翅片式气-水散热器动态特性仿真研究

姬锋军¹，宋举星¹，李良洁²，展茂胜²，韩吉田^2*

1.山东电力工程咨询院有限公司，山东 济南 250013；

2.山东大学能源与动力工程学院，山东 济南 250061

摘要：将传热过程分为水侧和空气侧传热2部分，基于MATLAB/Simulink软件建立散热器的动态特性仿真模型，研究翅片式气-水散热器入口水温、流量、入口空气温度等参数变化对其动态性能的影响。研究结果表明:散热器的换热量随入口水温、入口热水流量和入口空气温度的降低而降低；散热器热水和空气出口温度随入口热水质量流量的降低而下降。该研究为翅片式气-水散热器的动态特性研究与运行分析提供了一种简单实用的仿真工具。

关键词：翅片式换热器；动态仿真；换热性能；MATALAB/Simulink仿真

Simulation study on dynamic characteristics of finned air-water radiators

JI Fengjun¹, SONG Juxing¹, LI Liangjie², ZHAN Maosheng², HAN Jitian^2*

1. Shandong Electric Power Engineering Consulting Institute Corp., Ltd.，Jinan 250013,China;

2. School of Energy and Power Engineering, Shandong University, Jinan 250061,China

Abstract：The heat transfer process is divided into two parts: water side and air side heat transfer. Based on MATLAB / Simulink software, the dynamic characteristics simulation model of the radiator is established to study the influence of the changes of the inlet water temperature, flow rate, inlet air temperature and other parameters of the finned air-water radiator on its dynamic performance. The results show that the heat transfer of the radiator decreases with the decreasing inlet water temperature, inlet hot water flow and inlet air temperature. The outlet temperatures of the hot water and air of the radiator decrease with the decreasing mass flow of the inlet hot water. This paper provides a simple and practical simulation tool for the dynamic characteristics research and operation analysis of finned air-water radiator.

Keywords:finned radiator; dynamic simulation; heat transfer performance; MATLAB/Simulink simulation