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1.
Инвентарный номер: нет.
   
   S 71

   
    Some results of loop heat pipes development, tests and application in engineering [Text] / Yu. F. Maydanik, Y. G. Fershtater, S. V. Vershinin, V. G. Pastukhov, K. Goncharov // Proceedings of 5th International Heat Pipe Symposium (Melbourne, Australia, Nov. 17-20, 1996). - 1996. - P406-412
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
ТРУБА КОНТУРНАЯ -- КОНТУРНАЯ ТРУБА -- ТРУБА ТЕПЛОВАЯ -- ТЕПЛОВАЯ ТРУБА

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2.
Инвентарный номер: нет.
   
   S 71

   
    Some results of loop heat pipes development, tests and application in engineering [Text] / Yu. F. Maydanik, Y. G. Fershtater, S. V. Vershinin, V. G. Pastukhov, K. Goncharov // Proceedings of 5th International Heat Pipe Symposium (Melbourne, Australia, Nov. 17-20, 1996). - 1996. - P406-412
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
ТРУБА КОНТУРНАЯ -- КОНТУРНАЯ ТРУБА -- ТРУБА ТЕПЛОВАЯ -- ТЕПЛОВАЯ ТРУБА

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3.
Инвентарный номер: нет.
   
   P 31

    Pastukhov, V. G.
    Low-noise cooling system for PC on the base of loop heat pipes / V. G. Pastukhov, Yu. F. Maydanik // Applied Thermal Engineering. - 2007. - Vol.27, №5-6. - С. 894-901
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
COMPUTER COOLING -- LOOP HEAT PIPE -- PASSIVE CPU COOLING SYSTEM
Аннотация: The problem of current importance connected with a wide use of personal computers (PC) and a rapid growth of their performance is a decrease in the noise level created at the operation of cooling system fans. One of the possible ways of solving this problem may be the creation of passive or semi-passive systems on the base of loop heat pipes (LHPs) in which the heat sink is an external radiator cooled by natural and/or forced air convection. The paper presents the results of development and tests of several variants of such systems, which are capable of sustaining an operating temperature of 72–78 °C on the heat source thermal interface which dissipates 100 W at an ambient temperature of 22 °C. It is also shown that the use of additional means of active cooling in combination with LHPs allows to increase the value of dissipated heat up to 180 W and to decrease the system thermal resistance down to 0.29 °C/W

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4.
Инвентарный номер: нет.
   
   P 31

    Pastukhov, V. G.
    Low-noise cooling system for PC on the base of loop heat pipes / V. G. Pastukhov, Yu. F. Maydanik // Applied Thermal Engineering. - 2007. - Vol.27, №5-6. - С. 894-901
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
COMPUTER COOLING -- LOOP HEAT PIPE -- PASSIVE CPU COOLING SYSTEM
Аннотация: The problem of current importance connected with a wide use of personal computers (PC) and a rapid growth of their performance is a decrease in the noise level created at the operation of cooling system fans. One of the possible ways of solving this problem may be the creation of passive or semi-passive systems on the base of loop heat pipes (LHPs) in which the heat sink is an external radiator cooled by natural and/or forced air convection. The paper presents the results of development and tests of several variants of such systems, which are capable of sustaining an operating temperature of 72–78 °C on the heat source thermal interface which dissipates 100 W at an ambient temperature of 22 °C. It is also shown that the use of additional means of active cooling in combination with LHPs allows to increase the value of dissipated heat up to 180 W and to decrease the system thermal resistance down to 0.29 °C/W

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5.
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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6.
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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7.
Инвентарный номер: нет.
   
   P 31

    Pastukhov, V. G.
    Combined LHP and PHP based heat-transfer system / V. G. Pastukhov, Yu. F. Maydanik // International Journal of Thermal Science. - 2013. - Vol.74. - С. 81-85
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
HEAT-TRANSFER SYSTEM -- LOOP HEAT PIPE -- PULSATING HEAT PIPE
Аннотация: The paper presents the results of development and experimental investigation of a heat-transfer system consisting of a pulsating and a loop heat pipe. The pulsating heat pipe (PHP) was made of a copper capillary tube 2 mm in diameter and located on an aluminum plate measuring 260 × 200 × 1 mm, had a thermal contact with the evaporator interface of a loop heat pipe (LHP) 0.6 m long. The working fluid of the PHP was R141b. The LHP was filled with ammonia. A heat-load source measuring 200 × 200 mm was located on the PHP, and its heat was transferred to the LHP evaporator. Tests were conducted at different orientations in the gravity field at heat loads from 10 to 170 W and heat-sink temperatures from −20 to +20 °C. A minimum value of thermal resistance equal to 0.28 °C/W was achieved in the heat load range from 50 to 90 W.

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8.
Инвентарный номер: нет.
   
   P 31

    Pastukhov, V. G.
    Combined LHP and PHP based heat-transfer system / V. G. Pastukhov, Yu. F. Maydanik // International Journal of Thermal Science. - 2013. - Vol.74. - С. 81-85
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
HEAT-TRANSFER SYSTEM -- LOOP HEAT PIPE -- PULSATING HEAT PIPE
Аннотация: The paper presents the results of development and experimental investigation of a heat-transfer system consisting of a pulsating and a loop heat pipe. The pulsating heat pipe (PHP) was made of a copper capillary tube 2 mm in diameter and located on an aluminum plate measuring 260 × 200 × 1 mm, had a thermal contact with the evaporator interface of a loop heat pipe (LHP) 0.6 m long. The working fluid of the PHP was R141b. The LHP was filled with ammonia. A heat-load source measuring 200 × 200 mm was located on the PHP, and its heat was transferred to the LHP evaporator. Tests were conducted at different orientations in the gravity field at heat loads from 10 to 170 W and heat-sink temperatures from −20 to +20 °C. A minimum value of thermal resistance equal to 0.28 °C/W was achieved in the heat load range from 50 to 90 W.

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9.
Инвентарный номер: нет.
   
   P 31

    Pastukhov, V. G.
    Adaptation of loop heat pipes to zero-g conditions / V. G. Pastukhov, Yu. F. Maydanik, Y. G. Fershtater // 6th European Symposium on Space Environmental Control Systems: Noordwijk, Netherlands, 20-22 may 1997 . - 1997. - Vol.400. - С. 385-391
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
LOOP HEAT PIPES -- HEAT-TRANSPORT -- THERMOCAPILLARY PHENOMENA
Аннотация: Loop heat pipes (LHPs) posses a great variety of valuable properties, which make them quite promising for application both on the Earth and in space. Among these are the LHP high heat-transport capacity at an any orientation in the field of mass forces, good mass-and-size parameters and the possibility of an arbitrary configuration of transport lines. At the same time such a drawback of LHPs of the conventional type as the instability of start up and operation in the region of low heat loads reduces their performance. The problem is connected, in a general case, with the unfavourable distribution of the vapor and the liquid phases of the working fluid in the evaporator. There is reason to believe that the LHP operation can also be significantly affected by zero-g conditions, in which the distribution of a working fluid is pre-determined only by the action of surface forces and the thermocapillary phenomena. The paper performs a general analysis of the necessary conditions imposed on the construction of LHP and some designs that contribute to the retention of serviceability in zero-g conditions at low heat loads. It gives the results of laboratory investigations of an adapted ammonia LHP with a heat-transfer capacity up to 2 kWxm

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10.
Инвентарный номер: нет.
   
   P 31

    Pastukhov, V. G.
    Adaptation of loop heat pipes to zero-g conditions / V. G. Pastukhov, Yu. F. Maydanik, Y. G. Fershtater // 6th European Symposium on Space Environmental Control Systems: Noordwijk, Netherlands, 20-22 may 1997 . - 1997. - Vol.400. - С. 385-391
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
LOOP HEAT PIPES -- HEAT-TRANSPORT -- THERMOCAPILLARY PHENOMENA
Аннотация: Loop heat pipes (LHPs) posses a great variety of valuable properties, which make them quite promising for application both on the Earth and in space. Among these are the LHP high heat-transport capacity at an any orientation in the field of mass forces, good mass-and-size parameters and the possibility of an arbitrary configuration of transport lines. At the same time such a drawback of LHPs of the conventional type as the instability of start up and operation in the region of low heat loads reduces their performance. The problem is connected, in a general case, with the unfavourable distribution of the vapor and the liquid phases of the working fluid in the evaporator. There is reason to believe that the LHP operation can also be significantly affected by zero-g conditions, in which the distribution of a working fluid is pre-determined only by the action of surface forces and the thermocapillary phenomena. The paper performs a general analysis of the necessary conditions imposed on the construction of LHP and some designs that contribute to the retention of serviceability in zero-g conditions at low heat loads. It gives the results of laboratory investigations of an adapted ammonia LHP with a heat-transfer capacity up to 2 kWxm

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