NUMERICAL MODELING OF MOISTURE SEPARATION PROCESSES IN THE PGV-1000M STEAM GENERATOR

M. N. Mechtaeva; N. B. Ivanova; V. A. Gorbunov

首页> 外文期刊>Hydrotechnical Construction >NUMERICAL MODELING OF MOISTURE SEPARATION PROCESSES IN THE PGV-1000M STEAM GENERATOR

【24h】

NUMERICAL MODELING OF MOISTURE SEPARATION PROCESSES IN THE PGV-1000M STEAM GENERATOR

机译：PGV-1000M蒸汽发生器中水分分离过程的数值模拟

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

A description is presented of the ANSYS Fluent-19.1 finite-element software program for a rigorous mathematical model to study the processes of separating steam moisture that occurs in the steam space of the PGV-1000M steam generator. Calculations of the pressure distribution in the steam space, velocity fields of the generated steam, trajectories of steam flow and the condensed moisture, and distribution of the concentration of moisture in the steam space were done, and conclusions were drawn based on analysis of the obtained results and a suggestions for a methodology for further study of the issue.

机译：提出了一种用于严格数学模型的ANSYS FLUENT-19.1有限元软件程序的描述，以研究分离在PGV-1000M蒸汽发生器的蒸汽空间中的蒸汽水分的过程。完成蒸汽空间中的压力分布，所产生的蒸汽的速度场，蒸汽流量的轨迹以及蒸汽空间中水分浓度的分布，并基于所获得的分析来绘制结论结果及其进一步研究问题的方法的建议。

著录项

来源
《Hydrotechnical Construction》 |2020年第2期|220-224|共5页
作者
M. N. Mechtaeva; N. B. Ivanova; V. A. Gorbunov;
展开▼
作者单位

V. I. Lenin Ivanovo State Power University Ivanovo Russia;

V. I. Lenin Ivanovo State Power University Ivanovo Russia;

V. I. Lenin Ivanovo State Power University Ivanovo Russia;

展开▼
收录信息
原文格式 PDF
正文语种 eng
中图分类
关键词
steam generator; steam separation; work simulation; numerical studies; ANSYS;

机译：蒸汽发生器;蒸汽分离;工作模拟;数值研究;ansys.;

相似文献

外文文献
中文文献
专利

1. Numerical Investigation of Mass Transfer in the Flow Path of the Experimental Model of the PGV-1500 Steam Generator's Steam Receiving Section with Two Steam Nozzles [J] . L. A. Golibrodo, A. A. Krutikov, Yu. N. Nadinskii, Thermal engineering . 2014,第10期

机译：具有两个蒸汽喷嘴的PGV-1500蒸汽发生器的蒸汽接收段实验模型在流路中传质的数值研究
2. Structure modification and numerical study of the moisture-separation performance of special crossunder pipe separators for nuclear power steam turbines [J] . Wang Xinjun, Cheng Peng, Xie Jinwei, Journal of Mechanical Science and Technology . 2015,第8期

机译：核动力汽轮机专用跨接式管道分离器的结构改造及除水性能的数值研究
3. Numerical Simulation of Heat and Mass Transfer Processes in the Nozzle and Expansion Unit of the Separator-Steam-Generator System in Waste-Heat Utilization Complex [J] . V. I. Artemov, K. B. Minko, G. G. Yankov Thermal engineering . 2015,第12期

机译：废热利用厂分离器-蒸汽-发生器系统喷嘴和膨胀单元传热传质过程的数值模拟
4. NUMERICAL SUBSTANTIATION OF MAXIMUM PRESSURE IN PNEUMATIC-AQUARIUM METHOD OF TESTING THE TIGHTNESS OF HEAT EXCHANGE TUBES AND THEIR WELDED JOINTS OF THE PGV-1000M STEAM GENERATOR [C] . O. V. MAKHNENKO International Conference on Computer Technology in Welding and Manufacturing . 2006

机译：用于测试热交换管的紧密性的气动水族箱方法中最大压力的数值实质及其PGV-1000M蒸汽发生器焊接接头
5. Towards a computer simulation of moisture separation in steam turbine systems. [D] . Houmani, Ahmed. 1994

机译：迈向蒸汽轮机系统中水分分离的计算机模拟。
6. Modeling Heat and Moisture Transport in Steam-Cured Mortar: Application to Aashto Type Vi Beams [O] . E. Hernández-Bautista, S. Sandoval-Torres, P. F. de J. Cano-Barrita, -1

机译：蒸汽固化砂浆中的热湿传递模型：在Aashto型Vi型梁中的应用
7. This article presents a new numerical model describing the behaviour of a thermally thick wood sample exposed to high solar heat flux (above 1 MW/m2). A preliminary study based on dimensionless numbers is used to classify the problem and support model building assumptions. Then, a model based on mass, momentum and energy balance equations is proposed. These equations are coupled with liquid-vapour drying model and pseudo species biomass degradation model. By comparing to a former experimental study, preliminary results have shown that these equations are not enough to accurately predict biomass behaviour under high solar heat flux. Indeed, a char layer acting as radiative shield forms on the sample exposed surface. In addition to this classical set of equations, it is mandatory to take into account radiation penetration into the medium. Furthermore, as biomass contains water, medium deformation consecutively to char steam gasification must also be implemented. Finally, with the addition of these two strategies, the model is able to properly capture the degradation of biomass when exposed to high radiative heat flux over a range of sample initial moisture content. Additional insights of biomass behaviour under high solar heat flux were also derived. Drying, pyrolysis and gasification fronts are present at the same time inside of the sample. The coexistence of these three thermochemical fronts leads to char gasification by the steam produced from drying of the sample, which it is the main phenomenon behind medium ablation. [O] . Pozzobon, Victor, Salvador, Sylvain, Bézian, Jean Jacques 2018

机译：本文提供了一个新的数值模型，该模型描述了暴露于高太阳热通量（高于1 / MW / m2）的热厚木材样品的行为。基于无量纲数的初步研究用于对问题进行分类并支持模型构建假设。然后，提出了一种基于质量，动量和能量平衡方程的模型。这些方程式与液体蒸汽干燥模型和假物种生物质降解模型耦合。通过与以前的实验研究进行比较，初步结果表明，这些方程不足以准确预测高太阳热通量下的生物量行为。的确，在样品暴露的表面上形成了充当辐射屏蔽层的炭层。除了这套经典的方程式之外，还必须考虑到辐射向介质的渗透。此外，由于生物质中含有水，因此还必须在炭蒸气汽化后进行连续的介质变形。最后，通过添加这两种策略，该模型能够在一定范围的样品初始水分含量下暴露于高辐射热通量的情况下，正确捕获生物质的降解。还得出了在高太阳热通量下生物量行为的其他见解。样品内部同时存在干燥，热解和气化前沿。这三个热化学前沿的共存会导致样品干燥产生的蒸汽产生焦炭气化，这是介质烧蚀的主要现象。

NUMERICAL MODELING OF MOISTURE SEPARATION PROCESSES IN THE PGV-1000M STEAM GENERATOR

摘要

著录项

相似文献

相关主题

期刊订阅