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Electric field effects on boiling heat transfer of liquid nitrogen

Electric field effects on boiling heat transfer of liquid nitrogen
Electric field effects on boiling heat transfer of liquid nitrogen
This paper describes an experimental study into the influence of a d.c. uniform electric field on boiling heat transfer characteristics of liquid nitrogen. The electric field effect on the onset of boiling, nucleate boiling curve, hysteresis phenomenon and critical heat transfer were quantitatively investigated using a mesh-plane electrode system. For this purpose, a novel copper block electrode with temperature measurement and vacuum heat insulation was designed and manufactured. Moreover, a heat transfer model based on this electrode geometry has been developed in order to provide some useful data for the electrode design and assist temperature calculations. Detailed heat transfer processes appearing on the copper surface were observed and monitored using a high-speed camera. The experimental results show that electric fields have an obvious effect on boiling heat transfer of liquid nitrogen.
0011-2275
379-389
Wang, P
9cbcc0c1-a742-4b52-94ec-58632717c9ed
Lewin, P L
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
Swaffield, D J
31f6f52e-fb48-44f9-99d3-3cbd2539f1b9
Chen, G
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Wang, P
9cbcc0c1-a742-4b52-94ec-58632717c9ed
Lewin, P L
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
Swaffield, D J
31f6f52e-fb48-44f9-99d3-3cbd2539f1b9
Chen, G
3de45a9c-6c9a-4bcb-90c3-d7e26be21819

Wang, P, Lewin, P L, Swaffield, D J and Chen, G (2009) Electric field effects on boiling heat transfer of liquid nitrogen. Cryogenics, 49 (8), 379-389.

Record type: Article

Abstract

This paper describes an experimental study into the influence of a d.c. uniform electric field on boiling heat transfer characteristics of liquid nitrogen. The electric field effect on the onset of boiling, nucleate boiling curve, hysteresis phenomenon and critical heat transfer were quantitatively investigated using a mesh-plane electrode system. For this purpose, a novel copper block electrode with temperature measurement and vacuum heat insulation was designed and manufactured. Moreover, a heat transfer model based on this electrode geometry has been developed in order to provide some useful data for the electrode design and assist temperature calculations. Detailed heat transfer processes appearing on the copper surface were observed and monitored using a high-speed camera. The experimental results show that electric fields have an obvious effect on boiling heat transfer of liquid nitrogen.

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Published date: 1 August 2009
Organisations: Electronics & Computer Science, EEE

Identifiers

Local EPrints ID: 267762
URI: https://eprints.soton.ac.uk/id/eprint/267762
ISSN: 0011-2275
PURE UUID: f12e2e20-400f-42c7-ab64-8d7baf194d2d

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Date deposited: 07 Aug 2009 11:41
Last modified: 18 Jul 2017 07:00

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