Analysis and Simulation of an Absorption Cooling System Using a Latent Heat Storage Tank and a Tempering Valve

Energies

Jesús Cerezo¹  Antonio Rodríguez¹  RosenbergJ. Romero¹  Fernando Lara² 

[1] Centro de Investigación en Ingeniería y Ciencias Aplicadas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Cuernavaca 62209, Morelos, Mexico;Facultad de Ingeniería, Universidad Autónoma de Baja California, Blvd. Benito Juárez y Calle de la Normal s/n, Insurgentes Este, Mexicali 21280, Baja California, Mexico;

关键词: phase change material;    absorption cooling system;    parabolic trough collector;    tempering valve;    thermal energy storage;   

DOI  :  10.3390/en14051376

来源: DOAJ

【 摘 要 】

The energy consumption for space cooling is growing faster than for any other end-use in buildings, more than tripling between 1990 and 2016. Energy efficiency is an important topic in the drive to reduce the consumption of electricity, particularly in air conditioning. This paper presents a simulation of an absorption cooling system with a parabolic trough collector under dynamic conditions using TRaNsient SYstem Simulation (TRNSYS) software. The thermal analysis seeks to evaluate a storage tank at three different configurations: (1) sensible heat, (2) latent heat, and (3) latent heat incorporating a tempering valve. The latent heat storage tank is a rectangular heat exchanger using MgCl₂·6H₂O as the phase change material, programmed in EES software; in addition, water and synthetic organic fluid were analyzed as heating fluids. The process was analyzed while varying the solar collector area from 20 to 40 m² and the storage tank volume from 0.25 to 0.75 m³. The results showed that the solar collector of configuration 1 is unable to satisfy the energy demand. Configuration 2 can satisfy the demand with water and a storage tank volume above 0.50 m³ and 30 m², while configuration 3 can satisfy the demand above 0.50 m³ and 20 m² with water.

【 授权许可】

Unknown