CASPIAN JOURNAL
MANAGEMENT AND HIGH TECHNOLOGIES
Thermal model of educational cooling system
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Read | Goryachev Nikolay V., Petryanin Dmitriy L. Thermal model of educational cooling system // Caspian journal : management and high technologies. — 2014. — №2. — pp. 197-209. |
Goryachev Nikolay V. - Head of the Laboratory, Penza State University, 40 Krasnaya St., Penza, 440026, Russian Federation, ra4foc@yandex.ru
Petryanin Dmitriy L. - post-graduate student, Penza State University, 40 Krasnaya St., Penza, 440026, Russian Federation, petryanin@r4f.su
We propose a mathematical model for the thermal cooling system training (Ofsted) electronic means and individual electrical radio within them. Regarded USO - a unified system to the surface, which established contact temperature sensors. The thermal model was built by Ofsted known analogy with Ohm's law - the use of such parameters: temperature, heat capacity, thermal resistance. During field tests was a discrepancy between the results of calculations for the model and the actual results for a real cooling system. To resolve discrepancies were invited to use a correction factor that takes into account the total losses caused by convective and radiant heat exchange with the environment USO. It is possible to increase the accuracy of the model used for cooling at 13.5 %. Calculations for this model were made with a specially designed computer program. Novelty of this work is to develop a mathematical model of heat USO differing introduction empirically derived correction factor that takes into account the total losses caused by convective and radiant heat exchange surface of the object with the environment, thus improving the accuracy of the calculation of the cooling system for cooling element mode which is close to the maximum admissible.
Key words: электрорадиоизделие, электронное средство, охлаждение, теплоотвод, проектирование, тепловая модель, система охлаждения, расчет, тепломассообмен, радиатор, компьютеризация расчетов, electroradio product, electronic means, cooling, heat sink, design, therma