利用综合管廊排风的余热供冷系统性能分析
Performance Analysis of Waste Heat Cooling System Using Exhaust of Utility Tunnel
邰传民 1田贯三 1雷文君1
作者信息
- 1. 山东建筑大学热能工程学院,山东济南 250101
- 折叠
摘要
提出一种利用综合管廊排风的余热供冷系统,对余热供冷系统的可行性、制冷性能进行分析.室外空气流经综合管廊通风区间后,排风温度有所降低.将综合管廊低温排风代替室外空气作为风冷热泵机组的冷源,可有效提高机组制冷能效,余热供冷系统可行.与传统风冷热泵相比,余热供冷系统制冷性能系数更高,波动更小.测试时间余热供冷系统最大节电率达11.9％,平均节电率约5.9％.
Abstract
A waste heat cooling system using the exhaust of utility tunnel is proposed.The feasibility and refrigeration performance of the waste heat cooling system are analyzed.After the outdoor air flows through the ventilation section of the utility tunnel,the exhaust temperature is reduced.Replacing outdoor air with low-temperature exhaust from the utility tunnel as the cold source for air-cooled heat pump units can ef-fectively improve the refrigeration efficiency of the u-nits,and the waste heat cooling system is feasible.Compared with traditional air-cooled heat pumps,the waste heat cooling system has higher refrigeration per-formance coefficient and smaller fluctuations.During the testing period,the maximum power saving rate of the waste heat cooling system reaches 11.9％,and the average power saving rate is about 5.9％.
关键词
综合管廊/低温排风/风冷热泵机组/制冷性能Key words
utility tunnel/low-temperature ex-haust/air-cooled heat pump unit/refrigeration perform-ance引用本文复制引用
基金项目
山东省高等学校青创人才引育计划(鲁教[2021]51号)
出版年
2024
国家科技期刊平台
NSTL
万方数据