NDLI: Evaluation of the Effect of Gas Leakage on Operation of an Optical Engine

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Kapusuz, E. Ekici, B.
Copyright Year	2010
Abstract	An experimental and numerical study is carried out to evaluate the significance of gas leakage for a non-lube optically accessible internal combustion engine and to obtain estimation for the gas flow out of the combustion chamber at each engine cycle and its effect on the in-cylinder component states during optical engine’s operation. Attention is paid to blow-by and circumferential flow through the gaps between the piston rings and the liner. Optical engines are typically operated without lubrication to avoid window fouling and generation of fluorescence by oil particles that interfere with laser diagnostic signals, in view of this circumstance significant blow-by is expected in optical engines due to lack of “wet-seal” on the cylinder walls which permits circumferential flow of gases through the piston ring pack region resulting in increased blow-by. Semi analytical model estimating the mass loss rate is incorporated into zero dimensional thermodynamic IC engine model which simulates in-cylinder processes. Predicted results are compared for leaking and non-leaking engine simulations.
Sponsorship	International
Starting Page	261
Ending Page	266
Page Count	6
File Format	PDF
ISBN	9780791849170
DOI	10.1115/ESDA2010-25076
e-ISBN	9780791838778
Volume Number	ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis, Volume 3
Conference Proceedings	ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis
Language	English
Publisher Date	2010-07-12
Publisher Place	Istanbul, Turkey
Access Restriction	Subscribed
Subject Keyword	Leakage Cycles Fluorescence Flow (dynamics) Engines Piston rings Gases Simulation Gas flow Lasers Internal combustion engines Particulate matter Engineering simulation Lubrication Signals Combustion chambers Cylinders
Content Type	Text
Resource Type	Article

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