Journal of Refrigeration, Air conditioning, Heating and ventilation
Volume 1, Issue 1 (2014)
Published
Table of contents
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Cascade Refrigeration System with Internal Heat Exchanger: Suitable Natural Refrigerant Pair Selection
Abstract: In this study, thermodynamic analyses and optimization of various natural fluids as refrigerants in cascade system with internal heat exchanger have been done to get the suitable pair in a wide range of temperatures based on best system performance (maximum COP) as well as on operating characteristics. Out of the 56 possible combinations of high and low temperature fluids with 8 natural refrigerants (ammonia, carbon dioxide, propane, propylene, n-butane, isobutane, …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 1, Issue 1, 2014 · pp. 1–8 Read article
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Investigation of Solar Cooling Systems based on Small-Scale Sorption Heat Pumps
Abstract: This paper presents the development and investigation of solar cooling systems based on small-scale sorption heat pumps and chillers, respectively. Ammonia or water absorption chiller with a cooling capacity of 12 kW, a 17.5 kW water/lithium bromide absorber, the chilled WFC18 and two water or silica-gel adsorption chillers with cooling capacities of 7.5 and 15 kW, all single effect, are specified as core components of solar cooling systems. Up to …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 1, Issue 1, 2014 · pp. 18–21 Read article
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Performance Evaluation of Thermoacoustic Refrigeration System
Abstract: Today cooling technologies are going through a transformation phase. The advent of ozone layer depletion and global warming caused by the use of synthetic refrigerants has necessitated a search for alternative cooling technologies. Out of the several technologies which are emerging as alternatives, one technology that can provide cost effective refrigeration without using any of the environment degrading refrigerants is the thermoacoustic refrigeration system. Ideally, this device can be powered …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 1, Issue 1, 2014 · pp. 22–29 Read article
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Thermodynamic Analysis of an Adsorption Refrigeration System
Abstract: In this paper, thermodynamics analysis of an adsorption refrigeration pair (activated carbon and methanol) at adsorption equilibrium conditions has been proposed. Similar analyses have been done by different scientists for different combinations of adsorbent-adsorbate pairs. Adsorption refrigeration processes normally occurs in physical adsorption condition and activated carbon molecules being non-polar in nature, micropores approach of adsorption (Polanyi’s micropores theory and D-A equation) has been followed here. Analysis of the adsorption …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 1, Issue 1, 2014 · pp. 30–37 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