Improving energy extraction from pulsating exhaust flow by active operation of a turbocharger turbine

Improving energy extraction from pulsating exhaust flow by active operation of a turbocharger turbine

A mixed flow turbine with pivoting nozzle vanes was designed and tested to actively adapt to the pulsating exhaust flow. The turbine was tested at equivalent speed of 48000 rpm with inlet flow pulsation of 40Hz and 60Hz, which corresponds to a 4-stroke diesel engine speed of 1600 rpm and 2400 rpm re...

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Main Authors: Rajoo, Srithar, Martinez-Botas, R. F.
Format: Conference or Workshop Item
Published: 2007
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://eprints.utm.my/id/eprint/24605/
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Institution: Universiti Teknologi Malaysia
id my.utm.24605
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spelling my.utm.246052017-09-17T07:18:19Z http://eprints.utm.my/id/eprint/24605/ Improving energy extraction from pulsating exhaust flow by active operation of a turbocharger turbine Rajoo, Srithar Martinez-Botas, R. F. TJ Mechanical engineering and machinery A mixed flow turbine with pivoting nozzle vanes was designed and tested to actively adapt to the pulsating exhaust flow. The turbine was tested at equivalent speed of 48000 rpm with inlet flow pulsation of 40Hz and 60Hz, which corresponds to a 4-stroke diesel engine speed of 1600 rpm and 2400 rpm respectively. The nozzle vane operating schedules for each pulse period are evaluated experimentally in two general modes; natural opening and closing of the vanes due to the pulsating flow and the forced sinusoidal oscillation of the vanes to match the incoming pulsating flow. The turbine energy extraction as well as efficiency is compared for the two modes to formulate its effectiveness. 2007 Conference or Workshop Item PeerReviewed Rajoo, Srithar and Martinez-Botas, R. F. (2007) Improving energy extraction from pulsating exhaust flow by active operation of a turbocharger turbine. In: SAE 2007, 2007, Michigan, USA.
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Rajoo, Srithar
Martinez-Botas, R. F.
Improving energy extraction from pulsating exhaust flow by active operation of a turbocharger turbine
description A mixed flow turbine with pivoting nozzle vanes was designed and tested to actively adapt to the pulsating exhaust flow. The turbine was tested at equivalent speed of 48000 rpm with inlet flow pulsation of 40Hz and 60Hz, which corresponds to a 4-stroke diesel engine speed of 1600 rpm and 2400 rpm respectively. The nozzle vane operating schedules for each pulse period are evaluated experimentally in two general modes; natural opening and closing of the vanes due to the pulsating flow and the forced sinusoidal oscillation of the vanes to match the incoming pulsating flow. The turbine energy extraction as well as efficiency is compared for the two modes to formulate its effectiveness.
format Conference or Workshop Item
author Rajoo, Srithar
Martinez-Botas, R. F.
author_facet Rajoo, Srithar
Martinez-Botas, R. F.
author_sort Rajoo, Srithar
title Improving energy extraction from pulsating exhaust flow by active operation of a turbocharger turbine
title_short Improving energy extraction from pulsating exhaust flow by active operation of a turbocharger turbine
title_full Improving energy extraction from pulsating exhaust flow by active operation of a turbocharger turbine
title_fullStr Improving energy extraction from pulsating exhaust flow by active operation of a turbocharger turbine
title_full_unstemmed Improving energy extraction from pulsating exhaust flow by active operation of a turbocharger turbine
title_sort improving energy extraction from pulsating exhaust flow by active operation of a turbocharger turbine
publishDate 2007
url http://eprints.utm.my/id/eprint/24605/
_version_ 1643647512799608832

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