Adoption of the F-statistic of Fisher-Snedecor distribution to analyze importance of impact of modifications of injector opening pressure of a compression ignition engine on specific enthalpy value of exhaust gas flow

• Autorzy: Puzdrowska Patrycja

Identyfikatory

DOI

10.19206/CE-168520

• Języki publikacji: EN

Abstrakty

EN

This article analyzes the effect of modifications of injector opening pressure on the operating values of a compression ignition engine, including the temperature of the exhaust gas. A program of experimental investigation is described, considering the available test stand and measurement capabilities. The structure of the test stand on which the experimental measurements were conducted is presented. The method of introducing real modifications of injector opening pressure to the existing test engine was characterized. It was proposed to use F statistic of Fisher-Snedecor (F-S) distribution to evaluate the importance of the impact of modifications of injector opening pressure on the specific enthalpy of the flue gas flow. Qualitative and statistical studies of the results achieved from the measurements were carried out. The specific enthalpy of the exhaust gas for a single cycle of the compression ignition engine, determined from the course of rapidly variable flue gas temperature, was analyzed. The results of these studies are presented and the usable adoption of this type of assessment in parametric diagnosing of compression ignition engines is discussed.

Słowa kluczowe

EN

diagnosis; injector opening pressure; F statistic of the Fisher-Snedecor distribution; compression ignition engine; exhaust

PL

diagnoza; ciśnienie otwarcia wtryskiwacza; statystyka F rozkładu Fishera-Snedecora; silnik o zapłonie samoczynnym; spaliny

• Wydawca: Polskie Towarzystwo Naukowe Silników Spalinowych
• Czasopismo: Combustion Engines
• Rocznik: 2024
• Tom: R. 63, nr 1
• Strony: 37--45
• Opis fizyczny: Bibliogr. 30 poz., fot. kolor., rys., wykr.

Twórcy

autor

Puzdrowska Patrycja

• Faculty of Mechanical Engineering and Ship Technology, Gdansk University of Technology, Poland

• https://orcid.org/0000-0003-0380-6926

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).