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Performance and Efficiency Evaluation of Storage Batteries for Solar Electric Power Systems

تقييم أداء و كفاءة مدخرات التخزين لأنظمة الطاقة الكهروشمسية

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 Publication date 2013
and research's language is العربية
 Created by Shamra Editor




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Batteries are energy storage devices that are particularly useful for powering small portable devices like phones, laptops and entertainment devices as well as mobility devices that travel over the earth's surface, through water and air. During the night, or during a period of low solar irradiation, energy is supplied to the load from the battery in solar electrical Power Systems, and that provides Continuity of power supply, and on the other hand boosts the Reliability of the system.


Artificial intelligence review:
Research summary
تتناول هذه الدراسة تقييم أداء وكفاءة المدخرات المستخدمة في نظم الطاقة الكهروشمسية، حيث تعتبر المدخرات جزءاً أساسياً في هذه النظم لتأمين الطاقة الكهربائية خلال فترات الليل أو عند انخفاض الإشعاع الشمسي. تم إجراء اختبارات عملية على ثلاثة أنواع من المدخرات المتوفرة في السوق المحلية وفقاً لمعايير عالمية مثل IEEE و IEC. تشمل الاختبارات اختبار القبول، اختبار التفريغ، اختبار كفاءة التفريغ الفعلية، واختبار تأثير درجة الحرارة. أظهرت النتائج أن المدخرات الجافة كانت الأكثر كفاءة وأداءً مقارنة بالمدخرات السائلة ذات الأغطية المفتوحة والمغلقة. تم تسجيل النتائج على شكل منحنيات بيانية وتمت مناقشتها لتحديد المدخرة الأنسب للاستخدام في نظم الطاقة الكهروشمسية. توصي الدراسة باستخدام المدخرات الجافة لأدائها المتميز وتجنب استخدام مدخرات إقلاع السيارات بسبب كفاءتها المنخفضة وتأثرها الكبير بانخفاض درجات الحرارة.
Critical review
دراسة نقدية: تعتبر هذه الدراسة مفيدة جداً في مجال تقييم أداء المدخرات لنظم الطاقة الكهروشمسية، حيث تقدم معلومات دقيقة وشاملة حول أداء وكفاءة المدخرات المختلفة. ومع ذلك، يمكن أن تكون الدراسة أكثر شمولاً إذا تم تضمين أنواع أخرى من المدخرات مثل المدخرات الليثيوم أيون التي أصبحت شائعة في التطبيقات الحديثة. كما أن الدراسة تركز بشكل كبير على الاختبارات العملية دون التطرق بشكل كافٍ إلى الجانب النظري الذي يمكن أن يوضح الأسباب العلمية وراء النتائج. بالإضافة إلى ذلك، كان من الممكن تحسين الدراسة بإجراء اختبارات طويلة الأمد لتقييم تأثير الزمن على أداء المدخرات.
Questions related to the research
  1. ما هي أهمية المدخرات في نظم الطاقة الكهروشمسية؟

    تأتي أهمية المدخرات في نظم الطاقة الكهروشمسية من قدرتها على تأمين الطاقة الكهربائية اللازمة خلال فترات الليل أو عند انخفاض الإشعاع الشمسي، مما يضمن استمرارية التزويد بالطاقة ورفع وثوقية النظام.

  2. ما هي الاختبارات التي أجريت على المدخرات في هذه الدراسة؟

    تم إجراء عدة اختبارات على المدخرات تشمل اختبار القبول، اختبار التفريغ، اختبار كفاءة التفريغ الفعلية، واختبار تأثير درجة الحرارة.

  3. ما هي النتائج الرئيسية التي توصلت إليها الدراسة؟

    أظهرت النتائج أن المدخرات الجافة كانت الأكثر كفاءة وأداءً مقارنة بالمدخرات السائلة ذات الأغطية المفتوحة والمغلقة، حيث كانت قادرة على إعطاء سعتها الاسمية بشكل أفضل.

  4. ما هي التوصيات التي قدمتها الدراسة؟

    توصي الدراسة باستخدام المدخرات الجافة لأدائها المتميز وتجنب استخدام مدخرات إقلاع السيارات بسبب كفاءتها المنخفضة وتأثرها الكبير بانخفاض درجات الحرارة.


References used
Vincent ,Colin Angus. Modern Battery,2002
IEEE std 450. IEEE Recommended Practice for Maintenance, Testing, and Replacement of Vented Lead-Acid Batteries for Stationary Applications .2002
Pierre Lenain, Enersys, France. Secondary cells and batteries for photovoltaic energy systems .2005
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