A Thermodynamic Analysis of Cogeneration System in Parallel Circuit Based on Organic Rankine Cycle
- 1 April 2012
- journal article
- Published by Trans Tech Publications, Ltd. in Advanced Materials Research
- Vol. 505, 534-538
- https://doi.org/10.4028/www.scientific.net/amr.505.534
Abstract
The combined heat and power generation system using Organic Rankine Cycle (ORC) has become a promising technology for efficient conversion of low-grade heat source to useful form of energy. In this study thermodynamic performance is investigated for a cogeneration system which consists of ORC power plant and an additional process heater as a parallel circuit. Nine different kinds of fluids of R143a, R22, R134a, R152a, R123, R113, isobutene, butane, and isopentane are considered as a working fluid of ORC. The effects of system parameters such as turbine inlet pressure, source temperature, and process heat load on the system performance including ratio of mass flow rates, net work production, and the first and second law efficiencies of thermodynamics for each fluid. Results show that there exists an optimal turbine inlet pressure to yield maximum net work. The selection of the working fluid for the combined system which assumes the maximum second-law efficiency is dependent on the source temperature level.This publication has 8 references indexed in Scilit:
- A techno-economic analysis of small-scale, biomass-fuelled combined heat and power for community housingBiomass and Bioenergy, 2011
- Selection of working fluids for a novel low-temperature geothermally-powered ORC based cogeneration systemEnergy Conversion and Management, 2011
- A review of thermally activated cooling technologies for combined cooling, heating and power systemsProgress in Energy and Combustion Science, 2011
- A thermodynamic criterion for selection of working fluid for subcritical and supercritical domestic micro CHPApplied Thermal Engineering, 2010
- Exergy based fluid selection for a geothermal Organic Rankine Cycle for combined heat and power generationApplied Thermal Engineering, 2010
- Energetic and economic investigation of Organic Rankine Cycle applicationsApplied Thermal Engineering, 2009
- Fluid selection for the Organic Rankine Cycle (ORC) in biomass power and heat plantsApplied Thermal Engineering, 2007
- Extension of the Wong-Sandler mixing rule to the three-parameter Patel-Teja equation of state: Application up to the near-critical regionChemical Engineering Journal, 1997