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ELECTRONIC CIRCUIT BOARDS NON-UNIFORM COOLING SYSTEM MODEL

https://doi.org/10.21822/2073-6185-2016-41-2-61-67

Abstract

Abstract. The paper considers a mathematical model of non-uniform cooling of electronic circuit boards. The block diagram of the system implementing this approach, the method of calculation of the electronic board temperature field, as well as the principle of its thermal performance optimizing are presented. In the considered scheme the main heat elimination from electronic board is produced by the radiator system, and additional cooling of the most temperature-sensitive components is produced by thermoelectric batteries. Are given the two-dimensional temperature fields of the electronic board during its uniform and non-uniform cooling, is carried out their comparison. As follows from the calculations results, when using a uniform overall cooling of electronic unit there is a waste of energy for the cooling 0f electronic board parts which temperature is within acceptable temperature range without the cooling system. This approach leads to the increase in the cooling capacity of used thermoelectric batteries in comparison with the desired values. This largely reduces the efficiency of heat elimination system. The use for electronic boards cooling of non-uniform local heat elimination removes this disadvantage. The obtained dependences show that in this case, the energy required to create a given temperature is smaller than when using a common uniform cooling. In this approach the temperature field of the electronic board is more uniform and the cooling is more efficient. 

About the Authors

D. V. Yevdulov
FSBEE HE «Dagestan state technical University»
Russian Federation

candidate of technical Sciences, senior lecturer of the Department of theoretical and General electrical engineering, school of computing , computing and energy

70 I. Shamil Ave, 367015, Makhachkala



O. V. Yevdulov
FSBEE HE «Dagestan state technical University»
Russian Federation

candidate of technical Sciences, docent of Department of theoretical and General electrical engineering, school of computing, computing and energy

70 I. Shamil Ave, 367015, Makhachkala



References

1. Device for cooling electronic boards: Pat. 2366130 ROS. Federation: МПК7 H05K7/20

2. Ismailov T. A., Avdulov O. V., Avdulov D. V., Aslanov M. U.: The applicant and patent holder FGBOU VO "Dagestan state technical University". No 2008129551; publ. 27.08.2009, bull. No. 24. Ismailov T. A. semiconductor Thermoelectric devices properties and intensifiers of heat transfer. – SPb.: Polytechnic, 2005. - 534 p.

3. Dul'nev G. N. Theory of heat and mass transfer. – SPb.: Spbnet-MO, 2012. – 195p.

4. http://www.krioterm.ru.


Review

For citations:


Yevdulov D.V., Yevdulov O.V. ELECTRONIC CIRCUIT BOARDS NON-UNIFORM COOLING SYSTEM MODEL. Herald of Dagestan State Technical University. Technical Sciences. 2016;41(2):61-67. (In Russ.) https://doi.org/10.21822/2073-6185-2016-41-2-61-67

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ISSN 2073-6185 (Print)
ISSN 2542-095X (Online)