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Общее количество найденных документов : 34
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 1-10    11-20   21-30   31-34 
1.
Инвентарный номер: нет.
   
   L 88

   
    Loop heat pipes and evaporators with advanced characteristics [Text] / Yu. F. Maydanik, S. V. Vershinin, V. G. Pastukhov, D. Gluck, C. Gerhard // Proceedings of the CPL-98 International Workshop on Capillary Pumped Two-Phase Loops (Los Angeles, USA, March 2-3, 1998). - P2. 4-1-2. 4-11
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
ТРУБА КОНТУРНАЯ -- КОНТУРНАЯ ТРУБА -- ТРУБА ТЕПЛОВАЯ -- ТЕПЛОВАЯ ТРУБА -- ИСПАРИТЕЛИ

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2.
Инвентарный номер: нет.
   
   P 31

    Pastukhov, V. G.
    Development and investigation of a cooler for electronics on the basis of two-phase loop thermosyphons / V. G. Pastukhov, Yu. F. Maydanik, V. I. Dmitrin // Heat Pipe Science and Technology, An International Journal , vol. - Vol.1, №1. - С. 47-57
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
LOOP THERMOSYPHON -- EVAPORATOR -- CAPILLARY STRUCTURE,
Аннотация: The objective of this work was to develop a device for cooling electronic elements with a heat power up to 30 W by its rejection and dissipation in the ambient by free air convection. The device specification assigned the temperature range of the ambient conditions from −40 to +105° C and the available space of 30(W) × 120(H) × 200(L) mm. As a result a hybrid scheme based on a loop thermosyphon was proposed, where the evaporator embodied the capillary structure. In such a scheme, the return working fluid flow was ensured by the combined action of the gravity and capillary forces. Several prototypes with different loop and evaporator designs were tested in laboratory conditions. Water and heptane were used as working fluids. The experiments showed that the role of the capillary structure locally placed in the evaporator can be efficiently implemented by both highly porous cellular materials and capillary grooves made on the evaporating surface. It is also shown that heptane can be effectively used as a working fluid which is appropriate for the temperature range requirements. At the same time the device has good mass-and-size characteristics and total thermal resistance under a nominal heat load of about 1.7° C/W

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3.
Инвентарный номер: нет.
   
   M 43

    Maydanik, Yu. F.
    Review: Loop heat pipes with flat evaporators [Electronic resource] / Yu. F. Maydanik, M. A. Chernysheva, V. G. Pastukhov. - [Б. м. : б. и.]. - Систем. требования: http://www.scopus.com/record/display.url?eid=2-s2.0-84898450074&origin=resultslist&sort=plf-f&src=s&st1=Maydanik&st2=YU.+F. - 27.08.2014. - Bibliogr. : p. 306-307 (60 ref.). - Б. ц.
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
ELECTRONICS COOLING -- LOOP HEAT PIPE -- FLAT EVAPORATOR
Аннотация: The paper contains an analytical review of developments, results of tests and simulation of loop heat pipes (LHPs) with disk-shaped, rectangular and flat-oval evaporators. Two main directions have been noted in the development of flat evaporators, which may be arbitrarily separated into evaporators with opposite replenishment (EORs) and evaporators with longitudinal replenishment (ELRs). The bodies of such evaporators are made of stainless steel, copper, aluminum. For making wicks use is made of sintered powders and mesh of stainless steel, nickel, titanium, copper, polytetrafluoroethylene (PTFE) and ceramics. Monoporous and biporous capillary structures are considered. Water, ammonia, methanol, ethanol, and acetone have been tested as working fluids. The best results were shown by the combination "copper-copper-water" at temperatures above 70 °C, when on trials an evaporator thermal resistance of less than 0.01°C/W and a heat flux close to 1000 W/cm2 were achieved. For temperatures below 70°C the most efficient combination is "stainless steel-nickel-ammonia".

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4.
Инвентарный номер: нет.
   
   P 31

    Pastukhov, V. G.
    Development and investigation of a cooler for electronics on the basis of two-phase loop thermosyphons / V. G. Pastukhov, Yu. F. Maydanik, V. I. Dmitrin // Heat Pipe Science and Technology, An International Journal , vol. - Vol.1, №1. - С. 47-57
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
LOOP THERMOSYPHON -- EVAPORATOR -- CAPILLARY STRUCTURE,
Аннотация: The objective of this work was to develop a device for cooling electronic elements with a heat power up to 30 W by its rejection and dissipation in the ambient by free air convection. The device specification assigned the temperature range of the ambient conditions from −40 to +105° C and the available space of 30(W) × 120(H) × 200(L) mm. As a result a hybrid scheme based on a loop thermosyphon was proposed, where the evaporator embodied the capillary structure. In such a scheme, the return working fluid flow was ensured by the combined action of the gravity and capillary forces. Several prototypes with different loop and evaporator designs were tested in laboratory conditions. Water and heptane were used as working fluids. The experiments showed that the role of the capillary structure locally placed in the evaporator can be efficiently implemented by both highly porous cellular materials and capillary grooves made on the evaporating surface. It is also shown that heptane can be effectively used as a working fluid which is appropriate for the temperature range requirements. At the same time the device has good mass-and-size characteristics and total thermal resistance under a nominal heat load of about 1.7° C/W

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5.
Инвентарный номер: нет.
   
   M 43

    Maydanik, Yu. F.
    Review: Loop heat pipes with flat evaporators [Electronic resource] / Yu. F. Maydanik, M. A. Chernysheva, V. G. Pastukhov. - [Б. м. : б. и.]. - Систем. требования: http://www.scopus.com/record/display.url?eid=2-s2.0-84898450074&origin=resultslist&sort=plf-f&src=s&st1=Maydanik&st2=YU.+F. - 27.08.2014. - Bibliogr. : p. 306-307 (60 ref.). - Б. ц.
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
ELECTRONICS COOLING -- LOOP HEAT PIPE -- FLAT EVAPORATOR
Аннотация: The paper contains an analytical review of developments, results of tests and simulation of loop heat pipes (LHPs) with disk-shaped, rectangular and flat-oval evaporators. Two main directions have been noted in the development of flat evaporators, which may be arbitrarily separated into evaporators with opposite replenishment (EORs) and evaporators with longitudinal replenishment (ELRs). The bodies of such evaporators are made of stainless steel, copper, aluminum. For making wicks use is made of sintered powders and mesh of stainless steel, nickel, titanium, copper, polytetrafluoroethylene (PTFE) and ceramics. Monoporous and biporous capillary structures are considered. Water, ammonia, methanol, ethanol, and acetone have been tested as working fluids. The best results were shown by the combination "copper-copper-water" at temperatures above 70 °C, when on trials an evaporator thermal resistance of less than 0.01°C/W and a heat flux close to 1000 W/cm2 were achieved. For temperatures below 70°C the most efficient combination is "stainless steel-nickel-ammonia".

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6.
Инвентарный номер: нет.
   
   L 88

   
    Loop heat pipes and evaporators with advanced characteristics [Text] / Yu. F. Maydanik, S. V. Vershinin, V. G. Pastukhov, D. Gluck, C. Gerhard // Proceedings of the CPL-98 International Workshop on Capillary Pumped Two-Phase Loops (Los Angeles, USA, March 2-3, 1998). - P2. 4-1-2. 4-11
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
ТРУБА КОНТУРНАЯ -- КОНТУРНАЯ ТРУБА -- ТРУБА ТЕПЛОВАЯ -- ТЕПЛОВАЯ ТРУБА -- ИСПАРИТЕЛИ

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7.
Инвентарный номер: нет.
   

    Maydanik, Yu. F.
    Review: loop heat pipes with flat evaporators [Electronic resource] / Yu. F. Maydanik, M. A. Chemysheva, V. G. Pastukhov // Applied Thermal Engineering. - 2014. - Vol.67, № 1-2. - С. 294-307. - Bibliogr. : p. 306-307 (59 ref)

\\\\expert2\\NBO\\Applied Thermal Engineering\\2014, v. 67, Т 1-2. p. 294-307.pdf
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8.
Инвентарный номер: нет.
   
   M 43

    Maydanik, Yu. F.
    Investigation of thermal characteristics of high-capacity loop heat pipes after a long-term storage [Electronic resource] / Yu. F. Maydanik, M. A. Chernysheva, V. G. Pastukhov // Energy . - 2014. - Article in press
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
CAPACITY -- HEAT-TRANSFER SYSTEMS -- CAPILLARY STRUCTURE,
Аннотация: Repeat thermal tests of two high-capacity LHPs (loop heat pipes) have been conducted after their long-term storage under normal conditions. The first of them 1820 mm long with a capacity of 1200 W and water as a working fluid was made and first tested in 1985. The other device with a length of 2750 mm and a capacity of 800 W, which consisted of two ammonia LHPs joined in series, was made and tested for the first time in 1988. Both the devices were made of stainless steel and equipped with a titanium and nickel capillary structures. The tests, which were conducted in conditions similar to the initial ones, have shown that a long-term storage has not had any considerable impact on the LHP thermal characteristics. Such devices may be used in systems of utilization of low-potential heat and solar energy, and also for heating and cooling various objects

\\\\expert2\\nbo\\Energy\\2014, v. 74, p. 804-809.pdf
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9.
Инвентарный номер: нет.
   
   M 43

    Maydanik, Yu. F.
    Investigation of thermal characteristics of high-capacity loop heat pipes after a long-term storage [Electronic resource] / Yu. F. Maydanik, M. A. Chernysheva, V. G. Pastukhov // Energy . - 2014. - Article in press
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
CAPACITY -- HEAT-TRANSFER SYSTEMS -- CAPILLARY STRUCTURE,
Аннотация: Repeat thermal tests of two high-capacity LHPs (loop heat pipes) have been conducted after their long-term storage under normal conditions. The first of them 1820 mm long with a capacity of 1200 W and water as a working fluid was made and first tested in 1985. The other device with a length of 2750 mm and a capacity of 800 W, which consisted of two ammonia LHPs joined in series, was made and tested for the first time in 1988. Both the devices were made of stainless steel and equipped with a titanium and nickel capillary structures. The tests, which were conducted in conditions similar to the initial ones, have shown that a long-term storage has not had any considerable impact on the LHP thermal characteristics. Such devices may be used in systems of utilization of low-potential heat and solar energy, and also for heating and cooling various objects

\\\\expert2\\nbo\\Energy\\2014, v. 74, p. 804-809.pdf
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10.
Инвентарный номер: нет.
   

    Maydanik, Yu. F.
    Review: loop heat pipes with flat evaporators [Electronic resource] / Yu. F. Maydanik, M. A. Chemysheva, V. G. Pastukhov // Applied Thermal Engineering. - 2014. - Vol.67, № 1-2. - С. 294-307. - Bibliogr. : p. 306-307 (59 ref)

\\\\expert2\\NBO\\Applied Thermal Engineering\\2014, v. 67, Т 1-2. p. 294-307.pdf
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