Next Article in Journal
Study on the Potential of Rice Straws as a Supplementary Fuel in Very Small Power Plants in Thailand
Previous Article in Journal
A Novel Concept for Three-Phase Cascaded Multilevel Inverter Topologies
Article Menu
Issue 2 (February) cover image

Export Article

Open AccessArticle
Energies 2018, 11(2), 269; doi:10.3390/en11020269

An Investigation on the Efficiency Correction Method of the Turbocharger at Low Speed

Department of Mechanical Engineering, Korea University of Technology and Education, Chungnam 31253, Korea
Green Car Power System R & D Division, Korea Automotive Technology Institute, Chungnam 31214, Korea
R & D Center, Keyyang precision Co. LTD, Gyeongsangbuk 39537, Korea
Author to whom correspondence should be addressed.
Received: 14 December 2017 / Revised: 12 January 2018 / Accepted: 16 January 2018 / Published: 23 January 2018
(This article belongs to the Section Energy Fundamentals and Conversion)
View Full-Text   |   Download PDF [5048 KB, uploaded 23 January 2018]   |  


The heat transfer in the turbocharger occurs due to the temperature difference between the exhaust gas and intake air, coolant, and oil. This heat transfer causes the efficiency of the compressor and turbine to be distorted, which is known to be exacerbated during low rotational speeds. Thus, this study proposes a method to mitigate the distortion of the test result data caused by heat transfer in the turbocharger. With this method, the representative compressor temperature is defined and the heat transfer rate of the compressor is calculated by considering the effect of the oil and turbine inlet temperatures at low rotation speeds, when the cold and the hot gas test are simultaneously performed. The correction of compressor efficiency, depending on the turbine inlet temperature, was performed through both hot and cold gas tests and the results showed a maximum of 16% error prior to correction and a maximum of 3% error after the correction. In addition, it shows that it is possible to correct the efficiency distortion of the turbocharger by heat transfer by correcting to the combined turbine efficiency based on the corrected compressor efficiency. View Full-Text
Keywords: turbocharger; compressor; efficiency; low speed; correction turbocharger; compressor; efficiency; low speed; correction

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Chung, J.E.; Chung, J.W.; Kim, N.H.; Lee, S.W.; Kim, G.Y. An Investigation on the Efficiency Correction Method of the Turbocharger at Low Speed. Energies 2018, 11, 269.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

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