With the use of multiple thermal instruments, the thermal conductivity (lambda) of fibrous insulations was measured in the plane direction. In this study, a method was put forth the estimate thermal conductivity. This method assumed that the thermal conductivity of the anisotropic material was equivalent to that of an isotropic material with identical bulk density and specific heat. This novel method displays the thermal conductivity of the anisotropic material as √(...
Author(s): M. Tsuboi, T. Ohmura, T. Tomimura
This paper studied in-depth the transient hot plate method, by comparing this method to others in order to develop a short test time in which thermal effusivity and thermal conductivity can be measured simultaneously. To investigate this proposed model, four metal samples were analyzed using various techniques to ensure the accuracy between methods. To encompass a wide thermal conductive range, the thermal conductivities of the four metal samples tested, ranged ...
Author(s): A. Kanmogne, Y. Jannot, Z. Acem
When referring to maximizing the energy efficiency of a building, one must first look at the contents of the structure: the make-up of the interior and exterior walls and the contents of the buildings envelope. Generally, when we think of insulation, we think of thermal insulation, which protects us from the blistering, hot days in summer to the dreaded cold days of winter. However, when constructing a building one must ...
Author(s): F. Asdrubali, F. Bianchi, F. D'Alessandro, S. Schiavoni
In this article, the transient plane source technique was used to determine the effect of iron, a flame retardant shape-stabilized phase change material (FSPCM), on the thermal conductivity of a sample of paraffin/high-density polyethylene (HDPE). With the results, it was determined that iron could be dispersed within the HDPE and paraffin samples, so as to improve the flame retardant efficiency. The results also concluded that the thermal conductivity of ...
Author(s): H. Lu, J. Wang, L. Song, P. Zhang, Q. Liu, Y. Hu
Many limitations exist within the development of energy efficient heat transfer fluids; however, low thermal conductivity of these fluids is the main issue. In order to improve the thermal conductivity of these heat transfer fluids, researchers in this study performed strenuous research and ultimately created a new and improved fluid. In this newly designed material, nanoparticles and carbon-nanotubes (CNTs) were suspended within the fluid, aiming to increase the fluids thermal ...
Author(s): F. D. S. Marquis, L. P. F. Chibante
