Next Article in Journal
An Optimization Model of Carbon Sinks in CDM Forestry Projects Based on Interval Linear Programming
Next Article in Special Issue
An Analysis of the Use of Biosludge as an Energy Source and Its Environmental Benefits in Taiwan
Previous Article in Journal
A Closed-Form Technique for the Reliability and Risk Assessment of Wind Turbine Systems
Article Menu

Export Article

Open AccessArticle
Energies 2012, 5(6), 1751-1765;

Reciprocating Expander for an Exhaust Heat Recovery Rankine Cycle for a Passenger Car Application

Conservatoire National des Arts et Métiers, rue Saint-Martin, Paris 75003, France
Laboratoir thermidynamique, Université de Liège, Campus du Sart Tilman-Bât. B49, Liège B-4000, Belgium
Direction de recherche et technologies avancées, Renault, 1 avenue de Golf, Guyancourt 78288, France
Author to whom correspondence should be addressed.
Received: 10 April 2012 / Revised: 25 May 2012 / Accepted: 28 May 2012 / Published: 5 June 2012
(This article belongs to the Special Issue Waste to Energy Technologies)
Full-Text   |   PDF [247 KB, uploaded 17 March 2015]   |  


Nowadays, on average, two thirds of the fuel energy consumed by an engine is wasted through the exhaust gases and the cooling liquid. The recovery of this energy would enable a substantial reduction in fuel consumption. One solution is to integrate a heat recovery system based on a steam Rankine cycle. The key component in such a system is the expander, which has a strong impact on the system’s performance. A survey of different expander technologies leads us to select the reciprocating expander as the most promising one for an automotive application. This paper therefore proposes a steady-state semi-empirical model of the expander device developed under the Engineering Equation Solver (EES) environment. The ambient and mechanical losses as well as internal leakage were taken into account by the model. By exploiting the expander manufacturer’s data, all the parameters of the expander model were identified. The model computes the mass flow rate, the power output delivered and the exhaust enthalpy of the steam. The maximum deviation between predictions and measurement data is 4.7%. A performance study of the expander is carried out and shows that the isentropic efficiency is quite high and increases with the expander rotary speed. The mechanical efficiency depends on mechanical losses which are quite high, approximately 90%. The volumetric efficiency was also evaluated. View Full-Text
Keywords: Rankine cycle; heat recovery; heat exchanger; automotive engine Rankine cycle; heat recovery; heat exchanger; automotive engine

Figure 1

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Share & Cite This Article

MDPI and ACS Style

Glavatskaya, Y.; Podevin, P.; Lemort, V.; Shonda, O.; Descombes, G. Reciprocating Expander for an Exhaust Heat Recovery Rankine Cycle for a Passenger Car Application. Energies 2012, 5, 1751-1765.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top