| تعداد نشریات | 286 |
| تعداد نشریات سازمان | 84 |
| تعداد شماره‌ها | 2,846 |
| تعداد مقالات | 32,300 |
| تعداد مشاهده مقاله | 41,386,931 |
| تعداد دریافت فایل اصل مقاله | 18,562,131 |
مطالعه تأثیر رطوبت خاک اطراف لولۀ مبدل حرارتی هوا-زمینی بر شاخصهای عملکردی آن | ||
| تحقیقات سامانه‌ها و مکانیزاسیون کشاورزی | ||
| دوره 24، شماره 87، تیر 1402، صفحه 91-104 اصل مقاله (1.46 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/amsr.2024.366145.1491 | ||
| نویسندگان | ||
| ابوالفضل هدایتی پور1؛ محسن سلیمانی* 2؛ مصطفی کیانی ده کیانی2 | ||
| 1دانشجوی دکتری گروه مهندسی بیوسیستم، دانشگاه شهید چمران اهواز، اهواز، ایران | ||
| 2دانشیار گروه مهندسی بیوسیستم، دانشگاه شهید چمران اهواز، اهواز، ایران | ||
| چکیده | ||
| به منظور بررسی تأثیر رطوبت خاک و طول لولۀ انتقال هوا بر شاخصهای عملکردی یک سامانه زمینگرمایی، دو آزمایش به صورت فاکتوریل در مرداد و شهریور 1401 بر پایۀ طرح بلوکهای کامل تصادفی و در سه تکرار در یک گلخانۀ مجهز به سامانه زمین گرمایی در شهر اراک اجرا شد. دو رطوبت خاک 10 و 25 درصد (a1 و a2) به عنوان فاکتور اول و سه طول لوله 17، 34 و 51 متر (b1، b2 و b3)، به عنوان فاکتور دوم در نظر گرفته شد. توسط یک فن جریان هوا داخل دو لوله PVC به قطر 200 میلیمتر، در عمق سه متری زمین، به چرخش درمیآمد. برای مرطوب کردن خاک اطراف لوله، از یک نوار آبیاری به قطر 16 میلیمتر استفاده شد. نتایج آزمایش نشان داد که با افزایش رطوبت خاک از 10 به 25 درصد، دمای هوای خروجی سامانه از 5/25 به 5/23 درجة سلسیوس کاهش مییابد. متوسط راندمان در دو رطوبت 25 و 10 درصد به ترتیب 82/0 و 69/ بود. توان سرمایشی تولید شده در دو سطح رطوبت مورد مطالعه خاک، به ترتیب 7/2 و 2/2 کیلووات بود. بهترین تیمار از نظر شاخصهای عملکردی، تیمار با طول لولۀ 34 متر و رطوبت 25 درصد بود. دمای هوای خروجی، راندمان، توان سرمایشی و ضریب عملکرد سامانه در این حالت به ترتیب 7/23 درجة سلسیوس، 90/0، 8/2 کیلووات و 7/3 بود. | ||
| کلیدواژه‌ها | ||
| انرژی تجدیدپذیر؛ انرژی زمین گرمایی؛ سرمایش؛ گلخانه | ||
| عنوان مقاله [English] | ||
| Investigating the effect of Soil Moisture Around the Pipe in an Earth–Air Heat Exchanger (EAHE) System on its Performance Indicators | ||
| نویسندگان [English] | ||
| Abolfazl Hedayatipour1؛ Mohsen Soleymani2؛ Mostafa Kiani Deh-Kiani2 | ||
| 1Ph.D. student, Department of Biosystems Engineering, Shahid Chamran University of Ahvaz, | ||
| 2Department of Biosystems Engineering, Shahid Chamran University of Ahvaz | ||
| چکیده [English] | ||
| In order to investigate the effect of soil moisture and air transfer tube lenth on the performance indicators of a geothermal system, two factorial experiments were conducted based on a complete randomized block design in three replications in a greenhouse equipped with Earth–Air Heat Exchanger(EAHE)system located in the city of Arak in early August and September 2022. Two soil moisture levels, a1=10% and a2=25%, were considered as the first factor and three pipe lengths of b1=17, b2=34, and b3=51 m, were considered as the second factor in both experiments. The air was circulated by a fan through two PVC pipes with a diameter of 200 mm, which were buried at three meters deep from the ground surface. An irrigation tape with a diameter of 16 mm was used to increase the soil moisture around the pipe. The results showed that with the increase of soil moisture from 10% to 25%, the temperature of the outlet air decreases from 25.5°C to 23.5°C. The average efficiency at soil moistures of 25% and 10%, was 0.82 and 0.69 respectively. The produced cooling power was 2.7 kW and 2.2 kW, at two levels of soil moisture respectively. The best treatment from the point of performance indicators was obtained with a tube length of 34 meters and soil moisture of 25%. The outlet air temperature, system efficiency , cooling power and coefficient of performance for this treatment were 23.7°C, 0.90, 2.8 kW and 3.7 respectively. | ||
| کلیدواژه‌ها [English] | ||
| Renewable energy, Geothermal Energy, Cooling, Greenhouse | ||
| مراجع | ||
|
Agrawal, K. K., Misra, R., & Agrawal, G. D. (2020). Experimental study to investigate the effect of backfilling materials on thermal performance of ground air heat exchanger system. Journal of Thermal Science and Engineering Applications, 12(2), https://doi.org/10.1115/1.4044176. Alam, M. R., Zain, M. F. M., Kaish, A. B. M. A., & Jamil, M. (2015). Underground soil and thermal conductivity materials based heat reduction for energy-efficient building in tropical environment. Indoor and Built Environment, 24(2), 185-200. https://doi.org/10.1177/1420326X13507591. Belatrache, D., Bentouba, S., & Bourouis, M. (2017). Numerical analysis of earth air heat exchangers at operating conditions in arid climates. International Journal of Hydrogen Energy, 42(13), 8898-8904. https://doi.org/10.1016/j.ijhydene.2016.08.221. Ben Jmaa Derbel, H., & Kanoun, O. (2010). Investigation of the ground thermal potential in tunisia focused towards heating and cooling applications. Applied Thermal Engineering, 30(10), 1091-1100. https://doi.org/10.1016/j.applthermaleng.2010.01.022. Bisoniya, T. S., Kumar, A., & Baredar, P. (2013). Experimental and analytical studies of earth-air heat exchanger (EAHE) systems in India: A review. Renewable and Sustainable Energy Reviews, 19, 238-246. https://doi.org/10.1016/j.rser.2012.11.023. Burton-Johnson, A., Dziadek, R., & Martin, C. (2020). Review article: Geothermal heat flow in Antarctica: Current and future directions. Cryosphere, 14(11), 3843-3873. https://doi.org/10.5194/tc-14-3843-2020. Cuny, M., Lapertot, A., Lin, J., Kadoch, B., & Le Metayer, O. (2020). Multi-criteria optimization of an earth-air heat exchanger for different French climates. Renewable Energy, 157, 342-352. https://doi.org/10.1016/j.renene.2020.04.115. Darius, D., Misaran, M. S., Rahman, M. M., Ismail, M. A., & Amaludin, A. (2017). Working parameters affecting earth-air heat exchanger (EAHE) system performance for passive cooling: A review. IOP Conference Series: Materials Science and Engineering, 217(1). https://doi.org/10.1088/1757-899X/217/1/012021. Faridi, H., Arabhosseini, A., Zarei, G., & Okos, M. (2019). Utilization of soil temperature modeling to check the possibility of earth-air heat exchanger for agricultural building. Iranica Journal of Energy & Environment, 10(4), 260-268. https://doi.org/10.5829/ijee.2019.10.04.06. Faridi, H., Arabhosseini, A., Zarei, G., & Okos, M. (2021). Degree-day index for estimating the thermal requirements of a greenhouse equipped with an air-earth heat exchanger system. Journal of Agricultural Machinery, 11(1), 83-95. https://doi doi.org/10.22067/jam.v11i1.86233. (in Persian) Hacini, K., Benatiallah, A., Harrouz, A., & Belatrache, D. (2021). Efficiency assessment of an earth-air heat exchanger system for passive cooling in three different regions - the Algerian case. FME Transactions, 49(4), 1035–1046. https://doi.org/10.5937/FME2104035H. Hamdhan, I. N., & Clarke, B. G. (2010). Determination of thermal conductivity of coarse and fine sand soils. In Proceedings of the World Geothermal Congress. April 25-29, Bali, Indonesia. Kaddour, A., Attia, M. E. H., Arici, M., Benbelgacem, K., & Driss, Z. (2022). A numerical evaluation on the utilization of Earth to Air Heat Exchangers in arid regions Algeria. Journal of Thermal Engineering, 8(4), 505-514. https://doi.org/10.18186/thermal.1150003. Li, H., Ni, L., Yao, Y., & Sun, C. (2019). Experimental investigation on the cooling performance of an Earth to Air Heat Exchanger (EAHE) equipped with an irrigation system to adjust soil moisture. Energy and Buildings, 196, 280-292. https://doi.org/10.1016/J.ENBUILD.2019.05.007. Lin, J., Nowamooz, H., Braymand, S., Wolff, P., & Fond, C. (2020). Impact of soil moisture on the long-term energy performance of an earth-air heat exchanger system. Renewable Energy, 147, 2676-2687. https://doi.org/10.1016/j.renene.2018.06.106. Liu, Z., Yu, Z. J., Yang, T., Li, S., Mankibi, M. E., Roccamena, L., & Zhang, G. (2019). Designing and evaluating a new earth-to-air heat exchanger system in hot summer and cold winter areas. Energy Procedia, 158, 6087-6092. https://doi.org/10.1016/j.egypro.2019.01.506. Maoz, A. S., Muhammad, N., Amin, A., Sohaib, M., Basit, A., & Ahmad, T. (2019). Parametric optimization of Earth to Air Heat Exchanger using Response Surface Method. Sustainability (Switzerland), 11(11). https://doi.org/10.3390/su11113186. Morshed, W., Leso, L., Conti, L., Rossi, G., Simonini, S., & Barbari, M. (2018). Cooling performance of earth-to-air heat exchangers applied to a poultry barn in semi-desert areas of south Iraq. International Journal of Agricultural and Biological Engineering, 11(3), 47-53. https://doi.org/10.25165/j.ijabe.20181103.3047. Mukhtar, A., Yusoff, M. Z., & Ching, N. K. (2017). An empirical estimation of underground thermal performance for Malaysian climate. Journal of Physics: Conference Series, 949, 4th International Conference on Mathematical Applications in Engineering (ICMAE'17), Aug. 8-9, International Islamic University Malaysia, Kuala Lumpur, Malaysia. https://doi.org/10.1088/1742-6596/949/1/012011. Omer, A. (2018). Soil thermal properties: Effects of density, moisture, salt concentration and organic matter. In A. Kallel (Ed.), Advances in science, technology and innovation. Springer International Publishing AG 2018. https://doi.org/10.1007/978-3-319-70548-4_39. Sakhri, N., Menni, Y., & Chamkha, A. J. (2022). Heating capacity of an earth to air heat exchanger in arid regions-experimental investigation. Journal of Applied and Computational Mechanics, 8(2), 429-437. https:// 10.22055/JACM.2020.31237.1843. Shingala, N. R., & Patel, C. M. (2022). Mathematical Analysis of Earth Air Heat Exchanger (EAHE) for Storage system. Proceedings of the 4th International Conference on Sustainable Engineering and Technology. Oct. 5-6. Peshawar, Pakistan. Singh, R., Sawhney, R. L., Lazarus, I. J., & Kishore, V. V. N. (2018). Recent advancements in Earth Air Tunnel Heat Exchanger (EATHE) system for indoor thermal comfort application: A review. Renewable and Sustainable Energy Reviews, 82(May), 2162-2185. https://doi.org/10.1016/j.rser.2017.08.058. Singh, B., Asati, A. K., & Kumar, R. (2021). Evaluation of the cooling potential of earth air heat exchanger using concrete pipes. International Journal of Thermophysics, 42(2), 19. https://doi.org/10.1007/s10765-020-02774-w. Zhao, Y., Li, R., Ji, C., Huan, C., & Zhang, B. (2019). Parametric study and design of an earth-air heat exchanger using model experiment for memorial heating and cooling. Applied Thermal Engineering, 148, 838-845. https://doi.org/10.1016/j.applthermaleng.2018.11.018. | ||
|
آمار تعداد مشاهده مقاله: 136 تعداد دریافت فایل اصل مقاله: 86 |
||