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بررسی پارامترهای تأثیرگذار بر عملکرد توربین‌های بادی محور عمودی به صورت تجربی | ||
| نشریه مهندسی مکانیک امیرکبیر | ||
| مقاله 1، دوره 53، شماره 5، مرداد 1400، صفحه 2771-2790 اصل مقاله (2.1 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22060/mej.2020.17414.6590 | ||
| نویسندگان | ||
| نیما ابوفاضلی1؛ پویان هاشمی طاری* 2؛ رقیه گوگ‌ساز قوچانی3؛ مجید زندی2 | ||
| 1مهندسی مکانیک تبدیل انرژی، دانشکده مهندسی مکانیک و انرژی، دانشگاه شهید بهشتی، تهران، ایران | ||
| 2دانشکده مهندسی مکانیک و انرژی، دانشگاه شهید بهشتی، تهران، ایران | ||
| 3دکتری برق، دانشکده مهندسی مکانیک و انرژی، دانشگاه شهید بهشتی، تهران، ایران | ||
| چکیده | ||
| از مباحث چالش‌بر‌انگیز در بهره‌گیری از انرژی بادی، استفاده از توربین‌های بادی در مناطق شهری است. با توجه به ساختار این مناطق، معمولا توربین‌های بادی محور عمودی (داریوس-ساوینیوس) که مستقل از جهت باد عمل می‌کنند استفاده شود. همچنین با توجه به محدودیت فضای مناطق شهری بررسی پارامترهای توربین‌ها در ابعاد مایکرو امری مهم و اجتناب‌ناپذیر به‌نظر می‌رسد. هدف این پژوهش بررسی این توربین‌ها، پارامترهای تأثیرگذار و بهبود عملکرد آن‌ها است. به‌منظور روش انجام پژوهش دو توربین ساوینیوس و داریوس در ابعاد مایکرو طراحی و ساخته شده‌اند و عملکرد آیرودینامیکی آن‌ها با بدست آوردن نمودار ضریب توان بر حسب نسبت‌سرعت‌نوک‌پره مورد مطالعه قرار گرفته است. تأثیر سرعت باد بر توربین ساوینیوس به صورت تجربی بررسی شده است. نتایج نشان می‌دهد که این توربین در سرعت‌های باد پایین عملکرد بهتری دارد. بخشی از خلاقیت و نوآوری این پژوهش ساخت توربین داریوسی بوده که امکان تغییر برخی پارامترهای تأثیرگذار را داشته باشد. این طراحی باعث کاهش هزینه‌ها است. دو پارامتر نسبت ابعاد و جایگاه بازوی نگه‌دارنده پره‌ها در توربین داریوس به صورت تجربی مورد بررسی قرار گرفته است. با توجه به نتایج آزمایش‌ها بهترین جایگاه بازوی نگه‌دارنده پره‌ها، ابتدا و انتهای پره است و توربین با نسبت ابعاد یک بهترین عملکرد را دارد. | ||
| کلیدواژه‌ها | ||
| انرژی تجدیدپذیر؛ توربین بادی عمودمحور؛ ساوینیوس؛ داریوس؛ ضریب توان | ||
| عنوان مقاله [English] | ||
| Experimental study on effective parameters on vertical axis wind turbine performance | ||
| نویسندگان [English] | ||
| Nima Aboufazeli1؛ Pooyan Hashemi Tari2؛ Roghayeh Gavagsaz-ghoachani3؛ Majid Zandi2 | ||
| 1Department of Mechanical and Energy Engineering, Shahid Beheshti University, Tehran, Iran. | ||
| 2Department of Mechanical and Energy Engineering, Shahid Beheshti University, Tehran, Iran | ||
| 3Department of Mechanical and Energy Engineering, Shahid Beheshti University,Tehran, Iran, | ||
| چکیده [English] | ||
| Concerns about the usage of fossil fuels have led to more attention to renewable energies such as wind energy. Utilization of wind turbines in the urban industry is one of the challenging topics in wind energy area. Particularly, due to the limitations of the wind conditions in the urban areas (i.e. low speed wind, high level of variation of wind direction and high turbulence level) and the space limitations within the cities, utilization of vertical axis wind turbines in micro scales have become of interest. The focus of the present study is on these types of turbines and assessing the parameters affecting their aerodynamic performances. Two types of vertical axis wind turbines (Savonius and a straight blade Darrieus) were designed and constructed in micro-scale. The effect of wind speed on the Savonius turbine is experimentally studied. Results show that this turbine performs better at lower wind speeds. The effect of the aspect ratio and the vertical position of the blade struts on the performance of the Darrieus turbine is also experimentally assessed. The results show that the best vertical position for struts is the tip of the blades. It was also experimentally observed that the turbine with aspect ratio one has the best aerodynamic performance. | ||
| کلیدواژه‌ها [English] | ||
| Micro wind turbines, Vertical axis wind turbine, Savonius, Darrieus, Power coefficient | ||
| مراجع | ||
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