Heat exchange and friction in a subsonic vapor flux of high-temperature heat pipes

1976 ◽  
Vol 30 (3) ◽  
pp. 258-263
Author(s):  
V. N. Fedorov ◽  
V. Ya. Sasin
Keyword(s):  
High Temperature ◽  
Heat Exchange ◽  
Heat Pipes ◽  
Vapor Flux ◽  
Temperature Heat

Suppression of the Sonic Heat Transfer Limit in High-Temperature Heat Pipes

1989 ◽  
Vol 111 (3) ◽  
pp. 605-610 ◽  
Author(s):  
Flavio Dobran
Keyword(s):  
Heat Transfer ◽  
High Temperature ◽  
Heat Pipes ◽  
Vapor Flow ◽  
Transport Capacity ◽  
Flow Area ◽  
Temperature Heat ◽  
Liquid Evaporation ◽  
Heat Transfer Limit ◽  
Axial Heat

The design of high-performance heat pipes requires optimization of heat transfer surfaces and liquid and vapor flow channels to suppress the heat transfer operating limits. In the paper an analytical model of the vapor flow in high-temperature heat pipes is presented, showing that the axial heat transport capacity limited by the sonic heat transfer limit depends on the working fluid, vapor flow area, manner of liquid evaporation into the vapor core of the evaporator, and lengths of the evaporator and adiabatic regions. Limited comparisons of the model predictions with data of the sonic heat transfer limits are shown to be very reasonable, giving credibility to the proposed analytical approach to determine the effect of various parameters on the axial heat transport capacity. Large axial heat transfer rates can be achieved with large vapor flow cross-sectional areas, small lengths of evaporator and adiabatic regions or a vapor flow area increase in these regions, and liquid evaporation in the evaporator normal to the main flow.

Planar High Temperature Heat Pipes for SOFC/SOEC Stack Applications

Fuel Cells ◽  
2014 ◽  
Vol 14 (3) ◽  
pp. 479-488 ◽  
Author(s):  
M. Dillig ◽  
J. Leimert ◽  
J. Karl
Keyword(s):  
High Temperature ◽  
Heat Pipes ◽  
Temperature Heat

High Temperature Heat Pipes for Space Fission Power

2013 ◽  
Author(s):  
Kara L. Walker ◽  
Calin Tarau ◽  
William G. Anderson
Keyword(s):  
High Temperature ◽  
Heat Pipes ◽  
Temperature Heat ◽  
Fission Power

A high temperature heat exchange calorimeter

1970 ◽  
Vol 3 (11) ◽  
pp. 889-891 ◽  
Author(s):  
J L Orehotsky ◽  
K Schröder
Keyword(s):  
High Temperature ◽  
Heat Exchange ◽  
Temperature Heat

Numerical Simulation Study on Local Enhanced Heat Transfer for High Temperature Heat Pipe Heat Exchanger

2011 ◽  
Vol 396-398 ◽  
pp. 897-903
Author(s):  
Shi Mei Sun ◽  
Jing Min Zhou
Keyword(s):  
Heat Transfer ◽  
High Temperature ◽  
Heat Exchanger ◽  
Temperature Distribution ◽  
Heat Pipe ◽  
Heat Pipes ◽  
Fluid Temperature ◽  
Temperature Heat ◽  
High Temperature Heat Pipe ◽  
Pipe Heat

A High Temperature Heat Pipe Heat Exchanger Consists of Heat Pipes Filled with Different Working Media inside. in Different Temperature Zones, Heat Pipes with Different Working Media Are Linked Safely by Controlling the Vapor Temperature, the Media inside the Heat Pipe. the Vapor Temperature inside the Pipe Is Heavily Affected by the Temperature Field of Fluid outside the Heat Pipes and the Heat Transfer Performance inside the Heat Pipe, while the Heat Transfer Performance inside the Pipe in Turn Has a Bearing on the Temperature Distribution of Fluid outside the Pipe. to Coordinate the Fluid Temperature Distribution both inside and outside the Pipes, Study on Local Heat Transfer Enhancement Has Been Conducted on High Temperature Heat Pipe Heat Exchanger in this Article, and Cfd Computational Software Was Used to Make Rational and Accurate Prediction of Fluid Temperature Distribution both inside and outside the Pipes, so as to Provide Economic and Reliable Design Basis for High Temperature Heat Pipe Heat Exchanger.

High-temperature heat exchange in the flow of a gas in a slit-type quenching apparatus

1982 ◽  
Vol 43 (1) ◽  
pp. 725-729
Author(s):  
I. I. Borisov ◽  
V. V. Naumov ◽  
T. V. Mikhalevskaya ◽  
V. A. Reisig
Keyword(s):  
High Temperature ◽  
Heat Exchange ◽  
Temperature Heat ◽  
Quenching Apparatus

Theoretical and experimental study of capillary constraints on heat transfer in high-temperature heat pipes

1980 ◽  
Vol 38 (5) ◽  
pp. 469-473
Author(s):  
M. N. Ivanovskii ◽  
I. V. Yagodkin ◽  
V. P. Sorokin ◽  
L. M. Kuznetsova
Keyword(s):  
Heat Transfer ◽  
Experimental Study ◽  
High Temperature ◽  
Heat Pipes ◽  
Temperature Heat
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