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A high efficient combined multi-effect evaporation–absorption heat pump and vapor-compression refrigeration part 1: Energy and economic modeling and analysis
Janghorban Esfahani, Iman; Kang, Yong Tae; Yoo, ChangKyoo - In: Energy 75 (2014) C, pp. 312-326
A novel combined system that combines a MEE–ABHP (multi-effect evaporation–absorption heat pump) with a VCR (vapor …-compression refrigeration) cycle is proposed to simultaneously generate cooling and fresh water. In the combined system, the condenser of the …
Persistent link: https://www.econbiz.de/10011053945
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A review of waste heat recovery on two-stroke IC engine aboard ships
Shu, Gequn; Liang, Youcai; Wei, Haiqiao; Tian, Hua; … - In: Renewable and Sustainable Energy Reviews 19 (2013) C, pp. 385-401
Different types of waste heat recovery technologies available onboard ships have been discussed from the perspective of technical principle and application feasibility. Study of basic principle, novel methods, existing designs, theoretical and experimental analyses, economics and feasibility are...
Persistent link: https://www.econbiz.de/10010608389
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Exergy analysis of solar assisted double effect absorption refrigeration system
Ravikumar, T.S.; Suganthi, L.; Samuel, Anand A. - In: Renewable Energy 14 (1998) 1, pp. 55-59
exergy variation in the solar assisted absorption system. The influence of the cycle parameters are analysed on the basis of …
Persistent link: https://www.econbiz.de/10010806091
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Development and testing of a prototype of low-power water–ammonia absorption equipment for solar energy applications
De Francisco, A.; Illanes, R.; Torres, J.L.; Castillo, M.; … - In: Renewable Energy 25 (2002) 4, pp. 537-544
This article outlines the development and testing of a prototype of a water–ammonia absorption system designed for … solar-powered refrigeration in small rural operations. The objective is to design a 2 kW refrigeration equipment for … isolated areas with a high level of solar radiation to meet refrigeration requirements. The equipment has been designed to …
Persistent link: https://www.econbiz.de/10011044062
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Optimization of a solar driven absorption refrigerator in the transient regime
Hamed, Mouna; Fellah, Ali; Ben Brahim, Ammar - In: Applied Energy 92 (2012) C, pp. 714-724
This contribution deals with the theoretical study in dynamic mode of an absorption refrigerator endoreversible model …, an absorption refrigerator and a solar collector form. A mathematical model is developed. It combines the classical …
Persistent link: https://www.econbiz.de/10010571914
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A review on solar cold production through absorption technology
Hassan, H.Z.; Mohamad, A.A. - In: Renewable and Sustainable Energy Reviews 16 (2012) 7, pp. 5331-5348
waste heat. In this study, we present a comprehensive literature review on absorption based refrigeration and air … perspective, solar powered cooling systems as a green cold production technology are the best alternative. Absorption … refrigeration is a mature technology that has proved its applicability with the possibility to be driven by low grade solar and …
Persistent link: https://www.econbiz.de/10010664492
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A study of an integrated land-fill and coppice power station
Harder, MK; Freeman, LA - In: Renewable Energy 9 (1996) 1, pp. 989-992
The use of methane from controlled landfill sites is well established as a method of generating usable energy from waste. However, the economics of this method are prejudiced by factors such as the restricted lifetime of the site and the initial capital costs in setting up the generating plant...
Persistent link: https://www.econbiz.de/10010805791
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Performance of a gas engine heat pump (GEHP) using R410A for heating and cooling applications
Elgendy, E.; Schmidt, J.; Khalil, A.; Fatouh, M. - In: Energy 35 (2010) 12, pp. 4941-4948
A gas engine heat pump (GEHP) represents one of the most practicable systems which improve the overall energy utilization efficiency and reduce the operating cost for heating and cooling applications. The present work aimed at evaluating the performance of a GEHP for air-conditioning and hot...
Persistent link: https://www.econbiz.de/10011055351
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Thermoeconomic optimization of gas turbine cogeneration plants
Karaali, Rabi; Öztürk, İlhan Tekin - In: Energy 80 (2015) C, pp. 474-485
In this study, a novel thermoeconomic optimization method that is simple and efficient, for real complex cycles is introduced. First, a thermoeconomic analysis method that is called non-linear simplex direct search method is improved for the purposes of this study. The objective of this paper is...
Persistent link: https://www.econbiz.de/10011190889
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Performance enhancement of vapor recompression heat pump
Waheed, M.A.; Oni, A.O.; Adejuyigbe, S.B.; Adewumi, B.A.; … - In: Applied Energy 114 (2014) C, pp. 69-79
The vapor recompression heat pump (VRHP) has the potentials of reducing the energy requirements of fractionating close-boiling mixtures. It improves the quality of low grade heat with the aid of heat pump to provide heat input to the reboiler. However, this technology does not utilize heat...
Persistent link: https://www.econbiz.de/10010729365