基于数值仿真的抛物槽式太阳能集热器研究进展

doi:10.12096/j.2096-4528.pgt.21061

摘要/Abstract

摘要：

介绍了抛物槽式太阳能集热器的数值仿真研究进展，特别是对集热管内流场与聚光器外流场所涉及的数值仿真研究进行了综述。在集热管内流场研究中，传热介质类型、聚光特性对集热性能与热应力分布影响显著，尤其在水/蒸汽介质集热回路中，特有的气–液两相流叠加管外非均匀热流密度分布有可能导致严重的集热管热应力弯曲变形问题。在聚光器外流场研究中，由于实际风速较大，超薄镜片的结构强度较低，聚光器承受风载变形，致使光学效率损失，甚至会导致抛物槽式集热器结构失效，直接影响整个集热镜场正常工作。

关键词: 碳中和, 太阳能光热技术, 抛物槽式集热器, 内流场, 外流场, 数值模拟

Abstract:

The research progress of numerical simulation of parabolic trough solar collector was introduced. Especially the numerical simulation studies of the internal flow field in the collector tube and the external flow field of the concentrator were reviewed. In the study of the internal flow field in the collector tube, the type of heat transfer fluids and the characteristics of optical concentration have a significant effect on the heat collection performance and thermal stress distribution, especially in the water/steam medium heat collection loop. The unique gas-liquid two-phase flow superposition of the non-uniform heat flux distribution outside the tube may lead to serious thermal stress bending deformation of the collector tube. In the study of the external flow field of the concentrator, due to the high actual wind speed and the low structural strength of the ultra-thin lens, the concentrator is subjected to wind load deformation, resulting in the loss of optical efficiency, and even leading to the failure of the parabolic trough collector structure, which directly affects the normal operation of the whole collector field.

Key words: carbon neutrality, solar-thermal technology, parabolic trough collector, internal flow field, external flow field, numerical simulation

中图分类号:

TK513.1

王立, 张智, 施瑶璐, 徐超, 孙杰. 基于数值仿真的抛物槽式太阳能集热器研究进展[J]. 发电技术, 2021, 42(6): 643-652.

Li WANG, Zhi ZHANG, Yaolu SHI, Chao XU, Jie SUN. Research Progress of Parabolic Trough Solar Collector Based on Numerical Simulation[J]. Power Generation Technology, 2021, 42(6): 643-652.

图/表 11

图1 抛物槽式集热器

Fig.1 Parabolic trough collector

图2 集热管

Fig.2 Heat collecting element

图3 温度和速度对吸收管最大温差的影响

Fig.3 Influence of temperature and velocity on the maximum temperature difference of absorber tube

图4 吸收管内插入螺旋纽带示意图

Fig.4 Schematic diagram of twisted tape inserted in absorber tube

图5 吸收管内部肋片分布

Fig.5 Distribution of ribs in absorption tube

图6 不同辐射条件下吸收管壁温度变化曲线

Fig.6 Temperature variation curve of absorber tube wall under different radiation conditions

图7 分层流下集热回路温度分布

Fig.7 Temperature distribution of heat collecting loop under stratified flow

图8 不同流型下吸收管温度场分布

Fig.8 Temperature distribution of absorber tube under different flow patterns

图9 实测风速变化曲线

Fig.9 Measured wind speed variation curve

图10 不同开口方位下风速和风载的变化曲线

Fig.10 Variation curve of wind speed and wind load at different orientations

图11 38°开口下风速对变形和光学效率损失的影响

Fig.11 Influence of wind speed on deformation and optical efficiency loss at 38°

参考文献 43

1	孙蔚, 申洪, 侯金鸣, 等. 欧洲能源电力发展路线研究[J]. 发电技术, 2021, 42 (1): 94- 102.
	SUN W , SHEN H , HOU J M , et al. Research on European roadmap for energy and electrical technology[J]. Power Generation Technology, 2021, 42 (1): 94- 102.
2	申洪, 周勤勇, 刘耀, 等. 碳中和背景下全球能源互联网构建的关键技术及展望[J]. 发电技术, 2021, 42 (1): 8- 19.
	SHEN H , ZHOU Q Y , LIU Y , et al. Key technologies and prospects for the construction of global energy internet under the background of carbon neutral[J]. Power Generation Technology, 2021, 42 (1): 8- 19.
3	张哲旸, 巨星, 潘信宇, 等. 太阳能光伏-光热复合发电技术及其商业化应用[J]. 发电技术, 2020, 41 (3): 220- 230.
	ZHANG Z Y , JU X , PAN X Y , et al. Photovoltaic/concentrated solar power hybrid technology and its commercial application[J]. Power Generation Technology, 2020, 41 (3): 220- 230.
4	刘尧东, 张燕平, 万亮, 等. 基于Al₂O₃纳米流体的槽式太阳能热发电集热器传热建模及性能分析[J]. 发电技术, 2021, 42 (2): 230- 237.
	LIU Y D , ZHANG Y P , WAN L , et al. Heat transfer modelling and performance analysis of trough solar thermal power collector based on Al₂O₃ nanofluid[J]. Power Generation Technology, 2021, 42 (2): 230- 237.
5	CHENG Z D , HE Y L , CUI F Q , et al. Numerical simulation of a parabolic trough solar collector with nonuniform solar flux conditions by coupling FVM and MCRT method[J]. Sol Energy, 2012, 86 (6): 1770- 1784. DOI
6	RAY S , TRIPATHY A K , SAHOO S S , et al. Performance analysis of receiver of parabolic trough solar collector: effect of selective coating, vacuum and semitransparent glass cover[J]. International Journal of Energy Research, 2018, 42 (13): 4235- 4249. DOI
7	TELES M D P R , ISMAILl K A R , ARABKOOHSAR A . A new version of a low concentration evacuated tube solar collector: optical and thermal investigation[J]. Solar Energy, 2019, 180, 324- 339. DOI
8	BELLOS E , KORRES D , TZIVANIDIS C , et al. Design, simulation and optimization of a compound parabolic collector[J]. Sustainable Energy Technologies and Assessments, 2016, 16, 53- 63. DOI
9	BELLOS E , TZIVANIDIS C , SAID Z . A systematic parametric thermal analysis of nanofluid-based parabolic trough solar collectors[J]. Sustainable Energy Technologies and Assessments, 2020, 39, 100714. DOI
10	YILMAZ I H , MWESIGYE A , GOKSU TT . Enhancing the overall thermal performance of a large aperture parabolic trough solar collector using wire coil inserts[J]. Sustainable Energy Technologies and Assessments, 2020, 39, 100696. DOI
11	ANTONAIA A , CASTALDO A , ADDONIZIO M L , et al. Stability of W-Al₂O₃ cermet based solar coating for receiver tube operating at high temperature[J]. Solar Energy Materials and Solar Cells, 2010, 94 (10): 1604- 1611. DOI
12	GAO X H , GUO H X , ZHOU T H , et al. Optical properties and failure analysis of ZrC-ZrOx ceramic based spectrally selective solar absorbers deposited at a high substrate temperature[J]. Solar Energy Materials and Solar Cells, 2018, 176, 93- 99. DOI
13	LIU J , LEI D , LI Q . Vacuum lifetime and residual gas analysis of parabolic trough receiver[J]. Renew Energy, 2016, 86, 949- 954. DOI
14	ESPINOSA-RUEDA G , NAVARRO HERMOSO J L , MARTÍNEZ-SANZ N , et al. Vacuum evaluation of parabolic trough receiver tubes in a 50 MW concentrated solar power plant[J]. Solar Energy, 2016, 139, 36- 46. DOI
15	赵晴, 赵力, 王志, 等. 槽式太阳能集热管非均匀受热研究[J]. 太阳能学报, 2018, 39 (6): 1526- 1532.
	ZHAO Q , ZHAO L , WANG Z . Study of non-uniform heating of trough solar collector[J]. Acta Energiae Solaris Sinica, 2018, 39 (6): 1526- 1532.
16	王金平. 槽式太阳能光热电站关键技术及运行特性的研究[D]. 南京: 东南大学, 2017.
	WANG J P. Research on the key technologies and operational characteristics of parabolic trough solar power plant[D]. Nanjing: Southeast University, 2017.
17	LEI D Q , FU X Q , REN Y C , et al. Temperature and thermal stress analysis of parabolic trough receivers[J]. Renew Energy, 2019, 136, 403- 413. DOI
18	MWESIGYE A , BELLO-OCHENDE T , MEYER J P . Heat transfer and entropy generation in a parabolic trough receiver with wall-detached twisted tape inserts[J]. International Journal of Thermal Sciences, 2016, 99, 238- 257. DOI
19	BELLOS E , TZIVANIDIS C , TSIMPOUKIS D . Multi-criteria evaluation of parabolic trough collector with internally finned absorbers[J]. Applied Energy, 2017, 205, 540- 561.
20	WANG Y J , LIU Q B , LEI J , et al. A three-dimensional simulation of a parabolic trough solar collector system using molten salt as heat transfer fluid[J]. Applied Thermal Engineering, 2014, 70 (1): 462- 476.
21	王艳娟. 聚光太阳能与热化学反应耦合的发电系统研究[D]. 北京: 中国科学院研究生院(工程热物理研究所), 2015.
	WANG Y J. Investigation on multiphysics coupling processes and system integration of the concentrated solar thermal energy[D]. Beijing: Chinese Academy of Sciences (Institute of Engineering Thermophysics), 2015.
22	ROLDÁN M I , VALENZUELA L , ZARZA E . Thermal analysis of solar receiver pipes with superheated steam[J]. Applied Energy, 2013, 103, 73- 84.
23	LI L , SUN J , LI Y S . Thermal load and bending analysis of heat collection element of direct-steam-generation parabolic-trough solar power plant[J]. Applied Thermal Engineering, 2017, 127, 1530- 1542.
24	HACHICHA A A , RODRÍGUEZ I , GHENAI C . Thermo-hydraulic analysis and numerical simulation of a parabolic trough solar collector for direct steam generation[J]. Applied Energy, 2018, 214, 152- 165.
25	WANG L , ZHANG Z , SUN J , et al. A trans-dimensional multi-physics coupled analysis method for direct-steam-generation parabolic-trough loop[J]. Applied Thermal Engineering, 2021, 193, 117011.
26	MWESIGYE A , HUAN Z , MEYER J P . Thermodynamic optimization of the performance of a parabolic trough receiver using synthetic oil-Al₂O₃ nanofluid[J]. Applied Energy, 2015, 156, 398- 412.
27	HACHICHA A A , SAID Z , RAHMAN S M A , et al. On the thermal and thermodynamic analysis of parabolic trough collector technology using industrial-grade MWCNT based nanofluid[J]. Renew Energy, 2020, 161, 1303- 1317.
28	ALLOUHI A , AMINE M B , SAIDUR R , et al. Energy and exergy analyses of a parabolic trough collector operated with nanofluids for medium and high temperature applications[J]. Energy Conversion and Management, 2018, 155, 201- 217.
29	MINEA A A , EL-MAGHLANY W M . Influence of hybrid nanofluids on the performance of parabolic trough collectors in solar thermal systems: recent findings and numerical comparison[J]. Renew Energy, 2018, 120, 350- 364.
30	GOOD P , AMBROSETTI G , PEDRETTI A , et al. A 1.2 MWth solar parabolic trough system based on air as heat transfer fluid at 500℃: engineering design, modelling, construction, and testing[J]. Solar Energy, 2016, 139, 398- 411.
31	QIU Y , LI M J , HE Y L , et al. Thermal performance analysis of a parabolic trough solar collector using supercritical CO₂ as heat transfer fluid under non-uniform solar flux[J]. Applied Thermal Engineering, 2017, 115, 1255- 1265.
32	吴闽强. 液态铅铋槽式太阳能集热管设计及性能分析[D]. 合肥: 中国科学技术大学, 2018.
	WU M Q. Design and analysis of parabolic trough solar collector with lead-bismuth eutectic[D]. Hefei: University of Science and Technology of China, 2018.
33	GONG B , WANG Z , LI Z , et al. Field measurements of boundary layer wind characteristics and wind loads of a parabolic trough solar collector[J]. Solar Energy, 2012, 86 (6): 1880- 1898.
34	NAEENI N , YAGHOUBI M . Analysis of wind flow around a parabolic collector (1) fluid flow[J]. Renewable Energy, 2007, 32 (11): 1898- 1916.
35	ZEMLER M K , BOHL G , RIOS O , et al. Numerical study of wind forces on parabolic solar collectors[J]. Renewable Energy, 2013, 60, 498- 505.
36	PAETZOLD J , COCHARD S , VASSALLO A , et al. Wind engineering analysis of parabolic trough solar collectors: the effects of varying the trough depth[J]. Journal of Wind Engineering and Industrial Aerodynamics, 2014, 135, 118- 128.
37	ANDRE M , PENTEK M , BLETZINGER K U , et al. Aeroelastic simulation of the wind-excited torsional vibration of a parabolic[J]. Journal of Wind Engineering and Industrial Aerodynamics, 2017, 165, 67- 78.
38	HACHICHA A A , RODRÍGUEZ I , CASTRO J , et al. Numerical simulation of wind flow around a parabolic trough solar collector[J]. Applied Energy, 2013, 107, 426- 437.
39	MIER-TORRECILLA M , HERRERA E , DOBLARÉ M . Numerical calculation of wind loads over solar collectors[J]. Energy Procedia, 2014, 49, 163- 173.
40	ANDRE M , MIER-TORRECILLA M , WÜCHNER R . Numerical simulation of wind loads on a parabolic trough solar collector using lattice Boltzmann and finite element methods[J]. Journal of Wind Engineering and Industrial Aerodynamics, 2015, 146, 185- 194.
41	ZHANG Z , SUN J , WANG L , et al. Multiphysics-coupled study of wind load effects on optical performance of parabolic trough collector[J]. Solar Energy, 2020, 207, 1078- 1087.
42	RIFFELMANNA K , RICHERTA T , NAVAA P , et al. Ultimate trough^®: a significant step towards cost-competitive CSP[J]. Energy Procedia, 2014, 49 (9): 1831- 1839.
43	WINKELMANN U , KAMPER C , HOFFER R , et al. Wind actions on large-aperture parabolic trough solar collectors: wind tunnel tests and structural analysis[J]. Renewable Energy, 2020, 146, 2390- 2407.

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