مقایسه کارآیی آب‌شیرین‌کن‌های خورشیدی یک شیب و دو شیب در مناطق خشک (مطالعه موردی: شهر زابل)

نوع مقاله : مقاله پژوهشی

نویسندگان

1 نویسنده مسئول، بخش تحقیقات حفاظت خاک و آبخیزداری، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی سیستان، سازمان تحقیقات، آموزش و ترویج،

2 بخش تحقیقات حفاظت خاک و آبخیزداری، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی سیستان، سازمان تحقیقات، آموزش و ترویج کشاورزی، زابل، ایران

10.22059/ijswr.2025.379282.669754

چکیده

در حال حاضر تداوم خشکسالی و بحران کم آبی باعث تنش آبی شدید در منطقه سیستان شده است که بهره‌برداری از منابع آب شور با شیرین کردن آن نقش بسزایی در تامین آب برای مصارف مختلف در این منطقه دارد. در این پژوهش که باهدف مقایسه کارآیی آب‌شیرین‌کن‌های تبخیری-تقطیری با استفاده از انرژی خورشیدی انجام شد، عملکرد آب شیرین‌کن‌های دو شیب و تک شیب در شهر زابل مورد بررسی قرار گرفت. آب شیرین‌کن‌های مورد استفاده دارای مخزنی به ابعاد 95 *60 سانتی‌متر می‌باشد که سطح آن‌ها با پوشش شیشه محصور شد. به‌منظور بالا بردن قابلیت جذب و کاهش هدر رفت انرژی حرارتی، رنگ مخازن آن‌ها تیره انتخاب شد. همچنین برای جمع‌آوری آب تقطیر شده از سطح شیشه‌ها نیز کانال‌های شیبداری در مخازن این سامانه‌ها تعبیه شد. بانصب دماسنج درجه حرارت داخلی این سامانه‌ها و با نمونه برداری از آب ورودی و خروجی به آب شیرین‌کن‌ها خصوصیات شیمیایی آب استحصالی آنها اندازه‌گیری شد. نتایج نشان داد که فرآیند تبخیر – تقطیر در آب‌شیرین‌کن‌ها باعث حذف آلاینده‌ها و بهبود شاخص‌های کیفی از جمله میزان سختی آب (TDS)، شوری (EC) و BOD در آب شیرین تولید شده است. مقایسه دمای داخلی سامانه‌ها بیانگر آن است که بیشترین درجه حرارت داخلی در مخزن آب‌شیرین‌کن دو شیب ایجاد شده است که به‌طور معنی‌دار بیشتر از نوع یک شیب می‌باشد (01/0p ≤). همچنین یافته‌ها نشان داد که آب‌شیرین‌کن دو شیب درصد کارایی بیشتری (6/28) نسبت به نوع یک شیب (5/24) داشت که از لحاظ آماری نیز در سطح یک درصد معنی‌دار بود (01/0p ≤  ). مقایسه عملکرد آب‌شیرین‌کن‌های دو شیب و تک شیب نشان داد که سامانه دو شیب عملکرد بالاتری در تولید آب شیرین دارد و استفاده از انرژی خورشیدی پتانسیلی بالقوه برای توسعه آب شیرین‌کن‌های تبخیری – تقطیری در منطقه سیستان بشمار می‌رود.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Comparison of the efficiency of the single and double-slope solar stills in dry regions (Case study: Zabul city)

نویسندگان [English]

  • Mansour Jahantigh 1
  • Moien Jahantigh 2
1 Corresponding Author, Department of Soil Conservation and Water Management, Sistan Agriculture and edition Natural Resources Research Center (AREEO) Zabol, Iran.
2 Department of Soil Conservation and Water Management, Sistan Agriculture and edition Natural Resources Research Center (AREEO) Zabol, Iran.
چکیده [English]

The Sistan region is experiencing significant water stress due to an ongoing drought and water scarcity crisis. In response, the utilization of saline water resources through desalination techniques has become crucial for addressing diverse water demands in this area. This study explores the efficiency of single and double slope Solar stills in Zabol City. The dimensions of the basin Solar stills were 60×95 cm, which covered with glass. To increase the absorption capacity and reduce thermal energy waste, the tank color was chosen to be dark. Inside the Solar stills thermometer was placed to measure the temperature. The results showed that the evaporative-distillation process lead to remove the pollutant and improve the improved quality indicators, including water hardness (TDS), salinity (EC), and BOD in the produced freshwater. The findings indicated that evaporative distillation led to the removal of pollutants and improved quality indicators, including total dissolved solids (TDS), electrical conductivity (EC), and biochemical oxygen demand (BOD). A comparison of the internal temperatures of the systems indicated that the highest internal temperature was created in the double-slope basin solar stills, which was significantly higher than that of the single-slope type (p ≤ 0.01). The findings also showed that the double-slope solar still had a higher efficiency (28.6%) than the single-slope type (24.5%), which was statistically significant at the one percent level (p ≤ 0.01). Comparing the performance of double-slope and single-slope solar stills showed that the double-slope system has higher performance in producing fresh water, and the use of solar energy is considered a potential for the development of evaporation-distillation desalination plants in the Sistan.

کلیدواژه‌ها [English]

  • Efficiency
  • Solar stills
  • saline water
  • Solar energy

Introduction:

Water is one of the basic needs of human life and good health on earth. Access to water is one of the most important challenges in developing countries, especially in dry areas. So that with population growth and socio-economic development of societies, countries are limited in meeting their water needs. The most important sources of surface and underground water in some places are salty, which needs to be desalination. One of them is the solar distillation method. This method is very simple and low-cost, and it is suitable for supplying water to areas with low population and places where water supply is difficult. This method is very simple and low-cost, and it is suitable for supplying water to areas with low population and places where water supply is difficult.

Objective:

This study explores the efficiency of single and double slope Solar stills in Zabol City. The purpose of this study is to investigate the performance of the single and double-slope solar still collectors in the climatic conditions of Zabol city in the southeast of the country.

Material and method:

The dimensions of the basin Solar stills were 60×95 cm, which covered with glass. To increase the absorption capacity and reduce thermal energy waste, the tank color was chosen to be dark. Inside the Solar stills thermometer was placed to measure the temperature. The results showed that the evaporative-distillation process lead to remove the pollutant and improve the improved quality indicators, including water hardness (TDS), salinity (EC), and BOD in the produced freshwater. The findings indicated that evaporative distillation led to the removal of pollutants and improved quality indicators, including total dissolved solids (TDS), electrical conductivity (EC), and biochemical oxygen demand (BOD).

Result and Discussion:

A comparison of the internal temperatures of the systems indicated that the highest internal temperature was created in the double-slope basin solar stills, which was significantly higher than that of the single-slope type (p ≤ 0.01). The findings also showed that the double-slope solar still had a higher efficiency (28.6%) than the single-slope type (24.5%), which was statistically significant at the one percent level (p ≤ 0.01). Comparing the performance of double-slope and single-slope solar stills showed that the double-slope system has higher performance in producing fresh water, and the use of solar energy is considered a potential for the development of evaporation-distillation desalination plants in the Sistan..

Author Contributions

All authors contributed equally to the conceptualization of the article and writing of the original and subsequent drafts.

Data Availability Statement

Data is available on reasonable request from the authors.

Acknowledgements

The authors would like to thank the reviewers and editor for their critical comments that helped to improve the paper. The authors gratefully acknowledge the support and facilities provided by the Department of Hydrology and Water Resources, Soil Conservation and Watershed Management Research Institute, Organization (AREEO), Iran.

Ethical considerations

The Authors avoid falsifying data, plagiarism and misconduct.

Conflict of interest

The author declares no conflict of interest.

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