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Performance evaluation of a diesel engine integrated with ORC system

Zhao, M, Wei, M, Song, P, Lui, Z and Tian, Guohong (2016) Performance evaluation of a diesel engine integrated with ORC system Applied Thermal Engineering, 115. pp. 221-228.

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Abstract

Waste heat recovery from exhaust gas with organic Rankine cycle (ORC) systems is a promising method to improve the overall thermal efficiency of engines. The performance of a diesel engine integrated with an ORC system is evaluated in this paper. Simulation models of the diesel engine and the ORC system are developed in GT-suite separately, and a combined system model is developed in Simulink environment. The engine simulation results are validated experimentally. The steady performance evaluation of the engine with ORC system at different engine conditionsis presented, and the acceleration performance of the diesel engine with and without ORC is evaluated. The performance of the engine during the ORC expander start-stop process is also discussed. The steady performance simulation results indicate that, the net power output increment, the brake specific fuel consumption (BSFC) reduction and the thermal efficiency improvement of the engine with ORC system can be up to 4.13 kW, 3.61 g/(kW·h) and 0.66 %, respectively. The transient performance simulation results show that the ORC system has minimal effects on the acceleration performance of the engine.

Item Type: Article
Subjects : Mechanical Engineering Science
Divisions : Faculty of Engineering and Physical Sciences > Mechanical Engineering Sciences
Authors :
NameEmailORCID
Zhao, MUNSPECIFIEDUNSPECIFIED
Wei, MUNSPECIFIEDUNSPECIFIED
Song, PUNSPECIFIEDUNSPECIFIED
Lui, ZUNSPECIFIEDUNSPECIFIED
Tian, Guohongg.tian@surrey.ac.ukUNSPECIFIED
Date : 19 December 2016
Identification Number : 10.1016/j.applthermaleng.2016.12.065
Copyright Disclaimer : © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Uncontrolled Keywords : Diesel engine; ORC; Steady performance; Acceleration performance; Start-stop process of expander
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 18 Jan 2017 11:58
Last Modified : 07 Jul 2017 10:49
URI: http://epubs.surrey.ac.uk/id/eprint/813323

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