热管散热半导体制冷系统的实验研究  

Experimental Study on Semiconductor Refrigeration System with a Heat Pipe Radiator

作　　者：戴源德[1] 温鸿[1] 于娜[1] 曹志高[1] 

机构地区：[1]南昌大学机电工程学院,江西南昌330031

出　　处：《南昌大学学报（工科版）》2013年第1期54-57,共4页Journal of Nanchang University(Engineering & Technology)

基　　金：国家科技型中小企业技术创新基金项目(09C26213601604)

摘　　要：半导体制冷利用半导体材料的珀尔帖效应来实现,不使用压缩机和制冷剂,且不存在噪声和制冷剂污染环境的问题。半导体制冷系统的性能好坏与热端的散热条件有直接关系,为改善热端散热条件,研制了1台热管散热型半导体冷箱。通过性能测试实验,确定了半导体制冷系统的最佳工况,并比较热管散热、风冷散热和水冷散热方式对系统制冷性能的影响。实验结果表明:热管散热是半导体制冷系统的最佳热端散热方式。Back Propagation （BP） neural network was proposed to establish a mathematical model for predicting the functional relationship between outputs （ NOx emissions ＆ overall heat loss of the boiler） and inputting （ operational parameters of the boiler） of a coal-fired boiler. A number of field test data from a full-scale operating 300MWe boiler was used to train and verify the BP model. Then, BP model and the non-dominated sorting genetic algorithm II （NSGA-II） were combined to gain the optimal operating parameters which lead to lower NOx emissions and overall heat loss boiler. The NOx emissions ＆ overall heat loss predicted by the BP neural network model showed good agreement with the measured, the optimization results showed that hybrid algorithm by combining BP neural network and NSGA-II could be a good tool to solve the problem of multi-objective optimization of a coal-fired combustion, which could reduce NOx emissions and overall heat loss effectively for the coal-fired boiler.

关 键 词：半导体制冷 热管散热 食品冷藏 制冷性能 

分 类 号：TB61[一般工业技术—制冷工程]