Design of Summer Air-conditioning System

The project work concentrates on the development of a summer air conditioning system for the Mechanical Engineering wing in the College of Engineering building at King Faisal University, Kingdom of Saudi Arabia. A complete air conditioning system consists of the basic air conditioning system coupled with the refrigeration system and its associated pumping and cooling tower systems. In this paper, the development of the basic air conditioning system is considered. Therein, sensible and latent heat loads from various sources were evaluated in the mechanical engineering wing and a basic air conditioning system was developed. Based on mixing conditions, five different cases, were considered in this project. As a part of air conditioning system, the basic design of the cooling coil was developed. The cooling coil is a cross flow heat exchanger and it is assumed to be operating in counter cross flow configuration. Performance charts were developed for the counter cross flow heat exchanger in terms of meaningful dimensionless parameters. These charts will certainly help heat exchanger designers in developing the most cost efficient heat exchanger.