Presentation is loading. Please wait.

Presentation is loading. Please wait.

Date of download: 12/25/2017 Copyright © ASME. All rights reserved.

Similar presentations


Presentation on theme: "Date of download: 12/25/2017 Copyright © ASME. All rights reserved."— Presentation transcript:

1 Date of download: 12/25/2017 Copyright © ASME. All rights reserved. From: Analysis of the Transient Hot-Wire Method to Measure Thermal Conductivity of Silica Aerogel: Influence of Wire Length, and Radiation Properties J. Heat Transfer. 2014;136(4): doi: / Figure Legend: Typical plot of hot-wire temperature rise versus the log of time

2 Date of download: 12/25/2017 Copyright © ASME. All rights reserved. From: Analysis of the Transient Hot-Wire Method to Measure Thermal Conductivity of Silica Aerogel: Influence of Wire Length, and Radiation Properties J. Heat Transfer. 2014;136(4): doi: / Figure Legend: Schematic of hot-wire (Pt wire) embedded in the material

3 Date of download: 12/25/2017 Copyright © ASME. All rights reserved. From: Analysis of the Transient Hot-Wire Method to Measure Thermal Conductivity of Silica Aerogel: Influence of Wire Length, and Radiation Properties J. Heat Transfer. 2014;136(4): doi: / Figure Legend: Aerogel sample with hot-wire embedded

4 Date of download: 12/25/2017 Copyright © ASME. All rights reserved. From: Analysis of the Transient Hot-Wire Method to Measure Thermal Conductivity of Silica Aerogel: Influence of Wire Length, and Radiation Properties J. Heat Transfer. 2014;136(4): doi: / Figure Legend: Because the copper wire (254 μm diameter) is an order of magnitude larger than the platinum wire (25 μm) and because the hot-wire test is so short, we assume that the copper wire does not change temperature and is effectively a heat sink

5 Date of download: 12/25/2017 Copyright © ASME. All rights reserved. From: Analysis of the Transient Hot-Wire Method to Measure Thermal Conductivity of Silica Aerogel: Influence of Wire Length, and Radiation Properties J. Heat Transfer. 2014;136(4): doi: / Figure Legend: Schematic of a fin used to model the hot-wire and correction for end effects

6 Date of download: 12/25/2017 Copyright © ASME. All rights reserved. From: Analysis of the Transient Hot-Wire Method to Measure Thermal Conductivity of Silica Aerogel: Influence of Wire Length, and Radiation Properties J. Heat Transfer. 2014;136(4): doi: / Figure Legend: Predicted temperature distribution along the length of the hot-wire due to end effects for silica aerogel with a platinum wire at time is 0.5 s and 1.0 s

7 Date of download: 12/25/2017 Copyright © ASME. All rights reserved. From: Analysis of the Transient Hot-Wire Method to Measure Thermal Conductivity of Silica Aerogel: Influence of Wire Length, and Radiation Properties J. Heat Transfer. 2014;136(4): doi: / Figure Legend: Experimental results for a test between 0.5 s and 1.0 s showing the end effect correction and the linear fit to the test results

8 Date of download: 12/25/2017 Copyright © ASME. All rights reserved. From: Analysis of the Transient Hot-Wire Method to Measure Thermal Conductivity of Silica Aerogel: Influence of Wire Length, and Radiation Properties J. Heat Transfer. 2014;136(4): doi: / Figure Legend: NIST SRM 1459 experiment and corrected thermal conductivity


Download ppt "Date of download: 12/25/2017 Copyright © ASME. All rights reserved."

Similar presentations


Ads by Google