دراسة تأثير توزع حمل الماء الساخن على الأداء الحراري لنظام التسخين الشمسي
Abstract
يهدف هذا البحث إلى دراسة تأثير التغير في توزع حمل الماء الساخن المنزلي على الأداء الحراري لنظام التسخين الشمسي وذلك من أجل فترات زمنية مختلفة لتوزع الماء الساخن (ساعة) h = 6, 12, 24. وقد تم تحليل الحمل الحراري الساعي لنظام التسخين الشمسي باستخدام برنامج على الحاسوب، تحت تأثير التغيرات الساعية لحمل الماء الساخن وشدة الإشعاع الشمسي لتحديد كمية الحمل الحراري اليومية، الشهرية والسنوية التي يتم تزويدها بنظام الطاقة الشمسية المدروس وذلك بالنسبة لمساحات مختلفة للمجمع الشمسي، كما تم دراسة نسبة التغطية الشمسية في هذه الحالات أيضاً. ويلاحظ من هذه الدراسة أن تأثير التغير في توزع الحمل الحراري للماء الساخن ليس ذا أهمية على كل من كمية الحمل الحراري للماء الساخن ونسبة التغطية الشمسية المزودة من النظام الشمسي.
The main aim of this research is to study the effect of variation in the hot water load distribution on the thermal performance of the solar water heating system for several patterns of hot water load distribution (h = 6, 12, 24 hours). The hourly thermal load of solar water heating system was analyzed by a computer simulation program using hourly changes of hot water loads and hourly solar radiation intensity to determine the daily, monthly and yearly quantity of hot water load and solar fraction supplied by suggested solar energy system for different areas of the solar collector. We notice from this work that hot water load distribution has no significant effect on the quantity of hot water load and solar fraction supplied by solar system.
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