ELECTROHYDRODYNAMIC PUMPING IN CABLE PIPES.

J. M. Crowley; J. C. Chato; R. Abdulhadi; D. Kelly; D. Kervin; P. Krein; B. Kuo; H. III25C Ochs; J. Seyed-Yagoobi

ELECTROHYDRODYNAMIC PUMPING IN CABLE PIPES.

J. M. Crowley, J. C. Chato, R. Abdulhadi, D. Kelly, D. Kervin, P. Krein, B. Kuo, H. III25C Ochs, J. Seyed-Yagoobi

Research output: Contribution to journal › Article › peer-review

Abstract

Many oil-insulated electric power cables are limited by heat buildup caused in part by the low thermal conductivity of the oil. Circulation of the oil is known to reduce the cable temperature, but can lead to excessive pressure buildup on long cables when using conventional pumping methods. An alternate pumping method using distributed electric fields to avoid this pressure buildup is described here. Electrohydrodynamic (EHD) pumping was studied both theoretically and experimentally for possible application in underground cable cooling. Theoretical studies included both analytical and finite-element analysis of the flow patterns driven by traveling electric fields. Experimentally, flow rates in a cable-pipe model were measured under a wide variety of operating conditions. Theory and experiment are in agreement for velocities below 10 cm/s, but higher velocities could not be reached in the experiment, due to increased electroconvection and, possibly, turbulence.

Original language	English (US)
Pages (from-to)	var paging
Journal	Electric Power Research Institute, (Report) EPRI EL
State	Published - Jan 1 1983
Externally published	Yes

ASJC Scopus subject areas

Electrical and Electronic Engineering

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title = "ELECTROHYDRODYNAMIC PUMPING IN CABLE PIPES.",

abstract = "Many oil-insulated electric power cables are limited by heat buildup caused in part by the low thermal conductivity of the oil. Circulation of the oil is known to reduce the cable temperature, but can lead to excessive pressure buildup on long cables when using conventional pumping methods. An alternate pumping method using distributed electric fields to avoid this pressure buildup is described here. Electrohydrodynamic (EHD) pumping was studied both theoretically and experimentally for possible application in underground cable cooling. Theoretical studies included both analytical and finite-element analysis of the flow patterns driven by traveling electric fields. Experimentally, flow rates in a cable-pipe model were measured under a wide variety of operating conditions. Theory and experiment are in agreement for velocities below 10 cm/s, but higher velocities could not be reached in the experiment, due to increased electroconvection and, possibly, turbulence.",

author = "Crowley, {J. M.} and Chato, {J. C.} and R. Abdulhadi and D. Kelly and D. Kervin and P. Krein and B. Kuo and Ochs, {H. III25C} and J. Seyed-Yagoobi",

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T1 - ELECTROHYDRODYNAMIC PUMPING IN CABLE PIPES.

AU - Crowley, J. M.

AU - Chato, J. C.

AU - Abdulhadi, R.

AU - Kelly, D.

AU - Kervin, D.

AU - Krein, P.

AU - Kuo, B.

AU - Ochs, H. III25C

AU - Seyed-Yagoobi, J.

PY - 1983/1/1

Y1 - 1983/1/1

N2 - Many oil-insulated electric power cables are limited by heat buildup caused in part by the low thermal conductivity of the oil. Circulation of the oil is known to reduce the cable temperature, but can lead to excessive pressure buildup on long cables when using conventional pumping methods. An alternate pumping method using distributed electric fields to avoid this pressure buildup is described here. Electrohydrodynamic (EHD) pumping was studied both theoretically and experimentally for possible application in underground cable cooling. Theoretical studies included both analytical and finite-element analysis of the flow patterns driven by traveling electric fields. Experimentally, flow rates in a cable-pipe model were measured under a wide variety of operating conditions. Theory and experiment are in agreement for velocities below 10 cm/s, but higher velocities could not be reached in the experiment, due to increased electroconvection and, possibly, turbulence.

AB - Many oil-insulated electric power cables are limited by heat buildup caused in part by the low thermal conductivity of the oil. Circulation of the oil is known to reduce the cable temperature, but can lead to excessive pressure buildup on long cables when using conventional pumping methods. An alternate pumping method using distributed electric fields to avoid this pressure buildup is described here. Electrohydrodynamic (EHD) pumping was studied both theoretically and experimentally for possible application in underground cable cooling. Theoretical studies included both analytical and finite-element analysis of the flow patterns driven by traveling electric fields. Experimentally, flow rates in a cable-pipe model were measured under a wide variety of operating conditions. Theory and experiment are in agreement for velocities below 10 cm/s, but higher velocities could not be reached in the experiment, due to increased electroconvection and, possibly, turbulence.

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