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Natural Fibers as Novel sources for Thermal Insulation Materials

Submission Deadline: 06 May 2023 (closed)

Guest Editors

Mohamed El-Sayed Ali, Professor, College of Engineering, Mechanical Engineering Department, King Saud University, Saudi Arabia

Mohamed EI-Sayed Ali received his Ph.D. from the University of Colorado at Boulder in 1988. His research interests include natural and forced convection heat transfer, nanofluid heat transfer, thermal natural insulation materials. He has published about 160 articles in well-recognized journals and conference proceedings. He has written a chapter on Free Convection Heat Transfer from Different Objects. He is currently on the editorial boards of three journals. He was awarded the Distinguished Research and Publication Award for the years 2010, 2011, 2014, and 2017 by the College of Engineering at King Saud University. He served as a plenary/keynote and invited speakers at national and international conferences. He registered in REPRISE (the Register of Scientific Experts set up at the MIUR) for Fundamental research and Applied research, Roma, Italy. He is a referee for most international journals in his field. His new invention of natural insulating material has been recognized by the Asia Research News 2012 and by Physics Today Magazine, July 2014 Daily edition, Enterprise. This invention was awarded a gold medal at the British Invention Show 2011 and at the International Exhibition of Inventions of Geneva 2012. It was also awarded the TechConnect Innovation Award at the World Innovation Summit & Showcase, in 2014, Washington, DC., USA.


Natural fibers have many advantages over synthetic petrochemical insulation materials. They are cheap, biodegradable materials, not hazardous to human beings, with comparable thermal conductivity, low environmental impact, and acceptable sound absorbing coefficient. Most natural fibers can be considered agro wasted materials. At the same time, they are flammable and water-absorbing, which makes their use challenging.

This special issue focuses on the use of such natural fibers as thermal insulation materials in buildings and other applications subject (but not limited) to the following topics:
- Thermal conductivity measurements at different temperatures and densities of natural fibers
- Thermal characterization of the suggested fibers
- Morphology characterization
- Moisture content 
- Acoustic analysis of the fibers
- Introducing new novel agro fibers
- Mechanical tests of the loose and bound fibers
- Binder types
- Hybrid specimens made of different fibers   


Thermal conductivity of natural fibers; sound absorbing coefficient of natural fibers; hybrid natural fibers; binders used with natural fibers; mechanical properties of natural fibers; thermal stability of natural fibers

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