Study Modeling Analysis Evaluation Selection and Performance Improvement of Air Conditioning System

Abstract

Air conditioning is a broader aspect which looks into the simultaneous control of all mechanical parameters which are essential for the comfort of human beings or animals or for the proper performance of some industrial or scientific process. Air conditioning system is a device consisting of components and equipment arranged in sequential order to satisfy the various space conditions required for comfort as well as industrial air conditioning. Various types of air conditioning applications are: apartment buildings, banks, office buildings, hospitals, industrial plants, schools, restaurants, department stores, hotels, etc. Increased demands for air conditioning have brought about rapid increase in number of air conditioning systems and air conditioner manufacturers. This growing demand for air conditioning systems which provide appropriate performance on the whole life basis has brought about many changes in the attention focused on the proper selection of air conditioning systemIn this thesis work, a new methodology has been developed for the evaluation, comparison, ranking and optimum selection of an air conditioning system from the different alternative designs available in the global market. This proposed methodology is based on Multi Attribute Decision Making (MADM) approach. Pertinent attributes which describe the whole air conditioning system are identified in an exhaustive way. A n-digit coding scheme based on all the pertinent attributes for a given air conditioning system is suggested, that is useful for the development of a comprehensive database of available air conditioning systems, and their subsequent retrieval. The air conditioning system selection procedure allows rapid convergence from a very large number of options to a manageable shortlist of potentially suitable air conditioning systems using „Elimination Search‟ based on few critical selection attributes. Then the selection procedure proceeds to evaluate and rank the shortlisted alternatives by employing the TOPSIS approach. Three graphical techniques of comprehensive comparison namely histogram, graphical and radar are also presented to better educate the decision makers. The proposed 3-stage selection methodology is explained with the help of an illustrative example. This methodology provides good insight to the air conditioning system manufacturer so that he can improve his product or introduce new product to fulfill the need of costumer. It will also help the designer at various design stages, while the maintenance people can plan maintenance strategy to reduce the down time.