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GB/T 33861-2017 English PDF

GB/T 33861-2017 (GB/T33861-2017, GBT 33861-2017, GBT33861-2017)
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Standard ID GB/T 33861-2017 (GB/T33861-2017)
Description (Translated English) Testing method of energy efficiency for temperature test chambers
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard F01
Classification of International Standard 27.010
Word Count Estimation 10,150
Date of Issue 2017-07-12
Date of Implementation 2018-02-01
Drafting Organization Guangdong Product Quality Supervision and Inspection Research Institute, Yangzhou Optoelectronic Product Testing Center, Machinery Industry Instrument Integrated Technology and Economic Research Institute, Hangzhou snow carbon temperature Technology Co., Ltd., Chongqing four test equipment Co., Ltd., Guangzhou five environmental instruments Co., Ltd., Shanghai Metrology and Testing Technology Research Institute, Shanghai Ai Si Peike Environmental Equipment Co., Ltd., Chengdu Yihua Tianyu Test Equipment Co., Ltd., Shenzhen Standard Technology Research Institute, Wuxi Sunan Experimental Equipment Co., Ltd., Hunan Institute of Measurement and Testing, Zhejiang Metrology Science Research Institute, Guangzhou Energy Testing Research Institute, Shenzhen State Technology Instrument Co., Ltd., Wuxi Sunan Experimental Equipment Co., Ltd., Zhuhai Gree Electric Co., Ltd., China Metrology University
Administrative Organization National Laboratory Equipment and Equipment Standardization Technical Committee (SAC/TC 526)
Proposing organization China Machinery Industry Federation
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China, China National Standardization Administration Committee

Standards related to: GB/T 33861-2017

GB/T 33861-2017
ICS 27.010
F 01
Testing method of energy efficiency
for temperature test chambers
ISSUED ON. JULY 12, 2017
Issued by. General Administration of Quality Supervision, Inspection
and Quarantine;
Standardization Administration Committee.
3. No action is required - Full-copy of this standard will be automatically &
immediately delivered to your EMAIL address in 0~60 minutes.
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Terms and definitions ... 4 
4 Technical requirements ... 5 
5 Testing conditions ... 6 
6 Testing methods ... 7 
7 Calculation method of energy efficiency ... 10 
This Standard was drafted in accordance with the rules given in GB/T
This Standard was proposed by China Machinery Industry Federation.
This Standard shall be under the jurisdiction of National Technical Committee
on Laboratory Instrument and Equipment of Standardization Administration of
China (SAC/TC 526).
The drafting organizations of this Standard. Guangdong Institute of Product
Quality Supervision and Inspection, Yangzhou Optoelectronics Products
Testing Center, Machinery Industry Instrumentation Technology and Economy
Institute, Hangzhou Xuetemp Technology Co., Ltd., Chongqing Sida Test
Equipment Co., Ltd., Guangzhou Wusuo Environmental Equipment Co., Ltd.,
Shanghai Institute of Measurement and Testing Technology, Shanghai
Aisipeike Environmental Equipment Co., Ltd., Chengdu Yihua Tianyu Test
Equipment Co., Ltd., Shenzhen Institute of Standards and Technology, Wuxi
Sunan Test Equipment Co., Ltd., Hunan Institute of Measurement and Testing,
Zhejiang Institute of Metrology, Guangzhou Institute of Energy Testing,
Shenzhen National Technology Instrument Co., Ltd., Wuxi Sunan Test
Equipment Co., Ltd., Zhuhai Gree Electric Co., Ltd., China University of
Main drafters of this Standard. Gao Xiaodong, Wang Chengcheng, Tang
Lihua, Zhang Guiling, Wei Yuefeng, Li Siyuan, Chen Jinhan, Xu Yueming, Xie
Chenhao, Tang Suiping, Feng Hua, Ling Yancui, Chen Yunsheng, Huang
Qiang, Wang Ke, Wu Shuangshuang, Yang Ru, Zhou Lianqin, Zhu Ping,
Pang Yan, Chen Shuai, Duan Huawei, Meng Jiawen, Zhou Siqing, Huang Yu,
Hu Fen, Chen Qiyong, Hu Xiaofeng, Jiang Jianhui, Xie Xiaofang.
Testing method of energy efficiency
for temperature test chambers
1 Scope
This Standard specifies the terms and definitions, technical requirements,
testing conditions, testing methods of temperature test chambers (hereinafter
referred to as test chambers).
This Standard applies to the energy efficiency test of test chambers of which
the working space is not greater than 5 m3, temperature rate of change is not
higher than 5°C/min.
2 Normative references
The following referenced documents are indispensable for the application of
this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including
any amendments) applies.
GB/T 10592-2008, Specification for low/high temperature test chambers
GB/T 19923-2005, The reuse of urban recycling water - Water quality
standard for industrial uses
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1 temperature test chambers
closed body or space equipped with heating and cooling devise at the same
time, some of which can meet the specified test conditions
3.2 constant temperature energy efficiency
the energy consumed for maintaining constant temperature per working
space for 1h during the thermostat of the test chambers
NOTE. The unit is J/m3.
5 Testing conditions
5.1 Ambient conditions
The ambient testing conditions of test chambers shall meet the following.
a) ambient temperature. 23°C ± 2°C, the temperature gradient of ambient
temperature measuring point at the vertical direction shall not exceed
NOTE. ambient temperature (space temperature around the test chamber) refers to
the temperature measured at the measuring point, 1m from vertical central line of the
test chamber wall, 1m from the ground (the ambient temperature is not affected by
the outlet temperature of the test chamber).
b) relative humidity. ≤85%;
c) air pressure. 80kPa ~ 106kPa;
d) without forced convection air.
5.2 Power supply conditions
The power supply testing conditions for the test chamber shall meet the
a) AC voltage. 220V ± 6.6V or 380V ± 11.4V;
b) frequency. 50Hz ± 0.5Hz.
5.3 Water supply conditions
Tap water or circulating water meeting the following conditions may be used.
a) water temperature. 23°C ± 1°C;
b) water pressure. 0.20MPa ± 0.05MPa;
c) water quality. meet the requirements of GB/T 19923-2005.
5.4 Testing equipment
5.4.1 Energy measuring instrument
Measuring range. voltage, current measurement range shall meet the testing
Maximum allowable energy measurement error. no more than ± 0.5%.
In addition to 6.7, the test chambers shall be empty loaded during the test and
meet the following requirements.
a) cooling of refrigeration system. the test chambers using air cooling shall
ensure that the inlet air temperature of condenser meet the conditions
listed in 5.1; the test chambers using water cooling shall ensure that the
cooling water temperature meet the conditions of 5.3 and the cooling
water flow meet the requirements of the test chambers for cooling;
b) the accessories that are scheduled to connect with the test chambers to
ensure normal working of the test chamber shall be installed and
connected according to the installation requirements in the instructions
for use;
c) defrosting device continuously powered shall be kept on; automatic
defrost function shall be maintained in automatic state; manual control
of the defrost function, lighting, etc. shall be kept off;
d) the test chambers equipped with test holes shall use the attaching plug
to make test holes sealed;
e) the door of the test chamber shall be completely closed;
f) pre-set the test chamber under the specified test conditions at least 2h
so as to make the temperature inside the oven consistent with the
ambient temperature;
g) the constant temperature test shall make the test chamber reach preset
temperature and maintain stable; the temperature change test shall
make the test chamber increase or decrease the temperature at the
maximum temperate rate of change;
h) the test chamber equipped with ventilation door shall make the door
6.2 Measurement of working space
Use ruler and other tools to divide the space that the distance to the test
chamber wall is 1/10 of each side length into a number of simple geometric
shapes that are easy to measure for the measurement. The result shall be the
working space of the test chamber, represented in V.
6.3 Measurement of geometric center temperature
Place the probe of the temperature inspection device in the geometric center
of the test chamber. Test the temperature value once every 1min.
NOTE. See 6.3.1 of GB/T 10592-2008 for the geometric center.