Transient response performance of an engine turbocharger

Emir, SA

Abstract

This thesis is concerned with predicting the transient
response performance of an exhaust gas turbocharger under
pulsating and non-pulsating flow conditions.
Using the measured steady state characteristics of the
turbocharger compressor and turbine, theoretical procedures
are developed to predict its transient response during
rapid variations in the turbine inlet conditions. A computer
program has been written for non-pulsating and
two other programs for pulsating flow conditions. Each
of these programs used a different method of predicting
the response. The programs, with their subroutines
and the organization of the calculations, and experimental
data are presented.
To enable the computer predicted results to be compared
with experimental results, an experimental program was
carried out on a Holset 3LD turbocharger. The layout
and the principal features of the experimental test rig,
which is designed to operate the turbocharger from a
compressed air supply, are described. The rig may be
used to simulate engine exhaust conditions.
The computer predicted results are compared with the
experimental ones obtained from tests, during pulsating and non-pulsating operation of the turbocharger.
The experimental results and theoretical predictions
are found to compare favourably, and the possible
causes of discrepancies are suggested. Suggestions
are made for further work.

Citation

Emir, S. Transient response performance of an engine turbocharger. (Thesis). University of Salford, UK

• Thesis Type: Thesis
• Deposit Date: Jun 16, 2009
• Publicly Available Date: Jun 16, 2009
• Additional Information: Additional Information : PhD supervisor: Mr. G. P. Mitchell
• Award Date: Mar 1, 1981