Transcription of UNIT 4 REFRIGERANTS - IGNOU
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UNIT 4 REFRIGERANTS - IGNOU
unit 4 REFRIGERANTS Structure Introduction Objectives Primary and secondary REFRIGERANTS classification of REFRIGERANTS Designation of REFRIGERANTS Desirable Properties of REFRIGERANTS Thermodynamic Properties Chemical Properties Physical Properties Safety Criteria Economic Criteria Common REFRIGERANTS Ozone Depletion Potential and Global Warming Potential secondary REFRIGERANTS Illustrative Problems Summary Answers to SAQs INTRODUCTION The working agent in a refrigerating system that absorbs carries or releases heat from the place to be cooled or refrigerated can be termed as a refrigerant . This heat transfer generally takes place through a phase change of the refrigerant .
UNIT 4 REFRIGERANTS Structure 4.1 Introduction Objectives 4.2 Primary and Secondary Refrigerants 4.3 Classification of Refrigerants 4.4 Designation of Refrigerants
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