Inscrição na biblioteca: Guest
Início Arquivos Thermal Letter Representantes Futuras reuniões Assembléia das Conferências Internacionais de Transferência de Calor
International Heat Transfer Conference 8

ISSN: 2377-424X (online)
ISSN: 2377-4371 (flashdrive)

THE EFFECTIVENESS OF HEAT EXCHANGERS WITH ONE SHELL PASS AND AN ODD NUMBER OF TUBE PASSES

Mark S. O'Hare
Naval Postgraduate School Monterey, California

Lawrence Hess
Naval Postgraduate School Monterey, California

Allan D. Kraus
Naval Postgraduate School, Monterey, CA; University of South Florida, Tampa, Florida

DOI: 10.1615/IHTC8.1110
pages 2691-2696

Resumo

A heat exchanger with one shell pass and an odd number of tube passes possesses a possible installation advantage of having the tube side fluid inlet and outlet at opposite ends of the exchanger. In order to exploit this advantage, effectiveness values as a function of capacity rate ratio, R, and number of transfer units, Ntu, are needed for computations pertaining to the design and performance of such an exchanger. This paper addresses the development of the effectiveness data and presents effectiveness values to the requisite precision as polynomial approximations in the range 0.25 ≤ Ntu ≤ 3.25. These approximations are based on numerical data and the paper provides the approximations for both the 1-3 and 1-5 exchangers (one shell pass and three and five tube passes). It is shown that the 1-3 exchanger with two counterflow passes out-performs the 1-2 exchanger and that the 1-5 exchanger with three counterflow passes out-performs the 1-4 exchanger.

Compra $25.00 Check subscription Ética e negligência em publicaçãoes Recomendado ao My Librarian Inserir indicador nessa página