A Heat Release Model for Divided Chamber Diesel Engines

1986 ◽  
Author(s):  
P. A. Lakshminarayanan ◽  
U. P. Nagpurkar ◽  
S. B. Chandorkar
Keyword(s):  
Heat Release ◽  
Diesel Engines ◽  
Release Model

Development of a Zero-Dimensional Heat Release Model for Application to Small Bore Diesel Engines

2002 ◽  
Author(s):  
Peter Schihl ◽  
John Tasdemir ◽  
Ernest Schwarz ◽  
Walter Bryzik
Keyword(s):  
Heat Release ◽  
Diesel Engines ◽  
Release Model

A new phenomenological heat release model for thermodynamical simulation of modern turbocharged heavy duty Diesel engines

2006 ◽  
Vol 26 (16) ◽  
pp. 1851-1857 ◽  
Author(s):  
Xavier Tauzia ◽  
Alain Maiboom ◽  
Pascal Chesse ◽  
Nicolas Thouvenel
Keyword(s):  
Heat Release ◽  
Diesel Engines ◽  
Heavy Duty ◽  
Heavy Duty Diesel ◽  
Release Model

An Improved Rate of Heat Release Model for Modern High-Speed Diesel Engines

2017 ◽  
Vol 139 (9) ◽  
Author(s):  
Peter G. Dowell ◽  
Sam Akehurst ◽  
Richard D. Burke
Keyword(s):  
Heat Release ◽  
Diesel Engines ◽  
Engine Speed ◽  
Fuel Injection ◽  
Maximum Pressure ◽  
Injection Model ◽  
Wall Impingement ◽  
Small Set ◽  
Rate Of Heat Release ◽  
Engine System

To meet the increasingly stringent emissions standards, diesel engines need to include more active technologies with their associated control systems. Hardware-in-the-loop (HiL) approaches are becoming popular where the engine system is represented as a real-time capable model to allow development of the controller hardware and software without the need for the real engine system. This paper focusses on the engine model required in such approaches. A number of semi-physical, zero-dimensional combustion modeling techniques are enhanced and combined into a complete model, these include—ignition delay, premixed and diffusion combustion and wall impingement. In addition, a fuel injection model was used to provide fuel injection rate from solenoid energizing signals. The model was parameterized using a small set of experimental data from an engine dynamometer test facility and validated against a complete data set covering the full engine speed and torque range. The model was shown to characterize the rate of heat release (RoHR) well over the engine speed and load range. Critically, the wall impingement model improved R2 value for maximum RoHR from 0.89 to 0.96. This was reflected in the model's ability to match both pilot and main combustion phasing, and peak heat release rates derived from measured data. The model predicted indicated mean effective pressure and maximum pressure with R2 values of 0.99 across the engine map. The worst prediction was for the angle of maximum pressure which had an R2 of 0.74. The results demonstrate the predictive ability of the model, with only a small set of empirical data for training—this is a key advantage over conventional methods. The fuel injection model yielded good results for predicted injection quantity (R2 = 0.99) and enabled the use of the RoHR model without the need for measured rate of injection.

Experimental Correlations for Heat Release and Mechanical Losses in Turbocharged Diesel Engines

1993 ◽  
Author(s):  
Raffaele Tuccillo ◽  
Luigi Arnone ◽  
Fabio Bozza ◽  
Roberto Nocera ◽  
Adolfo Senatore
Keyword(s):  
Heat Release ◽  
Diesel Engines

Analysis of Incylinder Pressure and Temperature Variation in a Four-Stroke S. I. Engine Using Wiebe’s Combustion Model

2014 ◽  
Vol 984-985 ◽  
pp. 957-961
Author(s):  
Vijayashree ◽  
P. Tamil Porai ◽  
N.V. Mahalakshmi ◽  
V. Ganesan
Keyword(s):  
Heat Release ◽  
Combustion Process ◽  
Pressure Variation ◽  
Spark Ignition Engine ◽  
Working Fluid ◽  
Combustion Model ◽  
Cylinder Pressure ◽  
Crank Angle ◽  
Experimental Values ◽  
Release Model

This paper presents the modeling of in-cylinder pressure variation of a four-stroke single cylinder spark ignition engine. It uses instantaneous properties of working fluid, viz., gasoline to calculate heat release rates, needed to quantify combustion development. Cylinder pressure variation with respect to either volume or crank angle gives valuable information about the combustion process. The analysis of the pressure – volume or pressure-theta data of a engine cycle is a classical tool for engine studies. This paper aims at demonstrating the modeling of pressure variation as a function of crank angle as well as volume with the help of MATLAB program developed for this purpose. Towards this end, Woschni heat release model is used for the combustion process. The important parameter, viz., peak pressure for different compression ratios are used in the analysis. Predicted results are compared with experimental values obtained for a typical compression ratio of 8.3.

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