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1.
Инвентарный номер: нет.
   
   L 88


   
    Loop thermosyphon thermal management of the avionics of an in-flight entertainment system [Электронный ресурс] / C. Sarno, C. Tantolin, R. Hodot, Yu. F. Maydanik, S. V. Vershinin // Applied Thermal Engineering. - 2013. - Vol.51, №1-2. - P764-769
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
AVIONICS -- COOLING SYSTEM -- LOOP THERMOSYPHON
Аннотация: A new generation of in-flight entertainment systems (IFEs) used on board commercial aircrafts is required to provide more and more services (audio, video, internet, multimedia, phone, etc.). But, unlike other avionics systems most of the IFE equipment and boxes are installed inside the cabin and they are not connected to the aircraft cooling system. The most critical equipment of the IFE system is a seat electronic box (SEB) installed under each passenger seat. Fans are necessary to face the increasing power dissipation. But this traditional approach has some drawbacks: extra cost multiplied by the seat number, reliability and maintenance. The objective of this work is to develop and evaluate an alternative completely passive cooling system (PCS) based on a two-phase technology including heat pipes and loop thermosyphons (LTSs) adequately integrated inside the seat structure and using the benefit of the seat frame as a heat sink. Previous works have been performed to evaluate these passive cooling systems which were based on loop heat pipe. This paper presents results of thermal tests of a passive cooling system of the SEB consisting of two LTSs and R141b as a working fluid. These tests have been carried out at different tilt angles and heat loads from 10 to 100 W. It has been shown that the cooled object temperature does not exceed the maximum given value in the range of tilt angles ±20° which is more wider than the range which is typical for ordinary evolution of passenger aircrafts

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2.
Инвентарный номер: нет.
   
   L 88


   
    Loop thermosyphon thermal management of the avionics of an in-flight entertainment system [Электронный ресурс] / C. Sarno, C. Tantolin, R. Hodot, Yu. F. Maydanik, S. V. Vershinin // Applied Thermal Engineering. - 2013. - Vol.51, №1-2. - P764-769
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
AVIONICS -- COOLING SYSTEM -- LOOP THERMOSYPHON
Аннотация: A new generation of in-flight entertainment systems (IFEs) used on board commercial aircrafts is required to provide more and more services (audio, video, internet, multimedia, phone, etc.). But, unlike other avionics systems most of the IFE equipment and boxes are installed inside the cabin and they are not connected to the aircraft cooling system. The most critical equipment of the IFE system is a seat electronic box (SEB) installed under each passenger seat. Fans are necessary to face the increasing power dissipation. But this traditional approach has some drawbacks: extra cost multiplied by the seat number, reliability and maintenance. The objective of this work is to develop and evaluate an alternative completely passive cooling system (PCS) based on a two-phase technology including heat pipes and loop thermosyphons (LTSs) adequately integrated inside the seat structure and using the benefit of the seat frame as a heat sink. Previous works have been performed to evaluate these passive cooling systems which were based on loop heat pipe. This paper presents results of thermal tests of a passive cooling system of the SEB consisting of two LTSs and R141b as a working fluid. These tests have been carried out at different tilt angles and heat loads from 10 to 100 W. It has been shown that the cooled object temperature does not exceed the maximum given value in the range of tilt angles ±20° which is more wider than the range which is typical for ordinary evolution of passenger aircrafts

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