Effect of consumption and efficiency of irrigation networks on hydropower generation in Karun basin
محورهای موضوعی : water resource management
حمیدرضا ماجدی
1
()
حسین فتحیان
2
()
علیرضا نیکبخت شهبازی
3
()
نرگس ظهرابی
4
()
کلید واژه: Efficiency, شبکههای آبیاری, consumption, راندمان, irrigation networks, hydropower, مصارف, انرژی برقابی,
چکیده مقاله :
In this research, integrated modeling of Great Karun basin was carried out under multipurpose scenarios using six reservoir dams with a capacity of 10500 MW (Megawatt) to reduce the greenhouse gas productions. The simulation and development of the integrated WEAP model within a fifty-year period along with the development of the MODFLOW model in alluvial deposits that interact with the river allowed for the analysis of the integrated water resources management system of the Great Karun basin. Several scenarios were implemented following the calibration and validation of the linked integrated model. The components covered by these scenarios included the satisfaction of the in-basin and off-basin demands, the effect of the integrated consumption of water resources, and the effect of increased efficiency of irrigation networks with maximum clean hydroelectricity production and minimum aquifer level decline under drought-induced water shortage conditions. The second scenario, which generates 15282 GWh (Gigawatt-Hour) of power, not only optimally needs the future and environmental demands as the best operating scenario but also minimizes the emission of the greenhouse gases in the basin
در این پژوهش مدلسازی تلفیقی حوزه کارون بزرگ با ظرفیت نیروگاهی ۱۰۵۰۰ مگاوات با سناریوهای چندمنظوره در راستای شبیهسازی تخصیص منابع و هیدروانرژی و کاهش تولید گاز گلخانهای مورد توجه قرار گرفت. شبیهسازی و توسعه مدل یکپارچه WEAP در یک بازه زمانه پنجاه ساله در کنار توسعه مدل MODFLOW در پهنههای آبرفتی که با رودخانه دارای اندرکنش میباشند امکان بررسی سیستم یکپارچه منابع آب حوضه را میسر نمود. پس از واسنجی و صحتسنجی مدل تلفیقی لینک شده ، چندین سناریو اجرا گردید. مولفههای تحت پوشش این سناریوها شامل تامین مصارف داخلی و خارجی حوضه، اثر استفاده تلفیقی منابع آب، اثر افزایش راندمان شبکههای آبیاری در شرایط حداکثر کردن تولید انرژی پاک برقابی و حداقل کردن افت آبخوان در شرایط کم آبی ناشی از خشکسالی بود. در این راستا سناریو دوم با تولید میزان 15282 گیگاوات ساعت انرژی ضمن تامین بهینه نیاز آینده و نیاز زیستمحیطی به عنوان سناریو برتر بهرهبرداری، حداقل انتشار گاز گلخانهای در حوضه را به دنبال خواهد داشت.
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