Article
Version 1
Preserved in Portico This version is not peer-reviewed
Experimental Thermal Conductivity Measurement of Hollow Structure Polypropylene Material By DTC-25 and Hot Box Test
Version 1
: Received: 22 November 2023 / Approved: 23 November 2023 / Online: 23 November 2023 (05:01:56 CET)
A peer-reviewed article of this Preprint also exists.
Osaze, O.; Khanna, S. Experimental Thermal Conductivity Measurement of Hollow-Structured Polypropylene Material by DTC-25 and Hot Box Test. Buildings 2023, 13, 3094. Osaze, O.; Khanna, S. Experimental Thermal Conductivity Measurement of Hollow-Structured Polypropylene Material by DTC-25 and Hot Box Test. Buildings 2023, 13, 3094.
Abstract
Experimental measurement of porous polypropylene (PP) using the DTC-25 TA laboratory equipment and hot box test has been compared. The thermal conductivity of materials indicates the insulation capability of building materials. Excellent building materials will have a lower thermal conductivities value as well as other building insulator performance metrics. While results show that increasing the volume fraction of fluid in the porous PP has an inverse association with the thermal conductivity of the material as predicted by porous media theories, there is a marked difference in the measured values of the thermal conductivity using the two methods. The thermal conductivity values of porous from DTC-25 and hot box test were 0.21 and 0.0033 W/mK, respectively. The difference in the thermal conductivity values was due to the misapplication of the Fourier’s guarded heat flow model in the DTC-25 device to a convective fluid porous medium material.
Keywords
Thermal conductivity; polypropylene; hollow structure; DTC-25; Hot Box; Rayleigh number; heat flux sensor
Subject
Engineering, Energy and Fuel Technology
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Comments (0)
We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.
Leave a public commentSend a private comment to the author(s)
* All users must log in before leaving a comment