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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Void fraction and pressure drop during external upward two-phase crossflow in tube bundles - part I: Experimental investigation

Full text
Author(s):
Kanizawa, Fabio Toshio ; Ribatski, Gherhardt
Total Authors: 2
Document type: Journal article
Source: INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW; v. 65, p. 200-209, JUN 2017.
Web of Science Citations: 5
Abstract

The present paper is the part I of a broad study concerning void fraction and pressure drop for air-water upward external flow across tube bundles. Experimental results were obtained for liquid and gas superficial velocities ranging from 0.02 to 1.50 m/s and 0.20 to 10.00 m/s, respectively. Void fraction measurements were performed for bubbly flow using a capacitive probe. The test section consisted of a triangular tube bundle counting with 19 mm OD tube and transverse pitch of 24 mm. Initially, the paper describes the test facility and the data regression and experimental procedures. Then, the pressure drop and void fraction measurements are validated based on tests for single-phase flow and quiescent liquid conditions, respectively. Finally, the experimental data are presented and analyzed. In the second part of this study (Part II), a literature review on predictive methods for void fraction and pressure drop is presented. Additionally, these methods are compared with the database presented in Part I and new predictive methods for void fraction and frictional pressure drop are proposed. (C) 2016 Elsevier Inc. All rights reserved. (AU)

FAPESP's process: 15/00854-5 - Characterization of external two-phase flow across tube bundles
Grantee:Fabio Toshio Kanizawa
Support Opportunities: Scholarships abroad - Research Internship - Post-doctor
FAPESP's process: 14/06902-9 - Theoretical and experimental study of flow induced vibration during external two-phase flow across tube bundle
Grantee:Fabio Toshio Kanizawa
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 10/20670-2 - Theoretical and Experimental study of Void Fraction and Flow Pattern Induced Vibration on Tubes Bundle
Grantee:Fabio Toshio Kanizawa
Support Opportunities: Scholarships in Brazil - Doctorate