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Instantaneous Heat Transfer over the Piston of a Motored Direct injection Type Diesel Engine
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Abstract
The instantaneous heat transfer through the piston was measured in a motored direct injection-type diesel engine. The engine piston was equipped with a fast-response thermocouple on the surface and at a specified distance below the surface thermocouple at a number of locations. In order to record and process the measurement of temperature and cylinder pressure, a personal computer (PC)-based data acquisition system was connected to the probes, A special linkage device was designed and implemented to connect the thermocouple wires between the bottom of the connecting rod and a stationary point on the oil pan. The surface heat flux was calculated using a one-dimensional conduction model with the measured temperature boundary conditions. The in-cylinder pressure data was used to calculate the cylinder air temperature and the instantaneous film heat transfer coefficient was calculated by using those in-cylinder measurements. The results of the experiment were discussed and compared to the previous results and the predictions made by others. The measured heat flux/engine speed relationship agreed with previous results. However, the measurements at various positions and at a range of intake manifold pressures did not check with prior predictions. The discrepancies could be contributed to different engine and operation conditions used.
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Mure, C. and Rhee, K., "Instantaneous Heat Transfer over the Piston of a Motored Direct injection Type Diesel Engine," SAE Technical Paper 890469, 1989, https://doi.org/10.4271/890469.Also In
References
- LeFeuvre T. Myers P.S. Uyehara O.A. “Experimental Instantaneous Heat Fluxes in a Diesel Engine and Their Correlation,” SAE Paper 690464 1969
- Dent J.C. Suliaman S.J. “Convective and Radiative Heat Transfer in a High Swirl Direct Injection Diesel Engine,” SAE Paper 770407 1977
- Hohenberg Gunter F. “Advanced Approaches for Heat Transfer Calculations,” SAE Paper 790825 1979
- Morel Thomas Wahiduzzaman Syde Tree Dale DeWitt David “Effect of Speed, Load, and Location on Heat Transfer in a Diesel Engine - Measurements and Predictions,” SAE Paper 870154 1987
- Bethel Steve Anderson C.L. “An Infrared Technique for Measuring Cycle-Resolved Transient Combustion Chamber Surface Temperatures in a Fired Engine,” SAE Paper 860240 1986
- Farrell Patrick V. Verhoeven Dean D. “Heat Transfer Measurements in a Motored Engine Using Specie Interferometry,” SAE Paper 870456 1987
- Bendersky David “A Special Thermocouple for Measuring Transient Temperatures,” Mechanical Engineering 75 2 117 121 1953
- Overbye Vern D. Bennethum James Uyehara O.A. Myers P.S. “Unsteady Heat Transfer in Engines,” SAE Transactions 69 461 493 1961
- Sarsten Arthur “Survey of Theoretical and Experimental Evaluation of Thermal Loading of Diesel Engines in Norway,” SAE Paper 790819 1979
- Roehrle Manfred D. “Thermal Effect on Diesel Engine Pistons,” SAE Paper78781 1978
- Furuhama Shoichi Enomoto Yoshiteru “Piston Temperature of Automobile Gasoline Engine in Driving on the Road,” Bulletin of the JSME 16 99 1385 1400 1973
- Wu H. Chiu C. “A Study of Temperature Distribution in a Diesel Piston - Comparison of Analytical and Experimental Results,” SAE Paper 861278 1986
- Uras H. Mehmet Patterson Donald J. “Measurement of Piston and Ring Assembly Friction-Instantaneous IMEP Method,” SAE Paper 830416 1983
- Mure Cliff R. “An Experimental Investigation of Heat Transfer in the Piston of a Motored Diesel Engine,” M.S. Thesis Rutgers University May 1988
- Woschini G “An Universally Applicable Equation for the Instantaneous Heat Transfer Coefficient in the Internal Combustion Engine,” SAE Paper 670931 1967
- Chen S.K. T.Z. Chang J.S. Chang “On-Line PC Based Engine Analyzer and Simulator,” SAE Paper 881256 1988