This document is a lecture on refrigeration and air conditioning from the Mechanical Engineering Department at Geeta Engineering College in Naultha, Panipat. It discusses the topics of refrigeration and air conditioning. The lecture is part of a series from the college's Mechanical Engineering Department.

1. Refrigeration
and
Air-Conditioning
Lecture-3
Mechanical Engg. Department
Geeta Engineering College
Naultha Panipat