Enhancement of pool boiling heat transfer with electrohydrodynamics and its fundamental study /
20'C, and 19 fins per inch tube at 4C. Results of the
| Main Author: | |
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1998.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | 20'C, and 19 fins per inch tube at 4C. Results of the apparatus was designed and built. The fluids were tested applied voltage levels are 0, 5, and lOkV. boiling apparatus was modified and another high pressure boiling regime to the total enhancements observed. This comparison of charge relaxation time (a function of the convection due to EHD in the isolated bubble nucleate electric properties of the fluid) to the bubble departure electric properties, and the applied electric field was electrohydrodynamics(EHD), has been actively researched in experiments show that the enhancements of pool boiling heat fluid to exhibit enhancement. A study was also conducted investigated to understand the enhancements observed. The needs to be less than the bubble departure time for the of EHD on new refrigerants (R-123, R-134a, R407c, and R-410a) on the smooth tube at operating temperatures of 4C and operating conditions. refrigerants, using the concepts of smooth tube while the other is an enhanced 19 fins per inch study led to the interesting conclusion that this The enhancement of heat transfer in the realm of pool boiling the past decade. This research aims at studying the effect the relation among the fluid thermodynamic properties, the required condition that the charge relaxation time time (a function of fluid thermodynamic properties) proved To conduct this study, an existing low pressure pool to estimate the contribution of enhancements of free total enhancement due to EHD depending upon fluid and transfer varied within the range of 6% to 570% depending tube. The electrode configuration is straight wire and the upon the type of refrigerant, pool temperature, applied voltage and type of evaporator tube surface. Fundamentally with two types of evaporator tube surfaces. One surface is a |
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| Item Description: | "Major subject: Mechanical Engineering". Vita. |
| Physical Description: | xiii, 97 leaves : illustrations ; 28 cm. Also available online. Issued also on microfiche from Lange Micrographics. |
| Bibliography: | Includes bibliographical references: pages 91-94. |