This study suggested the use of capric acid–palmitic acid–stearic acid ternary eutectic mixture/expanded graphite (CA–PA–SA/EG) composite phase change material (PCM), as a low-temperature heat storage material. With a mass ratio of CA:PA:SA = 79.3 : 14.7 : 6.0, the mixture was prepared and its mass ratio compared to that of the CA-PA-SA/EG composite could reach as high as 90%. The melting temperature of the CA-PA-SA/EG composite was ...
Author(s): Caixing Chen, Hua Zhang, Tao Xu, Xuenong Gao, Yutang Fang, Zhengguo Zhang
Resin polymers, such as Polymethyl methacrylate (PMMA), have been used in denture fabrication because of their easy molding ability and flawless appearance. However, these PMMAs are not the most desirable material when dealing with mechanical strength, electrical conductivity and thermal stability. In this study, the addition of fillers, such as Nano-Aluminum Oxide (Nano-Al2O3) and plasma treated polypropylene (PP) fibers, to these polymers has been explored. Nanocomposites are desired in ...
Author(s): Intisar J. Ismail, Omar R. Muklif
Silica aerogels (SA) are identified as one of the most advanced thermal insulating materials to date, however, their range of applications is limited due to a high sensitivity to moisture and issues with brittleness. This study highlights the design and fabrication of a new and improved thermal insulation material, robust flexible hybrid silica nanofiber (SNF)-SA membranes. To allow for higher thermal insulating characteristics, these membranes form an interpenetrating network ...
Author(s): Bin Ding, Haoru Shan, Hongxia Zheng, Jianyong Yu, Lifang Liu, Xianfeng Wang, Ying Bai
This study highlights the ongoing search for sustainable and thermally suitable phase-change materials (PCMs), for hot weather building climates, such as Iraq. This new PCM must have an extraordinary heat and cold retention ability. Building industries are interested in using paraffin’s in their roofing materials, because of their thermo-physical properties, their profitability to save on electricity and HVAC (heating-ventilating air conditioning) systems, their local abundance, as well as their ...
Author(s): Abdulrahman Th. Mohommad, Hasanen M. Hussen, Hussein J. Akeiber, Mazlan A. Wahid
Wooden cellular slabs with rectangular perforations are commonly used by civil engineers in settings such as concert halls, nurseries, hotels, airports, etc., for noise elimination and heat retention. In this study, fire resistance of perforated wooden slabs was tested in order to attain a numerical approach using the finite element method, when predicting the performance and behavior of the perforated wooden slabs. Paying close attention to the thermal properties of ...
Author(s): D. Ferreira, E. M. M. Fonseca, J. M. Meireles, P. A. G. Piloto
