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高低温试验箱能效测试方法
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GBT 33861-2017
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标准编号: GB/T 33861-2017 (GB/T33861-2017)
中文名称: 高低温试验箱能效测试方法
英文名称: Testing method of energy efficiency for temperature test chambers
行业: 国家标准 (推荐)
中标分类: F01
国际标准分类: 27.010
字数估计: 10,175
发布日期: 2017-07-12
实施日期: 2018-02-01
起草单位: 广东产品质量监督检验研究院、扬州光电产品检测中心、机械工业仪器仪表综合技术经济研究所、杭州雪中炭恒温技术有限公司、重庆四达试验设备有限公司、广州五所环境仪器有限公司、上海市计量测试技术研究院、上海爱斯佩克环境设备有限公司、成都易华天宇试验设备有限责任公司、深圳市标准技术研究院、无锡苏南试验设备有限公司、湖南省计量检测研究院、浙江省计量科学研究院、广州能源检测研究院、深圳国技仪器有限公司、无锡苏南试验设备有限公司、珠海格力电器股份有限公司、中国计量大学
归口单位: 全国实验室仪器及设备标准化技术委员会(SAC/TC 526)
提出机构: 中国机械工业联合会
发布机构: 中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会
GB/T 33861-2017: 高低温试验箱能效测试方法
GB/T 33861-2017 英文名称: Testing method of energy efficiency for temperature test chambers
ICS 27.010
F01
中华人民共和国国家标准
1 范围
本标准规定了高低温试验箱(以下简称试验箱)能效测试的术语和定义、技术要求、测试条件、测试方法等。
本标准适用于工作空间不大于5m3、温度变化速率不大于5℃/min试验箱的能效测试。
4 技术要求
试验箱的技术要求应符合GB/T 10592-2008的相关要求。
5 测试条件
5.1 环境条件
试验箱环境测试条件应满足:
a) 环境温度:23℃±2℃,环境温度测点处垂直方向的温度梯度不应超过2℃/m;
注:环境温度(试验箱周围的空间温度),即试验箱边壁垂直中心线1m、距地面1m处的测试点测得的温度(环境温
度不应受到试验箱出气口温度的影响)。
b) 相对湿度:≤85%;
c) 气压:80kPa~106kPa;
d) 无强制对流空气。
5.2 电源条件
试验箱电源测试条件应满足:
a) 交流电压:220V±6.6V或380V±11.4V;
b) 频率:50Hz±0.5Hz。
5.3 供水条件
可使用满足下列条件的自来水或循环水:
a) 水温:23℃±1℃;
b) 水压:0.20MPa±0.05MPa;
c) 水质:符合GB/T 19923-2005的要求。
5.4 测试设备
5.4.1 电能测量仪表
测量范围:电压、电流测量范围满足试验要求。
电能测量最大允许误差:不超过±0.5%。
用途:试验箱消耗有功电能测量。
5.4.2 功率表
测量范围:电压、电流测量范围满足试验要求。
功率测量最大允许误差:不超过±0.5%。
用途:热负载功率测量。
5.4.3 温度记录仪
温度测量范围:-60℃~150℃。
最大允许误差:±0.5℃。
用途:试验箱几何中心温度测量。
5.4.4 秒表
日差的最大允许误差:±1s。
5.4.5 压力表
压力测量范围:0MPa~0.4MPa。
准确度等级:等于或优于1级。
用途:水压测量。
5.4.6 温度计
测量范围:0℃~50℃。
最大允许误差:±0.2℃。
用途:环境温度及水温测量。
5.4.7 钢卷尺
准确度等级:Ⅱ级及以上。
用途:试验箱几何尺寸测量。
6 测试方法
6.1 试验箱工作状态
除6.7外,试验箱测试时应保持空载,并符合如下要求:
a) 制冷系统的冷却:采用风冷的试验箱,应确保冷凝器入口空气温度满足5.1条件,采用水冷的
试验箱,应确保冷却水温度满足5.3条件,冷却水流量应满足试验箱对冷却的要求;
b) 预定与试验箱连接才能确保试验箱正常工作的附件,应按照使用说明书的安装要求完成安装与连接;
c) 连续通电的除霜装置应保持开通状态;自动通电的除霜功能应保持自动状态;手动控制的除霜
功能、照明等应保持断开状态;
d) 配置有测试孔的试验箱应采用附带的塞子保持测试孔密封;
e) 试验箱的门应保持完全关闭状态;
f) 将试验箱置于规定测试条件下预置至少2h,使试验箱内温度与环境温度一致;
g) 恒温试验应使试验箱达到设定温度和温度稳定;变温试验应使试验箱以最大温度变化速率升温或降温;
h) 装备风门的试验箱,应使风门处于关闭状态。
6.2 工作空间的测量
采用尺等工具,将距离试验箱工作室壁为各自边长1/10的空间,分为若干易于测量的简单几何形
状进行测量,其结果即为试验箱工作空间,用V 表示。
6.3 几何中心点温度的测量
将温度巡检仪的探头置于试验箱几何中心点,每隔1min测试温度值1次。
注:几何中心点见GB/T 10592-2008中6.3.1。
6.4 试验箱低温试验温度
试验箱低温试验温度在几何中心点测试。当试验箱的低温极限温度低于-55℃,试验温度取
-55℃,当试验箱的低温极限温度高于-55℃且低于-25℃时,试验温度取-25℃。低温极限温度
高于-25℃时,采用试验箱标称的低温极限温度,但应在声明能效时标注测试温度。
6.5 恒温试验
6.5.1 常温恒温试验
设定试验箱使几何中心点温度达到25℃,维持温度稳定2h,记录其中后1h的耗电量,用E1表示。
设定试验箱使几何中心点温度达到125℃,维持温度稳定2h,记录其中后1h的耗电量,用E2表示。
6.5.3 低温恒温试验
设定试验箱使几何中心点温度达到6.4的要求,维持温度稳定2h,记录其后1h的耗电量,用E3表示。
6.6 变温试验
6.6.1 升温试验
设定试验箱使几何中心点温度达到25℃,维持温度稳定运行2h,再以最大温度变化速率升温到最
高极限温度,记录从25℃至125℃区间内的耗电量E4、升温时间T1。
6.6.2 降温试验
设定试验箱使几何中心点温度达到25℃,维持温度稳定运行2h,再以最大温度变化速率降温到最
6.7 热载能力试验
在试验箱中心位置放置一个输入功率可调的阻性电热元件。在25℃、-25℃、-55℃三个特征
温度点中,选择试验箱能够达到的最低温度作为测试温度,保持温度稳定,随后逐渐增加阻性电热元件
的功率,达到能够使试验箱再次保持温度稳定的最大功率,记录阻性电热元件的输入功率值,用P1 表
示,同时测试试验箱的输入功率,用P2 表示。
GB/T 33861-2017
GB
NATIONAL STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
ICS 27.010
F 01
Testing method of energy efficiency
for temperature test chambers
ISSUED ON. JULY 12, 2017
IMPLEMENTED ON. FEBRUARY 1, 2018
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
Foreword
This Standard was drafted in accordance with the rules given in GB/T
1.1-2009.
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
Metrology.
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
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
2°C/m;
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
following.
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
Measuring range. voltage, current measurement range shall meet the testing
requirements.
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
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;
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
closed.
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.
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