Influence of the Corrosion Process on Thermotechnical Characteristics of Heat Pipes of Low-Temperature Range

Journal of Engineering Physics and Thermophysics - Results of investigation into the influence of a corrosion process on thermotechnical characteristics of heat pipes of low-temperature range are...     

Evaporation-condensation cooling systems for electronic equipment

The paper shows that heat pipes with metal-fibrous capillary structures and evaporation-condensation cooling system based on heat pipes are highly efficient means of providing optimal thermal conditions for different electronic instruments and devices. Such cooling system combining the functions of effective heating conduit (equivalent heat conductivity is much higher than the heat conductivity of the best heat-conducting materials) and effective radiator with the possibility of passive heat dissipation is characterized by a high heat transport ability, low thermal resistance, relatively small size and weight, reliable performance at different orientation in space under exposure to mass forces action. The paper presents examples of developed designs and investigations of heat pipes and evaporation-condensation systems with metal-fibrous capillary structures aimed at cooling the different heat generating items of electronic equipment. In this case, special types and designs of systems are discussed. These systems operate under different conditions of heat removal to absorbing medium and feature both a high heat transport ability and specific dielectric properties. In addition, the thermotechnical characteristics of proposed cooling systems are also presented.     

Influence of temperature-time heat treatment regimes on operating characteristics of oxide films as applied to copper capillary-porous structures

Temperature-time regimes of heat treatment for producing oxide films on copper capillary-porous structures (CPSs) are determined. The stability of the produced oxide films to multiple heating-cooling cycles under the conditions of the operation of evaporation-condensation systems (ECSs) is shown. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 70, No. 3, pp. 386–389, May–June, 1997.     

Structure parameters of metal-fiber heat pipe wicks

The results of an experimental investigation of local and average values of permeability and effective pore diameter for metal-fiber wicks, using a laser-Doppler velocity measurement, are presented and discussed.Notation K permeability coefficient, m² - V filtration rate, m/sec - viscosity, N·sec/m² - dp/dx pressure gradient - rms deviation - f_i probability density distribution,m^–1 - D pore diameter,m - E excess - A asymmetry The 50-Year Anniversary of the Great October Socialist Revolution Kiev Polytechnic Institute.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 35, No. 5, pp. 777–781, November, 1978.     

Toward calculation of heat-engineering characteristics of two-phase thermosiphons filled with ethylene glycol II. Heat-engineering characteristics

We present experimental results obtained for the thermal and technical characteristics of two-phase thermosiphons with ethylene glycol as a heat carrier. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 71, No. 2, pp. 199–202, March–April, 1998.     

Effect of Hot Rolling Parameters on Excess Phase Precipitation in Two-Phase Ferritic-Martensitic Steels

Metallurgist - Results are given for studying the effect of hot rolling parameters on morphological features of the structure and precipitation in hot rolled products destined for further cold...