Refrigeration & Air Conditioning-Part-01| Basic Mechanical Engg. | SNS Institutions
Автор: Rajesh Kumar D
Загружено: 2025-12-11
Просмотров: 10
Описание:
This lecture introduces Unit 5: Refrigeration and Air Conditioning for Basic Mechanical Engineering students at SNS Institutions, using a design thinking approach. The session explains the basic meaning of refrigeration and air conditioning, highlighting the need for cooling in the context of global warming, human comfort, and everyday applications like domestic refrigerators and room air conditioners.
Key concepts such as closed systems, removal and maintenance of temperature, and the idea that air conditioning removes heat rather than “creating cold” are clearly discussed with simple examples. The lecture also covers the major components of a refrigeration system—compressor, condenser, expansion device, and evaporator—along with important terminologies like refrigerant, air handling unit (AHU), BTU, superheat, and subcooling, setting the foundation for later topics such as vapor compression, vapor absorption, and domestic refrigerator working.
#snsinstitutions #snsdesignthinkers #designthinking
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