In support of extensive experimental irradiation program on molten salt technology at NRG in the Netherlands, system thermal hydraulic modeling capabilities are being developed in the SPECTRA code. This paper describes the (fueled) molten salt capabilities developed and presently available in the code. These include obviously flexible input of properties and (heat) transport correlations, delayed neutron precursor drift, fission product behavior, noble gas behavior, noble metal behavior, noble metal extraction, and chromium leaching and deposition. The paper will introduce the models developed and where possible their application to the Molten Salt Reactor Experiment (MSRE) data and simulation of the Mk1-PB-FHR.

为支持荷兰 NRG 熔盐技术的广泛实验辐照计划，正在开发 SPECTRA 代码中的系统热水力建模功能。本文描述了代码中开发和目前可用的（燃料）熔盐功能。这些包括性质和（热）传输相关性的明显灵活输入、延迟中子前体漂移、裂变产物行为、惰性气体行为、贵金属行为、贵金属提取以及铬浸出和沉积。本文将介绍开发的模型，并在可能的情况下将它们应用于 Mk1-PB-FHR 的熔盐反应器实验 (MSRE) 数据和模拟。