A year-round dynamic simulation of a solar-driven ejector refrigeration system with iso-butane as a refrigerant

Pridasawas, Wimolsiri; Lundqvist, Per

doi:10.1016/j.ijrefrig.2006.11.012

Cited by 82 publications

(27 citation statements)

References 19 publications

(21 reference statements)

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“…Pridasawas and Lundqvist [197] , during business hours, the average COP and solar fraction was 0.48. Compared with conventional compressor technologies, the solar-powered ERS can save more than 75% of electric energy.…”

Section: Soers With Storage Systemmentioning

confidence: 86%

“…However, they belong to A2L safety group; thus, they will require changes to equipment safety standards. In addition to the new halocarbon compounds, the low environment impact of HCs make them possible alternatives [98,144,146,149,156,157,171,[190][191][192][193][194][195][196][197][198][199][200]. Unfortunately, HC refrigerants are highly flammable, which may limit their usage [201].…”

Section: Working Fluids In Ejector Refrigerationmentioning

confidence: 99%

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Ejector refrigeration: A comprehensive review

Besagni

Mereu

Inzoli

2016

Renewable and Sustainable Energy Reviews

407

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a b s t r a c tThe increasing need for thermal comfort has led to a rapid increase in the use of cooling systems and, consequently, electricity demand for air-conditioning systems in buildings. Heat-driven ejector refrigeration systems appear to be a promising alternative to the traditional compressor-based refrigeration technologies for energy consumption reduction. This paper presents a comprehensive literature review on ejector refrigeration systems and working fluids. It deeply analyzes ejector technology and behavior, refrigerant properties and their influence over ejector performance and all of the ejector refrigeration technologies, with a focus on past, present and future trends. The review is structured in four parts. In the first part, ejector technology is described. In the second part, a detailed description of the refrigerant properties and their influence over ejector performance is presented. In the third part, a review focused on the main jet refrigeration cycles is proposed, and the ejector refrigeration systems are reported and categorized. Finally, an overview over all ejector technologies, the relationship among the working fluids and the ejector performance, with a focus on past, present and future trends, is presented.

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Section: Soers With Storage Systemmentioning

confidence: 86%

Section: Working Fluids In Ejector Refrigerationmentioning

confidence: 99%

Ejector refrigeration: A comprehensive review

Besagni

Mereu

Inzoli

2016

Renewable and Sustainable Energy Reviews

407

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“…EES is a numerical solver, and it uses an iterative procedure to solve the equations. The convergence of the numerical solution is checked by using the following two variables: (1) `Relative equation publications which have previously used EES for thermodynamic analysis [15,16,17,18].…”

Section: Solution Techniquementioning

confidence: 99%

Thermodynamic analysis of humidification dehumidification desalination cycles

Narayan

Sharqawy

Lienhard

et al. 2010

Desalination and Water Treatment

311

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Humidification dehumidification desalination (HDH) is a promising technology for small-scale water production applications. There are several embodiments of this technology which have been investigated by researchers around the world. However, from a previous literature review [1], we have found no study which carried out a detailed thermodynamic analysis in order to improve and/or optimize the system performance. In this paper, we analyze the thermodynamic performance of various HDH cycles by way of a theoretical cycle analysis. In addition, we propose novel high-performance variations on those cycles. These high-performance cycles include multi-extraction, multi-pressure and thermal vapor compression cycles. It is predicted that the systems based on these novel cycles will have gained-output ratio in excess of 7 and will outperform existing HDH systems.

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“…The refrigeration rate and the COP were also found to increase with a corresponding increase in evaporator temperature. Also some other researchers studied HCs and their mixtures for refrigeration systems [13][14][15][16]. However, most works have been concentrated on the HC mixtures.…”

Section: Literature Overviewmentioning

confidence: 99%

Performance and exergetic analysis of vapor compression refrigeration system with an internal heat exchanger using a hydrocarbon, isobutane (R600a)

Kabul

Kızılkan

Yakut

2008

Int. J. Energy Res.

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SUMMARYHydrocarbons (HCs) are excellent refrigerants in many ways such as energy efficiency, critical point, solubility, transport and heat transfer properties, but they are also flammable, which causes the need for changes in standards, production and product. There are increasing number of scientists and engineers who believe that an alternative solution, which has been overlooked, may be provided by using HCs. The main objective of this study is to perform energy and exergy analyses for a vapor compression refrigeration system with an internal heat exchanger using a HC, isobutene (R600a). For a refrigeration capacity of 1 kW and cold chamber temperature of 08C, energy and exergy balances are taken into account to determine the performance of the refrigeration system. Energy and exergy fluxes are determined, and irreversibility rates are calculated for every component of the system. It is seen that the compressor has the highest irreversibility rate, and the heat exchanger has the lowest. Also from the result of the analysis, it is found that condenser and evaporator temperatures have strong effects on energetic and exergetic performances of the system such as coefficient of performance (COP), efficiency ratio (t), exergetic efficiency (x) and irreversibility rate.

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A year-round dynamic simulation of a solar-driven ejector refrigeration system with iso-butane as a refrigerant

Cited by 82 publications

References 19 publications

Ejector refrigeration: A comprehensive review

Ejector refrigeration: A comprehensive review

Thermodynamic analysis of humidification dehumidification desalination cycles

Performance and exergetic analysis of vapor compression refrigeration system with an internal heat exchanger using a hydrocarbon, isobutane (R600a)

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