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Tanongkiat Kiatsiriroat. Heat transfer coefficients of thermosyphon heat pipe at medium operating temperature. (). King Mongkut's University of Technology Thonburi. KMUTT Library. : , 2000.
Heat transfer coefficients of thermosyphon heat pipe at medium operating temperature
Name: Atipong Nuntaphan
Organization :
King Mongkut's University of Technology Thonburi. School of Energy and Materials
Name: Jirawan Tiansuwan
Organization :
King Mongkut's University of Technology Thonburi. School of Energy and Materials
Name: Tanongkiat Kiatsiriroat
Organization :
Chiang Mai University. Department of Mechanical Engineering
keyword:
Heat pipes
Abstract:
This research work studied the heat transfer coefficient of thermosyphon heat pipe at medium operating temperature. The pipe is 100 cm stainless steel tube with 40 cm evaporator and condenser sections and 20 cm for adiabatic section. Hot oil bath and cooling water are used as heat source and heat sink respectively. Nine points of thermocouples are inserted into the pipe for measuring inside temperatures along the thermosyphon and the other nine points also for measuring the surface temperature at the same positions. Water, ethanol, methanol and acetone are used as working fluids with 15 % filling ratio. The hot oil temperature is varies from 40-120 C and the temperature of cooling water is kept at 30 C at constant flow rate. The measured inlet and outlet temperature od cooling water are used to calculate the heat transfer rate of the thermosyphon, From the experiments it is found that when the hot oil temperature in less than 60 C, the heat transfer rate of water is lower than those of other working fluids. However at higher temperature heat source, the heat transfer rate of water is the best. Boiling equation of Rohsenow is modified to predict the boiling heat transfer cofficient of the thermosyphon at varies types of working fluids. For the condensor section, It is found that modified Nusselt correlation of condensation agrees with the experiments
King Mongkut's University of Technology Thonburi. KMUTT Library
Address:
BANGKOK
Email:
info.lib@mail.kmutt.ac.th
Created:
2000
Modified:
2559-08-08
Issued:
2016-07-26
BibliograpyCitation :
The first Regional Conference on Energy Technology Towards a Clean Environment, The Empress Hotel, Chiang Mai, Thailand 1-2 December 2000 p.48-53
CallNumber:
12001564
eng
ใช้เวลา
0.030892 วินาที
Atipong Nuntaphan
| Title | Contributor | Type |
|---|---|---|
| Performance analysis of heat pipe heat exchanger using binary working fluids
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี Atipong Nuntaphan | Tanongkiat Kiatsiriroat Jirawan Tiansuwan | วิทยานิพนธ์/Thesis |
| Feasibility of using ice thermal energy storage with direct contact evaporator in an office building
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี Nat Vorayos;Tanongkiat Kiatsiriroat ;Atipong Nuntaphan | บทความ/Article | |
| Heat transfer coefficients of thermosyphon heat pipe at medium operating temperature
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี Atipong Nuntaphan;Jirawan Tiansuwan;Tanongkiat Kiatsiriroat | บทความ/Article |
Jirawan Tiansuwan
| Title | Contributor | Type |
|---|
Tanongkiat Kiatsiriroat
| Title | Contributor | Type |
|---|