Satish G. KANDLİKAR

3426

Mikrokanallarda akış tipi kaynama ile ısı trasferi konusunda son gelişmeler

Kandlikar (2002a) mikro kanallarda akış tipi kaynama ile ilgili temel hususlara dikkati çeken bir makale yayınladı. Bu hususlar bu çalışmada tekrar incelenmiştir. Mikro kanallarda akış tipi kaynama, çok yüksek ısıl performans kapasitesi nedeniyle yoğun bir çalışma alanıdır. Uygulama sırasında ortaya çıkabilecek başlıca sorunlardan bir tanesi kabarcığın çekirdekleşmesi ve aniden gelişmesi sebebiyle ortaya çıkan kararsızlıklardır. Bu makale akışın dengelenmesi ve mikrokanallardaki akış tipi kaynamanın ısı geçişi ve basınç düşüşüne ait karakteristikleri ortaya koyan çabaların bir incelemesini sunmaktadır. Isı transferini ve kritik ısı akısını tanimlayan modellerin kararlı kaynama koşullarında elde edilen güvenilir deneysel verilerin ardından gelmesi beklenmektedir.

Recent developments in flow boiling heat transfer in microchannels

Kandlikar (2002a) published an article outlining the fundamental issues related to flow boiling in microchannels. These issues are revisited in the current paper. The flow boiling in microchannels is an area of intense research due to its extremely high thermal performance capability. One of the major hurdles in its practical implementation is posed by the instabilities arising due to bubble nucleation and its rapid growth. This paper presents a review of the efforts on stabilizing the flow and establishing the heat transfer and pressure drop characteristics during flow boiling in microchannels. The models describing heat transfer and critical heat flux are expected to follow after reliable experimental data have been obtained under stable boiling conditions.
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  • 31.Mukherjee, A., and Kandlikar, S. G., 2005, "Numerical Study of the Effect of Wet Constriction on Bubble Growth during Flow Boiling in Microchannels" Proceedings of the Third Intemational Conference on Microchannels and Minichannels,Toronto,Canada,June 13-15.2005.ASME
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Mühendis ve Makina-Cover
  • ISSN: 1300-3402
  • Yayın Aralığı: Yılda 4 Sayı
  • Başlangıç: 1957
  • Yayıncı: TMMOB MAKİNA MÜHENDİSLERİ ODASI
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