Influence of Combustion Condition and Air-Fuel Charge Rotation on Intensity of Heat Transfer in an IC Engine Operating on Gas Fuel
Abstract
In the Heat Engineering Department of Poznan University of Technology, Poland, investigations of heat transfer processes on the wall of a single action internal combustion engine have been carried out for the last 10 years. Investigations of local heat transfer coefficients were carried out in different combustion conditions and the engine was propelled with a methane-carbon dioxide mixture (65% CH4 and 35% CO2). There were changes in timing, excess air number (lambda = 1,05 divided by 1,3), and charge rotation. The authors investigated its influence on intensity of heat transfer in the single action internal combustion engine. The motion of the piston, the surface temperature of the chamber wall, and pressure in the combustion chamber were recorded using a digital acquisition system. Then the transient heat flux from combustion gases to the wall was calculated by solving numerically the unsteady inverse one-dimensional heat conduction problem. The authors observed a significant influence of the excess air number, ignition timing, and the way of combustion mixture preparation on the process of heat transfer in the combustion chamber. Time-dependent plots of heat flux to the wall are presented in figure 2. (1 table, 2 figures, 6 refs.)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 2003
- Accession Number
- ADA419406
Entities
People
- Janusz Rabiega
- Leon Boguslawski
Organizations
- Poznań University of Technology