Estimated total energy transfer over an nedc through steady state performance evaluation

Andy Lewis, Chris Brace, Sam Akehurst, Kevin Robinson, Ian Pegg

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

A steady state test procedure has been developed and implemented on an extensively instrumented production diesel engine to estimate the total energy transfer to coolant over a New European Drive Cycle. The test procedure involved segmenting the drive cycle into 26 operating conditions, each with a corresponding weighting factor. The test program consisted of both the steady state tests and a series of transient tests for comparison. The engine instrumentation consisted of a bespoke measurement device to calculate the rate of heat transfer through the combustion chamber walls. The sensors were located vertically down both the inlet and exhaust sides of one cylinder. It was found that the steady state approximation method estimated the total energy transfer to the coolant to within 10% of the transient tests. Differences in the idle speed condition were found to have the largest effect due to 21.7% of the drive cycle occurring at this condition. The steady state approximation method can therefore be used to sufficiently estimate the drive cycle performance for energy transfer if an exact condition is used for a region where the weighting factor is significant, i.e. greater than 15%. Subsequently it could also be used for other parameters, such as fuel consumption.

Original languageEnglish
Title of host publicationASME 2012 Internal Combustion Engine Division Spring Technical Conference, ICES 2012
PublisherAmerican Society of Mechanical Engineers (ASME)
Pages993-1001
Number of pages9
ISBN (Print)9780791844663
DOIs
Publication statusE-pub ahead of print - 18 Jul 2013
EventASME 2012 Internal Combustion Engine Division Spring Technical Conference, ICES 2012 - Torino, Piemonte, Italy
Duration: 6 May 20129 May 2012

Publication series

NameProceedings of the Spring Technical Conference of the ASME Internal Combustion Engine Division
ISSN (Print)1529-6598

Conference

ConferenceASME 2012 Internal Combustion Engine Division Spring Technical Conference, ICES 2012
CountryItaly
CityTorino, Piemonte
Period6/05/129/05/12

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Lewis, A., Brace, C., Akehurst, S., Robinson, K., & Pegg, I. (2013). Estimated total energy transfer over an nedc through steady state performance evaluation. In ASME 2012 Internal Combustion Engine Division Spring Technical Conference, ICES 2012 (pp. 993-1001). [ICES2012-81192] (Proceedings of the Spring Technical Conference of the ASME Internal Combustion Engine Division). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/ICES2012-81192

Estimated total energy transfer over an nedc through steady state performance evaluation. / Lewis, Andy; Brace, Chris; Akehurst, Sam; Robinson, Kevin; Pegg, Ian.

ASME 2012 Internal Combustion Engine Division Spring Technical Conference, ICES 2012. American Society of Mechanical Engineers (ASME), 2013. p. 993-1001 ICES2012-81192 (Proceedings of the Spring Technical Conference of the ASME Internal Combustion Engine Division).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Lewis, A, Brace, C, Akehurst, S, Robinson, K & Pegg, I 2013, Estimated total energy transfer over an nedc through steady state performance evaluation. in ASME 2012 Internal Combustion Engine Division Spring Technical Conference, ICES 2012., ICES2012-81192, Proceedings of the Spring Technical Conference of the ASME Internal Combustion Engine Division, American Society of Mechanical Engineers (ASME), pp. 993-1001, ASME 2012 Internal Combustion Engine Division Spring Technical Conference, ICES 2012, Torino, Piemonte, Italy, 6/05/12. https://doi.org/10.1115/ICES2012-81192
Lewis A, Brace C, Akehurst S, Robinson K, Pegg I. Estimated total energy transfer over an nedc through steady state performance evaluation. In ASME 2012 Internal Combustion Engine Division Spring Technical Conference, ICES 2012. American Society of Mechanical Engineers (ASME). 2013. p. 993-1001. ICES2012-81192. (Proceedings of the Spring Technical Conference of the ASME Internal Combustion Engine Division). https://doi.org/10.1115/ICES2012-81192
Lewis, Andy ; Brace, Chris ; Akehurst, Sam ; Robinson, Kevin ; Pegg, Ian. / Estimated total energy transfer over an nedc through steady state performance evaluation. ASME 2012 Internal Combustion Engine Division Spring Technical Conference, ICES 2012. American Society of Mechanical Engineers (ASME), 2013. pp. 993-1001 (Proceedings of the Spring Technical Conference of the ASME Internal Combustion Engine Division).
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