The Jules Horowitz Reactor, a new material testing reactor, is currently under construction on the CEA Cadarache site (in the South of France). A nuclear heating rate unequaled in Europe will be provided: 20 W.g−1 for a nominal thermal power of 100 MW. There is no differential calorimeter in the state of the art that measures such a nuclear heating rate. This article presents a new differential calorimeter configuration dedicated to this very high nuclear heating rate. On the one hand, the chosen configuration is validated and calibrated experimentally under laboratory conditions by using a new heating system, allowing the application of a wide range of electrical power never tested in the literature and ten times higher compared to that commonly used. Then the calorimetric cell response is estimated under real conditions with an analytical model. Finally, 3-D thermal numerical simulations of the whole calorimeter are performed under real conditions. Some parameters, such as the size of the cell, the intercell space, and the nature of the sample, are tuned to propose a very compact differential calorimeter.

中文翻译：

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专用于高达 20W.g-1 的核加热率的新型差热计配置的认证

Jules Horowitz 反应堆是一种新材料测试反应堆，目前正在 CEA Cadarache 站点（位于法国南部）建造。将提供欧洲无与伦比的核加热速率：对于 100 MW 的标称热功率，20 Wg-1。在现有技术中没有测量这种核加热速率的差热计。本文介绍了一种专用于这种非常高的核加热速率的新型差热计配置。一方面，所选配置通过使用新的加热系统在实验室条件下通过实验验证和校准，允许应用文献中从未测试过的广泛电力，与常用电力相比，电力高十倍。然后使用分析模型在真实条件下估计量热细胞响应。最后，在真实条件下对整个量热仪进行 3-D 热数值模拟。调整一些参数，例如细胞的大小、细胞间空间和样品的性质，以提出一个非常紧凑的差示量热仪。