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Register a new userA thermodynamic study to improve the performance of the HELANDT cycle to produce liquefied air
دراسة ترموديناميكية لتحسين أداء دورة HELANDT لإنتاج الهواء المسال
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في هذا البحث قمنا بدراسة طرق إنتاج البرودة الشديدة اعتمادا على ظاهرة جول - طومسون. و قمنا بدراسة معلقة لما قام بها الباحثون الاخرون- Claude- Kapitza HELANDT و آخرون للوصول إلى درجات حرارة منخفضة و بالتالي الى درجة حرارة تمييع الهواء اعتمادا على هذه الظاهرة و درسنا بالتفصيل مؤثرات عمليتي الخنق و التمدد و أجرينا مقارنة بينهما لجهة إمكانية استخدام كلا منهما و الشروط المثالية لاستخدام كلا منهما.
In this research, we studied the methods of cryogenics depended on Joule-Thomson effect. We studied in-depth what the other researchers( KAPITZA, CLAUDE, HELANDT and others) do to reach low temperatures and thus to the liquefaction temperature of air. We studied in detail the effects of throttling and expansion and we compared them to the possibility of use both and the ideal conditions to use both of them.
Artificial intelligence review:
Research summary
تتناول هذه الدراسة تحسين أداء دورة Helandt لإنتاج الهواء المسال من خلال دراسة ترموديناميكية تعتمد على ظاهرة جول-طومسون. تم تحليل تأثير عمليات الخنق والتمدد على النظام، وتمت مقارنة الشروط المثالية لاستخدام كل منهما. استخدم الباحثون برنامج EES لتحليل تأثير بعض البارامترات على أداء النظام، مثل نسبة الهواء المار إلى الممدد والمردود الإيزوانتروبي للممدد. تم إدخال تحسينات على النظام بإجراء عملية التمدد على مرحلتين، مما أدى إلى تخفيض درجة الحرارة قبل عملية الخنق وزيادة فعالية النظام وزيادة نسبة الهواء المسال بنسبة 6.79%. تم توضيح أهمية هذه التحسينات من خلال مقارنة النتائج مع النظام الأصلي، مما أظهر زيادة في الإنتاجية وفعالية النظام.
Critical review
تعتبر هذه الدراسة خطوة مهمة نحو تحسين كفاءة دورة Helandt لإنتاج الهواء المسال. ومع ذلك، هناك بعض النقاط التي يمكن تحسينها. أولاً، كان من الأفضل تضمين تحليل اقتصادي لتكاليف التحسينات المقترحة ومدى تأثيرها على الجدوى الاقتصادية للنظام. ثانياً، لم يتم التطرق بشكل كافٍ إلى تأثير العوامل البيئية على أداء النظام. ثالثاً، كان من الممكن توسيع نطاق الدراسة لتشمل مقارنة مع أنظمة أخرى لإنتاج الهواء المسال. بشكل عام، الدراسة مفيدة ولكنها تحتاج إلى مزيد من التحليل الشامل لتكون أكثر اكتمالاً.
Questions related to the research
-
ما هي الظاهرة الفيزيائية الأساسية التي تعتمد عليها دورة Helandt لإنتاج الهواء المسال؟
تعتمد دورة Helandt على ظاهرة جول-طومسون لتحقيق التبريد الشديد المطلوب لإنتاج الهواء المسال.
-
ما هو التحسين الرئيسي الذي أدخله الباحثون على دورة Helandt؟
التحسين الرئيسي هو إجراء عملية التمدد على مرحلتين، مما أدى إلى تخفيض درجة الحرارة قبل عملية الخنق وزيادة فعالية النظام.
-
ما هي نسبة الزيادة في إنتاجية الهواء المسال بعد التحسينات المقترحة؟
زادت نسبة الهواء المسال بنسبة 6.79% بعد التحسينات المقترحة.
-
ما هو البرنامج الذي استخدمه الباحثون لتحليل تأثير البارامترات على أداء النظام؟
استخدم الباحثون برنامج Engineering Equation Solver (EES) لتحليل تأثير البارامترات على أداء النظام.
References used
BARRON R F ,1111“CRYOGENIC SYSTEMS‟, SECOND EDITION, NEW YORK, OXFORD UNIVERSITY PRESS
Timmerhaus,K.D. and Flynn T.M,Cryogenic 1989. Process Engineering Plenum Press
YVONNE LIM, MUSHTAK AL-ATABI, RICHARD A. WILLIAMS, 2016 LIQUID AIR AS AN ENERGY STORAGE JOURNAL OF ENGINEERING SCIENCE AND TECHNOLOGY,VOL. 11. 496 – 515
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