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8 articles for “vapour-absorption refrigeration”
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Thermodynamic Analysis of Single Effect, Double Effect and Multi Effect LiBr/H2O Vapour Absorption Refrigeration Cycle
Abstract: Abstract Energy is most important parameter in any industry. If energy is not saved, it would go waste. Vapour absorption refrigeration system is the best solution for waste heat utilization. The vapour absorption cycle has low COP compared to vapour compression cycle. So, study of thermodynamic analysis on cycle is required. In this study, COP and heat required for different cycles is compared. The COP of single effect, double effect …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 4, Issue 1, 2017 · pp. 43–55 Read article
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Performances of NH3-H2O Vapour Absorption Refrigeration Cycles
Abstract: To achieve vital enhancements on micro-scale to buildings, cooling, heating and power systems for residential and light-weight industrial buildings, absorption cooling technology gift a chance. Their resultant effects are effective, energy economical and economical recent developments in. This study thus contributes a vital information and methodology within the development, fabrication and application of an absorption icebox as a higher various to the normally used mechanical device refrigerators. 2 fluid gas …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 6, Issue 1, 2019 · pp. 9–13 Read article
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Energy and Exergy Analysis of Ammonia Water Operated Vapour Absorption Refrigeration System Using Artificial Neural Network Approach
Abstract: In this study, energy and exergy analysis have been performed of the ammonia-water operated vapour absorption refrigeration (VAR) system. Authors have trained artificial neural network (ANN) for predicting thermodynamic properties (specific enthalpy and specific entropy) of working fluid (ammonia-water). Authors have achieved coefficient of multiple determination (R2) value 0.9999 and the root mean square error (RMSE) value 0.00211 for input data set of saturated liquid and R2 value 0.999999 and …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 2, Issue 1, 2015 · pp. 7–20 Read article
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Evaluation and Optimization of an Aqua-Ammonia Vapor-Absorption Refrigeration System
Abstract: The process parameters of ammonia-water absorption system were optimized in terms of temperatures of generator and condenser and heat ratios of generator-to-condenser and generator-to-absorber. The iteration method was used to get the variation in generator and condenser temperatures with coefficient of performance (COP) for the fixed evaporator temperature. The sizing of generator, absorber and condenser was found from the variation of heat ratios of generator-to-condenser and generator-to-absorber for the fixed …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 1, Issue 1, 2014 · pp. 9–17 Read article
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Waste Heat Driven Hybrid Refrigeration System: A Review
Abstract: The objective of this paper is to describe a newly-developed hybrid refrigeration system .This hybrid refrigeration system , combination of a vapor compression refrigeration system driven by the high grade electrical energy and heat driven an absorption refrigeration system .Absorption system activated by waste heat available from the condenser of vapour compression system to produce the required necessary temperature in generator to vaporize refrigerant. However an electrical heater in the …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 7, Issue 2, 2020 · pp. 49–57 Read article
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Analytical Design of 1 kW Capacity Lithium Bromide/Water Absorption Refrigeration System
Abstract: AbstractIn current era, the energy scarcity is the key concern. In this context, new alternative environment-friendly energy resources have to be explored. The researchers are focusing more on effective and efficient use of energy. The difference in demand and production of energy opens a new arena of heat recovery systems. Vapour absorption refrigeration systems (VARS) are one of the prominent heat recovery systems powered by heat, and can be powered …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 8, Issue 3, 2017 · pp. 36–49 Read article
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Heat Transfer in Single Effect Solar Assisted LiBr-H2O Absorption Refrigeration Cycle
Abstract: This paper describes the heat transfer model of LiBr-H2O vapour absorption cooling system implemented in engineering equation solver (EES). The detailed first law analysis of the system is presented. Effects of operating temperature and pressure on the heat load in various components, coefficient of performance (COP), and circulation ratio of the system have been carried out. Impact of solution heat exchanger effectiveness on system performance is also studied. The study …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 7, Issue 2, 2016 · pp. 1–11 Read article
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Theoretical Thermodynamic Investigation of Double Effect LiBr-H2O Vapour Absorption System Driven by Exhaust Gases of I.C. Engine and Simulated by EES Software
Abstract: Abstract This work presents a study of a Lithium Bromide-Water vapour absorption system used for automobile air conditioning system, this system using the exhaust waste heat of I.C. Engine. The effect of various parameters on coefficient of performance of Li-Br water vapour discussed. This study also illustrates various advantages of using VAS. The main purpose of this investigation is to explore the feasibility of using waste low grade energy driven …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 4, Issue 2, 2017 · pp. 38–46 Read article