scholarly journals Using solar collector unit in a methanol-water vapor absorption cooling system under iraqi environmental conditions

2020 ◽  
Vol 22 ◽  
pp. 100749
Author(s):  
Nabeel A. Ghyadh ◽  
Salman H. Hammadi ◽  
Haroun A.K. Shahad
Keyword(s):  
Water Vapor ◽  
Environmental Conditions ◽  
Solar Collector ◽  
Cooling System ◽  
Water Vapor Absorption ◽  
Absorption Cooling ◽  
Vapor Absorption ◽  
Absorption Cooling System

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

Energies ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1376
Author(s):  
Jesús Cerezo ◽  
Fernando Lara ◽  
Rosenberg J. Romero ◽  
Antonio Rodríguez
Keyword(s):  
Latent Heat ◽  
Solar Collector ◽  
Energy Demand ◽  
Storage Tank ◽  
Heat Storage ◽  
Cooling System ◽  
Latent Heat Storage ◽  
Absorption Cooling ◽  
Transient System ◽  
Absorption Cooling System

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.

Design of a Flat Plate Solar Collector for Absorption-Cooling Applications in the Caribbean

Solar Energy ◽  
2004 ◽  
Author(s):  
Luis H. Alva Solari ◽  
Jorge E. Gonza´lez Cruz ◽  
Ming Yei
Keyword(s):  
Flat Plate ◽  
Solar Collector ◽  
Design Methodology ◽  
High Efficiency ◽  
Cooling System ◽  
Optimum Thickness ◽  
Absorption Cooling ◽  
The Caribbean ◽  
Flat Plate Solar Collector ◽  
Absorption Cooling System

The present work deals with the design methodology of a high efficiency flat plate solar collector to be used in absorption cooling system and for climates like Puerto Rico and the Caribbean. Specialized software was used to simulate the thermal behavior of the solar collector and the mechanical stresses. Results such as the optimum thickness of insulation and spacing between the glass and the absorbing surface are given.

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