Title Development and analysis of the concept of two stage variable geometry turbocharger /
Translation of Title Dviejų turbinų komponuotės su kintamos geometrijos turbokompresoriumi koncepcijos kūrimas ir tyrimas.
Authors Premkumar, Gowtham
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Pages 41
Keywords [eng] turbocharger design ; turbocharger analysis ; turbocharger efficiency
Abstract [eng] In this research study, a different set of turbocharger is used compared to existing standard setup. The combination of variable geometry turbocharger and a standard large turbo to produce more output efficiency and maintain standard level of supply of air depending upon the engine requirement. This research is based on existing twin turbo as parallel and sequential for a naturally aspirated engine. For preparation, the turbo is setup in sequential order based on existing concepts to resolve turbo lag during start for faster response. The variable geometry turbocharger at lower rpm acts a smaller turbo in which condition vanes closed produce more rpm for the turbine causing compressor to run at high speed resulting in supply of high density and high pressured air to the manifold of the engine. The standard turbo at lower rate is set to supply high volume of air to variable geometry charger causing a high boost at lower rpm. At higher rpm, the variable geometry turbocharger vanes are caused to open due to high supply of air which result in converting the setup automatically as parallel to supply the pressurized air to the adjacent side of the engine. The turbocharger is designed and analyzed to prove the efficiency output is improved compared to existing setup. A set of valve are used on either side of turbo to convert as parallel and sequential for lower and higher.
Dissertation Institution Kauno technologijos universitetas.
Type Master thesis
Language English
Publication date 2017