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فصلنامه علمی کارافن

تحلیل عملکرد تجربی متمرکزکننده خورشیدی سهموی آزمایشگاهی همراه با حفره جاذب و لوله‌های جاذب چندگانه تحت شرایط محیطی ثابت

نوع مقاله : مقاله پژوهشی (کاربردی)

نویسندگان
فرشید بهرو 1
امیرحسین عدالت پور 1
سید مصطفی حسینعلی پور 1
فاطمه دباغ کاشانی 2
مهدی مقیمی 3
1 آزمایشگاه انرژی، آب و محیط زیست، دانشکده مهندسی مکانیک، دانشگاه علم و صنعت ایران، تهران
2 دانشکده فیزیک، دانشگاه علم و صنعت ایران، تهران
3 گروه تبدیل انرژی، دانشکده مهندسی مکانیک، دانشگاه علم و صنعت ایران، تهران
10.48301/kssa.2026.535937.3260
چکیده
این پژوهش به بررسی بهبود تجربی عملکرد یک متمرکزکننده خورشیدی سهموی با استفاده از حفره‌های جاذب، نانوسیال و افزایش تعداد لوله‌های جاذب پرداخته است. برای این منظور، نمونه‌ای از این متمرکزکننده با ابعاد آزمایشگاهی طراحی و ساخته شد که در آن از سه لوله‌ی جاذب مسی که در آن‌ها نانوسیال سیلیکن دی‌اکسید جریان دارد، و دو حفره‌ی جاذب شامل ورق‌های فولاد ضدزنگ استفاده شده است. در این مطالعه نانوسیال در 3 غلظت حجمی 1/0، 5/0 و 1 درصد استفاده شده است. آزمایش‌ها در محیط آزمایشگاهی با شدت تابشW/m2 900، دمای ورودی و دمای محیط °C 26 و دبیm3/h 24/0 در بازه زمانی 60 دقیقه انجام شده‌اند. برای تمام حالت‌ها مقدار دمای خروجی، حرارت مفید و بازده حرارتی گزارش شده است. طبق مشاهدات، دمای خروجی نهایی در حالت پایه (تنها با یک لوله‌ی جاذب و بدون استفاده از حفره جاذب) °C8/41، حرارت مفیدW 18/29 و بازده حرارتی 02/36 درصد گزارش شده است. استفاده همزمان از سه لوله‌ی جاذب و حفره‌ی جاذب باعث افزایش قابل توجه دمای خروجی و به تبع آن حرارت مفید شده است به طوریکه مقدار آن‌ها در این حالت به ترتیب برابر با°C 3/57 و W81/56 حاصل شده است. بازده حرارتی در این حالت برابر با 14/70 درصد حاصل شده است. همچنین مشخص گردید که نسبت به آب، نانوسیال انتخاب‌شده بهبود محسوسی در عملکرد حرارتی ایجاد نمی‌کند. از نتایج این پژوهش می‌توان برای ساخت متمرکزکننده در ابعاد صنعتی بهره برد و بازده حرارتی آن‌ها را افزایش داد.
کلیدواژه‌ها
متمرکزکننده خورشیدی سهموی
حفره جاذب
لوله جاذب
انرژی خورشیدی
عملکرد حرارتی
موضوعات

عنوان مقاله English

Experimental Performance Analysis of a Laboratory-Scale Parabolic Trough Solar Collector with Absorber Cavity and Multiple Absorber Tubes under Controlled Environmental Conditions

نویسندگان English

Farshid Behrou 1
Amirhossein Edalatpour 1
Seyed Mostafa Hosseinalipour 1
Fatemeh Dabbagh Kashani 2
Mahdi Moghimi 3
1 Energy, Water and Environment Research Lab, School of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran
2 Department of Physics, Iran University of Science and Technology, Tehran, Iran
3 Department of Energy Conversion, School of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran
چکیده English

This study investigates the performance enhancement of a parabolic trough solar collector (PTSC) through the use of absorber cavities, nanofluids, and increasing the number of absorber tubes. To this end, a laboratory-scale collector was designed and fabricated, featuring three copper absorber tubes, two mirror-finished stainless steel absorber cavities, and a silicon dioxide (SiO₂) nanofluid at three volume concentrations: 0.1%, 0.5%, and 1%. The experiments were conducted under laboratory conditions with a solar irradiance of 900 W/m², inlet and ambient temperatures of 26°C, and a flow rate of 0.24 m³/h over a period of 60 minutes. For all test scenarios, the outlet temperature, useful heat gain, and thermal efficiency were recorded. The results showed that in the baseline configuration — with a single absorber tube and no cavity — the outlet temperature reached 41.8°C, the useful heat gain was 29.18 W, and the thermal efficiency was 36.02%. The simultaneous use of three absorber tubes and an absorber cavity significantly improved the outlet temperature and useful heat gain, reaching 57.3°C and 56.81 W, respectively, with a corresponding thermal efficiency of 70.14%. Furthermore, it was observed that the selected nanofluid had a negligible effect on the thermal performance of the system. The findings of this study can be utilized in the design of efficient large-scale industrial collectors to achieve enhanced thermal efficiency.

کلیدواژه‌ها English

Parabolic Trough Solar Collector
Absorber Cavity
Absorber Tube
Solar Energy
Thermal Performance
[1] Mahian, O., Bellos, E., Markides, C. N., Taylor, R. A., Alagumalai, A., Yang, L., Qin, C., Lee, B. J., Ahmadi, G., Safaei, M. R., & Wongwises, S. (2021). Recent advances in using nanofluids in renewable energy systems and the environmental implications of their uptake. Nano Energy 86, 106069. https://doi.org/10.1016/j.nanoen.2021.106069
[2] Kim, H., Chinnasamy, V., Ham, J., & Cho, H. (2025). Parabolic trough collectors: A comprehensive review of design innovations, optimization studies and applications. Energy Conversion and Management, 327, 119534. https://doi.org/10.1016/j.enconman.2025.119534
[3] Khadhar Basha, S., & Behura, A. K. (2024). Energy Sources, Part A: Recovery, Utilization, and Environmental Effects Thermal performance of parabolic trough solar collector employing novel absorber tubes equipped with distinct heat transfer fluids: An experimental study, 46 (1), 16675-16701. https://doi.org/10.1080/15567036.2024.2430416
[4] AbdEl-Rady Abu-Zeid, M., Elhenawy, Y., Bassyouni, M., Majozi, T., Toderas, M., Al-Qabandi, O. A., & Kishk, S. S. (2024). Performance enhancement of flat-plate and parabolic trough solar collector using nanofluid for water heating application. Results in Engineering, 21, 101673. https://doi.org/10.1016/j.rineng.2023.101673
[5] Hebbal, U., Soragaon, B., Rathnakar, G., Mohan Das, A. N., Thippeswamy, L. R., Nagabhushana, N., Durga Prasad, C., & Aden, A. A. (2025). Principal difficulties with parabolic trough collector systems and performance-boosting strategies: A comprehensive review. International Journal of Thermofluids, 25, 101009. https://doi.org/10.1016/j.ijft.2024.101009
[6] Kamali, K., Saleh, M., Jahromi, B., & Sefid, M. (2022). Energy and Exergy Analysis of a Direct Solar Steam Power Plant with Solar Parabolic Concentrator for Yazd City with Several Water Preheaters. Karafan Quarterly Research Journal, 19(1), 333–355. https://doi.org/10.48301/kssa.2021.287183.1540 (In Persian)
[7] Anand, S., & Kumar, S. (2024). Optimization of gaseous working fluid and internally finned absorber tube for enhancing the thermal performance of parabolic trough solar collector. Applied Thermal Engineering, 239, 122078. https://doi.org/10.1016/j.applthermaleng.2023.122078
[8] Babaeiespooei, R., & Naseri, R. (2022). Numerical Study of Nanofluid Flow and Heat Transfer Characteristics in Linear Parabolic Trough Solar Collector. Karafan Quarterly Research Journal, 19(1), 311–332. (In Persian) https://doi.org/10.48301/KSSA.2021.299497.1670
[9] Ahmadi, M. (2024). Investigation of the Effects of Hybrid Nanofluids Containing Graphene on the Hydrothermal Performance of a Solar Linear Parabolic Collector. Karafan Quarterly Research Journal, 21(1), 297–319. (In Persian) https://doi.org/10.48301/KSSA.2024.423031.2750
[10] Bocanegra, J. A., Marchitto, A., & Misale, M. (2024). Nanofluids in solar collectors: a comprehensive review focused on its sedimentation. Clean Technologies and Environmental Policy, 27, 1753-1784. https://doi.org/10.1007/s10098-024-02964-2
[11] Talugeri, V., Pattana, N. B., Nasi, V. B., Shahapurkar, K., Soudagar, M. E. M., Ahamad, T., Kalam, M. A., Chidanandamurthy, K. M., Mubarak, N. M., & Karri, R. R. (2023). Experimental investigation on a solar parabolic collector using water-based multi-walled carbon-nanotube with low volume concentrations. Scientific Reports, 13(1). https://doi.org/10.1038/s41598-023-34529-6
[12] Mohanavel, V., Logesh, K., Venkatesh, R., Singh, P. K., Hossain, I., Soudagar, M. E. M., Obaid, S. Al, Alharbi, S. A., & Ramachandaramurthy, V. K. (2025). Ferric oxide nanofluid on functional properties of parabolic trough solar collector under different flow rate. Applied Thermal Engineering, 265, 125608. https://doi.org/10.1016/j.applthermaleng.2025.125608
[13] Kumar, A. (2025). Comparative investigations on thermal performance assessment of a linear parabolic trough solar collector using various nanofluids and incident angles. Energy, 317, 134707. https://doi.org/10.1016/j.energy.2025.134707
[14] Sreekumar, S., Shaji, J., Cherian, G., Thomas, S., Deb Mondol, J., & Shah, N. (2024). Corrosion analysis and performance investigation of hybrid MXene/C-dot Nanofluid-Based direct absorption solar collector. Solar Energy, 269, 112317. https://doi.org/10.1016/j.solener.2024.112317
[15] Heyhat, M. M., Valizade, M., Abdolahzade, S., & Maerefat, M. (2020). Thermal efficiency enhancement of direct absorption parabolic trough solar collector (DAPTSC) by using nanofluid and metal foam. Energy, 192, 116662. https://doi.org/10.1016/j.energy.2019.116662
[16] Edalatpour, A., Shahdad, I., Hosseinalipour, S. M., & Moghimi, M. (2024). Energy and Exergy Analysis of a Direct Absorption Parabolic Solar Collector Enhanced with Multi-Walled Carbon Nanotubes and Titanium Dioxide Nanoparticles. Modares Mechanical Engineering, 24(6), 385–397. (In Persian) https://doi.org/10.48311/MME.24.6.385
[17] Hamada, M. A., Abdo, M. R., Khalil, H., Al-Sood, M. M. A., & Sharshir, S. W. (2025). Investigating the performance of solar parabolic concentrator using helical tubes, nanoparticles, and thermal storage materials. Process Safety and Environmental Protection, 195, 106777. https://doi.org/10.1016/j.psep.2025.106777
[18] Al-Shiblawi, A. I., & Heyhat, M. M. (2025). Modifying the Surface of Twisted Tapes With a Hydrophobic Coating to Enhance Their Performance in Parabolic Trough Solar Collector. International Journal of Energy Research, 2025(1), 695752. https://doi.org/10.1155/er/7695752
[19] Hou, G., Yadav, A., Ali, E., Naeem, Y. A., Ahmed, F. F., Muzammil, K., Falih, K. T., Abdulridui, H. A., Kadhum, E. H., Omran, A. A., & Elawady, A. (2024). Thermal performance improvement for parabolic trough solar collectors integrated with twisted fin and nanofluid: Modeling and validation. Case Studies in Thermal Engineering, 60, 104763. https://doi.org/10.1016/j.csite.2024.104763
[20] Baiju, V., Shajan, S., Krishna, R. K., & Sha, A. A. (2024). Experimental investigations of secondary reflector enhanced medium temperature parabolic trough solar thermal collector. Journal of Thermal Analysis and Calorimetry, 149, 12823-12841. https://doi.org/10.1007/s10973-024-13672-w
[21] Hu, T., Zhang, H., Kwan, T. H., Wang, Q., & Pei, G. (2024). Thermal performance analysis of eccentric double-selective-coated parabolic trough receivers with flat upper surface. Renewable Energy, 220, 119613. https://doi.org/10.1016/j.renene.2023.119613
[22] Naveenkumar, R., Singh, P. K., Ravichandran, M., Mohanavel, V., Venkateshkumar, R., Kedia, A., Kannan, S., & Soudagar, M. E. M. (2025). Thermal performance analysis of a parabolic trough collector based solar water heater using revolving absorber tube. Results in Engineering, 25, 104270. https://doi.org/10.1016/j.rineng.2025.104270
[23] Norouzi, A. M., Siavashi, M., Ahmadi, R., & Tahmasbi, M. (2021). Experimental study of a parabolic trough solar collector with rotating absorber tube. Renewable Energy, 168, 734–749. https://doi.org/10.1016/j.renene.2020.12.088
[24] Sallaberry, F., Valenzuela, L., & Palacin, L. G. (2017). On-site parabolic-trough collector testing in solar thermal power plants: Experimental validation of a new approach developed for the IEC 62862-3-2 standard. Solar Energy, 155, 398–409. https://doi.org/10.1016/j.solener.2017.06.045
[25] Valizade, M., Heyhat, M. M., & Maerefat, M. (2020). Experimental study of the thermal behavior of direct absorption parabolic trough collector by applying copper metal foam as volumetric solar absorption. Renewable Energy, 145, 261–269. https://doi.org/10.1016/j.renene.2019.05.112
[26] Kasaeian, A., Daviran, S., Azarian, R. D., & Rashidi, A. (2015). Performance evaluation and nanofluid using capability study of a solar parabolic trough collector. Energy Conversion and Management, 89, 368–375. https://doi.org/10.1016/j.enconman.2014.09.056
[27] Boroujeni, B. A., & Farsani, A. K. (2024). Numerical Simulation of Laminar Nanofluids Flow in a Curved Duct with a Square Cross-section. Karafan Quarterly Research Journal, 21(1), 411–433. https://doi.org/10.48301/KSSA.2024.427698.2775
[28] Żyła, G., & Fal, J. (2017). Viscosity, thermal and electrical conductivity of silicon dioxide–ethylene glycol transparent nanofluids: An experimental studies. Thermochimica Acta, 650, 106–113. https://doi.org/10.1016/j.tca.2017.02.001
[29] Rajendra Prasad, T., Rama Krishna, K., Sharma, K. V., & Naga Bhaskar, C. (2022). Thermal performance of stable SiO2 nanofluids and regression correlations to estimate their thermophysical properties. Journal of the Indian Chemical Society, 99(6), 100461. https://doi.org/10.1016/j.jics.2022.100461
[30] ISO. (2018). Guide to Standard ISO 9806;2017 (2nd Ed). https://doi.org/10.13140/RG.2.2.27725.08168
[31] Ram, S., Ganesan, H., Saini, V., & Kumar, A. (2023). Performance assessment of a parabolic trough solar collector using nanofluid and water based on direct absorption. Renewable Energy, 214, 11–22. https://doi.org/10.1016/j.renene.2023.06.016
[32] Moffat, R. J. (1985). Using Uncertainty Analysis in the Planning of an Experiment. Journal of Fluids Engineering, 107(2), 173–178. https://doi.org/10.1115/1.3242452
[33] Edalatpour, A., Hosseinalipour, S. M., & Moghimi, M. (2025). An experimental analysis of the performance of direct absorption parabolic trough collectors with laser-processed copper surfaces. Scientific Reports, 15(1), 8921. https://doi.org/10.1038/s41598-025-92689-z
[34] Mousavi, S. V. (2024). Numerical Study of Flow and Heat Transfer of Magnetic Nanofluid in a Tee Channel in the Presence of Variable Magnetic Field. Quarterly Scientific Journal of Technical and Vocational University Spring 2024, 21(1), 453–481. https://doi.org/10.48301/KSSA.2024.413755.2683
فصلنامه علمی کارافن
دوره 23، شماره 1
فنی و مهندسی
بهار 1405
صفحه 118-142

  • تاریخ دریافت 07 مرداد 1404
  • تاریخ بازنگری 30 مهر 1404
  • تاریخ پذیرش 27 بهمن 1404