摘要
基于一维稳态传热,运用CFD软件对添加相变储能材料夹层CaCl 2 6H 2O的玻璃窗(以下简称双层玻璃相变窗)与单层玻璃窗、双层玻璃中空窗进行了空调房间能耗对比的数值仿真,其中使用焓法模型来求解双层玻璃相变窗中相变材料的传热特性。通过对3种玻璃窗的传热特性比较分析,得出了双层玻璃相变窗具有5 h温度延迟时间,1.36%的温度衰减因子,63.63%的节能率,在调节室内空调负荷以及室温的稳定控制方面具有优良的作用。
Based on the one-dimensional steady-state heat transfer,the numerical simulation of energy consumption in an air-conditioned room was carried out by using CFD tool for windows with PCM-filled glass window,single-glazed window and double-glazed hollow window.The enthalpy model is used to solve the heat transfer characteristics of phase change materials in PCM-filled glass window.Through the comparative analysis of the heat transfer characteristics of the three kinds of glass windows,it is proved that the PCM-filled glass window has 5 h temperature delay time,1.36%temperature attenuation factor and 63.63%energy saving rate.It has a good effect in adjusting the load of indoor air conditioning and the stability control of room temperature.
作者
李根
刘益才
王晓倩
化豪爽
马颖
Li Gen;Liu Yicai;Wang Xiaoqian;Hua Haoshuang;Ma Ying(Institute of Refrigeration and Cryogenics,School of Energy Science and Engineering,Central South University,Changsha 410083,China)
出处
《低温工程》
CAS
CSCD
北大核心
2019年第6期40-44,67,共6页
Cryogenics
基金
国家自然科学基金资助项目(51776226)
中南大学研究生自主探索创新项目资金资助(2019zzts532)
中南大学研究生自主探索创新项目资金资助(2019zzts528)
关键词
双层玻璃相变窗
数值模拟
建筑能耗
节能指标
PCM-filled glass window
numerical simulation
building energy consumption
energy-saving indicators
