Molten selenium, silver, cadmium, and tin were used to prepare a-Se, and a-Se98M2 (M = Ag, Cd, and Sn) alloys in order to determine the thermo-physical properties of these materials using the transient plane source technique. In order for these alloys to be used in industrial applications such as phase change optical storage, photo electrochemical solar cells, and holographic recording systems, among others, their thermal transport properties needed to be ...
Author(s): A. Sharma, K. Singh, N. Mehta
Disodium hydrogenphosphate dodecahydrate was investigated for its thermophysical properties and the effects that temperature had on these properties. The goal of this work was to determine if this material was a suitable phase change material for use in supercooled thermal energy storage. It was found that this hydrate could efficiently exchange energy between itself and heat sources, it could reduce heat loss from energy storage systems, and it could store ...
Author(s): Masaaki Oya, Masakazu Yamazaki, Satoshi Hirano, Takeo S. Saitoh
Coal fly ash was used as the base material for the formation of thermal insulation materials. The porosity of the produced materials ranged from 86.3-94.5 vol. %. The insulating materials were prepared by ball milling, followed by foaming assisted by the addition of K12, casting and drying, and finally sintering. No harmful chemicals were released to the environment during their preparation. It was found that the thermal conductivity of the samples ...
Author(s): Heping Zhang, Junjie Feng, Lunlun Gong, Ruifang Zhang, Xudong Cheng, Ye Li
The transient plane source technique was used to simultaneously measure the thermal conductivity, thermal diffusivity, and specific heat of a concrete sample to determine how these properties change when exposed to high temperature. The sample was heated and the properties were measured at 20, 90, 110, 200, 500, and 600oC. At this point, the sample was allowed to cool, and measurements were once again taken at 500, 200, and 20 oC. It was found that after exposure to ...
Author(s): Robert Jansson
The authors have presented a review of steady-state and transient measurement techniques for the determination of thermal conductivity, and have introduced a new method for the determination of thermal transport properties in anisotropic building materials, known as the dynamic adiabatic technique. It was found that the technique was functional for a first estimation of thermal properties in a complex structure, but that it required long testing times....
Author(s): Bulent Yesilata, Paki Turgut
