What is Refrigeration and Air conditioning? This question is well explained by TraEduTec YouTube channel in this video of RAC Tutorial.

What is Refrigeration and Air conditioning? This question is well explained by TraEduTec YouTube channel in this video of RAC Tutorial.
following points are well explained in this tutorial
Definition of Refrigeration and Air conditioning,
Introduction to Refrigeration and Air conditioning,
coefficient of performance of Refrigerator,
coefficient of performance of Heat Pump,
coefficient of performance of Heat Engine.

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