CAJ | 학술논문

针对高温与核辐射环境下，电子系统经过抗核辐射加固后处于有限密闭空间的大功率电路板散热问题，提出有限密闭空间内强制对流与热流循环通道交叉散热的方法，改变密闭空间内的热量分布，增强电路系统对环境的辐射能力和加快密闭系统内部与环境的热交换过程，有效解决密闭空间内大功率电路板的散热问题。该改进散热方法采用Ansys有限元模拟仿真和实验验证，结果表明，改进的散热方法能够很好解决密闭空间内大功率电路板的散热问题，为实际的工程应用奠定基础。
침대고온여핵복사배경하，전자계통경과항핵복사가고후처우유한밀폐공간적대공솔전로판산열문제，제출유한밀폐공간내강제대류여열류순배통도교차산열적방법，개변밀폐공간내적열량분포，증강전로계통대배경적복사능력화가쾌밀폐계통내부여배경적열교환과정，유효해결밀폐공간내대공솔전로판적산열문제。해개진산열방법채용Ansys유한원모의방진화실험험증，결과표명，개진적산열방법능구흔호해결밀폐공간내대공솔전로판적산열문제，위실제적공정응용전정기출。
For High power circuit board cooling problems in a confined space for electronic systems with anti-nuclear radiation hardened in high temperature and nuclear radiation environment, this paper proposes forced convection cooling in a limited confined space and heat cycling cross-channel approach, changing the distribu-tion of heat in a confined space, enhancing circuitry radiation on the environment and accelerating the process of heat exchange with the environment inside a closed system to solve the heat problem of the confined space power board effectively.The improved heat dissipation method is analyzed using Ansys finite element simulation and verified by experiment, the results show that the improved heat dissipation method can solve the heat prob-lem of high power circuit board in a confined space, and contribute to the foundation for practical engineering applications.