Experimental study on thermal storage performance of binary mixtures of fatty acids

International Conference on Energy Engineering and Environmental Protection 2017

能源学;生态环境科学

Yan, Quanying^1 ; Zhang, Jing^1 ; Liu, Chao^1 ; Liu, Sha^1 ; Sun, Xiangyu^1

College of Environmental and Energy Engineering, Beijing University of Architecture, Heating, Gas Supply, Ventilation and Air Conditioning Engineering, Beijing

100044, China^1

关键词: Fatty acid mixture;    Myristic acid;    Phase Change;    Phase change latent heat;    Phase change temperature;    Phase change temperature and latent heats;    Single components;    Thermal storage performance;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/121/2/022028/pdf
DOI  :  10.1088/1755-1315/121/2/022028

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

We selected five kinds of fatty acids including the capric acid, stearic acid, lauric acid, palmitic acid and myristic acid and mixed them to prepare10 kinds of binary mixtures of fatty acids according to the predetermined proportion,tested the phase change temperature and latent heat of mixtures by differential scanning calorimetry(DSC). In order to find the fatty acid mixture which has suitable phase change temperature, the larger phase change latent heat and can be used for phase change wall. The results showed that the phase change temperature and latent heats of the binary mixtures of fatty acids decreased compared with the single component;The phase change temperature of the binary mixtures of fatty acids containing capric acid were lower, the range was roughly 20∼30°C,and latent heat is large,which are ideal phase change materials for phase change wall energy storage;The phase change temperature of the binary mixtures consisting of other fatty acids were still high,didn't meet the temperature requirements of the wall energy storage.