Development of a test apparatus to determine thermal properties of rock specimens

J. Nuszkowski, A. Thomas, N. Hudyma, A. Harris

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Understanding thermal properties is necessary for the development of both shallow and deep geothermal systems. Thermal properties can also be used for understanding the development and assessing weathering in a variety of materials. An experimental apparatus has been developed to determine the thermal properties of rock samples. The apparatus consists of a ring heater, aluminum adaptor, and a stainless steel base. Three thermocouples are used to measure heat flow through the base. The rock specimen sits on top of the stainless steel base. Twelve thermocouples, arranged vertically in sets of three at the cardinal positions around the rock sample, are used to measure heat flow through the sample. The apparatus is wrapped in insulation to prevent heat loss. The top of the apparatus is open so a thermal camera can capture the temperature increase at the top of the specimen. Thermal analyses conducted using finite element modeling have verified the design of the apparatus. Two limestone specimens have been tested and experimentally derived thermal conductivities are within experimental ranges of thermal conductivities presented in the literature.

Original languageEnglish
Title of host publication50th US Rock Mechanics / Geomechanics Symposium 2016
Pages284-290
Number of pages7
ISBN (Electronic)9781510828025
StatePublished - 2016
Event50th US Rock Mechanics / Geomechanics Symposium 2016 - Houston, United States
Duration: 26 Jun 201629 Jun 2016

Publication series

Name50th US Rock Mechanics / Geomechanics Symposium 2016
Volume1

Conference

Conference50th US Rock Mechanics / Geomechanics Symposium 2016
Country/TerritoryUnited States
CityHouston
Period26/06/1629/06/16

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