共查询到20条相似文献,搜索用时 234 毫秒
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池式快堆系统瞬态分析软件开发 总被引:3,自引:3,他引:0
为实现快堆系统分析软件国产化,在已开发的适用于稳态计算的池式快堆系统分析软件SAC-CFR的基础上,进一步开发了系统各部件的瞬态模型、控制系统和保护系统模型、瞬态工况热工水力学的求解逻辑,完成瞬态计算功能的开发。通过对日本文殊快堆45%功率汽机跳闸工况进行建模分析,验证了SAC-CFR用于系统瞬态分析的有效性,为进一步开发非能动余热排出系统分析模型打下了基础。 相似文献
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FSP(fission surface power)是美国经过充分研究论证的一种空间堆。为研究FSP系统的瞬态特性,对FSP系统各部件进行建模,并编写相关程序。该程序对系统稳态工况进行仿真,计算结果和稳态设计值符合良好。该程序对反应性引入以及主泵停止后再启动工况进行了仿真,计算结果趋势合理,证明了模型、建模思想以及建模方法的正确性。结果表明反应性引入时功率以及温度参数的振荡和回路之间温度变化快慢不同有关,且主泵停止后再启动的时间间隔越小越好。该程序可为与FSP相类似的反应堆系统的瞬态分析和安全分析提供参考。 相似文献
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为了实现对核电厂多样化驱动系统的整体验证,通过仿真技术建立了核电厂高精度工艺模型和实时的仪控系统模型,开发了验证多样化驱动系统的接口通信软件。该多样化驱动系统通过对这些状态或数值信号的响应产生相应的控制或保护逻辑,输出调节量等各种过程参数送至验证平台工艺数学模型进行计算,进而得到被验证的多样化驱动系统接入后的电厂状态参数,测试人员可根据这些状态参数确定多样化驱动系统的控制逻辑和响应的正确性。实验结果表明,该整体验证方法能够实现对核电厂多样化驱动系统的在稳态和瞬态工况下的闭环响应验证,可获得较好的验证效果。 相似文献
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核电厂辐射监测系统用于对电厂工艺、流出物及工作场所的辐射监测,确保电厂的安全运行及保护工作人员和周围群众的健康。计算机技术的快速发展,为电厂辐射监测系统实现全数字化创造了条件。从岭澳核电一期、岭澳核电二期到宁德核电,电厂辐射监测系统总体结构发生了巨大的变化。本文针对核电厂辐射监测系统在优化过程中遇到的技术问题及改进方案进行分析讨论。 相似文献
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汽轮机组在中国实验快堆(CEFR)三回路中承担了将热能转换为电能的重要作用,但自安装以来,未在40%P0(P0为满功率)以上工况下运行,故需对其进行必要的仿真模拟。本文根据CEFR中汽轮机组的实际模型,通过Flowmaster仿真平台建立了汽轮机组的仿真模型。利用该模型,得到了满功率运行工况下的稳态结果,该结果验证了设计参数。同时,完成了由满功率到40%P0工况下的瞬态仿真模拟,验证了汽轮机组的部分性能和运行情况。仿真结果表明,利用Flowmaster建立的仿真模型运行情况基本符合设计要求,并为实际运行提供了一定的参考价值。该模型对后续验证快堆三回路其他系统的仿真模型具有一定的参考意义。 相似文献
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HTR-PM二回路图形建模与仿真研究 总被引:1,自引:0,他引:1
介绍了在vPower仿真平台上嵌入THERMIX代码来研究紧凑型高温气冷堆仿真机的方法。根据模块式高温气冷堆示范电厂二回路系统的特点和结构,利用vPower仿真平台建立二回路各个系统的组态模型并进行稳态和瞬态仿真结果分析。结果表明,稳态值与设计值的误差均在2%范围内;额定工况下,主调节阀关小和给水流量减少2个典型瞬态响应过程曲线趋势合理,动态响应各项指标及最终稳定值满足要求;循环水泵关闭导致凝汽器循环水中断的事故情况下,因凝汽器真空过低调节主蒸汽阀门迅速关闭,主蒸汽流量减小同时汽轮机跳闸。 相似文献
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LINMeng YANGYan-Hua ZHANGRong-Hua HURui 《核技术(英文版)》2005,16(3):177-180
A nuclear power plant real-time engineering simulator was developed based on general-purpose thermal-hydraulic system simulation code RELAPS. It mainly consists of three parts: improved thermal-hydraulic system simulation code RELAP5, control and protection system and human-machine interface. A normal transient of CHASHMA nuclear power plant turbine step load change from 100% to 90% of full power, was simulated by the engineering simulator as an application example. This paper presents structure and main features of the engineering simulator, and application results are shown and discussed. 相似文献
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《Fusion Engineering and Design》2014,89(4):354-359
A supercritical recompression CO2 power cycle has been simulated using the system code RELAP5–3D. This code is being developed by INL and has traditionally been used in the simulation of operational and accidental transients in fission nuclear plants. The aim of the work presented here, developed within the framework of the Spanish Fusion Technology Program Consolider TECNO_FUS, is to take advantage of the simulation capabilities of RELAP5–3D in a field where little if any experience exists in the use of the code; i.e., the simulation of the heat fluxes and the thermodynamic cycle that, in a fusion power plant, will convert thermal power from plasma into mechanical power as a previous step to electricity generation. Code capabilities that make it suitable for this purpose are, for instance, the compressor model and the libraries of fluid properties (among them CO2 and LiPb).The reference plant for the simulation is the one being designed under TECNO_FUS, which is the Spanish proposal for DEMO. The model of the plant includes the primary coolant systems, i.e. helium and LiPb in the Spanish dual coolant modular design (doble refrigerante modular, DRM), compressors, turbine and heat exchangers (Printed Circuit type).After the model has been set-up, several steady-state calculations have been run to test the performance of the model. After designing some minimal control features and adjusting their parameters, a few transient calculations have been run in order to demonstrate the capabilities of code and model. Finally, strengths and weaknesses of code and model are highlighted, along with some conclusions on their suitability for fusion technology applications. 相似文献
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