ORC System Development Using Diesel Engine Waste Heat

Abstract:

Based on the waste heat characteristics of the coolant and exhaust gas from diesel engine, the Organic Rankine Cycle (ORC) commercial plant had been developed. The working fluid was the R245fa, and the plate type heat exchangers were used as the condenser and evaporator in the ORC systems. The performance of condenser and evaporator had been simulated and developed using the effective-NTU method. Using the engine jacket coolant as the heating media, the coolant absorbs the waste heat from the exhaust gas and engine cylinders. The ORC system and engine can stably run for a long time without frequent control acting. The ORC systems can bring the 14.6 kw electric energy in the stable condition. The efficiency based on the first law of thermodynamics is 7.2%; complete generating efficiency is 6.25%.

• Periodical: Advanced Materials Research (Volumes 960-961)
• Pages: 405-409
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.960-961.405
• Online since: June 2014
• Authors: Jun Qi Dong*, Jiang Zhang Wang, Rong You Zhang
• Keywords: Engine, Exhaust Gas, Generator, Organic Rankince Cycle (ORC)

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