Capillary structures mechanical properties in respect to functioning conditions in heat pipes
DOI:
https://doi.org/10.15587/2312-8372.2013.12107Keywords:
capillary structure, limiting accuracy, ultimate strength, heat pipeAbstract
Mechanical properties of capillary structures and their reliable attachment to the inner surface of heat pipes play an important role in a wide temperature range. Reliability of operation of heat pipes depends on the strength of the capillary structure. The article presents the results of an experimental study of the effect of various parameters on the mechanical properties of metal-fiber capillary structure made of stainless steel. The studies of the break of capillary structure were carried out on a special test bench that helped to determine with high accuracy the elongation of the samples under mechanical loads. We have studied two types of capillary structures with diameters of fibers 8 and 30mkm and porosity in the range of 88% to 98%. The results showed that the strength of the structure depends heavily on the fiber diameter, porosity and temperature. The decrease of the fibers diameters, increase of porosity and temperature aggravated the mechanical properties of capillary structures. These results can be used by designers of heat pipes, who operate in a wide temperature range.References
- Кравец, В.Ю. Исследование взаимодействия паровых пузырей с капиллярной структурой [Текст]/ В.Ю. Кравец// Технологические системы, – 2002, – № 2(13). – с.152 – 155.
- Kravets, V.Yu. Experimental Studies of Heat-Transfer Characteristics of Miniaturized Heat Pipes [Текст]/ V.Yu. Kravets, Yu.E. Nikolaenko, Ya.V. Nekrashevich // Heat Transfer Research. – 2007, – Vol. 38, – № 6. – pp. 553-563.
- Косторнов, А.Г. Проницаемые металлические волокновые материалы [Текст] / А.Г. Косторнов – К.: Техніка, 1983. – 128 с.
- Косторнов, А.Г. Материаловедение дисперсных и пористых металлов и сплавов. Том 2 [Текст]/ А.Г. Косторнов – К.: Наукова думка, 2003. – 550 с.
- Семена, М.Г. Тепловые трубы с металловолокнистыми капиллярными структурами [Текст]/ М.Г. Семена, А.Н. Гершуни, В.К. Зарипов – К.: Вища шк., 1984. – 215 с.
- Белов, С.В. Пористые металлы в машиностроении [Текст] / С.В. Белов – М.: Машиностроение, 1981. – 247 с.
- Косторнов, А.Г. Контактные явления в пористых волокновых материалах [Текст]/ А.Г. Косторнов, Л.Г. Галстян// Порошковая металлургия, – 1983, –№5. – с. 58 – 61.
- Пористые проницаемые материалы: Справ. Изд. [Текст ]/ Под ред. Белова С.В. – М.: Металлургия , 1987. – 335 с.
- Сопротивление материалов [Текст]/ Г.С. Писаренко, В.А. Агарев, А.Л. Квитка и др. – К.: Техніка, 1967. – 791 с.
- Baturkin, V. Study of Structural and Mechanical Properties of Metal Felt Wicks Intended for High Temperature Heat Pipes – Solar Receivers [Текст]/ V. Baturkin, V. Kravetz, A. Nischik, V. Zaripov, J. Moreno// 12th International Heat Pipe Conference, May 19-24, 2002, Moscow-Kostroma-Moscow, pp. 547 – 552.
- Kravets, V.Yu. (2002). Research interaction of steam bubble with capillary structure. Technologic system, 2(13), 152 –155.
- Kravets, V.Yu., Nikolaenko, Yu.E., Nekrashevich, Ya.V. (2007) Experi-mental Studies of Heat-Transfer Characteristics of Miniaturized Heat Pipes. Heat Transfer Research, 38(6), 553-563.
- Belov, S. W. (1981). Porous metals in mechanical engineering. Moscow, USSR: Mechanical engineering.
- Kostornow, A.G. (1983). Permeability metal fiber material. Kiev: Tech-niques.
- Kostornow, A.G. (2003).Material science of dispersible and porous metals and alloys. V. 2. Кiev: Naukova Dumka.
- Porous permeability material: Reference book. Edited by Belov S. W. (1987). Moscow, USSR: Metallurgy.
- Kostornow, A.G., Galstyan, L.G. (1983) Contact phenomena’s in porous fibrous materials. Poroshcovaya metallurgiya. 5, 58 – 61.
- Pisarenko, G.S., Agarev, V.A., Kvitka, A.L. and other. (1967). Metals resistence. Kiev: Technics.
- Semena, M.G., Gershuni, A.N., Zaripov, V.K. (1984). Heat pipes with metal-fibrous capillary structures. Kiev: Vyscha shcola.
- Baturkin, V., Kravetz, V., Nischik, A., Zaripov, V., Moreno, J. (2002). Study of Structural and Mechanical Properties of Metal Felt Wicks Intended for High Temperature Heat Pipes – Solar Receivers. 12th International Heat Pipe Conference, 547 – 552.
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