Simulation and Analysis of Combustion and Heat Transfer in Low Heat Rejection Diesel Engine Using Two Zone Combustion Model and Different Heat Transfer Models

Abstract

The quest for increasing the efficiency of internal combustion engines has been going on ever since the invention of this reliable workhorse. In recent times much attention has been focused on achieving higher thermal efficiency by reducing the heat loss to the surroundings by the application of “Low heat rejection” concept using ceramic coating for engine components or ceramic components itself. In this direction, the present analysis focused towards the formulation and development of a two-zone combustion model for the prediction of combustion, heat release and performance of the conventional and low heat rejection engines.

A Research On Dual Fuel Operation On Lhr Diesel Engine

“…A positive reduction of emission is possible while using biodiesel in diesel engines, but performance point of view, it is suspicion one. So, with the aim of increase the efficiency of diesel engine by insulation of combustion hardware using ceramics coating termed as low heat rejection engine (LHR) with the some drawbacks [11,12]. BSFC and emission were decreases because of higher in-cylinder temperature of LHR engine, except NO x .…”

Study of Performance and Emission Analysis of Dual Biodiesel Fuelled on LHR Diesel Engine Supported by EGR System

“…The efficiency of the diesel engine can be improved by coating the combustion chamber with suitable insulation of ceramic materials and this type of engine is called low heat rejection engine [7][8][9]. Since two third of the heat energy is lost to the exhaust and coolant and only one third is utilized to obtain useful work, the use of LHR engine increases the thermal efficiency of the engine [10].…”

“…Since two third of the heat energy is lost to the exhaust and coolant and only one third is utilized to obtain useful work, the use of LHR engine increases the thermal efficiency of the engine [10]. Utilization of biodiesel in low heat rejection engine has further reduced the emissions and has increased the combustion chamber temperature, fuel economy, multi fuel capability and has reduced engine noise [11][12][13][14].…”

Development of a simulation model for compression ignition engine running with ignition improved blend

“…Ganapathy et al [13] developed a thermodynamic model to compute the incylinder pressure and temperature histories in addition to various performance parameters of a Diesel engine fuelled with biodiesel derived from Jatropha oil. Low heat rejection diesel engine was analyzed comprehensively using two zone combustion models and different heat transfer models by Tamilporai et al [14] to simulate the engine heat release, cylinder peak pressure and temperature and heat transfer details on zonal and cumulative basis.…”