Döner tip rejeneratör diferansiyel denklemlerinin çözümü için en uygun sınır şartlarının belirlenmesi

Year 2020, Volume: 35 Issue: 4, 2061 - 2074, 21.07.2020

Şaban Ünal

https://doi.org/10.17341/gazimmfd.563263

Abstract

Döner tip rejeneratörler, atık ısıdan faydalanarak
enerji tasarrufu sağlanması amacıyla iklimlendirme sistemleri gibi düşük
sıcaklık uygulamalarında da kullanılmaktadır. Bu çalışmada, döner tip
rejeneratörler için geliştirilen matematiksel model sonlu farklar yöntemi
kullanılarak çözülmüş ve bu yöntemde kullanılacak sınır şartlarının çözüm
üzerindeki etkileri araştırılmıştır. Periyotlar arası geçiş noktalarında iki
farklı sınır şartı kullanılmıştır. Bir periyottan diğer periyoda (sıcak
periyottan soğuk periyoda ya da soğuk periyottan sıcak periyoda) geçiş
noktalarında, sınır şartı olarak doğrudan akışkan sıcaklığını vermek yerine, bu
noktalarda akışkanda iletimle ısı transferi olmadığı varsayımının daha doğru sonuçlar
verdiği ortaya konmuştur.

Keywords

Döner tip rejeneratör, sayısal çözüm, sonlu farklar yöntemi

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