: The 4th Edition (ISBN: 9781259062704) is the current standard, featuring roughly 738–768 pages of content.

The basic principle of refrigeration is based on the transfer of heat from a colder body to a hotter body. This is achieved through the use of a refrigerant, which is a substance that changes state from liquid to gas as it absorbs heat from the surrounding environment.

: Key concepts such as enthalpy, entropy, and the first and second laws of thermodynamics as they relate to cooling processes.

Basic Refrigeration and Air Conditioning by P.N. Ananthanarayanan is a standard textbook that balances theoretical principles with practical field applications. While it is a commercial publication by McGraw Hill Education (India) and not legally available for free download as a full PDF, verified digital versions for preview or institutional access can be found on platforms like Scribd and Google Books. Key Features of the Book

: It addresses the evolution of refrigerants, including zeotropic blends and the global warming potential (GWP) of different substances, alongside modern action plans for reducing ecological hazards.