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Title: Experimental and Numerical Examination of Naturally-Aged Foam-VIP Composites

Abstract

This article describes an aging study of a foam-vacuum insulation panel (VIP) composite insulation board installed on a test wall in a natural exposure test facility through a 30-month period. Silica-based VIPs with a polymeric barrier film were used in this study. The study results showed the effectiveness of a VIP-based insulation to reduce the heat gains and losses through a wall compared to regular rigid foam insulation of the same thickness. However, the long-term performance monitoring indicated a gradual decline in the thermal performance of the foam-VIP composite. In addition, one-dimensional numerical models were created to simulate the in situ behavior of the foam-VIP composite. One model utilized constant thermal conductivities of the test wall components and another utilized temperature-dependent thermal conductivities; the latter used measurements of conductivity over temperatures ranging from −15 to 55 °C. The results of the simulations emphasized the need to use both temperature and time-dependent material properties for accurately predicting the long-term performance of VIP-based insulation systems.

Authors:
ORCiD logo; ORCiD logo;
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1530631
Alternate Identifier(s):
OSTI ID: 1545206
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Published Article
Journal Name:
Energies
Additional Journal Information:
Journal Name: Energies Journal Volume: 12 Journal Issue: 13; Journal ID: ISSN 1996-1073
Publisher:
MDPI AG
Country of Publication:
Switzerland
Language:
English
Subject:
36 MATERIALS SCIENCE; 42 ENGINEERING; 54 ENVIRONMENTAL SCIENCES

Citation Formats

Biswas, Kaushik, Jogineedi, Rohit, and Desjarlais, Andre. Experimental and Numerical Examination of Naturally-Aged Foam-VIP Composites. Switzerland: N. p., 2019. Web. doi:10.3390/en12132539.
Biswas, Kaushik, Jogineedi, Rohit, & Desjarlais, Andre. Experimental and Numerical Examination of Naturally-Aged Foam-VIP Composites. Switzerland. doi:10.3390/en12132539.
Biswas, Kaushik, Jogineedi, Rohit, and Desjarlais, Andre. Tue . "Experimental and Numerical Examination of Naturally-Aged Foam-VIP Composites". Switzerland. doi:10.3390/en12132539.
@article{osti_1530631,
title = {Experimental and Numerical Examination of Naturally-Aged Foam-VIP Composites},
author = {Biswas, Kaushik and Jogineedi, Rohit and Desjarlais, Andre},
abstractNote = {This article describes an aging study of a foam-vacuum insulation panel (VIP) composite insulation board installed on a test wall in a natural exposure test facility through a 30-month period. Silica-based VIPs with a polymeric barrier film were used in this study. The study results showed the effectiveness of a VIP-based insulation to reduce the heat gains and losses through a wall compared to regular rigid foam insulation of the same thickness. However, the long-term performance monitoring indicated a gradual decline in the thermal performance of the foam-VIP composite. In addition, one-dimensional numerical models were created to simulate the in situ behavior of the foam-VIP composite. One model utilized constant thermal conductivities of the test wall components and another utilized temperature-dependent thermal conductivities; the latter used measurements of conductivity over temperatures ranging from −15 to 55 °C. The results of the simulations emphasized the need to use both temperature and time-dependent material properties for accurately predicting the long-term performance of VIP-based insulation systems.},
doi = {10.3390/en12132539},
journal = {Energies},
number = 13,
volume = 12,
place = {Switzerland},
year = {2019},
month = {7}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.3390/en12132539

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