Predicting Optimum Spark Timing of a Biofuel Four Stroke Spark Ignition Combustion Engine

There has been an increasing interest in the enhancement the efficiency and functionality of engines, particularly petrol ones, in recent years. In this paper, four stroke spark ignition internal combustion engine cycle has been simulated based on first law of thermodynamics. The second law analysis...

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Main Authors:	M. Farzaneh-Gord, H. Hajializadeh, A. H. Sarabandi
Format:	Article
Language:	English
Published:	Shahrood University of Technology 2020-01-01
Series:	Renewable Energy Research and Applications
Subjects:	internal combustion engine spark ignition availability analysis best spark timing
Online Access:	http://rera.shahroodut.ac.ir/article_1656_e869eaf796ac9429f0afc74939e2beb4.pdf

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spelling	doaj-c86d1df063dd4e3bab2f6a8eefc8e17f2021-09-05T06:27:23ZengShahrood University of TechnologyRenewable Energy Research and Applications2717-252X2676-74302020-01-0111758310.22044/rera.2020.9082.10141656Predicting Optimum Spark Timing of a Biofuel Four Stroke Spark Ignition Combustion EngineM. Farzaneh-Gord0H. Hajializadeh1A. H. Sarabandi2The Faculty of Engineering, Mechanical Engineering Department, Ferdowsi University of Mashhad, Mashhad, IranThe Faculty of Mechanical Engineering, Shahrood University of Technology, Shahrood, Iran.The Faculty of Mechanical Engineering, Shahrood University of Technology, Shahrood, Iran.There has been an increasing interest in the enhancement the efficiency and functionality of engines, particularly petrol ones, in recent years. In this paper, four stroke spark ignition internal combustion engine cycle has been simulated based on first law of thermodynamics. The second law analysis has also been conducted to analyse the effects of ignition timings, combustion duration as well as engine speed upon engine efficiency and performance. The availability (exergy) balance equations of the engine cylinder has been considered in detail. Moreover, total availability fractions and process irreversibilities have been evaluated. By considering the results for brake and indicated mean effective pressure, it is shown that they behave in an opposite way in terms of increasing engine speeds. After perusing the figures, a conclusion is made, revealing that exergetic efficiency rises by increasing engine speed, whereas the opposite is true for brake thermal efficiency. Furthermore, The optimum point in which total efficiency ( both thermal and exergetic) shows the highest possible level happens at the speed of 2500 rpmhttp://rera.shahroodut.ac.ir/article_1656_e869eaf796ac9429f0afc74939e2beb4.pdfinternal combustion enginespark ignitionavailability analysisbest spark timing
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	M. Farzaneh-Gord H. Hajializadeh A. H. Sarabandi
spellingShingle	M. Farzaneh-Gord H. Hajializadeh A. H. Sarabandi Predicting Optimum Spark Timing of a Biofuel Four Stroke Spark Ignition Combustion Engine Renewable Energy Research and Applications internal combustion engine spark ignition availability analysis best spark timing
author_facet	M. Farzaneh-Gord H. Hajializadeh A. H. Sarabandi
author_sort	M. Farzaneh-Gord
title	Predicting Optimum Spark Timing of a Biofuel Four Stroke Spark Ignition Combustion Engine
title_short	Predicting Optimum Spark Timing of a Biofuel Four Stroke Spark Ignition Combustion Engine
title_full	Predicting Optimum Spark Timing of a Biofuel Four Stroke Spark Ignition Combustion Engine
title_fullStr	Predicting Optimum Spark Timing of a Biofuel Four Stroke Spark Ignition Combustion Engine
title_full_unstemmed	Predicting Optimum Spark Timing of a Biofuel Four Stroke Spark Ignition Combustion Engine
title_sort	predicting optimum spark timing of a biofuel four stroke spark ignition combustion engine
publisher	Shahrood University of Technology
series	Renewable Energy Research and Applications
issn	2717-252X 2676-7430
publishDate	2020-01-01
description	There has been an increasing interest in the enhancement the efficiency and functionality of engines, particularly petrol ones, in recent years. In this paper, four stroke spark ignition internal combustion engine cycle has been simulated based on first law of thermodynamics. The second law analysis has also been conducted to analyse the effects of ignition timings, combustion duration as well as engine speed upon engine efficiency and performance. The availability (exergy) balance equations of the engine cylinder has been considered in detail. Moreover, total availability fractions and process irreversibilities have been evaluated. By considering the results for brake and indicated mean effective pressure, it is shown that they behave in an opposite way in terms of increasing engine speeds. After perusing the figures, a conclusion is made, revealing that exergetic efficiency rises by increasing engine speed, whereas the opposite is true for brake thermal efficiency. Furthermore, The optimum point in which total efficiency ( both thermal and exergetic) shows the highest possible level happens at the speed of 2500 rpm
topic	internal combustion engine spark ignition availability analysis best spark timing
url	http://rera.shahroodut.ac.ir/article_1656_e869eaf796ac9429f0afc74939e2beb4.pdf
work_keys_str_mv	AT mfarzanehgord predictingoptimumsparktimingofabiofuelfourstrokesparkignitioncombustionengine AT hhajializadeh predictingoptimumsparktimingofabiofuelfourstrokesparkignitioncombustionengine AT ahsarabandi predictingoptimumsparktimingofabiofuelfourstrokesparkignitioncombustionengine
_version_	1717814485563998208

Predicting Optimum Spark Timing of a Biofuel Four Stroke Spark Ignition Combustion Engine

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