Performance analysis of R1234yf/ionic liquid working fluids for single-effect and compression-assisted absorption refrigeration systems

Sun, Yanjun; Di, Gaolei; Wang, Jian; Wang, Xiaopo; Wu, Wei

doi:10.1016/j.ijrefrig.2019.10.007

Cited by 54 publications

(11 citation statements)

References 27 publications

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“…Furthermore, recent research considered hybrid techniques to improve the performance of IL-assisted absorption cycles. ,− For instance, Chug et al proposed a membrane-based absorption cycle using ILs as absorbents and demonstrated it through an experimental study for water heating. It paves a path for a compact and efficient absorption system for residential-scale applications.…”

Section: Heat Transfer and Storagementioning

confidence: 99%

Energy Applications of Ionic Liquids: Recent Developments and Future Prospects

Zhou,

Gui,

Sun

et al. 2023

Chem. Rev.

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Ionic liquids (ILs) consisting entirely of ions exhibit many fascinating and tunable properties, making them promising functional materials for a large number of energy-related applications. For example, ILs have been employed as electrolytes for electrochemical energy storage and conversion, as heat transfer fluids and phase-change materials for thermal energy transfer and storage, as solvents and/or catalysts for CO2 capture, CO2 conversion, biomass treatment and biofuel extraction, and as high-energy propellants for aerospace applications. This paper provides an extensive overview on the various energy applications of ILs and offers some thinking and viewpoints on the current challenges and emerging opportunities in each area. The basic fundamentals (structures and properties) of ILs are first introduced. Then, motivations and successful applications of ILs in the energy field are concisely outlined. Later, a detailed review of recent representative works in each area is provided. For each application, the role of ILs and their associated benefits are elaborated. Research trends and insights into the selection of ILs to achieve improved performance are analyzed as well. Challenges and future opportunities are pointed out before the paper is concluded.

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Section: Heat Transfer and Storagementioning

confidence: 99%

Energy Applications of Ionic Liquids: Recent Developments and Future Prospects

Zhou,

Gui,

Sun

et al. 2023

Chem. Rev.

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“…These data will be justified on the basis of the location of use and the rules in the literature. Our system is intended to be used in tropical Africa because the range of energy consumption due to air conditioning in this area is 40-80% [33] . The main target areas are: Douala and Yaoundé, the economic and political capital of Cameroon respectively.…”

Section: Modelling and Justification Of Reference Datamentioning

confidence: 99%

Analysis and improvement of the efficiency of NH3-NaSCN single effect absorption cooling system

Ngock

Tamba

Djanna

et al. 2022

Heliyon

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“…Sun et al have analyzed single-effect absorption refrigeration systems using R1234yf/ionic liquid as working fluids. The effects of production, evaporation, condensation and absorption temperature and compression ratio on cooling performance and circulation rate were examined under different operating conditions [4]. Wu and Ortiz investigated the effect of LiBr-H 2 O nanofluid on magnetic field for vapor absorption as experimentally.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic analysis of absorption cooling system with LiBr-Al2O3/water nanofluid using solar energy

Kılıç

Ipek

2022

THERM SCI

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Together with the developing nano technology, nano-fluids and nano-particles are used as working fluid in energy applications. It is foreseen that nanoparticles have high heat conduction coefficient and it will increase system performance by using as a working fluid in energy systems. Many studies in the literature show that nano fluids increase the heat transfer rate by improving heat transfer. In this study, a performance analysis of an absorption cooling system using solar energy was performed as numerically. LiBr-Al2O3/water nano-fluid has been used in the cooling system as working fluid. The thermodynamic values and calculations used in the analyses were performed with Engineering Equation Solver program. Heat load necessary for the generator is provided with a flat plate solar collector. For different operation condition, the variation of COP values was determined depend on Al2O3/water nanoparticle concentration ratio. When the Al2O3/water nanoparticle concentrations are changed as 0%, 0.5% and 0.1%, it was determined that the COP values increased. Nanoparticles added to the refrigerant at certain concentration values affects the COP values positively of cooling systems. Maximum COP value is 0.86 for 85?C generator temperature and 0.1% Al2O3/water nanoparticle concentration. The lowest COP value was obtained for the 75 oC generator temperature. When the Al2O3/water nanoparticle concentration was increased together with the generator temperature, COP values also increased. When the nanoparticle concentration of the working fluid increases, the viscosity of the nanofluid can be increases. Due to, increased viscosity increases the pressure drop in the flow channel and the pump power required for the flow. Thus, 'minimum viscosity with maximum thermal conductivity' optimisation in applications is very important.

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Performance analysis of R1234yf/ionic liquid working fluids for single-effect and compression-assisted absorption refrigeration systems

Cited by 54 publications

References 27 publications

Energy Applications of Ionic Liquids: Recent Developments and Future Prospects

Energy Applications of Ionic Liquids: Recent Developments and Future Prospects

Analysis and improvement of the efficiency of NH3-NaSCN single effect absorption cooling system

Thermodynamic analysis of absorption cooling system with LiBr-Al2O3/water nanofluid using solar energy

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