Design and simulation of a solar-powered/fuel-assisted rankine engine for power generation

Gari, H.A.; Khalifa, A.M.A.; Radhwan, Abdulhaiy M.

doi:10.1016/0306-2619(88)90012-8

Cited by 6 publications

(6 citation statements)

References 5 publications

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“…The collector field limitation is the maximum allowed temperature of the heat transfer oil used inside the collector. Some input parameters were similar to [3]. The author carried out a simulation of this cycle for Saudi Arabia's climate.…”

Section: Methodsmentioning

confidence: 99%

“…The OCR efficiency is limited due to the organic fluids decomposition at high temperatures. Rankine engine which operates between temperature of 93 C and 27 C will expect to have an efficiency of 9% and if the higher temperature is increased to about 200 C, the efficiency can rise to 19%, [3]. The water is the original working fluid in Rankine engine.…”

Section: Introductionmentioning

confidence: 99%

“…The SPFASRE has been simulated for Jeddah's climate in Saudi Arabia [3]. The system generates a 36 kW steady electrical power.…”

Section: Introductionmentioning

confidence: 99%

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Exergoeconomic analysis of a solar-powered/fuel assisted Rankine cycle for power generation

Cavalcanti

Motta²

2015

Energy

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Exergoeconomic analysis of a solar-powered/fuel assisted Rankine cycle for power generation

Cavalcanti

Motta²

2015

Energy

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“…For di!erent types of application needs, di!erent systems of collector, working #uid, and cycle types are used. In their works, Gurgenci (1986), Murthy and Murthy (1987), Gari et al (1988) and Kuo et al (1998) described design and analysis of several di!erent types of solar}thermal systems.…”

Section: Introductionmentioning

confidence: 99%

A hybrid power generation system: solar-driven Rankine engine-hydrogen storage

Yang

Kuo

Aydın

2001

Int. J. Energy Res.

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This paper reports on the feasibility of a hybrid power generation system consisting of a solar energy-driven Rankine engine and a hydrogen storage unit. Solar energy, the power for the hybrid system, is converted into electrical power through a combination of a solar collector, a tracking device to maintain proper orientation with the sun and a Rankine cycle engine driving an electrical power generator. Excess electricity is utilized to produce hydrogen for storage through electrolysis of water. At the solar down time, the stored hydrogen can be used to produce high-quality steam in an aphodid burner to operate a turbine and with a "eld modulated generator to supplement electric power. Case studies are carried out on the optimum con"guration of the hybrid system satisfying the energy demand. A numerical example based on the actual measured solar input is also included to demonstrate the design potential.

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“…Figura 1.1 -Esquema geral de um Ciclo Orgânico de Rankine para geração de eletricidade a partir de painéis solares. (GARI et al, 1988) Figura 1.2 -Relação da temperatura de funcionamento com a potência gerada para diferentes ciclos de potência (Tarique, 2011).…”

Section: Objetivos Específicosunclassified

Estudo teórico e experimental de uma máquina a vapor alternativa.

Unzueta¹

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This work reviews the theoretical cycles studied by other authors on the operation of a steam engine as an expansion machine and chooses a generalized cycle for the study. This generalized cycle is modeled and the points of optimization are determined. By studying the theoretical cycles, it was found that the steam engine can reach the isentropic efficiency equal to 100%. An experimental study carried out in a steam engine in order to verify the phenomena occurring that influence their effectiveness, moving the actual operation away from the theoretical cycle. By making the experimental study, it was found that the actual steam engine has a low efficiency, reaching a maximum 10% isentropic efficiency. This efficiency is not of the cycle, but of the whole set, and is due to several factors, such as friction problems, lubrication problems, physical imperfections causing leakage of the working fluid. A computer simulation was performed in order to predict the actual behavior of the steam engine and compare with the experimental data. After analyzing the simulated data, it was found that the valves have a great influence on the isentropic efficiency of the steam cycle. Valves operating instantly can reach 96 % of isentropic efficiency, while real valves cause an efficiency of approximately 60% for the same simulation conditions. A major difference between the simulation and the actual data is the flow restriction caused by valves, which requires specific discharge coefficients for this type of valve.

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Design and simulation of a solar-powered/fuel-assisted rankine engine for power generation

Cited by 6 publications

References 5 publications

Exergoeconomic analysis of a solar-powered/fuel assisted Rankine cycle for power generation

Exergoeconomic analysis of a solar-powered/fuel assisted Rankine cycle for power generation

A hybrid power generation system: solar-driven Rankine engine-hydrogen storage

Estudo teórico e experimental de uma máquina a vapor alternativa.

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