slugHeat Release Model of DI Diesel Engine: A Review
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2014, Vol 2, Issue 2
Abstract
Heat transfer to the cylinder walls of internal combustion engines is recognized as one of the most important factors that in influences both engine design and operation. A heat transfer model has been developed that uses quasi-steady heat flux relations to calculate the heat transfer from combustion gases through the cylinder wall to the coolant in an internal combustion engine. The treatment of convective heat transfer accounts for the physical problems of rotating and impinging axial flow inside the engine cylinder. The radiative heat transfer includes gas radiation (CO2, H20, and CO) and soot-particle radiation. Cylinder wall temperatures can be accurately predicted from this model for both the gas and the coolant sides. The present model's heat transfer results for the motoring case are in good agreement with results from empirical correlations based on instantaneous heat flux data. The calculated radiative heat flux and gas emissivity show reasonable agreement with data in the literature.
Authors and Affiliations
Vivek Shankhdhar, Neeraj Kumar
Keywords
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