Thermal Analysis Labs regularly offers FREE online seminars – or “webinars” – to provide information on new applications.
The webinar is a combination of a live PowerPoint show presented over the Internet, and a conference call with participants. Please browse our listing of live upcoming webinars below or check our library of past archived webinar recordings.
Advance registration is required.
|October 13, 2017||11:00 am EST||Highlights from NATAS 2017|
Highlights from NATAS 2017
|Determination of Rocks Thermal Conductivity for Shallow Geothermal Application: From Laboratory Scale to Thematic Maps Generation for Some Italian Case Studies
In shallow geothermal energy, the characterization of the thermal properties of rocks is fundamental in order to assess the ability of the ground to exchange heat for building conditioning.
In fact, the performance of Ground Source Heat Pump System (GSHP) depends on both heating/cooling building loads and site-related settings. For this reason, a reliable geological and hydrogeological characterization of the ground is required. Thermal conductivity is a key parameter to properly dimensioning low enthalpy geothermal systems by numerical modeling and a direct thermal measurement performed on representative specimens is necessary to give real data to planners, public administrations and operators involved in the geothermal sector.
|Reference Materials for Thermal Effusivity
Quality initiatives, such as ISO 17025, require apparatus calibration using certified and traceable reference materials. However, there are no certified reference materials for thermal effusivity. In this absence, an attempt is underway to obtain the” best available” thermal effusivity values for a series of reference materials using measurements of thermal conductivity, thermal effusivity, specific heat capacity, and density. Progress is reviewed by comparing the values obtain by two different methods.
|Theoretical, Computational, and Experimental Validation of the Modified Transient Plane Source (MTPS) Method
The Modified Transient Plane Source (MTPS) method of thermal conductivity and thermal effusivity analysis is a method of transient thermal conductivity and thermal effusivity testing with growing popularity owing to its short test times and single-sided, interfacial configuration. Previously, work has been published detailing theoretical and experimental application of this method to thermal conductivity testing of liquids, powder uniformity, and other materials. This work expands upon the previous work. It includes details on the physical basis for the MTPS model, physical simulations to confirm fundamental assumptions about one-dimensional heat flow through test samples including foams, glasses, ceramics, and metals, and model and simulation validation with experimental data.
Date: October 13, 2017 at 11:00 am EST