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تأثیر سیاست بهره برداری، سطوح اعتمادپذیری و آستانه کمبود نیاز کشاورزی بر ظرفیت بهینه مخزن سد | ||
| تحقیقات آب و خاک ایران | ||
| مقاله 15، دوره 49، شماره 4، مهر و آبان 1397، صفحه 879-890 اصل مقاله (941.89 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/ijswr.2018.243226.667771 | ||
| نویسندگان | ||
| حسین شیبانی* 1؛ مجتبی شوریان2 | ||
| 1گروه منابع آب، دانشکده عمران، آب و محیط زیست، پردیس فنی عباسپور، دانشگاه شهید بهشتی، تهران، ایران | ||
| 2گروه منابع آب، دانشکده عمران آب و محیط زیست، پردیس فنی عباسپور، دانشگاه شهید بهشتی، تهران، ایران | ||
| چکیده | ||
| ظرفیت بهینه مخزن یک سد متأثر از دو فرض مهم است که در مرحله طراحی مدنظر قرار می‌گیرند. مورد اول سیاست بهره‌برداری منتخب است که به معنی نحوه رهاسازی جریان در زمان بهره‌برداری است. سیاست‌های متعارف بهره‌برداری از مخزن در مطالعات عمدتاً شامل سیاست بهره‌برداری استاندارد،S-type ،SQ-type و روش‌های برگرفته از این روش‌ها مانند GSQ-type و یا GSQD-type هستند. مورد دوم سطوح مفروض اعتمادپذیری و حد آستانه کمبود مجاز در تأمین نیازها هستند. در این مطالعه، تأثیر توأم سیاست بهره‌برداری منتخب، حدود اعتمادپذیری و آستانه کمبود بر روی ظرفیت بهینه مخزن سد ماربره در استان لرستان مورد بررسی قرار گرفته است. بدین منظور تعیین ظرفیت بهینه مخزن در چهار حالت، Free Policy، SOP، S-type و SQ-type با لحاظ توأم سطوح مختلف اعتمادپذیری و آستانه کمبود انجام گرفته است. نتایج به‌دست‌آمده نشان می‌دهد که ظرفیت بهینه مخزن سد به‌شدت متأثر از حدود اعتمادپذیری، آستانه کمبود و سیاست بهره‌برداری منتخب است. به‌نحوی‌که در مطالعه حاضر تغییر در اعتمادپذیری از 50 تا 100 درصد کمینه ظرفیت مخزن را برای حالت‌های مختلف سیاست بهره‌برداری و آستانه کمبود موردقبول مختلف، از 2/5 میلیون مترمکعب تا 3/248 میلیون مترمکعب تغییر می‌دهد. تأثیر عدم قطعیت پارامتر احتمالاتی جریان ورودی به مخزن سد نیز در مطالعه حاضر به روش ضمنی (استفاده از سری‌های آماری) لحاظ شده است. | ||
| کلیدواژه‌ها | ||
| بهینه‌سازی؛ ظرفیت مخزن؛ روش ضمنی؛ سیاست بهره‌برداری استاندارد | ||
| عنوان مقاله [English] | ||
| Effect of the Operation Policy, Reliability Level and Allowed Deficit Threshold for Water Supply in the Optimum Reservoir Capacity | ||
| نویسندگان [English] | ||
| hossein sheibani1؛ mojtaba shourian2 | ||
| 1department of civil, water and environment engineering, abbaspour college of engineering, shahid beheshti university, tehran, iran | ||
| 2department of water and environment engineering, abbaspour college of engineering, shahid beheshti, university, tehran. iran | ||
| چکیده [English] | ||
| The optimum capacity of a reservoir is affected by two important assumptions considered in the design phase. The first one is the selected operation policy which means releasing flow at the operation time. The common reservoir operation policies in researches, mainly include the Standard Operation Policy, S-Type, SQ-Type and the techniques based on them such as GSQ-Type, GSQD-Type. The second effective parameters are assumed reliability levels and the allowed deficit threshold for water supply. In this study, the simultaneous effect of the selected operation policy, the reliability range, and deficit threshold on the optimum reservoir capacity of Marbareh in Lorestan province was investigated. For this purpose, determination of the optimum reservoir capacity in 4 operation modes which was predetermined as operation without any preset policy (Free Policy), SOP and S-Type and SQ-Type linear operation strategies considering concurrent reliability levels and deficit thresholds was performed. The results show that the optimum reservoir capacity was severely influenced by reliability levels, deficit thresholds, and selected operation policy. So that, in this study the reliability change from 50% to 100% changes the minimum reservoir capacity for different modes of operation policies and the accepted deficit thresholds from 5.2 MCM to 248.3 MCM. The effect of the uncertainty of the stochastic parameter of the inflow into the reservoir is considered by implicit method (using statistical series). | ||
| کلیدواژه‌ها [English] | ||
| Optimization, Reservoir Capacity, Implicit Method, Standard Operation Policy | ||
| مراجع | ||
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