Dynamic identification of thermodynamic parameters for turbocharger compressor models

Richard Burke, Pablo Olmeda, José Ramón Serrano

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

  • 1 Citations

Abstract

A novel experimental procedure is presented which allows simultaneous identification of heat and work transfer parameters for turbocharger compressor models. The method introduces a thermally transient condition and uses temperature measurements to extract the adiabatic efficiency and internal convective heat transfer coefficient simultaneously, thus capturing the aerodynamic and thermal performance. The procedure has been implemented both in simulation and experimentally on a typical turbocharger gas stand facility. Under ideal conditions, the new identification predicted adiabatic efficiency to within 1%point 1 and heat transfer coefficient to within 1%. A sensitivity study subsequently showed that the method is particularly sensitive to the assumptions of heat transfer distribution pre and post compression. If 20% of the internal area of the compressor housing is exposed to the low pressure intake gas, and this is not correctly assumed in the identification process, errors of 7-15%points were observed for compressor efficiency. This distribution in heat transfer also affected the accuracy of heat transfer coefficient which increased to 20%. Thermocouple sensors affect the transient temperature measurements and in order to maintain efficiency errors below 1%, probes with diameter of less than 1.5mm should be used. Experimentally, the method was shown to reduce the adiabatic efficiency error at 90krpm and 110krpm compared to industry standard approach from 6% to 3%. However at low speeds, where temperature differences during the identification are small, the method showed much larger errors.

LanguageEnglish
Title of host publicationASME 2014 Internal Combustion Engine Division Fall Technical Conference (ICEF)
PublisherAmerican Society of Mechanical Engineers (ASME)
Number of pages12
Volume2
ISBN (Print)9780791846179
DOIs
StatusPublished - 2014
EventASME 2014 Internal Combustion Engine Division Fall Technical Conference, ICEF 2014 - Columbus, UK United Kingdom
Duration: 19 Oct 201422 Oct 2014

Conference

ConferenceASME 2014 Internal Combustion Engine Division Fall Technical Conference, ICEF 2014
CountryUK United Kingdom
CityColumbus
Period19/10/1422/10/14

Fingerprint

Compressors
Identification (control systems)
Thermodynamics
Heat transfer coefficients
Temperature measurement
Heat transfer
Thermocouples
Gases
Aerodynamics
Sensors
Industry
Temperature
Hot Temperature

Cite this

Burke, R., Olmeda, P., & Serrano, J. R. (2014). Dynamic identification of thermodynamic parameters for turbocharger compressor models. In ASME 2014 Internal Combustion Engine Division Fall Technical Conference (ICEF) (Vol. 2). [V002T06A006] American Society of Mechanical Engineers (ASME). DOI: 10.1115/ICEF2014-5562

Dynamic identification of thermodynamic parameters for turbocharger compressor models. / Burke, Richard; Olmeda, Pablo; Serrano, José Ramón.

ASME 2014 Internal Combustion Engine Division Fall Technical Conference (ICEF). Vol. 2 American Society of Mechanical Engineers (ASME), 2014. V002T06A006.

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

Burke, R, Olmeda, P & Serrano, JR 2014, Dynamic identification of thermodynamic parameters for turbocharger compressor models. in ASME 2014 Internal Combustion Engine Division Fall Technical Conference (ICEF). vol. 2, V002T06A006, American Society of Mechanical Engineers (ASME), ASME 2014 Internal Combustion Engine Division Fall Technical Conference, ICEF 2014, Columbus, UK United Kingdom, 19/10/14. DOI: 10.1115/ICEF2014-5562
Burke R, Olmeda P, Serrano JR. Dynamic identification of thermodynamic parameters for turbocharger compressor models. In ASME 2014 Internal Combustion Engine Division Fall Technical Conference (ICEF). Vol. 2. American Society of Mechanical Engineers (ASME). 2014. V002T06A006. Available from, DOI: 10.1115/ICEF2014-5562
Burke, Richard ; Olmeda, Pablo ; Serrano, José Ramón. / Dynamic identification of thermodynamic parameters for turbocharger compressor models. ASME 2014 Internal Combustion Engine Division Fall Technical Conference (ICEF). Vol. 2 American Society of Mechanical Engineers (ASME), 2014.
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