制冷学报2024，Vol.45Issue(3)：112-119,8.DOI:10.3969/j.issn.0253-4339.2024.01.112
再热除湿单元式空调机的设计改进及实验研究
Improved Design and Experimental Investigation of a Unitary Dehumidification Unit with Hot Gas Reheat
解云鹏 1时竞竞2
作者信息
- 1. 特灵空调系统(中国)有限公司 上海 200051||苏州大学电子信息学院 苏州 215031
- 2. 特灵空调系统(中国)有限公司 上海 200051||上海理工大学能源与动力工程学院 上海 200093
- 折叠
摘要
Abstract
To deliver comfortable conditioned air by reducing humidity levels while enhancing comfort levels in an air space under varied load conditions,an improved design for fully modulating dehumidification with a hot gas reheat system was developed.By managing the charge balance between the cooling and reheat modes,the modulation operating map for the reheat opening was expanded.Different microchannel heat exchanger(MCHE)reheat coil patterns and solutions were analyzed.The test results showed that an air-resourced unitary unit equipped with this novel MCHE reheat system solution improved the balance between the refrigerant charge requirements and the cooling and reheat modes.Under rating conditions,the energy efficiency ratio(EER)in the reheat mode increased by 17％,and water condensate removal through dehumidification was enhanced by 6％.The modulating valve reheat port opening range could be increased from a baseline of 20％-70％to 15％-85％.For the rated reheat dehumidification condition,the reheat temperature rise modulating range increased from 8.3-14.4℃ to 6.1-19.4℃.This innovative solution was proven to achieve a wider adjustable operating map that improved dehumidification capacity and power conservation.关键词
再热除湿/制冷剂管理/单元式空调机/可调节再热/微通道再热盘管Key words
dehumidification with hot gas reheat/refrigerant management/unitary air conditioner/modulating reheat/microchannel reheat coil分类
通用工业技术引用本文复制引用
解云鹏,时竞竞..再热除湿单元式空调机的设计改进及实验研究[J].制冷学报,2024,45(3):112-119,8.
