Design and Fabrication of Single Effect Absorption Cooling System of 5.25kW Cooling Capacity for Domestic Use

2014 ◽  
Vol 592-594 ◽  
pp. 1864-1868
Author(s):  
V.Boopathi Raja ◽  
V. Shanmugam
Keyword(s):  
Heat Exchanger ◽  
Cooling System ◽  
Cooling Capacity ◽  
Floor Area ◽  
Absorption Cooling ◽  
Domestic Use ◽  
Single Effect ◽  
Absorption Cooling System

The aim of this work is to design and fabricate solar assisted single effect absorption cooling system of 5.25 kW cooling capacity to cool a room having floor area of 15m2. The design of the major components of the cooling system like generator, condenser, evaporator, absorber and solution heat exchanger are described in this paper.

Experimental Analysis of Newly Designed Solar Assisted Single Effect Absorption Cooling System of 5.25 kW Cooling Capacity for Domestic Use

2015 ◽  
Vol 787 ◽  
pp. 32-36 ◽  
Author(s):  
V.Boopathi Raja ◽  
V. Shanmugam
Keyword(s):  
Cooling System ◽  
Cooling Capacity ◽  
Hot Water ◽  
Operational Parameters ◽  
Water Storage Tank ◽  
Absorption Cooling ◽  
Domestic Use ◽  
Single Effect ◽  
Absorption Cooling System ◽  
Vapour Compression

Many research studies have been carried out to develop small capacity absorption cooling systems as an alternative to conventional vapour compression refrigeration (VCR) systems with respect to performance and economic aspects. The aim of this work is to design a solar assisted single effect absorption cooling system of 5.25 kW cooling capacity to cool a room having floor area of 15 m2. Based on the design, an experimental setup is constructed and operated by supplying heat to the generator using solar energy. The performance analysis of the cooling system is carried out by measuring the various operational parameters. The minimum cooling temperature of 16°C is observed in the evaporator and maximum COP of 0.9 is obtained when the hot water storage tank reaches 90°C. As per this new design, the operational cost is minimized and the COP obtained is slightly higher when compared to that of earlier similar works.

Evaluation of the cooling potential for a single effect absorption cooling system in the PR2 well of Cerritos Colorados geothermal field, Mexico

2020 ◽  
Vol 38 (6) ◽  
pp. 2521-2540
Author(s):  
Juliana Isabel Saucedo Velázquez ◽  
Wilfrido Rivera Gómez Franco ◽  
Efraín Gómez-Arias ◽  
Geydy Gutiérrez Urueta
Keyword(s):  
Cooling System ◽  
Geothermal Field ◽  
Cooling Systems ◽  
Absorption Cooling ◽  
Different Depths ◽  
Single Effect ◽  
Typical Day ◽  
Conventional Cooling ◽  
Conventional Systems ◽  
Absorption Cooling System

Conventional cooling systems consume a high percentage of the world’s total electricity generation. Because absorption cooling systems can be mainly operated with thermal energy, they can be used to reduce such percentage. In the present paper, an analysis is carried out to determine the cooling potential that can be obtained from a geothermal well in a location of Mexico by using a single-stage absorption cooling system. The analysis has been carried out taking into account the desired cooling temperature, the ambient temperature, and the temperatures at different depths of the wells for a typical day of every season of the year. The results showed that, for a fixed generation temperature, a maximum cooling potential as big as 71,594 GW, 70,649 GW, 71,164 GW, 70,859 GW could be obtained in Winter, Spring, Summer, and Autumn, respectively. Using the temperatures obtained from the well, for a fixed depth, the results show that higher values are obtained in spring and summer. From the analysis, it is clear that absorption systems operating with geothermal energy could be an excellent alternative to reduce the electricity consumed by conventional systems.

scholarly journals Thermodynamic Analysis of a Solar Combined Ejector Absorption Cooling System

2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Doniazed Sioud ◽  
Raoudha Garma ◽  
Ahmed Bellagi
Keyword(s):  
Cooling System ◽  
Lithium Bromide ◽  
Cooling Water ◽  
Double Effect ◽  
Cycle Performance ◽  
Working Fluid ◽  
Absorption Cooling ◽  
Single Effect ◽  
Absorption Cycle ◽  
Absorption Cooling System

The objective of this paper is to investigate theoretically a solar driven 60 kW absorption cooling system. The system is constituted of a combined ejector single-effect absorption cycle coupled with a linear Fresnel solar concentrator and using water/lithium bromide as working fluid. The combined ejector single-effect absorption cycle exhibits high performances, almost equal to that of double-effect absorption device. However, higher driving heat temperatures are required than in the case of conventional single-effect machines. A mathematical model is set up to analyze the optical performance of the linear Fresnel concentrator. Simulations are carried out to study the overall system performance COPsystem and the performances of the combined absorption machine COPcycle for generator driving temperatures and pressures in the ranges 180°C – 210°C and 198 kPa – 270 kPa, respectively. Further, the effect of operating parameters such as the cooling medium and chilled water temperatures is investigated. A maximum cycle performance of 1.03 is found for a generator pressure of 272 kPa and chilled and cooling water temperatures of 7°C and 25°C, respectively. A case study is investigated for a typical summer Tunisian day, from 8:00 to 18:00. The effect of ambient temperature and solar radiation on cycle and system performances is simulated. The optical performances of the concentrator are also analyzed. Simulation results show that between 11:00 and 14:00 the collector efficiency is 0.61 and that the COPcycle reaches values always higher than 0.9 and the COPsystem is larger than 0.55. Globally the performances of the investigated cycle are similar to those of double-effect conventional absorption system.

Configuration based modeling and performance analysis of single effect solar absorption cooling system in TRNSYS

2018 ◽  
Vol 157 ◽  
pp. 351-363 ◽  
Author(s):  
Muhammad Shoaib Ahmed Khan ◽  
Abdul Waheed Badar ◽  
Tariq Talha ◽  
Muhammad Wajahat Khan ◽  
Fahad Sarfraz Butt
Keyword(s):  
Performance Analysis ◽  
Cooling System ◽  
Solar Absorption ◽  
Absorption Cooling ◽  
Single Effect ◽  
And Performance ◽  
Solar Absorption Cooling ◽  
Absorption Cooling System

Experience with fully operational solar-driven 10-ton LiBr/H2O single-effect absorption cooling system in Thailand

2008 ◽  
Vol 33 (5) ◽  
pp. 943-949 ◽  
Author(s):  
A. Pongtornkulpanich ◽  
S. Thepa ◽  
M. Amornkitbamrung ◽  
C. Butcher
Keyword(s):  
Cooling System ◽  
Absorption Cooling ◽  
Single Effect ◽  
Absorption Cooling System

scholarly journals Performance of a Single Effect Solar Absorption Cooling System (Libr-H2O)

2015 ◽  
Vol 74 ◽  
pp. 130-138 ◽  
Author(s):  
O. Ketfi ◽  
M. Merzouk ◽  
N. Kasbadji Merzouk ◽  
S. El Metenani
Keyword(s):  
Cooling System ◽  
Solar Absorption ◽  
Absorption Cooling ◽  
Single Effect ◽  
Solar Absorption Cooling ◽  
Absorption Cooling System

scholarly journals Potential Study of Solar Thermal Cooling in Sub-Mediterranean Climate

2020 ◽  
Vol 10 (7) ◽  
pp. 2418 ◽  
Author(s):  
Mustafa Jaradat ◽  
Mohammad Al-Addous ◽  
Aiman Albatayneh ◽  
Zakariya Dalala ◽  
Nesrine Barbana
Keyword(s):  
Mediterranean Climate ◽  
Cooling System ◽  
Cooling Capacity ◽  
Payback Period ◽  
Solar Thermal ◽  
Levelized Cost Of Electricity ◽  
Absorption Cooling ◽  
Solar Thermal Cooling ◽  
Thermal Cooling ◽  
Absorption Cooling System

Air conditioning is becoming increasingly important in the energy supply of buildings worldwide. There has been a dramatic increase in energy requirements for cooling buildings in the Middle East and North Africa (MENA) region. This is before taking the effects of climate change into account, which will also entail a sharp increase in cooling requirements. This paper presents the potential of using a solar thermal absorption cooling system in Sub-Mediterranean Climate. Four sites in Jordan are now equipped with water-lithium bromide (H₂O-LiBr) absorption chillers with a total nominal capacity of 530 kW. The focus of the paper was on the pilot system at the German Jordanian University (GJU) campus with a cooling capacity of 160 kW. The system was designed and integrated in order to support two existing conventional compression chillers with a nominal cooling capacity of 700 kW. The system was economically evaluated based on the observed cooling capacity results with a Coefficient of Performance (COP) equals 0.32, and compared with the values observed for a COP of 0.79 which is claimed by the manufacturer. Several techniques were implemented to evaluate the overall economic viability in-depth such as present worth value, internal rate of return, payback period, and levelized cost of electricity. The aforementioned economic studies showed that the absorption cooling system is deemed not feasible for the observed COP of 0.32 over a lifespan of 25 years. The net present value was equal to −137,684 JD and a payback period of 44 years which exceeds the expected lifespan of the project. Even for an optimal operation of COP = 0.79, the discounted payback period was equal to 23 years and the Levelized Cost of Electricity (LCOE) was equal to 0.65 JD/kWh. The survey shows that there are several weaknesses for applying solar thermal cooling in developing countries such as the high cost of these systems and, more significantly, the lack of experience for such systems.

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