Experimental study of the thermal and energy conservation characteristics of combined phase change material (PCM) room in summer

被引:6
作者
Meng, Erlin [1 ]
Zhao, Junpeng [1 ]
Cai, Ruonan [1 ]
Wang, Chenyang [1 ]
Zhou, Bo [1 ]
Li, Jun [1 ]
机构
[1] Suzhou Univ Sci & Technol, Sch Environm Sci & Engn, Suzhou, Peoples R China
基金
中国国家自然科学基金;
关键词
Combined PCM room; Passive and active; Thermal characteristics; Energy consumption; NUMERICAL-SIMULATION; BUILDING ROOF; PERFORMANCE; WALLBOARD; WALL;
D O I
10.1016/j.est.2022.105406
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Combined phase change material room means to lay two different PCMs on building envelops of different orientation. The two PCMs are expected to phase change in summer and winter respectively. In this paper, one combined PCM room and one ordinary room with the same size were built. The thermal characteristics of the two rooms were tested in passive and active conditions. Three cases were designed for the experiment. Case 1 is passive condition. Case 2 is active condition with the air conditioner (AC) working only during the day. Case 3 is active condition with the air conditioner (AC) working only at night. For case 2 and case 3, the set temperature of the AC is 24 ?, 26 ? and 28 ? respectively. During the experiment, indoor air temperature, internal surface temperature, internal surface heat flow and power consumption of the AC were measured. Results showed that in case 1, the PCM room can decrease the indoor air temperature by 6.7 ? during the day. In case 2, when the set temperature of the AC is 26 ? and 24 ?, the PCM room can decrease the indoor air temperature by 0.7 ? and 1.4 ? on average. In case 3, the values are 1.9 ?, 4.5 ? and 5.4 ? respectively when the set temperature is 28 ?, 26 ? and 24 ?. When the set temperature of case 2 is 26 ? and 28 ?, the energy conservation rate is 1.5 % and 36 %, and when the set temperature of case 3 is 28 ?, the value is 1 %. This shows that the combined PCM room has great potential to improve the indoor thermal environment and save energy under both passive and active conditions.
引用
收藏
页数:12
相关论文
共 24 条
[1]  
Abouelkhayrat B., 2013, ENERGY POWER ENG, V5, P628
[2]   Selection of phase change material and establishment of thermophysical properties of phase change material integrated with roof of a building using Measure of Key Response index: Proposal of a new parameter [J].
Bhamare, Dnyandip K. ;
Rathod, Manish K. ;
Banerjee, Jyotirmay .
JOURNAL OF ENERGY STORAGE, 2020, 32
[3]   Novel concept of composite phase change material wall system for year-round thermal energy savings [J].
Diaconu, Bogdan M. ;
Cruceru, Mihai .
ENERGY AND BUILDINGS, 2010, 42 (10) :1759-1772
[4]   A numerical study of external building walls containing phase change materials (PCM) [J].
Izquierdo-Barrientos, M. A. ;
Belmonte, J. F. ;
Rodriguez-Sanchez, D. ;
Molina, A. E. ;
Almendros-Ibanez, J. A. .
APPLIED THERMAL ENGINEERING, 2012, 47 :73-85
[5]   Thermal analysis of a double layer phase change material floor [J].
Jin, Xing ;
Zhang, Xiaosong .
APPLIED THERMAL ENGINEERING, 2011, 31 (10) :1576-1581
[6]   Physical models to evaluate the performance of impure phase change material dispersed in building materials [J].
Khattari, Y. ;
El-Otmany, H. ;
El Rhafiki, T. ;
Kousksou, T. ;
Ahmed, A. ;
Ben Ghoulam, E. .
JOURNAL OF ENERGY STORAGE, 2020, 31
[7]   Study on the thermal performance of a new double layer PCM trombe wall with multiple phase change points [J].
Kong, Xiangfei ;
Li, Jinbo ;
Fan, Man ;
Li, Wei ;
Li, Han .
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2022, 240
[8]   Numerical study on the thermal performance of building wall and roof incorporating phase change material panel for passive cooling application [J].
Kong, Xiangfei ;
Lu, Shilei ;
Li, Yiran ;
Huang, Jingyu ;
Liu, Shangbao .
ENERGY AND BUILDINGS, 2014, 81 :404-415
[9]  
Laustsen M.J, 2008, Energy Efficiency Requirements in Building Codes, Energy Efficiency Policies for New Buildings
[10]  
Luo C., 2018, IEEE T NETW SCI ENG, P1