On numerical modelling of heat transfer and fluid flow in a scraped surface heat exchanger

• Autorzy: Błasiak P. , Gnutek Z.
• Języki publikacji: EN

Abstrakty

EN

Steady state two-dimensional numerical simulation of laminar heat transfer and fluid flow in a scraped surface heat exchanger (SSHE) is presented. Typical SSHE consists of a stator, rotating shaft and scraping blades. Due to symmetry only a quarter of the heat exchanger is modelled. Governing equations for transport of mass, momentum and energy are discretised and solved with the use of commercial CFD code. The results are presented in a nondimensional form for velocity, pressure and temperature distributions. Local and averaged Nusselt number along the stator wall are calculated and depicted in graphs. It was found that the thirty fold increase of the cReynolds number, leads to heat transfer enhancement rate by three times.

Słowa kluczowe

EN

scraped surface heat exchanger; Nusselt number; thermal boundary layer

PL

wymiennik ciepła; liczby Nusselta; termiczna warstwa przyścienna

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2014
• Tom: Vol. 35, no. 3
• Strony: 251--264
• Opis fizyczny: Bibliogr. 9 poz., il.

Twórcy

autor

Błasiak P.

• Wroclaw University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

autor

Gnutek Z.

• Wroclaw University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

Bibliografia

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