Direct Injection Diesel Engine Rate of Heat Release Prediction using Universal Load Correction Factor in Double Wiebe Function for Performance Simulation Aarupadai Veedu Institute of Technology

Format:

Other

Author/Creator:

Loganathan, Loganathan, author.

Contributor:

Dhanasekaran, R.

Kiruṣṇamūrtti, Vi.

Murali Manohar, R.

Rameshbabu, A.

Thamaraikannan, R.

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2012

Summary:

A proposed modification or an innovation can be analyzed quicklyusing a computer simulation and cost overrun in setting up anexperimental work can be minimized by the optimization ofexperimental parameters beforehand. Literature data for performanceprediction of direct injection diesel engine operated either withdiesel fuels having property variation or with oxygenated dieselblends were found mostly confined to experimental investigationsonly. In modern research, computer simulation has become a powerfultool for diesel engine performance prediction as it saves time andis also economical in the analysis of modifications. In a finelytuned and warm engine, the thermodynamic models are capable ofreproducing cylinder pressure and over all engine performance withacceptable accuracy over a wide range of operating conditions. Inthis paper, a novel approach of applying the universal loadcorrection factor in double wiebe function model along with alinear late combustion model and the two-zone concept to modeldiesel combustion has the advantage of rapidly providing apparentrate of heat release, cylinder pressure, mean cylinder temperatureand concentration variations also with significantly less computingresource requirement. Any improvement predicted in the combustionheat release rate of an engine fuel will enhance the performanceand reduce the emission simultaneously under identical heat inputand operating conditions. Therefore a rapid combustion heat releaserate predictive capability is necessary to support the globalsimultaneous performance enhancement and pollution controlstrategy. In this paper an initiative is taken to predictcombustion heat release rate and performance of a direct injectiondiesel engine with reasonably acceptable accuracy by using auniversal modeling methodology in "C" language. A typicaldirect injection diesel engine (bore x stroke: 92 x 96 mm,compression ratio: 17.7 and speed 960 rpm) operated with dieselfor which the Society of Automotive Engineers International (SAEInternational) Journal-published experimental investigation datawere already available is taken for this simulation researchpurpose. Apparent heat release rates synthesized with the help ofuniversal load correction factor in double wiebe function modelalong with a linear late combustion model have been found agreedvery closely with the experimental investigation. The synthesizedresults of performance such as brake specific energy consumptionand brake thermal efficiency for various power outputs have beenfound agreed with reasonably acceptable accuracy

Notes:

Vendor supplied data

Publisher Number:

2011-01-2456

Access Restriction:

Restricted for use by site license