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首页> 外文期刊>Heat Transfer Engineering >Introduction of a New Crossover Radius for the Guaranteed Heat Transfer Reduction in Radial Thermal Insulation Systems
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Introduction of a New Crossover Radius for the Guaranteed Heat Transfer Reduction in Radial Thermal Insulation Systems

机译：引入新的交叉半径以确保减少径向绝热系统的传热

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摘要

The use of the critical radius for radial heat conduction in thermal insulation systems has been widely reported in the literature. When it is desirable to increase heat dissipation, this critical radius can be used in a definitive manner to maximize the heat dissipation. However, if it is desirable to decrease heat gain or heat loss, the critical radius only serves as a necessary condition and is not sufficient. To address the design of such thermal systems, a new crossover radius is introduced. A crossover radius is a radius greater than the critical radius and is defined such that the heat transfer with the corresponding amount of insulating material is equal to that of the bare thermal system. Both cylindrical and spherical systems are considered.
机译：在绝热系统中将临界半径用于径向热传导已在文献中广泛报道。当需要增加散热量时，可以以确定的方式使用该临界半径以最大化散热量。然而，如果期望减少热增益或热损失，则临界半径仅用作必要条件，并不足够。为了解决此类热系统的设计问题，引入了新的交叉半径。交叉半径是大于临界半径的半径，并且被定义为使得具有相应量的绝缘材料的热传递等于裸热系统的热传递。圆柱和球形系统都可以考虑。

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