Comparison of Cooling System Designs for an Exhaust Heat Recovery System Using an Organic Rankine Cycle on a Heavy Duty Truck

Nicolas Stanzel, Thomas Streule, Markus Preißinger and Dieter Brüggemann
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Nicolas Stanzel: Daimler AG, Group Research & Advanced Engineering Powertrain, 70546 Stuttgart, Germany
Thomas Streule: Daimler AG, Group Research & Advanced Engineering Powertrain, 70546 Stuttgart, Germany
Markus Preißinger: Chair of Engineering Thermodynamics and Transport Processes (LTTT), Center of Energy Technology (ZET), University of Bayreuth, 95440 Bayreuth, Germany
Dieter Brüggemann: Chair of Engineering Thermodynamics and Transport Processes (LTTT), Center of Energy Technology (ZET), University of Bayreuth, 95440 Bayreuth, Germany

Energies, 2016, vol. 9, issue 11, 1-16

Abstract: A complex simulation model of a heavy duty truck, including an Organic Rankine Cycle (ORC) based waste heat recovery system and a vehicle cooling system, was applied to determine the system fuel economy potential in a typical drive cycle. Measures to increase the system performance were investigated and a comparison between two different cooling system designs was derived. The base design, which was realized on a Mercedes-Benz Actros vehicle revealed a fuel efficiency benefit of 2.6%, while a more complicated design would generate 3.1%. Furthermore, fully transient simulation results were performed and are compared to steady state simulation results. It is shown that steady state simulation can produce comparable results if averaged road data are used as boundary conditions.

Keywords: Organic Rankine Cycle (ORC); heavy-duty truck; cooling system; ethanol; 1-D simulation; heat recovery (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2016
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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