Physics-Based Modeling and Transient Validation of an Organic Rankine Cycle Waste Heat Recovery System for a Heavy-Duty Diesel Engine

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Physics-Based Modeling and Transient Validation of an Organic Rankine Cycle Waste Heat Recovery System for a Heavy-Duty Diesel Engine

Xu, Bin / Shutty, John / Hoffman, Mark / Anschel, Paul / Onori, Simona / Liu, Xiaobing / Filipi, Zoran

This paper presents an Organic Rankine Cycle (ORC) system model for heavy-duty diesel (HDD) applications. The dynamic, physics-based model includes: heat exchangers for parallel exhaust and EGR circuits, compressible vapor working fluid, distribution and flow control valves, a high pressure pump, and a reservoir. A finite volume method is used to model the evaporator, and a pressure drop model is included to improve the accuracy of predictions. Experimental results obtained on a prototype ORC system are used for model calibration and validation. Comparison of predicted and measured values under steady-state conditions is pursued first, followed by the analysis of selected transient events. Validation reveals the model’s ability to track real-world temperature and pressure dynamics of the ORC system. Therefore, this modeling framework is suitable for future system design studies, optimization of ORC power generation, and as a basis for development of control-oriented ORC models.

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Dokumentinformationen

Titel :

Physics-Based Modeling and Transient Validation of an Organic Rankine Cycle Waste Heat Recovery System for a Heavy-Duty Diesel Engine

Weitere Titelangaben:

Sae Technical Papers

Beteiligte:

Xu, Bin (Autor:in) / Shutty, John (Autor:in) / Hoffman, Mark (Autor:in) / Anschel, Paul (Autor:in) / Onori, Simona (Autor:in) / Liu, Xiaobing (Autor:in) / Filipi, Zoran (Autor:in)

Kongress:

SAE 2016 World Congress and Exhibition ; 2016

Erschienen in:

Sae Technical Paper Series

Erscheinungsdatum :

2016-04-05

ISSN :

2688-3627 , 0148-7191

DOI :

https://doi.org/10.4271/2016-01-0199

Medientyp :

Aufsatz (Konferenz)