Design and testing of the Organic Rankine Cycle

Yamamoto, Takahisa; Furuhata, Tomohiko; Arai, Norio; Mori, Koichi

doi:10.1016/s0360-5442(00)00063-3

Cited by 473 publications

(174 citation statements)

References 5 publications

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“…This omnipresence and feasibility of utilization in small-scale power cycles promote decentralized applications of these energy sources. The organic Rankine cycle (ORC) is one of the promising cycles used to extract thermal energy from various energy sources such as solar, biomass and geothermal [2][3][4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Modeling and optimization of a binary geothermal power plant

Ghasemi

Paci

Tizzanini

et al. 2013

Energy

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6A model is developed for an existing organic Rankine cycle (ORC) utilizing a low temperature geothermal source. The model is implemented in Aspen Plus ® and used to simulate the performance of the existing ORC equipped with an air-cooled condensation system. The model includes all the actual characteristics of the components. The model is validated by approximately 5000 measured data in a wide range of ambient temperatures. The net power output of the system is maximized. The results suggest different optimal operation strategies based on the ambient temperature. Existing literature claims that no superheat is optimal for maximum performance of the system; this is confirmed only for low ambient temperatures. For moderate ambient temperatures (T amb ≥ 1.7 ) superheat maximizes net power output of the system. The value of the optimal superheat increases with increasing ambient temperature.The optimal operation boosts the total power produced in a year by 9%. In addition, a simpler and semi-analytic model is developed that enables very quick optimization of the operation of the cycle. Based on the pinch condition at the condenser, a simple explicit formula is derived that predicts the outlet pressure of the turbine as a function of mass flow rate of working fluid.

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Section: Introductionmentioning

confidence: 99%

Modeling and optimization of a binary geothermal power plant

Ghasemi

Paci

Tizzanini

et al. 2013

Energy

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“…Therefore, Rankine Cycle with water as working fluid gives poor performance with low temperature heat source. Kalina Cycle and Rankine Cycle with unconventional working fluids have potential to improve cycle performance [1,2]. Many researchers have studied Kalina Cycle and Rankine Cycle with unconventional working fluids.…”

Section: Introductionmentioning

confidence: 99%

Improved analysis of Organic Rankine Cycle based on radial flow turbine

Pan

Wang

2013

Applied Thermal Engineering

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“…Setting the heat transfer fluid flow rate allows defining the temperature glide in the collector. According to Yamamoto et al (2001), the superheating should be maintained as low as possible when using high molecular weight working fluids. The two remaining degrees of freedom (evaporating temperature and collector temperature glide) can be determined optimally, as shown in the next sections.…”

Section: System Performance and Fluid Comparisonmentioning

confidence: 99%

Performance and design optimization of a low-cost solar organic Rankine cycle for remote power generation

et al. 2011

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Recent interest in small-scale solar thermal combined heat and power (CHP) power systems has coincided with demand growth for distributed electricity supplies in areas poorly served by centralized power stations. One potential technical approach to meeting this demand is the parabolic trough solar thermal collector coupled with an organic Rankine cycle (ORC) heat engine.The paper describes the design of a solar organic Rankine cycle being installed in Lesotho for rural electrification purpose. The system consists of parabolic though collectors, a storages tank, and a small-scale ORC engine using scroll expanders.A model of each component is developed taking into account the main physical and mechanical phenomena occurring in the cycle and based on experimental data for the main key components.The model allows sizing the different components of the cycle and evaluates the performance of the system. Different working fluids are compared, and two different expansion machine configurations are simulated (single and double stage).

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Design and testing of the Organic Rankine Cycle

Cited by 473 publications

References 5 publications

Modeling and optimization of a binary geothermal power plant

Modeling and optimization of a binary geothermal power plant

Improved analysis of Organic Rankine Cycle based on radial flow turbine

Performance and design optimization of a low-cost solar organic Rankine cycle for remote power generation

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