Study Of Thermal Performance Optimization On Engine Heat Pipe Intercooler

With the incessant increase of power density in diesel engine, the turbo-charging intercooling as an important way of raising power performance and fuel economy and emissions has been used more and more in the exploitation of highly intensified diesel engine. The role of turbocharging is to increase the pressure of intake into the cylinder to increase the air density, however, with the supercharged intensity increasing, the temperature of intake air increases significantly, which hindered the further improvement of engine performance. Intercooler is the key part of the charge-air cooling. So some of the famous manufacturers and their research institutions have not hesitated to launch manpower and material resources into the research, expect to develop more advanced and perfect manufacture.Owe to the request of high efficiency intercooler and the characteristic of the heat-pipe heat-exchanger and a wide range of applications, it may well be a meaningful exploration using the heat-pipe cooling technology for the heat-exchanger components in a intercooler.In this paper, based on theory of heat transfer and the research of heat pipe exchanger design and intercooler design,the heat pipe intercooler design software is compiled to achieve the programmed design.In this paper, based on the analysis of air-air intercooler features, establishes the thermal performance of intercooler optimization mathematical model, and based on the development of optimization theory, studies the heat exchanger optimization method and designs optimization program using the adaptive general algorithm (AGA for short). Also uses the optimization program to determine the heat pipe exchanger structure size for one type of diesel engine tube fin intercooler design requirements, and the author analyzed the factors influencing the performance lf heat pipe intercooler and the theory is given in selecting the optimal structure of hear pipe intercooler.In this paper, author uses the optimization program to design the heat pipe intercooler with the same size, and analysis the thermal performance between the heat pipe exchanger and the tube fin intercooler in order to obtain the superiority and feasibility.In this paper, a fluorescent tube heat pipe exchanger is designed to complete the performance test. The calculation procedure is amended by using the test data and the accurate of the amended procedure is verified. In addition, the author design the fin heat pipe exchanger which volume is only 22.58 percent of the fluorescent tube heat pipe exchanger, but they have the same thermal performance.