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Труды сотрудников Института теплофизики УрО РАН
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 Найдено в других БД:Каталог книг и продолжающихся изданий (9)Труды Института высокотемпературной электрохимии УрО РАН (15)Труды Института истории и археологии УрО РАН (1)Труды сотрудников Института органического синтеза УрО РАН (15)Труды сотрудников Института химии твердого тела УрО РАН (9)Расплавы (11)Публикации Чарушина В.Н. (3)Каталог библиотеки ИЭРиЖ УрО РАН (1)
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 1-10    11-20   21-30   31-36 
1.
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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2.
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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3.
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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4.
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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5.
Инвентарный номер: нет.
   
   C 51

    Chernysheva, M. A.
    Effect of external factors on the operating characteristics of a copper–water loop heat pipe [Electronic resource] / M. A. Chernysheva, S. Yushakova, Yu. F. Maydanik // International Journal of Heat and Mass Transfer. - 2015. - С. 297-304. - Bibliogr. : p. 304 (13 ref.)
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
LOOP HEAT PIPES -- OPERATING TEMPERATURE -- COOLING SYSTEM OF COMPUTER SERVERS
Аннотация: The paper presents operating characteristics of a copper–water loop heat pipe (LHP) developed for the use in cooling systems of servers for heat transfer from heat-tensioned elements of electronics to peripheral sections or an outer circulation cooling loop beyond the server. The LHP effective length was 400 mm. The device was provided with a flat-oval evaporator. Its thickness, width and length were equal to 7 mm, 42 mm and 80 mm, respectively. The evaporator was equipped with a thermal interface whose heating zone measured 30 mm × 30 mm. The aim of the research work was to determine the effect of external factors such as the device orientation, the condenser cooling temperature and the condition of heat exchange with the surroundings, on the LHP operating performances. The tests were conducted at the unfavorable LHP slopes from 0° to +60° and heat-sink temperatures from 20 °C to 80 °C, and also in different conditions of heat exchange with the outside ambient. The investigation results are presented in the range of heat loads from 20 to 600 W. It has been shown that the slope dependence of the LHP heat-transfer capacity decreases with increasing heat-sink temperature and practically disappears at a value of the latter of 80 °C. In this case the LHP thermal resistance decreases too and reaches a minimum value of 0.02 °C/W in the range of heat loads from 400 to 600 W.

\\\\expert2\\nbo\\International Journal of Heat and Mass Transfer\\2015, v. 81, p.297-304.pdf
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6.
Инвентарный номер: нет.
   
   C 51

    Chernysheva, M. A.
    Effect of external factors on the operating characteristics of a copper–water loop heat pipe [Electronic resource] / M. A. Chernysheva, S. Yushakova, Yu. F. Maydanik // International Journal of Heat and Mass Transfer. - 2015. - С. 297-304. - Bibliogr. : p. 304 (13 ref.)
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
LOOP HEAT PIPES -- OPERATING TEMPERATURE -- COOLING SYSTEM OF COMPUTER SERVERS
Аннотация: The paper presents operating characteristics of a copper–water loop heat pipe (LHP) developed for the use in cooling systems of servers for heat transfer from heat-tensioned elements of electronics to peripheral sections or an outer circulation cooling loop beyond the server. The LHP effective length was 400 mm. The device was provided with a flat-oval evaporator. Its thickness, width and length were equal to 7 mm, 42 mm and 80 mm, respectively. The evaporator was equipped with a thermal interface whose heating zone measured 30 mm × 30 mm. The aim of the research work was to determine the effect of external factors such as the device orientation, the condenser cooling temperature and the condition of heat exchange with the surroundings, on the LHP operating performances. The tests were conducted at the unfavorable LHP slopes from 0° to +60° and heat-sink temperatures from 20 °C to 80 °C, and also in different conditions of heat exchange with the outside ambient. The investigation results are presented in the range of heat loads from 20 to 600 W. It has been shown that the slope dependence of the LHP heat-transfer capacity decreases with increasing heat-sink temperature and practically disappears at a value of the latter of 80 °C. In this case the LHP thermal resistance decreases too and reaches a minimum value of 0.02 °C/W in the range of heat loads from 400 to 600 W.

\\\\expert2\\nbo\\International Journal of Heat and Mass Transfer\\2015, v. 81, p.297-304.pdf
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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.
   
   R 96

    Rutin, S. B.
    Apparatus for studying heat transfer in nanofluids under high-power heating [Electronic resource] / S. B. Rutin, P. V. Skripov // Journal of Engineering Thermophysics. - 2012. - Vol.21, №2. - P144-153. - Bibliogr. : p. 153 (19 ref.)
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
HEAT TRAHSFER -- HIGH-POWER HEATING -- ELECTRONIC CONTROL
Аннотация: A technique of electronic control of the probe heating power is developed using the method of controlled pulse heating of a wire probe, that is a resistance thermometer, was developed. An apparatus implementing this technique was fabricated. The characteristic parameters of the apparatus are as follows: the heating pulse length, 1 to 10 ms; the heat flux density through the surface of a 20 µm probe, 1 to 10 MW/m2; repeatability of selected power value in a series of pulses is on a level of 0.05%. As an example, the constant heating power mode is applied for comparing the thermal resistance of nanofluids in the region of stable states of liquid and superheated (with respect to the liquid-vapor equilibrium temperature of the base liquid) ones. The parameter was the content of Al2O3 nanoparticles in the base liquid (isopropanol).

\\\\expert2\\NBO\\Journal of Engineering Thermophysics\\2012, V.31, N 2. P. 144-153.pdf
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10.
Инвентарный номер: нет.
   
   R 96

    Rutin, S. B.
    Apparatus for studying heat transfer in nanofluids under high-power heating [Electronic resource] / S. B. Rutin, P. V. Skripov // Journal of Engineering Thermophysics. - 2012. - Vol.21, №2. - P144-153. - Bibliogr. : p. 153 (19 ref.)
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
HEAT TRAHSFER -- HIGH-POWER HEATING -- ELECTRONIC CONTROL
Аннотация: A technique of electronic control of the probe heating power is developed using the method of controlled pulse heating of a wire probe, that is a resistance thermometer, was developed. An apparatus implementing this technique was fabricated. The characteristic parameters of the apparatus are as follows: the heating pulse length, 1 to 10 ms; the heat flux density through the surface of a 20 µm probe, 1 to 10 MW/m2; repeatability of selected power value in a series of pulses is on a level of 0.05%. As an example, the constant heating power mode is applied for comparing the thermal resistance of nanofluids in the region of stable states of liquid and superheated (with respect to the liquid-vapor equilibrium temperature of the base liquid) ones. The parameter was the content of Al2O3 nanoparticles in the base liquid (isopropanol).

\\\\expert2\\NBO\\Journal of Engineering Thermophysics\\2012, V.31, N 2. P. 144-153.pdf
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