DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, Chansoo | ko |
dc.contributor.author | Ebisu, Motoki | ko |
dc.contributor.author | Bae, Choongsik | ko |
dc.date.accessioned | 2021-12-23T06:40:34Z | - |
dc.date.available | 2021-12-23T06:40:34Z | - |
dc.date.created | 2021-06-14 | - |
dc.date.created | 2021-06-14 | - |
dc.date.created | 2021-06-14 | - |
dc.date.issued | 2022-01 | - |
dc.identifier.citation | INTERNATIONAL JOURNAL OF ENGINE RESEARCH, v.23, no.1, pp.90 - 103 | - |
dc.identifier.issn | 1468-0874 | - |
dc.identifier.uri | http://hdl.handle.net/10203/290961 | - |
dc.description.abstract | The effects of turbocharger (T/C) rotational inertia on engine and turbine performance under transient and steady engine conditions were analyzed in a 2.0 L 4-cylinder turbocharged-gasoline direct injection (T-GDI) engine. The test T/Cs consisted of heavy and light compressor wheels (C/W) and turbine wheels (T/W). The study was conducted in two research stages. First, transient engine load tests were conducted to evaluate the effect of T/C rotational inertia on transient response of the T/C, combustion performance, and fuel consumption. Seconds, steady engine load tests were conducted to find out if a light inertia T/C can run at higher efficiency under the same exhaust pulsating flow conditions within one engine cycle. In order to evaluate the engine on-board turbine instantaneous performances in the units of crank angle degree (CAD), T/C rotation speed and pressure data were measured in the experiment. The instantaneous exhaust gas mass flow rate and the temperature of upstream and downstream of the turbine were extracted by 1-D simulation. Turbine efficiency and mass flow rate parameters were calculated by combining these data. In the results, there existed positive effects of light inertia T/C on response and specific fuel consumption under transient conditions. It was also found that the light inertia T/C could show higher T/C speed fluctuation under the same exhaust pulsating flow conditions. Consequently, blade speed ratio (BSR) and turbine efficiency of light inertia T/C were partially higher than that of conventional one. However, it was not led to higher engine efficiency. | - |
dc.language | English | - |
dc.publisher | SAGE PUBLICATIONS LTD | - |
dc.title | Effects of turbocharger rotational inertia on engine and turbine performance in a turbocharged gasoline direct injection engine under transient and steady conditions | - |
dc.type | Article | - |
dc.identifier.wosid | 000656027800001 | - |
dc.identifier.scopusid | 2-s2.0-85098865351 | - |
dc.type.rims | ART | - |
dc.citation.volume | 23 | - |
dc.citation.issue | 1 | - |
dc.citation.beginningpage | 90 | - |
dc.citation.endingpage | 103 | - |
dc.citation.publicationname | INTERNATIONAL JOURNAL OF ENGINE RESEARCH | - |
dc.identifier.doi | 10.1177/1468087420984600 | - |
dc.contributor.localauthor | Bae, Choongsik | - |
dc.contributor.nonIdAuthor | Ebisu, Motoki | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Light inertia turbocharger | - |
dc.subject.keywordAuthor | transient response | - |
dc.subject.keywordAuthor | transient fuel consumption | - |
dc.subject.keywordAuthor | unsteady turbine efficiency | - |
dc.subject.keywordAuthor | Unsteady turbine mass flow rate parameters | - |
dc.subject.keywordPlus | ECONOMY | - |
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