NUMERICAL INVESTIGATIONS ON COMBUSTION AND EMISSION CHARACTERISTICS IN A DIRECT INJECTION DIESEL ENGINE AT ELEVATED FUEL TEMPERATURES

被引：2
|
作者：
Renganathan, Manimaran [1 ]
Rajagopal, Thundil Karuppa Raj [1 ]
机构：
[1] VIT Univ, Sch Mech & Bldg Sci, Vellore 632014, Tamil Nadu, India
来源：
FRONTIERS IN HEAT AND MASS TRANSFER | 2013年 / 4卷 / 01期
关键词：
Elevated fuel temperature; Direct injection diesel engine; Computational fluid dynamics; Combustion; Emissions;
D O I：
10.5098/hmt.v4.1.3008
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In this work, fuel spray parameters are studied by varying the fuel temperature. To overcome the tedious experimental task, a 3-D Computational Fluid Dynamics methodology is adopted by injecting fuel at specified temperatures of 313 K, 353 K and 393 K. The validation is accomplished after the optimal spatial and temporal steps of discretization are found out. At a fuel temperature of 313 K, advancing the injection timing from 6 deg bTDC to 20 deg bTDC increases cylinder peak pressure from 79.8 bar to 90.9 bar. Relation between the emission characteristics and spray SMD and temperature is studied.
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页数：11
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