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Title: Effect of Temperature on LX-17 and PBX 9502 in the Cylinder test

Authors:
; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1374523
Report Number(s):
LLNL-CONF-733322
DOE Contract Number:
AC52-07NA27344
Resource Type:
Conference
Resource Relation:
Conference: Presented at: Effect of Temperature on LX-17 and PBX 9502 in the Cylinder test, St. Louis, MO, United States, Jul 09 - Jul 14, 2017
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY

Citation Formats

Souers, P C, Lauderbach, L, and Chaos, M. Effect of Temperature on LX-17 and PBX 9502 in the Cylinder test. United States: N. p., 2017. Web.
Souers, P C, Lauderbach, L, & Chaos, M. Effect of Temperature on LX-17 and PBX 9502 in the Cylinder test. United States.
Souers, P C, Lauderbach, L, and Chaos, M. 2017. "Effect of Temperature on LX-17 and PBX 9502 in the Cylinder test". United States. doi:. https://www.osti.gov/servlets/purl/1374523.
@article{osti_1374523,
title = {Effect of Temperature on LX-17 and PBX 9502 in the Cylinder test},
author = {Souers, P C and Lauderbach, L and Chaos, M},
abstractNote = {},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2017,
month = 6
}

Conference:
Other availability
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  • One technology for the advancement of efficiency of an internal combustion engine is to reduce the mechanical friction power loss on lubricated surfaces of the engine. For the attainment of higher efficiency of the engine, the minute investigation of lubrication characteristics and the various improvements are indispensable. The effect of temperature on the lubrication characteristics between a piston ring and a cylinder liner is studied by using Reynolds equation and energy equation in which the heat generated from the viscous dissipation. The oil film temperature between the ring and the liner is affected by the ring and the liner temperaturesmore » and viscous dissipation. Viscous dissipation is affected by the viscosity of oil film, the velocity of ring and the oil film thickness between the ring and the liner. The viscosity of the oil film between the ring and the liner is evaluated by the oil film temperature and it decreases with the increase of the oil film temperature for the viscous dissipation. The lubrication characteristics, that is the oil film thickness and the friction force, are affected largely by the viscosity of the oil film. Under the condition of viscosity varied with temperature, the oil film thickness and the friction force are lower than those under the condition of constant viscosity except the position near TDC in a cycle, because the oil film viscosity decreases with the increase of piston speed and the oil film temperature rise. It is very important to consider the thermohydrodynamic lubrication for the analysis of the lubrication characteristics between the piston ring and the cylinder liner in the internal combustion engine.« less