The transient hot wire method was used to measure the thermal conductivity of the following polyatomic gases: hydrogen, nitrogen, carbon monoxide and methane. The measurements occurred in the range from 0.8-10 MPa, at 35 degrees Celsius, and have an estimated uncertainty of ±0.2%....
This article describes an attempt to modify the transient line source probe to be useful in making in-situ measurements in the field. The field of construction, as well as many others would benefit if a new thermal probe could be applied to uncontrolled environments. Three case study buildings have been considered to ascertain the validity and reliability of this new technique in ...
Previously, the thermal conductivity of extruded monoliths, ceramic foams and metal structures were determined for their application as open volumetric receivers in concentrated solar radiation. Volumetric receivers contain a porous material, which is ultimately heated through solar radiation. The pores allow ambient air flow through the material, which will eventually reach a temperature of 700˚C. This heat is then used to feed the steam turbine process. Understanding the effect of ...
