Investigation on Saturation Vapor Pressure of NH3-H2O-LiBr in Absorption Energy Storage System

被引：0

作者：

Li, Jitong ^{[1
]}

Wang, Gang ^{[1
,2
]}

Zhao, Yonghan ^{[1
]}

Cui, Xiaoyan ^{[1
]}

Cui, Haoqi ^{[1
]}

Xiong, Yaxuan ^{[1
]}

Zhang, Qunli ^{[1
]}

机构：

[1] Beijing Univ Civil Engn & Architecture, Sch Environm & Energy Applicat Engn, 1 Zhanlanguan Rd, Beijing 100044, Peoples R China

[2] Jiangsu Baixue Elect Appliances Co Ltd, Chief Engineers Off, Suzhou, Peoples R China

来源：

HEAT TRANSFER ENGINEERING | 2024年

基金：

中国国家自然科学基金;

关键词：

LITHIUM BROMIDE SYSTEM; REFRIGERATION SYSTEMS; PHASE-EQUILIBRIA; CHLORIDE SYSTEM; WORKING FLUIDS; AMMONIA-WATER; HEAT-TRANSFER; PERFORMANCE; NITRATE;

D O I：

10.1080/01457632.2024.2407672

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Energy storage technology applied between building energy and renewable energy exhibits inherent characteristics of continuity, stability, and high efficiency of energy density. To improve the energy storage density and efficiency of solution absorption energy storage system, an innovative method is proposed by adding ammonia to regulate the saturated vapor pressure of Lithium Bromide solution, which is used as the energy storage working fluid for the absorption energy storage system. Based on the static method principle of vapor-liquid equilibrium of multiple working fluids, a testing platform for the vapor pressure of multiple working fluids was built. The pressure of the Lithium Bromide solution and the Lithium Bromide solution added Ammonia with a concentration of 58% were measured. The results show that the pressure of the Lithium Bromide solution added Ammonia is 2-5 times higher than that of the Lithium Bromide solution. The maximum relative deviations between the calculated value of the models fitted by Antoine equation and Peng Robinson state equation and the experimental value are 4.65% and 10.88%, respectively. That indicates that the model fitted by Antoine equation is more precise for the calculation of the equilibrium pressure of the ternary working fluid. The equilibrium pressure of the Lithium Bromide solution added Ammonia is predicted by the model fitted by the Antoine equation.

引用

页数：10

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