Open Access

ARTICLE

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

by

School of Mechanical & Building Sciences, VIT University, Vellore-632014, Tamil Nadu, India

* Corresponding Author: Email:

Frontiers in Heat and Mass Transfer 2013, 4(1), 1-11. https://doi.org/10.5098/hmt.v4.1.3008

Abstract

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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Keywords

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