This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
TDC Determination in IC Engines Based on the Thermodynamic Analysis of the Temperature-Entropy Diagram
Technical Paper
1999-01-1489
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
A thermodynamic methodology of TDC determination in IC engines based on a motoring pressure-time diagram is presented. This method consists in entropy calculation and temperature-entropy diagram analysis. When the TDC position is well calibrated, compression and expansion strokes under motoring conditions are symmetrical with respect to the peak temperature in the (T,S) diagram. Moreover, in case of error on the TDC position, a loop appears, which has no thermodynamic significance.
Hence, an easy methodology has been conceived to obtain the actual position of TDC. This methodology is applied to motoring measurements in order to present its performance, which are compared to usual methods.
Recommended Content
Authors
Topic
Citation
Tazerout, M., Le Corre, O., and Rousseau, S., "TDC Determination in IC Engines Based on the Thermodynamic Analysis of the Temperature-Entropy Diagram," SAE Technical Paper 1999-01-1489, 1999, https://doi.org/10.4271/1999-01-1489.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 |
Also In
References
- Brown W.L. Methods for Evaluating Requirements and Errors in Cylinder Pressure Measurement SAE Paper N° 670008
- Burnt M.F.J. Emtage A. L. Evaluation of IMEP Routines and Analysis Errors SAE Paper N° 960609
- Heywood J. Internal Combustion Engine Fundamentals McGraw-Hill International Editions 1988 0-07-100499-8
- Hribernik A. Statistical Determination of Correlation Between Pressure and Crankshaft Angle During Indication of Combustion Engines SAE Paper N° 982541
- Le Corre, S. Rousseau S. Solliec C. One Zone Thermodynamic Model Simulation of a Stationary Spark Ignition Gas Engine: Static and Dynamic Performances SAE Paper N° 982694
- Pinchon P. Calage Thermodynamique du Point Mort Haut des Moteurs à Piston Revue de l'institut du Pétrole 39 Janv-Fev 1984
- OSIRIS Guide Version 2.0 Copyright MACAO 1994-97
- Ramos J. Internal Combustion Engine Modeling Hemisphere Publishing Corporation 1989 0-89116-157-0
- Stas M. J. Thermodynamic Determination of T.D.C. in Piston Combustion Engines SAE Paper N° 960610