Thermodynamic modeling of spark-ignition engine: Effect of temperature dependent specific heats

E. Abu-Nada; I. Al-Hinti; A. Al-Sarkhi; B. Akash

doi:10.1016/j.icheatmasstransfer.2006.06.014

Thermodynamic modeling of spark-ignition engine: Effect of temperature dependent specific heats

E. Abu-Nada, I. Al-Hinti, A. Al-Sarkhi, B. Akash

Mechanical & Nuclear Engineering

The Hashemite University

Research output: Contribution to journal › Article › peer-review

74 Scopus citations

Abstract

This paper presents thermodynamics analysis of spark-ignition (SI) engine. A theoretical model of air-standard Otto cycle having temperature dependent specific heats has been implemented. It was compared to that which uses constant temperature specific heats. Wide range of engine parameters was studied. In most cases there were significant variations between the results obtained by using temperature dependent specific heats with those obtained at constant specific heats especially at high engine speeds. Therefore, it is more realistic to use temperature dependent specific heat. This should be considered in cycle analysis; especially that temperature variation in the actual cycles is quite large.

Original language	British English
Pages (from-to)	1264-1272
Number of pages	9
Journal	International Communications in Heat and Mass Transfer
Volume	33
Issue number	10
DOIs	https://doi.org/10.1016/j.icheatmasstransfer.2006.06.014
State	Published - Dec 2006

Keywords

Otto cycle
SI engine
Temperature dependent specific heats

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10.1016/j.icheatmasstransfer.2006.06.014

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title = "Thermodynamic modeling of spark-ignition engine: Effect of temperature dependent specific heats",

abstract = "This paper presents thermodynamics analysis of spark-ignition (SI) engine. A theoretical model of air-standard Otto cycle having temperature dependent specific heats has been implemented. It was compared to that which uses constant temperature specific heats. Wide range of engine parameters was studied. In most cases there were significant variations between the results obtained by using temperature dependent specific heats with those obtained at constant specific heats especially at high engine speeds. Therefore, it is more realistic to use temperature dependent specific heat. This should be considered in cycle analysis; especially that temperature variation in the actual cycles is quite large.",

keywords = "Otto cycle, SI engine, Temperature dependent specific heats",

author = "E. Abu-Nada and I. Al-Hinti and A. Al-Sarkhi and B. Akash",

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AU - Abu-Nada, E.

AU - Al-Hinti, I.

AU - Al-Sarkhi, A.

AU - Akash, B.

PY - 2006/12

Y1 - 2006/12

N2 - This paper presents thermodynamics analysis of spark-ignition (SI) engine. A theoretical model of air-standard Otto cycle having temperature dependent specific heats has been implemented. It was compared to that which uses constant temperature specific heats. Wide range of engine parameters was studied. In most cases there were significant variations between the results obtained by using temperature dependent specific heats with those obtained at constant specific heats especially at high engine speeds. Therefore, it is more realistic to use temperature dependent specific heat. This should be considered in cycle analysis; especially that temperature variation in the actual cycles is quite large.

AB - This paper presents thermodynamics analysis of spark-ignition (SI) engine. A theoretical model of air-standard Otto cycle having temperature dependent specific heats has been implemented. It was compared to that which uses constant temperature specific heats. Wide range of engine parameters was studied. In most cases there were significant variations between the results obtained by using temperature dependent specific heats with those obtained at constant specific heats especially at high engine speeds. Therefore, it is more realistic to use temperature dependent specific heat. This should be considered in cycle analysis; especially that temperature variation in the actual cycles is quite large.

KW - Otto cycle

KW - SI engine

KW - Temperature dependent specific heats

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EP - 1272

JO - International Communications in Heat and Mass Transfer

JF - International Communications in Heat and Mass Transfer

IS - 10

ER -

Thermodynamic modeling of spark-ignition engine: Effect of temperature dependent specific heats

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Keywords

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