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Dynamic T.D.C. and Thermodynamic Loss Angle Measurement in a D. I. Diesel Engine
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Abstract
Direct and reliable measurements of Top Dead Center dynamic position and of thermodynamic loss angle are necessary for accurately evaluating many engine operating parameters.
For the purpose of taking these measurements, a sensor -whose operating principle is based on the closing of an electrical circuit- was designed and tested by the Author on a research D.I. Diesel engine.
The tests, carried out in motoring conditions, provided at every engine speed a well resolved signal of TDC dynamic position in reference to which thermodynamic loss angle was measured.
A good agreement was found between the angle values so measured and those numerically computed by a thermodynamic mathematical model of compression stroke.
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Citation
Rocco, V., "Dynamic T.D.C. and Thermodynamic Loss Angle Measurement in a D. I. Diesel Engine," SAE Technical Paper 851546, 1985, https://doi.org/10.4271/851546.Also In
References
- Feola M. Rocco V. “Error anlalysis in evaluating the mechanical efficiency of reciprocating i.c. engines” ETCE Conference January 18-22 1981 USA
- Migliaccio M. Rizzo G. Rocco V. “Evaluation of pumping and frictional losses of s.i. reciprocating i.c. engines” AUTOTECHNOLOGIES ‘85 Montecarlo January 29 February 2 1985
- Feola M. Rocco V. Scognamiglio A. “On the influence of the supercharging ratio on the frictional losses of a single-cylinder Diesel engine” ISATA Symposium Cologne Sept. 1983 Germany
- Cozzolino R. Migliaccio M. Rocco V. Senatore A. “II rilievo della pressione durante la fase di aspirazione per la misura della portata d'aria nei MCI ad accensione comandata” XIX Congresso ATA Modena 1983
- Hohenberg G. “Definition und Eigenschaften des thermodinamischen Verlustwinkels von Kolbenmaschinen” Automobie Industrie April 1976
- Hohenberg G. “Experimentelle erfassung der wandwarme von Kolbenmotoren” Eingereicht als habilitationsschrift Graz May 1980 Austria
- Hohenberg G. “Advanced approaches for heat transfer calculation” SAE paper n. 790825
- Lienesch J.H. Krage M.K. “Using microwaves to phase cylinder pressure to crankshaft position” SAE paper n. 790103
- Krage M.K. Lienesch J.H. Violetta D.M. “Dynamic Diesel engine timing with microwaves- The General Motors approach” SAE paper n. 820053
- De RO P. “Errors in practical evaluation of IMEP” AVL report Graz (Austria)
- Dawson P.J. “Acquiring and analyzing in-cylinder pressure data using a mini-computer based data acquisition systerm” ISATA Symposium 1981
- Lancaster D.R. Krieger R.B. Lienesch J.H. “Measurement and analysis of engine pressure data” SAE paper n. 750026
- Kochanowski H.A. “Der Totpunktfe Iher bei der Bestimmung des indizierte mitteldruks von Verbrennugsmotoren” MTZ 1 2 1976
- Fisher R.V. Macey J.P. “Digital data acquisition with emphasis on measuring pressure synchronously with crank angle” SAE paper n. 750028
- Astalosch L. Schafer H.J. “Measurement and analysis of engine indicator” ISATA Symposium 1981
- Douad A. Eyzat P. “DIGITAP- an on-line acquisition and processing system for instantaneous engine data-applifications” SAE paper n. 770218
- Kamel M. Watson N. “Heat transfer in the indirect injection Diesel engine” SAE/SP-79/449
- Woschni G. “A universally applicable equation for instantaneous heat transfer in the i.e. engine” SAE paper n. 670931
- Annand W.J.D. “Heat transfer in the cylinders of reciprocating i.c. engines” Pr. In. Mech. Eng. 973 1963
- Benson R.S. Whiteouse N.D. “Internal combustion engines” Pergamon Press 1979
- Pischinger R. Krassnigh G. Taucar G. “problems concerning the digital recording of rapidly changing values of i.c. engines” ISATA Symposium 1979