![](/images/graphics-bg.png)
Modeling Approach for Determining Equivalent Optical Constants of Plastic Shading Nets under Solar Radiation Conditions
المؤلفون المشاركون
al-Helal, Ibrahim M.
Abdel-Ghany, Ahmed M.
المصدر
Advances in Materials Science and Engineering
العدد
المجلد 2012، العدد 2012 (31 ديسمبر/كانون الأول 2012)، ص ص. 1-8، 8ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2012-09-02
دولة النشر
مصر
عدد الصفحات
8
التخصصات الرئيسية
العلوم الهندسية و تكنولوجيا المعلومات
الملخص EN
The radiative properties of several plastic shading nets were measured under natural solar radiation conditions.
We found that the plastic nets behave as homogeneous translucent materials (e.g., plastic film, plastic sheets, and glass).
Based on this behavior, we suggest that it is possible to treat plastic nets as translucent materials and to characterize them with equivalent optical constants (i.e., equivalent refractive indexes, neq, and equivalent extinction coefficients, σeq).
Here a physical model to determine neq and σeq of plastic nets was described in analogy to homogeneous translucent materials.
We examined three groups of nets based on their color (black, black-green, and beige).
Each group consisted of nets with four or five different porosities.
Nets of each group had almost the same texture structure.
For each group, we derived an equation for neq as a function of the net porosity and determined an average value for σeq.
Once values of neq and σeq were determined, the solar radiative properties of a net could then be calculated from neq and σeq for any incident angle of solar beam radiation without the need of measurements.
The present model was validated by comparing the calculated with the measured radiative properties of three nets at different incident angle of solar beam radiation.
The calculated radiative properties reasonably agreed with measured values.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Abdel-Ghany, Ahmed M.& al-Helal, Ibrahim M.. 2012. Modeling Approach for Determining Equivalent Optical Constants of Plastic Shading Nets under Solar Radiation Conditions. Advances in Materials Science and Engineering،Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-450441
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Abdel-Ghany, Ahmed M.& al-Helal, Ibrahim M.. Modeling Approach for Determining Equivalent Optical Constants of Plastic Shading Nets under Solar Radiation Conditions. Advances in Materials Science and Engineering No. 2012 (2012), pp.1-8.
https://search.emarefa.net/detail/BIM-450441
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Abdel-Ghany, Ahmed M.& al-Helal, Ibrahim M.. Modeling Approach for Determining Equivalent Optical Constants of Plastic Shading Nets under Solar Radiation Conditions. Advances in Materials Science and Engineering. 2012. Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-450441
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-450441
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
![](/images/ebook-kashef.png)
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر
![](/images/kashef-image.png)