in MECHANICAL ENGINEERING presented on (Major) (Date) Title: COMPUTER AND HEATING AND AIR CONDITIONING

The repetitious nature of air conditioning calculation leads to arithmetic errors and a high cost of designing air conditioning sys-tems. Short cut calculations are employed to limit the calculation and the chance of making errors. Computers with their high speed of calculation and the ability to make limited "logic's decisions are ideally suited for air condition-ing calculations. Previously programs were developed to calculate the heating and cooling loads, design the duct system, design the water and steam pipes and to evaluate designed systems. No work had been done to develop a program for the air analysis for the building. Most programs developed thus far are proprietory and thus not any engineers can use them. Also they use old data and methods of calculation. This thesis discusses the development of two new programs. The first is a new program to calculate the cooling and heating loads for buildings. This program Incorporates the latest data and methods in calculating the solar loads. The second is a new program to perform the air analysis for different types of air distribution systems. The two programs were tested on a small school structure. The results compared favorably with those obtained using the conventional method