Optimization Design And Analysis Of Compressed Air Refrigeration Dryer

As the development of the society, the compressed air refrigeration dryer is used more widely. Because of the shortage of energy in recent years, the demand of saving energy is a development trend to the compressed air refrigeration dryer. So this thesis mainly studied the performance of the compressed air refrigeration dryer. The main research contents are as follows:1. Based on the analysis of the system of compressed air refrigeration dryer, the mathematical model of the system was established. And by using the computer language of Visual C++, the applied software to design the system was developed.2. By analyzing the heat transfer of evaporator and pre-cooled exchanger of compressed air refrigeration dryer, a computer program was developed. Analyzed the influence of geometry and thermodynamic parameters, the trend of the over-all heat transfer coefficient was obtained. At the same time, the influence factors on the pressure drop of the compressed air was analyzed.3. According to the economic optimization rules, a mathematical model was established. By developing the computer program, the optimum temperature of compressed air when it leaves the pro-cooled exchanger to evaporator was calculated. Compared calculation results with experimental datum, which shows that the optimized refrigeration dryer will save cost by 20 percent every year.