توسعه روش ارزیابی پایداری شبکه آب شهری با نوآفرینی شاخص نقطه‌ای پایداری- مطالعه موردی آبیک

نوع مقاله : مقاله پژوهشی

نویسندگان
داراب بیرانوندی 1
حسین حسن پور درویشی 2
حسین ابراهیمی 2
1 دانشجوی دکترای منابع آب، دانشکده فنی و مهندسی، گروه مهندسی آب، دانشگاه آزاد اسلامی واحد شهر قدس، تهران، ایران.
2 دانشیار، دانشکده فنی و مهندسی، گروه مهندسی آب، دانشگاه آزاد اسلامی واحد شهر قدس، تهران، ایران.
10.22034/usd.2024.2017016.1165
چکیده
طراحی برنامه‌های بازسازی و توسعه شبکه‌های آب قبل از هر گونه اقدام اجرایی به منظور جلوگیری از اتلاف هزینه‌ها، نیازمند شبیه سازی تأثیر گزینه‌های اجرایی بر عملکرد شبکه است. همچنین ارزیابی عملکرد شبکه در دوره‌های زمانی (روزانه، ماهیانه، فصلی و سالیانه) به منظور تعیین پایداری کلی شبکه برای و یا مقایسه عملکرد شبکه‌های همگون نیز انجام می‌شود. در عین حال توجه به ارزیابی کارآیی موضعی و نقطه‌ای شبکه و ارتباط آن با مؤلفه‌های شاخص پایداری، ضروری می نماید؛ بنابراین ای پژوهش برای انجام سازوکار حصول به شاخص نقطه‌ای بعنوان یک راهکار نوین برای نشان دادن اثرات تغییرات بر روی نقاط مصرف، طراحی انجام شد. در گام اجرایی شبیه سازی هیدرولیکی شبکه واقعی توزیع آب در آبیک قزوین، برای استخراج داده لازم، انجام شد شد. سپس شاخص‌های نقطه‌ای تاب آوری، آسیب پذیری و قابلیت اطمینان، استخراج و سپس شاخص های نقطه ای و کل پایداری شبکه در سه حالت کمینه، متوسط و بیشینه مصرف مورد ارزیابی قرار گرفتند. نتایج نشان داد که در حالت بیشینه مصرف، توزیع پایداری نقطه‌ای مقادیر کمتری نسبت به سایر حالات مصرف را داشت به شکلی که روند تغییرات شاخص کل پایداری شبکه با کاهش فشار از 0.66 به 0.41 کاهش یافته بود. در همین حالت و همزمان، متوسط شاخص نقطه‌ای شبکه از 0.8 به 0.27 کاهش یافته بود؛ بنابراین مقایسه شاخص‌های پایداری کل و نقطه‌ای شبکه، نشان می‌دهد که میزان و توزیع شاخص پایداری نقاط شبکه با افزایش مصرف (کاهش فشار) نسبت به شاخص پایداری کل در همین شرایط، کاهش بیشتری را داشته است. اینگونه استنباط شد که شاخص پایداری نقطه‌ای در حالت بیشینه مصرف در مقایسه با شاخص پایداری کل، معرف بهتری برای گره‌های مصرف شبکه بود؛ بنابراین می‌توان توصیه نمود که در برنامه‌های اصلاح و بازسازی شبکه، ارزیابی و ارتقای پایداری نقطه‌ای، نتایج اجرایی مطلوب‌تری را فراهم خواهد نمود.

کلیدواژه‌ها

موضوعات

عنوان مقاله English

Development of an Evaluation Method for Urban Water Network Sustainability Through the Innovation of a Point Sustainability Index: A Case Study of Abyek

نویسندگان English

Darab Biranvandi 1
Hossein Hassanpour Darvishi 2
Hossein Ebrahimi 2
1 PhD Student of Water Resources, Deptartment of Civil Engineering, Shahr-e-Qods Branch, Islamic Azad University, Tehran, Iran.
2 Associated Professor, Deptartment of Civil Engineering, Shahr-e-Qods Branch, Islamic Azad University, Tehran, Iran.
چکیده English

Designing programs for the rehabilitation and development of water distribution networks before any executive action, in order to avoid wasting costs, requires simulating the effect of executive options on the performance of the network. Performance of water distribution networks is evaluated based on the network risk index for current and the future situations of the network. Also, network performance is evaluated in time periods (daily, monthly, quarterly and yearly) to determine the sustainability of or compare homogeneous networks. It is necessary to pay attention to the evaluation of the local and point efficiency of the network and its relationship with the sustainability index. Therefore, current research was designed to carry out the mechanism of obtaining a point index as a new solution to show the effects of changes on consumption points.
In the implementation step, the hydraulic simulation of the real water distribution network in Abek Qazvin was carried out to extract the necessary data to implement the proposed method. Then the point indices of resilience, vulnerability and reliability were extracted from the overall index of the network in three modes of minimum, average and maximum consumption.
The distribution of point sustainability indices showed that more than half of the network nodes are in a relatively stable state; on the other hand, a significant part of the network nodes is in the relative sustainability range, and some of the network nodes are in the unstable range. Also, the results showed that in the maximum consumption mode, the distribution of point sustainability had lower values than other consumption modes, in such a way that the trend of changes in the overall index of the network decreased from 0.66 to 0.41 with the decrease in pressure. In the same situation simultaneously, the average point index of the network decreased from 0.8 to 0.27. Therefore, the comparison of the total and point sustainability indices of the network showed that the amount and distribution of the sustainability index of the network points have decreased more with the increase in consumption (pressure reduction) compared to the total index. As a result, the point sustainability index in the state of maximum consumption compared to the total sustainability index was a better indicator for network consumption nodes. Therefore, it can be recommended that in network rehabilitation and development programs, evaluation and promotion of point sustainability will provide more favorable operational results. For continuing and raising up the accuracy of current research outcomes, authors suggest to analyses both overall and points sustainability indices within three main conditions of the water network correspondence to periods of the 10 meters water pressures as these pressure classification seats the acceptable pressure situation in the network.
 

کلیدواژه‌ها English

Water Distribution Network
Sustainability
Resilience
Vulnerability
Reliability
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توسعه پایدار شهری
دوره 6، شماره 19
تابستان 1404
صفحه 51-66