论文信息 - Thermodynamic Analysis of the Organic Rankine Cycle as a Waste Heat Recovery System of Marine Diesel Engine

Thermodynamic Analysis of the Organic Rankine Cycle as a Waste Heat Recovery System of Marine Diesel Engine

A thermodynamic analysis and a feasibility study on the organic Rankine cycle (ORC) as a waste heat recovery system for a marine diesel engine were carried out. The ORC and its combined cycle with the engine were simulated, and its performance was estimated theoretically using R245fa. A parametric study on the performance of the ORC system was carried out under different temperature conditions of the heat transfer loop and specification of the heat exchanger. According to the thermodynamic analysis, ~10% of the thermal efficiency of the cycle was able to be realized with the low temperature heat source below . The electric power output of the ORC was estimated to be about 4% of the mechanical power output of the engine, considering additional pumps for cooling water and circulation of the heat transfer medium. According to the present study, the electric power generated by the ORC is about 59%-69% of the required power, and it is possible to reduce the fuel consumption under normal seagoing conditions.

[1] S. Quoilin,et al. Performance and design optimization of a low-cost solar organic Rankine cycle for remote power generation , 2011 .

[2] George Papadakis,et al. Lowgrade heat conversion into power using organic Rankine cycles - A review of various applications , 2011 .

[3] Ulli Drescher,et al. Fluid selection for the Organic Rankine Cycle (ORC) in biomass power and heat plants , 2007 .

[4] Yang Chen,et al. Theoretical research of carbon dioxide power cycle application in automobile industry to reduce vehicle’s fuel consumption , 2005 .

[5] Enrico Barbier,et al. Geothermal energy technology and current status: an overview , 2002 .

[6] E. Stefanakos,et al. A REVIEW OF THERMODYNAMIC CYCLES AND WORKING FLUIDS FOR THE CONVERSION OF LOW-GRADE HEAT , 2010 .

[7] K. Srinivasan,et al. Analysis of exhaust waste heat recovery from a dual fuel low temperature combustion engine using an Organic Rankine Cycle , 2010 .