串—并联干式风机盘管加独立新风空调系统性能的研究Research on Performance of Series or Parallel Dry-coil and Dedicated Outdoor Ventilation Air-conditioning System
陈华,段鼎立,吴爱侠
CHEN Hua,DUAN Ding-li,WU Ai-xia
摘要(Abstract):
对串、并联干式风机盘管加独立新风空调系统进行试验研究,通过改变室外工况及室内负荷显热比探究串联和并联系统运行特性以及对室内温湿度的影响。结果表明:对串联系统而言,显热比SHR=0.85时,该空调系统对室内温度及相对湿度均控制在舒适性范围,且维持稳定;SHR=0.75时,新风机组的除湿能力无法满足室内除湿要求。对并联系统而言,室内显热比的改变对室内温湿度的影响较大;负荷率对室内温湿度的影响不大,分别相差约0.2~0.4℃、1%~2%;且显热比对室内温湿度的影响随着负荷率的增加而增大。
To research on performance of series or parallel dry-coil and dedicated outdoor ventilation air-conditioning system,by changing the working condition of outdoor and indoor sensible heat load ratio to explore the performance of series or parallel system and the indoor temperature and humidity. The experimental results :about series system,indicated that when indoor SHR was 0.85,air-conditioning system could maintain the indoor temperature and relative humidity in the range of comfort,and stability;as the SHR was 0.75,fresh air unit's couldn't satisfy the requirement of indoor air dehumidification. Study results about parallel system show that the effects of indoor SHR on indoor air was big;theeffects of indoor load ratio on indoor air was little,is about 0.2~0.4 ℃、1%~2%;the SHR impact on the indoor temperature and relative humidity enhanced when indoor load increased.
关键词(KeyWords):
干式盘管;独立新风;串联;并联
dry coil;dedicated outdoor air ventilation;series;parallel
基金项目(Foundation):
作者(Author):
陈华,段鼎立,吴爱侠
CHEN Hua,DUAN Ding-li,WU Ai-xia
参考文献(References):
- [1]Krirkpatrick A T,Elleson J S,著.汪训昌,译.低温送风系统设计指南[M].北京:中国建筑工业出版社,2002.
- [2]Fanger PO.Human requirements in future air-conditioned environments[J].International Journal of Refrigeration,2001,24(2):148-153.
- [3]张秀平,潘云刚,田旭东,等.标准风机盘管用于温湿度独立控制系统的适应性研究[J].流体机械,2009,37(1):72-76.
- [4]张秀平,徐北琼,田旭东,等.《干式风机盘管机组》标准中名义工况温度条件和产品基本规格的研究[J].流体机械,2011,39(8):59-63.
- [5]裴清清,周智明,陈煜健,等.干工况风机盘管机组性能实验研究[J].暖通空调,2009,39(7):1-4.
- [6]胡韩莹,巨小平,林州强,等.外盘管空气源热泵热水器不同工况下的试验研究综述[J].流体机械,2012,40(12):58-61.
- [7]刘泽勤,苏云,郭宪民.风机盘管来流场均匀化数值模拟[J].流体机械,2013,41(4):54-57.
- [8]陈华,夏佐强,吴爱侠.干盘管系统冷冻水流量调节试验研究[J].流体机械,2014,42(3):1-5.
- [9]吴爱侠,陈华,张瑜,等.独立新风加干式风机盘管空调系统用于高温高湿地区的适应性分析[J].建筑科学,2012(10):73-77.