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Experimental Study of the Performance of Improved (Solar Dryer-Greenhouse) in Drying Syrian Tobacco

دراسة تجريبية لأداء نموذج (مجفف شمسي-بيت بلاستيكي) مطوّر لتجفيف التبغ السوري

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




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This research study the improvement of the performance of drying the agriculture products in (solar dryer-greenhouse), therefore; the design of the solar dryer had modified. The thermal storage unit became bigger, and the glass transparent roof covered by thermal isolation sheet to reduce the thermal losses at night, a centurial fan was put on the drying tunnel to increase the speed of drying of Tobacco olives by increasing the hot drying air flue. The solar dryer tested in the tobacco researches center in Ramilah in Lattakia by drying samples of tobacco(Brly, Bassma) during the period of June,2013. The dried products in the solar dryer were completely protected from rains and insects, and the dried products are of high quality, The tobacco(Brly, Bassma) being dried in the dryer in four and three days, respectively.


Artificial intelligence review:
Research summary
تتناول هذه الدراسة التجريبية تحسين أداء نموذج مجفف شمسي-بيت بلاستيكي لتجفيف التبغ السوري، حيث تم إجراء تعديلات على تصميم المجفف لزيادة فعاليته. شملت التعديلات توسيع وحدة التخزين الحراري، إضافة ساتر عزل حراري، وتركيب مروحة نابذية لزيادة سرعة التجفيف. أجريت التجارب في مركز أبحاث التبغ في الرميلة، اللاذقية، خلال شهر حزيران 2013. أظهرت النتائج أن عملية التجفيف لأوراق تبغ البرلي استغرقت أربعة أيام، بينما استغرقت عملية تجفيف تبغ البصما ثلاثة أيام. كانت جودة الأوراق المجففة عالية ومحمية من المطر والحشرات. خلصت الدراسة إلى أن التعديلات التصميمية حسنت من مردودية المجفف وزادت من فعالية التجفيف بنسبة 31%، مع توصيات بتطوير منظومة التخزين الحراري بشكل أكبر لضمان استمرارية التجفيف ليلاً.
Critical review
دراسة نقدية: تُعد هذه الدراسة خطوة مهمة نحو تحسين تقنيات التجفيف الشمسي، إلا أن هناك بعض النقاط التي يمكن تحسينها. أولاً، لم تتناول الدراسة بشكل كافٍ تأثير التغيرات المناخية الموسمية على أداء المجفف. ثانياً، يمكن أن تكون هناك حاجة إلى دراسة أعمق حول تأثير التعديلات على تكلفة الإنتاج ومدى جدواها الاقتصادية على المدى الطويل. ثالثاً، لم يتم التطرق إلى تأثير التعديلات على استدامة النظام البيئي المحيط. وأخيراً، يمكن أن تكون هناك حاجة إلى تجارب ميدانية إضافية في مناطق مختلفة للتحقق من فعالية النموذج المعدل في ظروف مناخية متنوعة.
Questions related to the research
  1. ما هي التعديلات التي أجريت على تصميم المجفف الشمسي في الدراسة؟

    شملت التعديلات توسيع وحدة التخزين الحراري، إضافة ساتر عزل حراري فوق السطح الزجاجي، وتركيب مروحة نابذية لزيادة سرعة التجفيف.

  2. ما هي مدة التجفيف لأوراق تبغ البرلي وتبغ البصما في المجفف الشمسي المعدل؟

    استغرقت عملية التجفيف لأوراق تبغ البرلي أربعة أيام، بينما استغرقت عملية تجفيف تبغ البصما ثلاثة أيام.

  3. ما هي النتائج التي توصلت إليها الدراسة بخصوص جودة الأوراق المجففة؟

    كانت جودة الأوراق المجففة عالية، حيث كانت محمية من المطر والحشرات، وتمتعت بنوعية جيدة.

  4. ما هي التوصيات التي قدمتها الدراسة لتحسين فعالية المجفف الشمسي؟

    توصي الدراسة بتطوير منظومة التخزين الحراري بشكل أكبر لضمان استمرارية التجفيف ليلاً، وإدخال مصدر طاقة مساعد أو زيادة فعالية العزل الحراري لتقليل الضياعات الحرارية.


References used
Arun S. Mujumdar, Hall.carl, Handbook of Industrial Drying, Taylor & Francis Group, U.S.A, pg-308, 2006
Sodha MS, Bansal NK, Kumar A, Bansal PK, Malik MAS. Solar crop drying. vol. 1. Boca Raton, FL: CRC Press; 1987
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