BOILING HEAT TRANSFER ON HORIZONTAL TUBE BUNDLES.

Yasunobu Fujita; Haruhiko Ohta; Keisuke Yoshida; Sumitomo Hidaka; Yukifumi Toyama; Kaneyasu Nishikawa

BOILING HEAT TRANSFER ON HORIZONTAL TUBE BUNDLES.

Yasunobu Fujita, Haruhiko Ohta, Keisuke Yoshida, Sumitomo Hidaka, Yukifumi Toyama, Kaneyasu Nishikawa

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Nucleate boiling heat transfer characteristics for a tube in a bundle differ from those for a single tube in a pool and this difference is known as tube bundle effect. There exist two bundle effects, positive and negative. The positive bundle effect enhances heat transfer due to convective flow induced by rising bubbles generated from the lower tubes, while the negative bundle effect deteriorates heat transfer due to vapor blanketing caused by accumulation of bubbles. In this study, experiments are performed in detail by using bundles of small scale, and effects of heat flux distribution, pressure and tube location are clarified. Furthermore, some consideration on the mechanisms of occurrence of 'tube bundle effect' are given and a method for prediction of heat transfer rate is proposed.

Original language	English
Title of host publication	Unknown Host Publication Title
Editors	Bu-Xuan Wang
Publisher	Hemisphere Publ Corp
Pages	393-400
Number of pages	8
ISBN (Print)	0891165711
Publication status	Published - Dec 1 1987

All Science Journal Classification (ASJC) codes

Engineering(all)

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title = "BOILING HEAT TRANSFER ON HORIZONTAL TUBE BUNDLES.",

abstract = "Nucleate boiling heat transfer characteristics for a tube in a bundle differ from those for a single tube in a pool and this difference is known as tube bundle effect. There exist two bundle effects, positive and negative. The positive bundle effect enhances heat transfer due to convective flow induced by rising bubbles generated from the lower tubes, while the negative bundle effect deteriorates heat transfer due to vapor blanketing caused by accumulation of bubbles. In this study, experiments are performed in detail by using bundles of small scale, and effects of heat flux distribution, pressure and tube location are clarified. Furthermore, some consideration on the mechanisms of occurrence of 'tube bundle effect' are given and a method for prediction of heat transfer rate is proposed.",

author = "Yasunobu Fujita and Haruhiko Ohta and Keisuke Yoshida and Sumitomo Hidaka and Yukifumi Toyama and Kaneyasu Nishikawa",

year = "1987",

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T1 - BOILING HEAT TRANSFER ON HORIZONTAL TUBE BUNDLES.

AU - Fujita, Yasunobu

AU - Ohta, Haruhiko

AU - Yoshida, Keisuke

AU - Hidaka, Sumitomo

AU - Toyama, Yukifumi

AU - Nishikawa, Kaneyasu

PY - 1987/12/1

Y1 - 1987/12/1

N2 - Nucleate boiling heat transfer characteristics for a tube in a bundle differ from those for a single tube in a pool and this difference is known as tube bundle effect. There exist two bundle effects, positive and negative. The positive bundle effect enhances heat transfer due to convective flow induced by rising bubbles generated from the lower tubes, while the negative bundle effect deteriorates heat transfer due to vapor blanketing caused by accumulation of bubbles. In this study, experiments are performed in detail by using bundles of small scale, and effects of heat flux distribution, pressure and tube location are clarified. Furthermore, some consideration on the mechanisms of occurrence of 'tube bundle effect' are given and a method for prediction of heat transfer rate is proposed.

AB - Nucleate boiling heat transfer characteristics for a tube in a bundle differ from those for a single tube in a pool and this difference is known as tube bundle effect. There exist two bundle effects, positive and negative. The positive bundle effect enhances heat transfer due to convective flow induced by rising bubbles generated from the lower tubes, while the negative bundle effect deteriorates heat transfer due to vapor blanketing caused by accumulation of bubbles. In this study, experiments are performed in detail by using bundles of small scale, and effects of heat flux distribution, pressure and tube location are clarified. Furthermore, some consideration on the mechanisms of occurrence of 'tube bundle effect' are given and a method for prediction of heat transfer rate is proposed.

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M3 - Conference contribution

AN - SCOPUS:0023545174

SN - 0891165711

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BT - Unknown Host Publication Title

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