Investigation of Noisy Film Boiling Under Various Thermal Conditions in He II

2000 ◽  
pp. 1017-1024 ◽  
Author(s):  
P. Zhang ◽  
M. Murakami ◽  
R. Z. Wang ◽  
Y. Takashima
Keyword(s):  
Thermal Conditions ◽  
Film Boiling

Research and Modelling on Electrical and Thermal Mode of LEDs Operation in the Luminaire

2018 ◽  
pp. 155-162 ◽  
Author(s):  
Sergei S. Kapitonov ◽  
Anastasia V. Kapitonova ◽  
Sergei Yu. Grigorovich ◽  
Sergei A. Medvedev ◽  
Taher Sobhy
Keyword(s):  
Thermal Conditions ◽  
Operating Mode ◽  
Thermal Processes ◽  
Thermal Mode ◽  
Crystal Temperature ◽  
Premature Failure ◽  
Model Based

In the article, the electrical and thermal processes in the LED lamp with varied parameters are investigated. Voltage and current measurements on all LEDs of the luminaire are carried out in the nominal operating mode. The power allocated to each LED is determined. The calculation of the LED crystal temperature was carried out using the developed thermal LED model based on the results of the measurements and by using “Multisim” program. It has been established that the temperature of the crystals of individual LEDs in the luminaire differ significantly, which leads to unfavourable thermal conditions for them and an increased likelihood of premature failure.

Determination of Vapor Temperature in Film Boiling of Cryoliquids in Channels

2001 ◽  
Vol 32 (4-6) ◽  
pp. 6
Author(s):  
V. P. Firsov ◽  
E. N. Abashichev
Keyword(s):  
Film Boiling ◽  
Vapor Temperature

FLOW FILM BOILING ON A VERTICAL FLAT PLATE AT DIFFERENT SUBCOOLINGS AND FLOW VELOCITIES

Equipment ◽  
2006 ◽  
Author(s):  
Professor V. K. Dhir ◽  
P. K. Meduri ◽  
G. R. Warrier
Keyword(s):  
Flat Plate ◽  
Film Boiling ◽  
Vertical Flat Plate ◽  
Flow Velocities ◽  
Flow Film Boiling
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