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Effect of ultraviolet radiation on thermal insulation of natural composite materials
Other Title(s)
تأثير الأشعة فوق البنفسجية على العزل الحراري للمواد المركبة الطبيعية
Joint Authors
Salih, Fuad A.
Abd Allah, Fadl A.
Mahdi, Ala Jamal
Source
Journal of Engineering and Development
Issue
Vol. 19, Issue 5 (31 Jul. 2015), pp.147-162, 16 p.
Publisher
al-Mustansyriah University College of Engineering
Publication Date
2015-07-31
Country of Publication
Iraq
No. of Pages
16
Main Subjects
Languages & Comparative Literature
Abstract EN
Thermal conductivity and performance of the natural composite materials as thermal insulator after exposure to ultraviolet radiation effect are investigated.
Accelerated weathering chamber has been manufactured to investigate ultraviolet radiation effect on composite materials.
The composite materials were prepared of polyester resin which reinforced with fiberglass, jute and eggshell powder.
The experimental work has been divided into two parts.
The first part studies the effect of ultraviolet radiation on the thermal conductivity of the composite materials with different volume fractions (20%, 40% and 60%) using Lee's disc method.
The second part deals with manufacturing three test chambers (reference chamber, unaffected chamber and affected chamber) with dimensions of (50×50×50cm).
These chambers are used to investigate the performance of composite materials, with specimens dimensions of (50×50cm) and 4mm thickness for volume fractions of (30% and 60%), as thermal insulators after weathering with ultraviolet radiation.
Experimental results indicate that cladding the external wall of chamber by affected or unaffected composite materials gives lower temperature distribution inside the chamber along the day than without cladding.
Thermal conductivity of fiberglass and eggshell composite materials with ultraviolet radiation effect is higher than that without ultraviolet radiation effect.
While the thermal conductivity of jute composite material decreases after exposure to ultraviolet effect so that Jute composite material gives higher temperature reduction of (19%) comparing with fiberglass composite material (10%) and eggshell composite material (9%).
American Psychological Association (APA)
Salih, Fuad A.& Abd Allah, Fadl A.& Mahdi, Ala Jamal. 2015. Effect of ultraviolet radiation on thermal insulation of natural composite materials. Journal of Engineering and Development،Vol. 19, no. 5, pp.147-162.
https://search.emarefa.net/detail/BIM-830293
Modern Language Association (MLA)
Salih, Fuad A.…[et al.]. Effect of ultraviolet radiation on thermal insulation of natural composite materials. Journal of Engineering and Development Vol. 19, no. 5 (Jul. 2015), pp.147-162.
https://search.emarefa.net/detail/BIM-830293
American Medical Association (AMA)
Salih, Fuad A.& Abd Allah, Fadl A.& Mahdi, Ala Jamal. Effect of ultraviolet radiation on thermal insulation of natural composite materials. Journal of Engineering and Development. 2015. Vol. 19, no. 5, pp.147-162.
https://search.emarefa.net/detail/BIM-830293
Data Type
Journal Articles
Language
English
Notes
Record ID
BIM-830293