Expert System Design Of Thermoelectric Cooler And Power Generator

Thanks to the development of thermoelectric materials and the increasing requirement in relevant fields, thermoelectric devices has found their important place in people's daily life and industry production. Designing appropriate thermoelectric systems for various requirements is an important process. To design the thermoelectric cooling and power generation systems, many calculations must be done and a number of parameters need to be optimized. With the help of computer auxiliary design, calculation can go both correctly and promptly and many parameters are put into database for easy and speedy search and calculation to provide an optimal solution.Based on the analysis and calculation model of thermoelectric cooling and power generation systems, the device and environment was considered as a whole, heat flow between the device and environment, and heat flow between several parts of the device were studied. Therefore, the performance characteristic of the system was optimized. Two optimal models of thermoelectric cooling and power generation systems were established.The software was developed with VB 6.0(Microsoft Visual Basic 6.0) and ActiveX data object (ADO) was used for visiting the database. By the need of users, it not only supplies an optimal solution of thermoelectric coolers from the product database, but also designs thermoelectric coolers on the basis of materials. The software consists of two subprograms: thermoelectric cooling module and power generation module. The thermoelectric cooling module supplies the calculation of heat load, performance characteristic of coolers (current, voltage, cooling efficiency, cooling capacity),heat sinks ; the power generation module supplies performance characteristic of generators. The function of software consists of file process module, heat load calculation module,optimal design module,database module,help module. Finally, we approached a way for the design of thermoelectric cooling and power generation system after making comparison among varies of optimal calculating methods.