Computer Aided Energy and Exergy Analysis in Compression Ignition Engines

Yıl 2019, Cilt: 31 Sayı: 3, 201 - 207, 01.09.2019

İlker Yılmaz

https://doi.org/10.7240/jeps.482395

Cited By: 1

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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