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Numerical simulation and experiment for thermal behaviorof stratospheric electronic equipment(PDF)

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2019年01期
Page:
86-
Research Field:
Publishing date:

Info

Title:
Numerical simulation and experiment for thermal behaviorof stratospheric electronic equipment
Author(s):
Dong YajieLi QiangZhang Xue
School of Energy and Power Engineering,Nanjing University of Scienceand Technology,Nanjing 210094,China
Keywords:
stratosphere electronic equipment convection hear dissipation solar radiation wind velocity forced convection temperature numerical simulation experiment
PACS:
TK12
DOI:
10.14177/j.cnki.32-1397n.2019.43.01.012
Abstract:
A theoretical model is established to investigate the thermal characteristics of stratospheric electronic equipment,considering the stratosphere environment such as temperature,pressure,wind velocity,earth and solar radiation,as well as the structure,materials and power of the electronic equipment. The influences of solar radiation,wind velocity,power and other parameters on the temperature of electronic equipment are analyzed. An experiment is conducted and discussed to prove the reliability of the mathematical model. The results show that:forced convection and radiation can affect the temperature of the stratospheric electronic equipment,and the convection heat dissipation is the main factor. The convection heat dissipation accounts for 87.9%,when the wind velocity is 15 m/s and the convection heat dissipation accounts for 58.5% when the wind velocity is 3 m/s. The two factors should be taken into consideration in the process of thermal design.

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Last Update: 2019-02-28