A simulation study of performance evaluation of single-stage absorption refrigeration system using conventional working fluids and alternatives

Karamangil, M. İhsan; Coşkun, Salih; Kaynaklı, Ömer; Yamankaradeni̇z, Nurettin

doi:10.1016/j.rser.2010.04.008

Cited by 104 publications

(41 citation statements)

References 56 publications

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“…F R is an important design and optimizing parameter since it's directly related to the size and cost of the generator, absorber, heat exchangers and pump [10]. We can see that when the generator temperature increases, concentration of the strong solution increases, hence Fr decreases as can be seen in figure 3.…”

Section: Cop Function Of Tgmentioning

confidence: 94%

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

Ketfi

Merzouk

et al. 2015

Energy Procedia

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Fossil fuels are on the verge of depletion, and the world energy consumption is in constant progression, resulting in very serious concerns about environmental issues. Mechanical refrigeration based on vapor compression principle uses high grade electrical energy, and refrigerant fluid with a global worming and ozone depletion potentials.Absorption machines using solar thermal energy are excellent alternatives to mechanical refrigeration. Absorption cooling systems are mature technologies that proved their abilities to provide clean cooling with the use of low grade solar and waste heat. In this paper we presented a modeling and simulation study of a 70 kW Yazaki absorption cooling machine working with water-lithium bromide mixture. The influence of different parameters (Heat exchanger efficiency, Generator, absorber and condenser temperatures) on the system performance is showed.

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Section: Cop Function Of Tgmentioning

confidence: 94%

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

Ketfi

Merzouk

et al. 2015

Energy Procedia

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“…Therefore, the circulation ratio, which is defined as m m m weak weak strong − ( ) , is extremely high at a relatively low generating temperature but tends to decrease drastically with an increase in the generating temperature. The circulation ratio is a significant design and optimizing factor as it directly influences the size and cost of the generator, absorber, solution heat exchanger, and pump (Karamangil et al, 2010). As shown in Fig.…”

Section: 2mentioning

confidence: 99%

Novel absorption refrigeration system with a hollow fiber membrane-based generator

Hihara

Dang

2016

International Journal of Refrigeration

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“…Circulation ratios in H 2 O + LiBr and NH 3 + H 2 O systems usually are smaller, with typical values being around = 10 [25,26]. ILs circulation ratios compared to conventional absorption refrigerators are high.…”

Section: A Review Of Ils As Working Fluidsmentioning

confidence: 99%

Overview of Ionic Liquids Used as Working Fluids in Absorption Cycles

Khamooshi

Parham

Atikol

2013

Advances in Mechanical Engineering

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The cycle performance of refrigeration cycles depends not only on their configuration, but also on thermodynamic properties of working pairs regularly composed of refrigerant and absorbent. The commonly used working pairs in absorption cycles are aqueous solutions of either lithium bromide water or ammonia water. However, corrosion, crystallization, high working pressure, and toxicity are their major disadvantages in industrial applications. Therefore, seeking more advantageous working pairs with good thermal stability, with minimum corrosion, and without crystallization has become the research focus in the past two decades. Ionic liquids (ILs) are room-temperature melting salts that can remain in the liquid state at near or below room temperature. ILs have attracted considerable attention due to their unique properties, such as negligible vapor pressure, nonflammability, thermal stability, good solubility, low melting points, and staying in the liquid state over a wide temperature range from room temperature to about 300 ∘ C. The previously mentioned highly favorable properties of ILs motivated us for carrying out the present research and reviewing the available ILs found in the literature as the working fluids of absorption cycles. Absorption cycles contain absorption heat pumps, absorption chillers, and absorption transformers.

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A simulation study of performance evaluation of single-stage absorption refrigeration system using conventional working fluids and alternatives

Cited by 104 publications

References 56 publications

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

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

Novel absorption refrigeration system with a hollow fiber membrane-based generator

Overview of Ionic Liquids Used as Working Fluids in Absorption Cycles

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