Numerical study on thermal stress and cold startup induced thermal fatigue of a water/steam cavity receiver in concentrated solar power (CSP) plants

Zhenjie Wan; Jiabin Fang; Nan Tu; Jinjia Wei; Mumtaz A. Qaisrani

首页> 外文期刊>Solar Energy >Numerical study on thermal stress and cold startup induced thermal fatigue of a water/steam cavity receiver in concentrated solar power (CSP) plants

【24h】

Numerical study on thermal stress and cold startup induced thermal fatigue of a water/steam cavity receiver in concentrated solar power (CSP) plants

机译：聚光太阳能电站水/蒸汽腔接收器热应力和冷启动引起的热疲劳的数值研究

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

The high temperature receivers in CSP plants should startup frequently, so the thermal stress and the fatigue failure are critical important for its safety and stability. In our present study, a computation model is proposed for a water/steam cavity receiver in CSP plant. The model couples the light propagation, the light-heat conversion, the thermo-elasticity and the thermal fatigue analysis together. Monte Carlo ray tracing method (MCRT), finite volume method (FVM) and boiling heat transfer are coupled to get the thermal boundary of the boiling panel. Finite element method (FEM) is adopted to obtain the temperature and stress–strain distribution of the boiling panel. Elastic stress analysis and equivalent stress fatigue assessment method is used to investigate the fatigue failure of the boiling panel. Two different structures of the boiling panel are researched, following results are obtained: The heat flux on the boiling panel is highly non-uniform and it results in the similar non-uniform distributions of temperature and stress-strain as well as the displacement of the boiling panel. The non-uniform stress-strain leads to the warping of the boiling panel and the largest displacement is in the direction normal to the heat absorbing surface toward the cavity internal, the largest displacement range is 17 cm. Fins of the boiling panel at the elbow region (case-1 in the present study) can lead to hot spots of which the temperature is extremely higher than that of boiling tubes, cutting off the fins at the elbow region (case-2 in the present study) can eliminate the hot spots and has no impact on temperature distribution of the boiling panel’s main part. The temperature difference on the cross section of the boiling tube is very high (about 130 °C while the heat flux is about 350 kW/m2) both in radial and circumferential direction, and this high temperature difference results in the high thermal stress on the boiling panel and the maximum thermal stress occurs at the welding region. The welding quality has a significant impact on the fatigue failure of the boiling panel. For a receiver design life of 20 years, membrane wall with cutting off the fins at the elbow region (case-2 in the present study) is a good design and the welding quality level 3 should be ensured at least and only one cold startup for a day is permitted.

机译：CSP工厂中的高温接收器应经常启动，因此热应力和疲劳破坏对其安全性和稳定性至关重要。在我们目前的研究中，为CSP工厂中的水/蒸汽腔接收器提出了一种计算模型。该模型将光传播，光热转换，热弹性和热疲劳分析耦合在一起。结合蒙特卡洛射线追踪法（MCRT），有限体积法（FVM）和沸腾传热来获得沸腾板的热边界。采用有限元方法（FEM）来获得沸腾板的温度和应力-应变分布。弹性应力分析和等效应力疲劳评估方法用于研究沸腾板的疲劳破坏。对沸腾板的两种不同结构进行了研究，得出以下结果：沸腾板上的热通量高度不均匀，导致相似的温度和应力应变不均匀分布以及热位移。沸腾的面板。应力应变不均匀会导致沸腾板翘曲，最大的位移是在垂直于吸热面的方向上朝向腔体内部，最大的位移范围为17 cm。肘部区域（本研究中的情况1）的沸腾板翅片会导致温度远高于沸腾管温度的热点，从而切断肘部区域（翅片中的情况2）的翅片。目前的研究）可以消除热点，并且对沸腾板主体的温度分布没有影响。沸腾管横截面的温度在径向和圆周方向上都非常高（大约130 C，而热通量大约为350 kW / m2），并且这种高的温度差会导致沸腾管的热应力较高。面板沸腾，并且最大热应力发生在焊接区域。焊接质量对沸腾板的疲劳破坏有重要影响。对于接收器设计寿命为20年的情况，在肘部区域切掉鳍片的膜壁（本研究中为案例2）是一种良好的设计，并且应确保至少达到焊接质量等级3，并且只有一个冷启动用于允许一天。

著录项

来源
《Solar Energy》 |2018年第8期|430-441|共12页
作者
Zhenjie Wan; Jiabin Fang; Nan Tu; Jinjia Wei; Mumtaz A. Qaisrani;
展开▼
作者单位

State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University;

School of Chemical Engineering and Technology, Xi’an Jiaotong University;

School of Mechanical and Electrical Engineering, Xi’an Polytechnic University;

State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University,School of Chemical Engineering and Technology, Xi’an Jiaotong University;

State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University;

展开▼
收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类
关键词
Thermal stress; Fatigue failure; Cavity receiver; Membrane wall; Solar power tower;

机译：热应力疲劳破坏空腔接收器膜墙太阳能塔;

相似文献

外文文献
中文文献
专利

1. Experimental and Numerical Study on the Thermal Performance of a Water/Steam Cavity Receiver [J] . Jiabin Fang, Jinjia Wei, Nan Tu Energies . 2013,第3期

机译：水/蒸汽腔接收器热性能的实验和数值研究
2. Numerical simulation on convective thermal loss of a cavity receiver in a solar tower power plant [J] . Hu Tian, Jia Peiying, Wang Yueshe, Solar Energy . 2017,第jula期

机译：太阳能塔电站空腔接收器对流热损失的数值模拟
3. CSP (Concentrated Solar Power) - Tower Solar Thermal Desalination Plant [J] . Huseyin Murat Cekirge, Serdar Eser Erturan, Richard Stanley Thorsen American Journal of Modern Energy . 2020,第2期

机译：CSP（集中太阳能） - 塔太阳能热海水淡化厂
4. Concentrated solar power: What a South African company has learned from designing, building and commercialising a Linear Fresnel Concentrated Solar Thermal Power (CSP) plant [C] . Wilson R, Prange J Conference on the industrial and commercial use of energy . 2013

机译：聚光太阳能：一家南非公司从设计，建造和商业化线性菲涅尔聚光太阳能热电厂（CSP）中学到了什么
5. Experimental Investigation of Thermophysical Properties of Enhanced Nitrate Salt Nanofluids for Thermal Energy Storage (TES) in Concentrated Solar Power (CSP) Systems [D] . Eruvaram, Vamsikiran. 2018

机译：集中式太阳能（CSP）系统中增强型硝酸盐纳米流体热能存储（TES）的热物理性质的实验研究
6. Synthesis and Characterization of Molten Salt Nanofluids for Thermal Energy Storage Application in Concentrated Solar Power Plants—Mechanistic Understanding of Specific Heat Capacity Enhancement [O] . Binjian Ma, Donghyun Shin, Debjyoti Banerjee 2020

机译：浓缩太阳能发电厂热能储存应用熔盐纳米流体的合成与表征 - 对特定热容量增强的机械理解
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。
8. 10-MWe Solar-Thermal Central-Receiver Pilot Plant: Receiver Cold-Flow (Test 1010) and Receiver Steam-Generation (Test 1030) Test Report [R] . Gehrs, C. W. 1983

机译：10mWe太阳能热中央接收器中试装置：接收器冷流（测试1010）和接收器蒸汽发生（测试1030）测试报告

Numerical study on thermal stress and cold startup induced thermal fatigue of a water/steam cavity receiver in concentrated solar power (CSP) plants

摘要

著录项

相似文献

相关主题

期刊订阅