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Experimental Study of A Small Capacity Solar Absorption Cooling Machine

دراسة تجريبية لآلة تبريد امتصاصية شمسية صغيرة الاستطاعة

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 Publication date 2019
and research's language is العربية
 Created by Shamra Editor




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In this research, an absorption cooling system of nominal capacity 10 [kW] has been built and tested; it works by different sources of heat and by different working fluids, it is equipped with adequate sensors for measuring temperature, flows and pressures in multiple locations. The features of operating the machine for air conditioning has been determined, analyzed and discussed with the working fluid “water-Lithium Bromide” by different boundary conditions. The results of experiments proved the possibility of the work of solar absorption cooling machine continuously at the heating temperature of the generator of 60 [°C] producing cold water in the evaporator at a temperature less than 10 [°C] with a coefficient of performance 0,5 and this enables us to use Simple and cheap flat solar collectors for the operation of the machine.


Artificial intelligence review:
Research summary
تناول البحث دراسة تجريبية لآلة تبريد امتصاصية شمسية صغيرة الاستطاعة بقدرة اسمية تبلغ 10 كيلوواط. تم تشغيل الآلة باستخدام مصادر حرارية مختلفة ومحاليل ثنائية متنوعة، مع التركيز على محلول الماء وبروميد الليثيوم. تم تجهيز الآلة بحساسات لقياس درجات الحرارة، التدفقات، والضغوط في مواقع متعددة. أثبتت التجارب إمكانية تشغيل الآلة بشكل مستمر عند درجة حرارة تسخين للمولد حوالي 60 درجة مئوية، مما ينتج ماءً بارداً في المبخر بدرجة حرارة أقل من 10 درجات مئوية وبعامل أداء يصل إلى 0.5. يتيح ذلك استخدام المجمعات الشمسية المسطحة لتشغيل الآلة بكفاءة نظرًا لبساطة صنعها وتكلفتها المنخفضة. تم تحليل خواص تشغيل الآلة ومناقشتها تحت شروط حدية مختلفة، مما يساهم في تحسين أداء الآلة واستخدامها في تطبيقات التكييف والتبريد.
Critical review
دراسة نقدية: على الرغم من أن البحث يقدم مساهمة قيمة في مجال التبريد الامتصاصي باستخدام الطاقة الشمسية، إلا أن هناك بعض النقاط التي يمكن تحسينها. أولاً، كان من الممكن تضمين مقارنة تفصيلية بين أداء الآلة باستخدام محاليل ثنائية مختلفة لتقديم رؤية أوسع حول أفضل المحاليل الممكنة. ثانياً، لم يتم التطرق بشكل كافٍ إلى التحديات العملية التي قد تواجه تطبيق هذه التقنية في بيئات مختلفة وظروف جوية متنوعة. أخيراً، كان من الممكن تقديم تحليل اقتصادي مفصل لتكلفة تشغيل الآلة مقارنةً بالأنظمة التقليدية لتبريد الهواء، مما يعزز من جدوى استخدام هذه التقنية على نطاق أوسع.
Questions related to the research
  1. ما هي القدرة الاسمية لآلة التبريد الامتصاصية الشمسية التي تمت دراستها في البحث؟

    القدرة الاسمية لآلة التبريد الامتصاصية الشمسية التي تمت دراستها هي 10 كيلوواط.

  2. ما هو المحلول الثنائي المستخدم في التجارب لتحقيق التبريد؟

    المحلول الثنائي المستخدم في التجارب هو الماء وبروميد الليثيوم.

  3. ما هي درجة حرارة التسخين المطلوبة لتشغيل المولد في الآلة؟

    درجة حرارة التسخين المطلوبة لتشغيل المولد في الآلة هي حوالي 60 درجة مئوية.

  4. ما هو عامل الأداء الذي تم تحقيقه في التجارب؟

    عامل الأداء الذي تم تحقيقه في التجارب يتراوح وسطياً حوالي 0.5.


References used
ALIZADEH,S.Multi-pressure absorption cycles in solar refrigeration: a technical and economical study. Solar Energy Vol. 69, No. 1, 2000, S: 37 –44
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551  - 0  - -  Adam Mousa was published in field ( Physics)
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