Energetic and exergetic analyses of a variable compression ratio spark ignition gas engine

Javaheri, Ahmad; Esfahanian, Vahid; Salavati-Zadeh, Ali; Darzi, Mahdi

doi:10.1016/j.enconman.2014.09.009

Cited by 34 publications

(17 citation statements)

References 16 publications

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“…However, because the combustion was not 100% conserved as useful energy, the remainder was wasted in water cooling energy, exhaust energy and unaccounted energy in terms of lubrication and friction losses. Therefore, it is important to understand the energy distribution to fully utilise the energy losses from the engine at different operating conditions and with various types of fuels [94]. In this study, the distribution of the energy was expressed using a Sankey diagram.…”

Section: Resultsmentioning

confidence: 99%

Experimental investigation of combustion, emissions and thermal balance of secondary butyl alcohol-gasoline blends in a spark ignition engine

Yusri

Mamat

Azmi

et al. 2016

Energy Conversion and Management

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Section: Resultsmentioning

confidence: 99%

Experimental investigation of combustion, emissions and thermal balance of secondary butyl alcohol-gasoline blends in a spark ignition engine

Yusri

Mamat

Azmi

et al. 2016

Energy Conversion and Management

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“…Ekserji, sistemin çevre ile mekanik, ısıl ve kimyasal olarak dengeye ulaşana dek her motor çevriminde elde edilebilen yararlı iş olarak tanımlanabilir. İçten yanmalı motorlarda yakıt tarafından sağlanan ekserji, efektif güç ekserjisi (faydalı iş), egzoz ekserjisi, ısı transferi ile meydana gelen ekserji ve yanma sonucu yıkılan ekserji olarak farklı türlere ayrılır [17].…”

Section: Ekserji Analiziunclassified

Sıkıştırma ile Ateşlemeli Motorlarda Bilgisayar Destekli Enerji ve Ekserji Analizi

Yılmaz

2019

International Journal of Advances in Engineering and Pure Sciences

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ÖzKaynakları daha verimli kullanmanın en iyi yolu, enerji ve ekserji arasındaki ilişkiyi anlamaktır. Termodinamiğin birinci kanunu enerji analizi ile ilişkilidir. Bu kanun enerjinin niceliği ile alakalıdır. Enerji analizi sistemin enerji ve entalpi transferlerini açıklamaya yardımcı olur. Enerji yok edilemezken ekserji yok edilebilir. Ekserji bir sistemden elde edilebilecek maksimum teorik iş olarak tanımlanır. Diğer taraftan ekserji analizi termodinamiğin ikinci yasasına dayanır. Termodinamiğin ikinci kanunu enerjinin niteliği ile alakalıdır. Bir sistemin kullanılabilirliği ekserji analizi ile belirlenebilir. Bir sistemin termodinamik detaylarının belirlenmesi istenildiğinde hem enerji, hem de ekserji analizi yapılmalıdır.Ekserji ve enerji analizleri çeşitli alanlara uygulanabilir. Ekserji analizi, içten yanmalı motorlar konusunda önemli bir rol oynamaktadır. Bu çalışmada enerji ve ekserji analizi yapabilen bir programın tanıtımı ve yapısı gösterilmiştir. Program sayesinde hızlı ve güvenilir sonuçlar elde edilebilecektir.Anahtar Kelimeler: Enerji analizi, Ekserji analizi, İçten yanmalı motor, Bilgisayar destekli analiz AbstractThe best way of using the resources more efficiently is understanding the relationship between energy and exergy. The first law of thermodynamics associates with the energy analysis. This law of thermodynamics is about quantity of energy. Energy analysis helps explaining the energy and enthalpy transfers of the system. Energy cannot be destroyed but exergy can be destroyed. Exergy is defined as the maximum theoretical work obtained from a system. On the other hand, the exergy analysis is based on the second law of thermodynamic. The second law of thermodynamics is about quality of energy. The availability of the system can be described by the exergy analysis. If the thermodynamic details of a system want to be known, both energy and exergy analysis have to be applied to system. Energy and exergy analyses are applied in different fields. Exergy analysis has an important role in internal combustion engines. In this study, introduction and structure of an energy and exergy analysis program will be showed. This program will provide fast and reliable results.

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“…For a 100% producer gas fueled SI engine, important modifications affecting engine performance would include changes to CR, spark ignition timing, air/fuel ratio and combustion chamber configuration [3,[13][14][15]. Increasing CR was thought to give a lesser extent of power de-rating.…”

Section: Introductionmentioning

confidence: 99%

Performance and emissions of a modified small engine operated on producer gas

Homdoung

Tippayawong

Dussadee

2015

Energy Conversion and Management

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Energetic and exergetic analyses of a variable compression ratio spark ignition gas engine

Cited by 34 publications

References 16 publications

Experimental investigation of combustion, emissions and thermal balance of secondary butyl alcohol-gasoline blends in a spark ignition engine

Experimental investigation of combustion, emissions and thermal balance of secondary butyl alcohol-gasoline blends in a spark ignition engine

Sıkıştırma ile Ateşlemeli Motorlarda Bilgisayar Destekli Enerji ve Ekserji Analizi

Performance and emissions of a modified small engine operated on producer gas

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