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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Void fraction and pressure drop during external upward two-phase cross flow in tube bundles - part II: Predictive methods

Texto completo
Autor(es):
Kanizawa, Fabio Toshio ; Ribatski, Gherhardt
Número total de Autores: 2
Tipo de documento: Artigo Científico
Fonte: INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW; v. 65, p. 210-219, JUN 2017.
Citações Web of Science: 2
Resumo

The present paper is the Part II of a broad study concerning void fraction and pressure drop for air-water upward external flow across tube bundles. In the Part I, the experimental facility and the data regression procedures were described and the experimental results are presented and discussed. Initially, Part II presents a literature review concerning void fraction and pressure drop predictive methods available in the open literature for two-phase upward flow across tube bundles. Next, the methods from literature are compared among them and with the database presented in paper Part I. Significant discrepancies are observed among the predictive methods, and deviations as high as two orders of magnitude are verified among the predicted values of pressure drop. Then, a new void fraction predictive method is proposed based on the experimental results and on the minimum kinetic energy principle. This method provides satisfactory predictions of the results described in paper Part I and also of independent data from the literature. A new predictive method for frictional pressure drop during two-phase flow based on two-phase multiplier is also proposed. This method predicted 94% of the experimental data obtained in the present study within an error margin of 30%, and also provides accurate predictions of independent results for triangular tube bundles gathered in the open literature. (C) 2016 Elsevier Inc. All rights reserved. (AU)

Processo FAPESP: 10/20670-2 - Estudo teórico e experimental da fração de vazio e da vibração induzida pelo padrão de escoamento externamente a banco de tubos
Beneficiário:Fabio Toshio Kanizawa
Linha de fomento: Bolsas no Brasil - Doutorado
Processo FAPESP: 14/06902-9 - Estudo teórico e experimental da vibração induzida por escoamentos bifásicos externos a banco de tubos
Beneficiário:Fabio Toshio Kanizawa
Linha de fomento: Bolsas no Brasil - Pós-Doutorado
Processo FAPESP: 15/00854-5 - Caracterização de escoamento bifásico externo a banco de tubos
Beneficiário:Fabio Toshio Kanizawa
Linha de fomento: Bolsas no Exterior - Estágio de Pesquisa - Pós-Doutorado