Computer Aided Energy and Exergy Analysis in Compression Ignition Engines

Öz

The 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.

Anahtar Kelimeler

• Energy analysis,Exergy analysis,Internal combustion engine,Computer aided analysis

Sıkıştırma ile Ateşlemeli Motorlarda Bilgisayar Destekli Enerji ve Ekserji Analizi

Öz

Kaynakları 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

Kaynakça

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