Wyniki wyszukiwania - Biblioteka Nauki

Ten serwis zostanie wyłączony 2025-02-11.

Nowa wersja platformy, zawierająca wyłącznie zasoby pełnotekstowe, jest już dostępna.
Przejdź na https://bibliotekanauki.pl

Ograniczanie wyników

1 Archives of Thermodynamics

1 2009

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: żeberko płytowe wymiennika ciepła

Sortuj według:

Ogranicz wyniki do:

Modelling of air flow and heat transfer in compact heat exchangers

100%

Cebula A. , Taler D.

Archives of Thermodynamics

2009

tom Vol. 30, no. 4

45-66

The comparison of experimental and CFD results demonstrate that the CFD simulation can be used for design and optimisation of heat exchangers. The study systematically analyses the effect of various design parameters on heat transfer characteristics of the fin-and-tube heat exchanger with two tube rows. The heat transfer in the tube-and-fin heat exchanger was studied using an analytical mathematical model and was also simulated by means of the commercially available CFD code FLUENT. It has been found from the numerical CFD simulation that the second-row finned tube is less effective as the heat transfer surfaces than that in the first row. The heat transfer rate at the second row tube is especially low due to the presence of the wakes in front and behind the tube. Having obtained similar results with both techniques the performance of fin-and-tube heat exchangers with circular and oval tubes in in-line and staggered tube arrangements was simulated using CFD. The influence of heat transfer conductivity of the fin material and the influence of the tube arrangement on the fin efficiency has been evaluated.