Influence of covering materials and shading on the greenhouse cooling in Iraq
العناوين الأخرى
دراسة تأثير مواد التغطية و التضليل على أداء تبريد البيوت المحمية في العراق
المؤلفون المشاركون
al-Bayati, Hind Diya Rida
al-Jabburi, Isam Muhammad Ali
المصدر
al-Nahrain Journal for Engineering Sciences
العدد
المجلد 20، العدد 1 (31 مارس/آذار 2017)، ص ص. 262-271، 10ص.
الناشر
تاريخ النشر
2017-03-31
دولة النشر
العراق
عدد الصفحات
10
التخصصات الرئيسية
العلوم الهندسية والتكنولوجية (متداخلة التخصصات)
الملخص EN
Cooling greenhouses is essential to provide a suitable environment for plant growth in arid regions.
However, using conventional cooling methods are facing many challenges.
Filtering out near infra-red radiation (NIR) at the greenhouse cover can significantly reduce the heating load and can solve the overheating problem of the greenhouse air temperature.
Four cases of shadings were examined for their ability to improve the indoor condition of a greenhouse cooled by indirect direct evaporative cooler: (shade 1) a single layer of polyethylene film, (shade 2) a double layer of polyethylene film, (shade 3) a double layer of polyethylene film with a green mesh layer (shade 4) a double layer of polyethylene film with a Utrecht Corrugated Cardboard with 3cm holes distributed for incident sun light.
An experimental study is conducted to determine the performance parameters of indirect direct evaporative cooling of greenhouse in Baghdad (33.3 oN, 44.4oE) for the four types of shadings.
It was found that the percentage reduction in light intensities for shade 1, shade 2 and shade 3 are 15%, 25% and 40% respectively.
It percentage reduction solar intensity due to shades is increases at the beginning and ending of sunny period, while it was minimum at noon.
The percentage reduction in temperature due to indirect direct evaporative cooling for the shade1, shade 2 and shade 3 and shade 4 are 32.4, 36.3, 42.4, and 47 respectively.
The percentage increasing in relative humidity due to indirect direct evaporative cooling for the shade1, shade 2 and shade 3 and shade 4 are 562.5, 729, 871, and 788 respectively.
The percentage increasing in temperature due heating load of greenhouse for the shade1, shade 2 and shade 3 and shade 4 are 41.4, 33.2, 20.5, and 11 respectively.
The percentage decrease in relative humidity due heating load of greenhouse for the shade1, shade 2 and shade 3 and shade 4 are 43.4, 31, 11.8, and 7 respectively
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
al-Jabburi, Isam Muhammad Ali& al-Bayati, Hind Diya Rida. 2017. Influence of covering materials and shading on the greenhouse cooling in Iraq. al-Nahrain Journal for Engineering Sciences،Vol. 20, no. 1, pp.262-271.
https://search.emarefa.net/detail/BIM-849104
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
al-Jabburi, Isam Muhammad Ali& al-Bayati, Hind Diya Rida. Influence of covering materials and shading on the greenhouse cooling in Iraq. al-Nahrain Journal for Engineering Sciences Vol. 20, no. 1 (2017), pp.262-271.
https://search.emarefa.net/detail/BIM-849104
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
al-Jabburi, Isam Muhammad Ali& al-Bayati, Hind Diya Rida. Influence of covering materials and shading on the greenhouse cooling in Iraq. al-Nahrain Journal for Engineering Sciences. 2017. Vol. 20, no. 1, pp.262-271.
https://search.emarefa.net/detail/BIM-849104
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
رقم السجل
BIM-849104
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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