Prediction of Heat Release in a Quiescent Chamber Diesel Engine Allowing for Fuel/Air Mixing

Whitehouse, N. D.; Sareen, B. K.

doi:10.4271/740084

Cited by 43 publications

(10 citation statements)

References 5 publications

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“…The combustion of the pilotinjected diesel fuel is assumed to take place in two subsequent stages, i.e., premixed and diffusion combustion. Thus, the semiempirical combustion model of Whitehouse-Way is used to describe the preparation and combustion rates of the pilot liquid fuel [34,35].…”

Section: Diesel Fuel Injectionmentioning

confidence: 99%

Theoretical study of the effects of engine parameters on performance and emissions of a pilot ignited natural gas diesel engine☆

Papagiannakis

Kotsiopoulos

Zannis

et al. 2010

Energy

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Section: Diesel Fuel Injectionmentioning

confidence: 99%

Theoretical study of the effects of engine parameters on performance and emissions of a pilot ignited natural gas diesel engine☆

Papagiannakis

Kotsiopoulos

Zannis

et al. 2010

Energy

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“…The KIVA-CHEMKIN combination is an example for the detailed modeling of flow and combustion processes in internal combustion engines [9]. However, multidimensional modeling of all these processes from the intake manifold to the exhaust manifold takes extensive computation time and very powerful computers [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Sensitivity and Effect of Ignition Timing on the Performance of a Spark Ignition Engine: An Experimental and Modeling Study

Kakaee

Shojaeefard

Zareei

2011

Journal of Combustion

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The performance of a spark ignition engine is investigated under different values of ignition advance. A two-zone burnt/unburned model with the fuel burning rate described by a Wiebe function is used for modeling in-cylinder combustion, and then experiments are carried out to validate the calculated data. By varying the ignition timing, the results of some characteristics such as power, torque, thermal efficiency, pressure, and heat release are obtained and compared. The results show that optimal power and torque are achieved at 31°CA before top dead center, and performance is decreased if this ignition timing is changed. It is also shown that the maximum thermal efficiency is accomplished when peak pressure occurs between 5 and 15°CA after top dead center.

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“…The need for accurate predictions of exhaust emissions pollutants forced the researchers to the development of two-zone (Whitehouse and Sareen, 1974;Kouremenos et al, 1989Kouremenos et al, , 1990aRakopoulos, CCC 0363 -907X/95 / O 1 OO63-26 0 1995 by John Wiley & Sons, Ltd. 1991) and four-zone diesel combustion models (Khan et al, 1975;Kouremenos et al, 1990b). Eventually a few multi-zone combustion models have appeared (Shahed et al, 1975;Hodgetts and Shroff, 1975;Hiroyasu et al, 1982Hiroyasu et al, , 1983Nishida and Hiroyasu, 1989;Ottikkutti et al, 19911, where the detailed analysis of fuel-air distribution permits the calculation of exhaust gas composition with reasonable accuracy, of course with an increase in computing time (cost) when compared to lower zones diesel combustion models.…”

Section: Introductionmentioning

confidence: 99%

Analysis of combustion and pollutants formation in a direct injection diesel engine using a multi-zone model

Rakopoulos

Hountalas

Taklis

et al. 1995

Int. J. Energy Res.

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A two‐dimensional multi‐zone model for the calculation of the closed cycle of a direct injection (DI) diesel engine is presented. The fuel spray is divided into small packages and the effect of air velocity pattern on spray development is taken into account. The calculation of swirl intensity variations during the cycle is based on hybrid solid body‐boundary layer rotation scheme. Application of the mass, energy and state equations in each zone yields local temperatures and cylinder pressure histories. For calculating the concentration of constituents in the exhaust gases, a chemical equilibrium scheme is adopted for the C‐H‐O system of the eleven species considered, together with chemical rate equations for the calculation of nitric oxide (NO). A model for the evaluation of soot formation and oxidation rates is incorporated. A comparison is made between the theoretical results from the computer program implementing the analysis, with experimental results from a vast experimental investigation conducted on a direct injection, Lister‐Petter diesel engine, with very encouraging results. Plots of temperature, equivalence ratio, NO and soot distributions inside the combustion chamber are presented, elucidating the physical mechanisms governing combustion and pollutants formation.

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Prediction of Heat Release in a Quiescent Chamber Diesel Engine Allowing for Fuel/Air Mixing

Cited by 43 publications

References 5 publications

Theoretical study of the effects of engine parameters on performance and emissions of a pilot ignited natural gas diesel engine☆

Theoretical study of the effects of engine parameters on performance and emissions of a pilot ignited natural gas diesel engine☆

Sensitivity and Effect of Ignition Timing on the Performance of a Spark Ignition Engine: An Experimental and Modeling Study

Analysis of combustion and pollutants formation in a direct injection diesel engine using a multi-zone model

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