Performance Enhancement of Parabolic Trough Collector by Using Homogenizer and Spiral

  • LI Peijing ,
  • LIU Taixiu ,
  • QIN Yuanlong ,
  • ZHENG Zhimei ,
  • ZHAO Kai ,
  • LIU Qibin
展开
  • 1. School of Energy, Power, and Mechanical Engineering, North China Electric Power University, Beijing 102206, China
    2. Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
    3. University of Chinese Academy of Science, Beijing 100049, China
    4. Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei 230027, China
    5. Research Institute of Science and Technology of China Three Gorges Group Corporation, Beijing 100038, China

网络出版日期: 2024-03-07

基金资助

This work was supported by the Distinguish Young Scholars of the National Natural Science Foundation of China (No. 52225601), and the Major Program of the National Natural Science Foundation of China (No. 52090061).

版权

Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2024

Performance Enhancement of Parabolic Trough Collector by Using Homogenizer and Spiral

  • LI Peijing ,
  • LIU Taixiu ,
  • QIN Yuanlong ,
  • ZHENG Zhimei ,
  • ZHAO Kai ,
  • LIU Qibin
Expand
  • 1. School of Energy, Power, and Mechanical Engineering, North China Electric Power University, Beijing 102206, China
    2. Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
    3. University of Chinese Academy of Science, Beijing 100049, China
    4. Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei 230027, China
    5. Research Institute of Science and Technology of China Three Gorges Group Corporation, Beijing 100038, China

Online published: 2024-03-07

Supported by

This work was supported by the Distinguish Young Scholars of the National Natural Science Foundation of China (No. 52225601), and the Major Program of the National Natural Science Foundation of China (No. 52090061).

Copyright

Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2024

摘要

在传统的槽式太阳能集热器中,由于线聚焦的局限性,聚光能流密度不均匀,导致集热管在径向方向存在较大的温度梯度,在实际工程应用中容易引起弯曲爆管、热效率降低等一系列问题。针对这个问题,本论文从改进聚光均匀性和强化内部传热的思路出发,提出了一种新型集热器,利用二次匀光和管内螺旋导流的协同作用,改善了集热器的热变形并提高效率。通过构建三维的光-热-结构多物理场耦合模型,探究了不同工况下新型集热器的聚光能流、温度、热变形、热效率、损失以及压降等变化规律。随着螺距增加,集热器的热效率升高,同时也会导致显著的压降,因此选择最优螺距为1040 mm。结果表明,在典型工况下,高太阳辐照和低流速下新型接收器的径向温差减小了62.5 K,热变形减小了96%,热效率提高了1.2个百分点。提出的新型集热器为槽式太阳能集热器减少热变形,提高热效率等方面提供了理论和方法依据。

本文引用格式

LI Peijing , LIU Taixiu , QIN Yuanlong , ZHENG Zhimei , ZHAO Kai , LIU Qibin . Performance Enhancement of Parabolic Trough Collector by Using Homogenizer and Spiral[J]. 热科学学报, 2024 , 33(2) : 658 -674 . DOI: 10.1007/s11630-024-1943-y

Abstract

In conventional parabolic trough collectors (PTCs), sunlight is concentrated at the bottom of the absorber tube, resulting in a significant circumferential temperature gradient across the absorber tube, heat loss and thermal deformation, which affects the safety and thermal performance of PTCs. In this study, a new receiver with homogenizer and spiral (RHS) is proposed, achieving the optical and thermal synergy to ameliorate the thermal deformation of the absorber tube and enhance thermal efficiency. A plane structure homogenizer is designed to improve uniformity of the concentrated solar flux of absorber tube through second reflection. In combination with the spiral, it improves the optical-thermal efficiency of the PTC by enhancing heat exchange between the fluid and the backlight side of the absorber tube. The performance of the collector is numerically studied by building a three-dimensional coupled light-thermal-structure model. The results show that the thermal deformation of the RHS is reduced by more than 96% and the optical-thermal efficiency is improved by 1.2%–0.63% compared with conventional receivers (CRs) under the same inlet temperature conditions. The proposed receiver is validated to be effective in reducing thermal deformation and improving optical-thermal efficiency.

参考文献

[1] He Y.L., Wang K., Qiu Y., Du B.C., Liang Q., Du S., Review of the solar flux distribution in concentrated solar power: Non-uniform features, challenges, and solutions. Applied Thermal Engineering, 2019, 149: 448–474.
[2] Wang J., Qiu Y., Li Q., Xu M., Wei X., Design and experimental study of a 30 kWe adjustable solar simulator delivering high and uniform flux. Applied Thermal Engineering, 2021, 195: 117215.
[3] Sun J., Zhang Z., Wang L., Zhang Z., Wei J., Comprehensive review of line-focus concentrating solar thermal technologies: Parabolic Trough Collector (PTC) vs Linear Fresnel Reflector (LFR). Journal of Thermal Science, 2020, 29: 1097–1124.
[4] Fan M., Liang H., You S., Zhang H., Yin B., Wu X., Applicability analysis of the solar heating system with parabolic trough solar collectors in different regions of China. Applied Energy, 2018, 221: 100–111.
[5] Qiu Y., He Y.L., Cheng Z.D., Wang K., Study on optical and thermal performance of a linear Fresnel solar reflector using molten salt as HTF with MCRT and FVM methods. Applied Energy, 2015, 146: 162–173.
[6] Mehos M., Turchi C., Vidal J., Wagner M., Ma Z., Ho C., Kolb W., Andraka C., Kruizenga A., Concentrating solar power Gen3 demonstration roadmap, in, National Renewable Energy Lab.(NREL), Golden, CO (United States), 2017.
[7] Bellos E., Tzivanidis C., Alternative designs of parabolic trough solar collectors. Progress in Energy and Combustion Science, 2019, 71: 81–117.
[8] Sandeep H.M., Arunachala U.C., Solar parabolic trough collectors: A review on heat transfer augmentation techniques. Renewable and Sustainable Energy Reviews, 2017, 69: 1218–1231.
[9] Li L., Sun J., Li Y., Thermal load and bending analysis of heat collection element of direct-steam-generation parabolic-trough solar power plant. Applied Thermal Engineering, 2017, 127: 1530–1542.
[10] Norouzi A.M., Siavashi M., Khaliji Oskouei M., Efficiency enhancement of the parabolic trough solar collector using the rotating absorber tube and nanoparticles. Renewable Energy, 2020, 145: 569–584.
[11] Norouzi A.M., Siavashi M., Ahmadi R., Tahmasbi M., Experimental study of a parabolic trough solar collector with rotating absorber tube. Renewable Energy, 2021, 168: 734–749.
[12] Qiu Y., Xu Y., Li Q., Wang J., Wang Q., Liu B., Efficiency enhancement of a solar trough collector by combining solar and hot mirrors. Applied Energy, 2021, 299: 117290.
[13] Gong J.H., Wang J., Lund P.D., Hu E.-Y., Xu Z.C., Liu G.P., Li G.S., Improving the performance of a 2-stage large aperture parabolic trough solar concentrator using a secondary reflector designed by adaptive method. Renewable Energy, 2020, 152: 23–33.
[14] Spirkl W.R.H., Muschaweck J., Timinger A., Optimized compact secondary reflectors for parabolic troughs with tubular absorbers. Solar Energy, 1997, 61: 153–158.
[15] Bellos E., Tzivanidis C., Daniil I., Antonopoulos K.A., The impact of internal longitudinal fins in parabolic trough collectors operating with gases. Energy Conversion and Management, 2017, 135: 35–54.
[16] Bellos E., Tzivanidis C., Tsimpoukis D., Enhancing the performance of parabolic trough collectors using nanofluids and turbulators. Renewable and Sustainable Energy Reviews, 2018, 91: 358–375.
[17] Chen X., Xia X.L., Meng X.L., Dong X.H., Thermal performance analysis on a volumetric solar receiver with double-layer ceramic foam. Energy Conversion and Management, 2015, 97: 282–289.
[18] Shi Y., Sun J., Wei J., Numerical study of new-type receiver with axially-hollow spiral deflector for parabolic trough direct-steam-generation loop of concentrating solar power system. Journal of Thermal Science, 2023: 597–610.
[19] Bellos E., Tzivanidis C., Antonopoulos K.A., Gkinis G., Thermal enhancement of solar parabolic trough collectors by using nanofluids and converging-diverging absorber tube. Renewable Energy, 2016, 94: 213–222.
[20] Javadi F.S., Saidur R., Kamalisarvestani M., Investigating performance improvement of solar collectors by using nanofluids. Renewable and Sustainable Energy Reviews, 2013, 28: 232–245.
[21] Heyhat M.M., Valizade M., Abdolahzade S., Maerefat M., Thermal efficiency enhancement of direct absorption parabolic trough solar collector (DAPTSC) by using nanofluid and metal foam. Energy, 2020, 192: 116662.
[22] He Q., Wang S., Zeng S., Zheng Z., Experimental investigation on photothermal properties of nanofluids for direct absorption solar thermal energy systems. Energy Conversion and Management, 2013, 73: 150–157.
[23] Aggray Mwesigye T.B.-O., Josua P. Meyer, Heat transfer enhancement in a parabolic trough receiver using wall detached twisted tape inserts. in: IMECE2013, San Diego, California, USA, 2013.
[24] Jaramillo O.A., Borunda M., Velazquez-Lucho K.M., Robles M., Parabolic trough solar collector for low enthalpy processes: An analysis of the efficiency enhancement by using twisted tape inserts. Renewable Energy, 2016, 93: 125–141.
[25] Liu P., Lv J., Shan F., Liu Z., Liu W., Effects of rib arrangements on the performance of a parabolic trough receiver with ribbed absorber tube. Applied Thermal Engineering, 2019, 156: 1–13.
[26] Liu P., Zheng N., Liu Z., Liu W., Thermal-hydraulic performance and entropy generation analysis of a parabolic trough receiver with conical strip inserts. Energy Conversion and Management, 2019, 179: 30–45.
[27] Mwesigye A., Bello-Ochende T., Meyer J.P., Heat transfer and thermodynamic performance of a parabolic trough receiver with centrally placed perforated plate inserts. Applied Energy, 2014, 136: 989–1003.
[28] Muñoz J., Abánades A., Analysis of internal helically finned tubes for parabolic trough design by CFD tools. Applied Energy, 2011, 88: 4139–4149.
[29] Bozorg M.V., Hossein Doranehgard M., Hong K., Xiong Q., CFD study of heat transfer and fluid flow in a parabolic trough solar receiver with internal annular porous structure and synthetic oil-Al2O3 nanofluid. Renewable Energy, 2020, 145: 2598–2614.
[30] Kumar B.N., Reddy K.S., Numerical investigations on metal foam inserted solar parabolic trough DSG absorber tube for mitigating thermal gradients and enhancing heat transfer. Applied Thermal Engineering, 2020, 178: 115511.
[31] Zhao Z., Bai F., Zhang X., Wang Z., Experimental study of pin finned receiver tubes for a parabolic trough solar air collector. Solar Energy, 2020, 207: 91–102.
[32] Gorjian S., Ebadi H., Calise F., Shukla A., Ingrao C., A review on recent advancements in performance enhancement techniques for low-temperature solar collectors. Energy Conversion and Management, 2020, 222: 113246.
[33] Manuel, D.T.A., Lourdes G.R., Comparison of solar technologies for driving a desalination system by means of an organic Rankine cycle. Desalination, 2007, 216: 276–291.
[34] Qiu Y., Li M.J., He Y.L., Tao W.Q., Thermal performance analysis of a parabolic trough solar collector using supercritical CO2 as heat transfer fluid under non-uniform solar flux. Applied Thermal Engineering, 2017, 115: 1255–1265.
[35] He Y.L., Xiao J., Cheng Z.D., Tao Y.B., A MCRT and FVM coupled simulation method for energy conversion process in parabolic trough solar collector. Renewable Energy, 2011, 36: 976–985.
[36] Qiu Y., Li M.J., Wang K., Liu Z.B., Xue X.D., Aiming strategy optimization for uniform flux distribution in the receiver of a linear Fresnel solar reflector using a multi-objective genetic algorithm. Applied Energy, 2017, 205: 1394–1407.
[37] Wang Y., Liu Q., Lei J., Jin H., Performance analysis of a parabolic trough solar collector with non-uniform solar flux conditions. International Journal of Heat and Mass Transfer, 2015, 82: 236–249.
[38] Sun J., Liu Q., Hong H., Numerical study of parabolic-trough direct steam generation loop in recirculation mode: Characteristics, performance and general operation strategy. Energy Conversion and Management, 2015, 96: 287–302.
[39] Qiu Y., He Y.L., Wu M., Zheng Z.J., A comprehensive model for optical and thermal characterization of a linear Fresnel solar reflector with a trapezoidal cavity receiver. Renewable Energy, 2016, 97: 129–144.
[40] Hachicha A.A., Rodríguez I., Capdevila R., Oliva A., Heat transfer analysis and numerical simulation of a parabolic trough solar collector. Applied Energy, 2013, 111: 581–592.
[41] Tao W.Q., Numerical Heat Transfer in Chinese, Beijing: Higher Education Press, 2001.
[42] Forristall R., Heat transfer analysis and modeling of a parabolic trough solar receiver implemented in engineering equation solver. National Renewable Energy Lab, Golden, CO. (United States), 2003.
[43] Kasperski J., Nemś M., Investigation of thermo-hydraulic performance of concentrated solar air-heater with internal multiple-fin array. Applied Thermal Engineering, 2013, 58: 411–419.
[44] Bellos E., Tzivanidis C., Antonopoulos K.A., A detailed working fluid investigation for solar parabolic trough collectors. Applied Thermal Engineering, 2017, 114: 374–386.
[45] Petela R., Exergy of undiluted thermal radiation. Solar Energy, 2003, 74: 469–488.
[46] Bellos E., Tzivanidis C., Enhancing the performance of a parabolic trough collector with combined thermal and optical techniques. Applied Thermal Engineering, 2020, 164: 114496.
[47] Bellos E., Tzivanidis C., Tsimpoukis D., Thermal enhancement of parabolic trough collector with internally finned absorbers. Solar Energy, 2017, 157: 514–531.
[48] Wang K., Zhang Z.D., Li M.J., Min C.H., A coupled optical-thermal-fluid-mechanical analysis of parabolic trough solar receivers using supercritical CO2 as heat transfer fluid. Applied Thermal Engineering, 2021, 183: 116154.
[49] SurfaceT S.M., Calculation of the concentrated flux density distribution in parabolic trough collectors by a semifinite formulation. Solar Energy, 1986, 37: 335–345.
[50] Dudley VE K.G., Mahoney AR, Test results: SEGS LS-2 solar collector. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States), 1994.
文章导航

/