Computer Simulation Of Refrigeration System In Room Air-conditioner & Its Application

With the development of the computer applications, the math model-based simulation technique is becoming more and more important in many areas today .The traditional style of designing and testing of air-condition is often perceived as time consuming and many people complain that they have to spent much time on designing and testing . So it is very necessary to develop the math model-based simulation technique of the refrigerating systems in room air-condition.In order to provide a high efficiency tool for the development of the new type air-conditioner, based on the latest researches at home and abroad, the author tries to develop the math model-based simulation technique of the refrigerating systems in room air-condition. Besides, components of air conditioner and system algorithm are discussed. The simulation software for air-conditioners in the use of computer has been developed, which can provide a feasible tool for the development of the new type air-conditioner.The basic developing methods of simulation software are farther discussed, which is needed in the development of simulation software about the refrigerating systems. The systems have been divided into four main parts: condenser, evaporator, compressor, and capillary. Their performance's simulations have been investigated separately. Base upon, the refrigerant measurement has been introduced, which helps the four parts to come into being the main module in series.Math models of condenser, evaporator, compressor, and capillary are established and model predigesting and modifying methods are given. Methods given in this thesis can transfer the practical system into the simulating system. In the basis of refrigerating system character, components models are modified in the system administrative levels. The corresponding model and algorithm are formed. Based on the algorithm and model, the simulating software of air-conditioner refrigerating system has been developed.The simulation software of refrigerating systems in room air-conditioner is successful in calculating the product characteristics or designing new products for xi'an Qing-AN Company, which proves the practicability of achievements of this dissertation.