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首页> 外文会议>AMD-vol.256; American Society of Mechanical Engineers(ASME) International Mechanical Engineering Congress and Exposition; 20051105-11; Orlando,FL(US) >STRESS ANALYSIS OF A HIGH TEMPERATURE HEAT EXCHANGER USED IN AN ADVANCED NUCLEAR REACTOR
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STRESS ANALYSIS OF A HIGH TEMPERATURE HEAT EXCHANGER USED IN AN ADVANCED NUCLEAR REACTOR

机译：先进核反应器中高温换热器的应力分析

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摘要

This paper presents the stress analysis of the offset strip-fin type compact high temperature heat exchanger for use in the cooling cycle of an advanced nuclear reactor for hydrogen production by the sulfur iodine thermo-chemical cycle. Three different geometry types of heat exchangers were considered: geometry with rectangular fins; geometry with rounded fins and geometry with rounded fins which include manufacturing geometrical effects (fins with roundings on their bases). The material of the heat exchanger is liquid silicon impregnated carbon composite. The two working fluids for the heat exchanger are helium gas and molten salt with maximum temperature about 1000℃. The finite element code ANSYS 9.0 was used for the simulations. The boundary conditions for temperature and pressure were obtained as results of CFD and heat transfer calculations of the heat exchanger using the finite volume code FLUENT 6.1.18 The obtained results will be used for further optimization of the high temperature heat exchanger geometry.
机译：本文介绍了在先进的核反应堆的冷却循环中，通过硫碘热化学循环生产氢的偏置带翅片式紧凑型高温热交换器的应力分析。考虑了三种不同的几何类型的热交换器：带有矩形翅片的几何形状；以及带有散热片的几何形状。带有圆形鳍的几何形状和带有圆形鳍的几何形状，其中包括制造几何效果（鳍的底部带有圆角）。热交换器的材料是液态硅浸渍碳复合材料。热交换器的两种工作流体是氦气和最高温度约1000℃的熔融盐。仿真使用了有限元代码ANSYS 9.0。使用有限体积代码FLUENT 6.1.18，通过CFD和热交换器的传热计算，获得了温度和压力的边界条件。所得结果将用于进一步优化高温热交换器的几何形状。

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