Air conditioner and its efficiency computational methods |
| CN109060340A (en) * | 2018-09-07 | 2018-12-21 | 莱茵技术（上海）有限公司 | A kind of thermal balance room of High Precision Air-conditioning performance test |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104132435B (en) | 2017-01-18 |
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