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
Insulation is a vital component in the construction industry, notably in this study, glass wool. Maximizing the hydrothermal performance of glass wool is key when dealing with water vapor, humidity and permeability. Although insulation does not generally come in contact with liquids, it is important to consider all outcomes, with likelihood of accidents occurring and the varying levels of workmanship. The transient technique was employed to thermally characterize glass wool ...
Author(s): Laurent Marmoret
The thermal conductivity and specific heat of seven different polyurethane foams and their melts were investigated using the Transient Plane Source. The thermal conductivity of the foams themselves ranged between 0.048 and 0.050 W/mK, while the thermal conductivity of the melt product was 0.186 to 0.200 W/mK, a difference of 300%. Melting had the opposite effect on the specific heat of the samples, which dropped 20% from a range of 2359 to 2996 J/kgK to 1958 ...
Author(s): C. M. Fleischmann, D. S. W. Pau, K. Y. Li, M. J. Spearpoint
