scholarly journals Design and Performance Study of a Hot Water Driven 5 TR Capacity Absorption Cooling System

Author(s):  
Anil Sharma ◽  
Bimal Kumar Mishra ◽  
Abhinav Dinesh ◽  
Ashok Misra
2006 ◽  
Vol 17 (3) ◽  
pp. 65-70 ◽  
Author(s):  
V Mittal ◽  
K S Kasana ◽  
N S Thakur

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.


2015 ◽  
Vol 787 ◽  
pp. 32-36 ◽  
Author(s):  
V.Boopathi Raja ◽  
V. Shanmugam

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.


2018 ◽  
Vol 157 ◽  
pp. 351-363 ◽  
Author(s):  
Muhammad Shoaib Ahmed Khan ◽  
Abdul Waheed Badar ◽  
Tariq Talha ◽  
Muhammad Wajahat Khan ◽  
Fahad Sarfraz Butt

Author(s):  
Sergio Lugo ◽  
Wilfrido Rivera

"The present work repots the modelling of a solar air conditioning pilot plant to be installed in the Centro de Tecnología Avanzada (CIATEQ) in the city of Queretaro, México. The modelling was carried out by using the software Transient System Simulation Tool-16 (TRNSYS- 16). The pilot plant mainly consists of an absorption cooling system, a solar collector’s field, a hot water storage tank, a cooling tower and an air handler. The office of the CIATEQ were first modelling without an air conditioning unit and then with the proposed solar air conditioning pilot plant. The results showed that without air conditioning, temperatures higher than 28 ºC can be reached between the 12:00 and the 19:00 hours during spring and summer, while with the proposed pilot plant temperatures not higher than 25 ºC can be obtained during the whole year during the working hours."


Author(s):  
Cenk Onan ◽  
Derya B. O¨zkan

In today’s society in which energy costs are high, the use of renewable energy sources has gained importance in cooling and heating systems. In recent years, solar cooling, which is a type of renewable energy source, is increasing rapidly in use in Europe. A solar assisted absorption cooling system was designed for acclimatizing villas in Mardin, Turkey, and the performance of the system under different temperatures was analyzed using Matlab. The cooling load of the villas was calculated assuming a cooling season of May 15 to September 15. The cooling capacity was calculated to be 106 kW. Changes in the coefficient of performance, the capacity of the hot water driven absorption cooling system and the exergy destruction values of the system according to our country’s meteorological data were calculated using Matlab. The amounts of inlet and outlet exergy were calculated separately for each component. Calculations were performed for two dead state temperatures: 25 °C and the environmental temperature, which is a more realistic approach. Therefore, the effect of varying the dead state temperature on the results was determined. It is observed that the greatest source of exergy destruction in the system was the solar collectors and the second greatest source of exergy destruction was the generator. The hourly distributions of exergy destruction values are given in a table. The effects of environmental temperature and solar insulation were stated for the optimization of energy and exergy in the combined system, which are planned to be established.


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