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基于等效电路模型的热电除湿系统模拟与分析

发表时间:2014-09-30  浏览量:1313  下载量:589
全部作者: 阚超,申利梅,陈焕新,王金山,梁婷
作者单位: 华中科技大学能源与动力工程学院
摘 要: 热电除湿系统是一个热、质、电相关的多变量耦合系统,是一个比较复杂的模拟。为简化算法,建立热电除湿系统的等效电路模型,用PSpice对影响热电除湿系统工作状态的工作电压、热端热阻、冷端风量、环境温度及环境相对湿度进行模拟分析。结果表明:工作电压和热端热阻是影响热电除湿性能的主要因素,冷端风量达到一定值后对除湿性能的影响很小。最后得到,在27℃、相对湿度80%的环境条件下,系统的性能系数(coefficient of performance,COP)和除湿速率与电压的变化关系,指出该热电除湿系统可能的工作状态。研究为热电除湿装置的设计和应用提供了一定的指导。
关 键 词: 制冷与低温工程;热电除湿;等效电路;PSpice;工作电压
Title: Simulation and analysis of thermoelectric dehumidification system based on equivalent circuit model
Author: KAN Chao, SHEN Limei, CHEN Huanxin, WANG Jinshan, LIANG Ting
Organization: School of Energy and Power Engineering, Huazhong University of Science and Technology
Abstract: Thermoelectric dehumidification system is a multivariable coupling system involving with heat, mass and power, and it is a relatively complex modeling. In order to simplify arithmetic, equivalent circuit model of the thermoelectric dehumidification system was established. The operating voltage, hot end thermal resistance, cold end airflow, ambient temperature and ambient relative humidity which affect the working state of the thermoelectric dehumidification system were simulated and analyzed in the PSpice. The results show that the operating voltage and the hot end thermal resistance are the main factors affecting dehumidifying performance, and it is a little influence on the dehumidifying performance after the cold end airflow reach a certain value. When the ambient temperature was 27℃, ambient relative humidity was 80%, we studied the relationship of coefficient of performance (COP) and dehumidification rate of the system with voltage, and got the possible working state of the thermoelectric dehumidification system. It also could provide certain guidance for the design and utilization of the thermoelectric dehumidifier.
Key words: refrigeration and cryogenic engineering; thermoelectric dehumidification; equivalent electrical circuit; PSpice; operating voltage
发表期数: 2014年9月第18期
引用格式: 阚超,申利梅,陈焕新,等. 基于等效电路模型的热电除湿系统模拟与分析[J]. 中国科技论文在线精品论文,2014,7(18):1866-1873.
 
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