GB/T 18517-2012 English PDF

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GB/T 18517-2012: Terminology of refrigeration
Status: Valid

GB/T 18517: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 18517-2012	1479	Add to Cart	10 days	Terminology of refrigeration	Valid
GB/T 18517-2001	RFQ	ASK	9 days	Refrigeration terminology	Obsolete

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Basic data

Standard ID: GB/T 18517-2012 (GB/T18517-2012)
Description (Translated English): Terminology of refrigeration
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A22
Classification of International Standard: 01.040
Word Count Estimation: 67,665
Older Standard (superseded by this standard): GB/T 18517-2001
Regulation (derived from): National Standards Bulletin 2012 No. 28
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the jewelery and precious metals products, materials and species classification and code. This standard applies to jewelery and precious metals products, information processing and exchange of information.

GB/T 18517-2012: Terminology of refrigeration

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS01.040 A22 National Standards of People's Republic of China Replacing GB/T 18517-2001 Refrigeration term Issued on. 2013-03-01 2012-11-05 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Introduction Ⅲ 1 Scope 1 2 Basic terms 1 2.1 Temperature 1 2.2 Pressure 2 2.3 humidity 2 2.4 Heat 3 2.5 Thermodynamic Properties and Process 4 2.6 Heat and Mass Transfer 5 3 Cooling 5 3.1 Cooling Methods 5 3.2 Refrigeration Cycle 7 3.3 Performance parameters and conditions 8 3.4 Cooling System 11 3.5 refrigeration unit 12 3.6 refrigerants and coolants 15 3.7 Refrigeration and Environment 16 17 4 Refrigeration Equipment 17 4.1 Refrigeration Compressors Annex 18 4.2 Refrigeration Compressors 4.3 refrigeration compressor performance parameters 19 4.4 expander 20 4.5 exchanger 21 4.6 Annex 24 5 refrigeration and cold chain 27 5.1 Basic Concepts 27 5.2 cold equipment 30 5.3 Storage 32 5.4 Refrigerated Transport 33 5.5 Distribution 34 6 air conditioning 35 6.1 Basic Concepts 35 Air conditioning system 6.2 35 Air conditioning equipment 36 6.3 6.4 ventilation and clean 38 7 pump 39 8 and Cryogenics Cryogenic Engineering 40 8.1 Basic Concepts 40 8.2 cryogenic equipment and cryogenic apparatus 43 8.3 cryogenic and cryogenic biological medicine 44 9 refrigeration applications in other areas 46 Index 47

Foreword

This standard rule according to GB/T 1.1-2009 given draft. This standard replaces GB/T 18517-2001. Compared with GB/T 18517-2001, major technical changes in addition to editorial changes outside as follows. --- An increase of 358 terms; --- Removed 132 terminology; --- Chapter structure has been adjusted to the subdivision. The standard proposed by the People's Republic of China Ministry of Commerce. This standard by the National Standardization Technical Committee refrigeration (SAC/TC119) centralized. This standard was drafted. China Refrigeration Institute, Beijing University of Technology, Xi'an Jiaotong University, Tsinghua University, Shanghai Jiaotong University, domestic trade Engineering Design and Research Institute, Chinese Academy of Sciences Institute of Physical and Chemical Technology, China Academy of Building Research Building Environment and Energy Research Institute. The main drafters of this standard. Xu Qinglei horse country away, Xing Ziwen, from Yin Xu, Wang Baolong, Zhang Peng, Wu Jianfeng, Xu Wei, Yang Yifan, Shen nine soldiers, Raymond Tsang. The previous standard published case. --- GB/T 18517-2001. Refrigeration term

1 Scope

This standard defines the term refrigeration. This standard applies to professional refrigeration products manufacturing, engineering design, construction, maintenance and management as well as research, education and other fields.

2 Basic terms

2.1 Temperature 2.1.1 Ambient temperature ambienttemperature Objects in the environment surrounding the object and is not disturbed or affected (usually air) temperature. 2.1.2 Limit temperature limitingtemperature Material or product before a failure occurs to achieve maximum or minimum temperature. 2.1.3 Air dry bulb temperature airdry-bulbtemperature In the air, no effects of radiation sensitive elements with a common thermometer indicated temperature. 2.1.4 Air wet bulb temperature airwet-bulbtemperature When the package has lower wet gauze soaked in water temperature on the thermometer package, delivered by air water heat of vaporization of water absorbed is equal to When the heat, temperature of the water or damp material will remain unchanged, the air temperature is the wet bulb temperature. 2.1.5 Dew point temperature dewpointtemperature While maintaining the water vapor content in the air the same conditions, cooling the air by constant pressure of water vapor reaches a temperature of saturation. 2.1.6 Frost temperature frostpointtemperature In the case of a given pressure and composition, temperature of the mixed gas of one or more components of the beginning of solidification; for moist air, giving The case of a given pressure and composition, wherein the temperature of the water vapor begins to solidify when. 2.1.7 Saturation temperature saturationtemperature At a given pressure, liquid and gaseous substances, gaseous or solid state at a temperature and time of dynamic equilibrium. 2.1.8 Condensing temperature condensingtemperature At a given pressure, the saturation temperature of the refrigerant liquefaction. 2.1.9 Evaporation temperature evaporatingtemperature At a given pressure, the saturation temperature of the refrigerant gasification. 2.1.10 Suction temperature suctiontemperature The gas temperature at the inlet of the compressor. ......

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