Exhaust Gas Temperature Measurements in Diagnostics of Turbocharged Marine Internal Combustion Engines Part I Standard Measurements

Polish maritime research

Zbigniew KorczewskiGda?sk University of Technology 11/12 Narutowicza St. 80 - 233 Gda?sk PolandOther articles by this author:De Gruyter OnlineGoogle Scholar¹ 

[1] Gda?sk University of Technology 11/12 Narutowicza St. 80 - 233 Gda?sk Poland

关键词: Keywords : diagnostic;    internal combustion engine;    exhaust gas temperature;   

DOI  :  10.1515/pomr-2015-0007

学科分类：工程和技术（综合）

来源: Politechnika Gdanska * Wydzial Oceanotechniki i Okretownictwa

【 摘 要 】

The article discusses the problem of diagnostic informativeness of exhaust gas temperature measurements in turbocharged marine internal combustion engines. Theoretical principles of the process of exhaust gas flow in turbocharger inlet channels are analysed in its dynamic and energetic aspects. Diagnostic parameters are defined which enable to formulate general evaluation of technical condition of the engine based on standard online measurements of the exhaust gas temperature. A proposal is made to extend the parametric methods of diagnosing workspaces in turbocharged marine engines by analysing time-histories of enthalpy changes of the exhaust gas flowing to the turbocompressor turbine. Such a time-history can be worked out based on dynamic measurements of the exhaust gas temperature, performed using a specially designed sheathed thermocouple.

【 授权许可】

Unknown