制冷技术2016，Vol.36Issue(2)：52-56,5.DOI:10.3969/j.issn.2095-4468.2016.02.205
排风热回收对地铁空调机组性能提升的仿真分析
Simulation and Analysis of Performance Improvement for Metro Train Air Conditioning Unit with Exhaust Air Heat Recovery
蔡思维 1邵亮亮 1张春路 1李剑 2宋文强2
作者信息
- 1. 同济大学制冷与低温工程研究所，上海 201804
- 2. 中车青岛四方机车车辆股份有限公司，山东青岛 266000
- 折叠
摘要
Abstract
Metro train air conditioning differs from traditional residential air conditioning a lot in many aspects, like the bad running environment, complicated operation conditions, size constraints and the energy efficiency ratio of typical metro train air conditioning is only 2.0~2.3. A refrigeration system numerical model verified by experimental data was developed in this paper, and analyzed the bad energy efficiency ratio caused by the drop of condensing air volume. Based on this, a new method using heat recovery from exhaust air was proposed. The simulation results indicated that the energy efficiency ratio of metro train air conditioning with exhaust air heat recovery can be greatly improved by 7.5% under rating condition, and the improvement could be greater at off-design conditions. Apart from this, the energy efficiency is insensitive to both the volume of exhaust air and the size of sub-cooler. The present results could be valuable to the optimization design of metro train air conditioning.关键词
列车空调机组/排风热回收/能效比/仿真分析Key words
Metro train air conditioning/Exhaust air heat recovery/Coefficient of performance/Numerical simulation引用本文复制引用
蔡思维,邵亮亮,张春路,李剑,宋文强..排风热回收对地铁空调机组性能提升的仿真分析[J].制冷技术,2016,36(2):52-56,5.
