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穿心电加热管道仿真和集输规律分析
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作者 李焯超 耿宇 +5 位作者 阎凤元 齐世琨 陈君卓 徐宁 梁永图 谢正芳 《油气田地面工程》 2024年第9期14-23,共10页
随着外围油田深入开发,零散区块不断开采,穿心电加热技术得到了广泛应用。由于电线插入后管道内流体流动和传热的规律尚不明确,因此现场主要依靠保持电加热系统高功率运行来保证原油的安全输送,能耗浪费严重。针对穿心电加热管道的环空... 随着外围油田深入开发,零散区块不断开采,穿心电加热技术得到了广泛应用。由于电线插入后管道内流体流动和传热的规律尚不明确,因此现场主要依靠保持电加热系统高功率运行来保证原油的安全输送,能耗浪费严重。针对穿心电加热管道的环空结构,基于质量、动量和能量守恒定律,分析电线插入管道后带来的摩擦和加热效应,建立了穿心电加热管道稳态温度和压力计算模型。结合智能算法校核摩阻和总传热系数,实现了不同功率下穿心电加热管道沿线水热力参数的准确计算;同时分析了含水率、输量、起点温度、功率和加热方式对电加热管道温度、压力、维温功率和维温能耗的影响情况。利用大庆油田电加热管道现场数据对模型进行了验证,结果显示:压力平均误差为7%,温度平均误差为4.16%,能够对生产起到指导作用,基本满足生产需要;此外,增大输量有助于节能降耗,全线维温是最节能的运行方式。 展开更多
关键词 穿心电加热管道 水热力仿真 集输规律 能耗分析
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Integration of CATHENA Thermal-Hydraulic Model with CANDU 6 Analytical Simulator Controller
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作者 Majid Borairi Hooman Javidnia Dave Wallace Joe Tseng Vincent Lau Florentin Caracas 《Journal of Energy and Power Engineering》 2013年第12期2300-2305,共6页
This paper introduces a powerful design and analysis tool named SIMCAT, that is developed to support applications to license a CANDU nuclear reactor, refurbish projects, and support the existing CANDU stations. It con... This paper introduces a powerful design and analysis tool named SIMCAT, that is developed to support applications to license a CANDU nuclear reactor, refurbish projects, and support the existing CANDU stations. It consists of the CATHENA (Canadian Algorithm for Thermo-Hydraulic Network Analysis), the control logics from C6SIM (CANDU 6 Analytical Simulator), and a communication protocol, PVM (parallel virtual machine). This is the first time that CATHENA has been successfully coupled directly with a program written in another language. The independence of CATHENA and the C6SIM controllers allows the development of both CATHENA and C6SIM controller to proceed independently. 展开更多
关键词 CANDU CATHENA C6SIM PVM SIMCAT THERMAL-HYDRAULIC control system.
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