scholarly journals Evaluation of using solar ammonia absorption cooling system for major cities of the Middle East

2018 ◽  
Vol 36 (3) ◽  
pp. 840-846
Author(s):  
Tohid Adibi
Keyword(s):  
Middle East ◽  
Cooling System ◽  
Absorption Cooling ◽  
Ammonia Absorption ◽  
Absorption Cooling System

Design and Construction of an Air Cooled Ammonia Absorber

2009 ◽  
Vol 131 (2) ◽  
Author(s):  
Nicolás Velázquez ◽  
Daniel Sauceda ◽  
Margarito Quintero-Núñez ◽  
Roberto Best
Keyword(s):  
Cooling System ◽  
Operating Conditions ◽  
Array Type ◽  
Finned Tubes ◽  
Advantages And Disadvantages ◽  
Operational Design ◽  
Absorption Cooling ◽  
Solar Generator ◽  
Ammonia Absorption ◽  
Absorption Cooling System

This paper presents the design criteria, methodology. and results of the basic and detailed engineering for a descending film ammonia absorber using air cooled finned tubes, which is part of an advanced absorption cooling system (solar generator absorber heat exchange cycle). The design consists in determining all the construction parameters for the air cooled ammonia absorption unit, starting with the operating conditions defined by a thermodynamical simulation of the process considering both physical and operational design restrictions. The chosen option was based on a comparison between the advantages and disadvantages of each possible array, type, and geometry. After performing the operational simulation, thermal and mechanical designs, and the consistency analysis, it was found that an absorption unit using 29 5/8 NPT 14 (BWG) steel carbon ASTM A-179 tubes, with pure SB-234 aluminum fins was the best option. The tubes are arranged in an equilateral triangle fashion, with crossed air flow cooling.

scholarly journals Modelling and simulation of a solar absorption cooling system for India

2006 ◽  
Vol 17 (3) ◽  
pp. 65-70 ◽  
Author(s):  
V Mittal ◽  
K S Kasana ◽  
N S Thakur
Keyword(s):  
Surface Area ◽  
Cooling System ◽  
Hot Water ◽  
Coefficient Of Performance ◽  
Reference Temperature ◽  
Inlet Temperature ◽  
Solar Absorption ◽  
Absorption Cooling ◽  
Solar Absorption Cooling ◽  
Absorption Cooling System

This paper presents modelling and simulation of a solar absorption cooling system. In this paper, the modelling of a solar-powered, single stage, absorption cooling system, using a flat plate collector and water–lithium bromide solution, is done. A computer program has been developed for the absorption system to simulate various cycle configurations with the help of various weather data for the village Bahal, District Bhiwani, Haryana, India. The effects of hot water inlet temperatures on the coefficient of performance (COP) and the surface area of the absorption cooling component are studied. The hot water inlet temperature is found to affect the surface area of some of the system components. Moreover the effect of the reference temperature which is the minimum allowable hot water inlet temperature on the fraction of total load met by non-purchased energy (FNP) and coefficient of performance (COP) is studied and it is found that high reference temperature increases the system COP and decreases the surface area of system components but lower reference temperature gives better results for FNP than high reference temperatures.

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