Supercritical Water-Cooled Small Modular Reactor R&D
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摘要: 小型模块化超临界水冷堆(SCW-SMR)是超临界水冷堆(SCWR)与小型模块化反应堆(SMR)的有机融合,可兼具二者的优势,既具有独立的市场需求,也为大型百万千瓦级超临界水冷堆的工程实践提供了基础。本文介绍了SCW-SMR的研发背景、国际主要研发动态、技术特点和优势,提出了研发过程的一些思考,包括总体设计原则、主要设计要求、具体设计考虑和研发阶段建议,供后续研发参考。
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关键词:
- 小型模块化反应堆(SMR) /
- 超临界水冷堆(SCWR) /
- 研发阶段 /
- 技术考虑
Abstract: Supercritical Water-cooled Small Modular Reactors (SCW-SMR) is a fusion of Supercritical Water-cooled Reactor (SCWR) and Small Modular Reactor (SMR). SCW-SMR could have both the advantages of SCWR and SMR, which have independent market demands and could provide basis for the engineering practice of the million-kilowatt SCWR. This article introduces SCW-SMR's R&D background, main international R&D developments, technical characteristics and advantages, and puts forward some thoughts on the R&D process, including overall design principles, main design requirements, specific design considerations, and R&D stage recommendations for subsequent R&D reference. -
表 1 SCW-SMR主要参考指标
Table 1. Main Reference Indicators for SCW-SMR
参数名 参数值 反应堆额定热功率/MW 250~500 额定电功率/MW 100~200 系统热效率/% >40 燃料组件类型 方形热谱 平衡燃料循环235U富集度/% <10 换料周期/月 ~24 堆芯运行压力/MPa 25 冷却剂堆芯入口温度/℃ ~280 冷却剂堆芯出口温度/℃ ≤470 燃料表面最高温度/℃ ≤620 电厂设计寿命/a 60 堆芯损坏概率(CDF)/(堆·年)−1 <10−7 放射性释放概率(LRF)/(堆·年)−1 <10−8 -
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