NDLI: Smart Insulation for Thermal Control in Buildings

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Knotts, Wesley Miller, Danielle Mo, Changki Laura, A. Schaefer William, W. Clark
Copyright Year	2011
Abstract	Buildings are a significant source of energy consumption in the US and worldwide, and conditioning building interiors occupies a major portion of that expenditure. At the building level, a particular scenario can occur where it becomes more advantageous for a structure’s walls to be “open” to the outside, as opposed to remaining “closed”, in an insulating state. For instance, a cool night may follow a hot summer day after the sun sets, but traditional insulation captures heat built up inside a home. A clear, sunny day may also heat a building’s exterior during a cold winter day, and heat transfer to the interior would be more desirable than insulation. This paper presents a study of a concept, termed “smart insulation”, that could be used in such scenarios to take advantage of beneficial thermal gradients in order to save heating and cooling costs. Enabling heat transfer without moving air can also help control humidity within interior spaces, as well as limit noise either from moving air or through open windows. Unlike traditional insulation that maintains a specific insulating value during its useful life, smart insulation changes between an insulating and a conducting state depending on the thermal gradient. Some design concepts have been fabricated and were tested in an insulated chamber that provides a “hot side” and a “cool side”. In the test chamber, temperature measurements were taken and the insulating capacity of each design specimen was calculated. Results indicate that the designs have potential to operate between two states (with the best case ranging from 11% to 61% of a benchmark insulation case) and effectively provide sustainable heating or cooling by capitalizing on ambient outdoor conditions.
Sponsorship	Aerospace Division
Starting Page	703
Ending Page	712
Page Count	10
File Format	PDF
ISBN	9780791854716
DOI	10.1115/SMASIS2011-5007
Volume Number	ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Volume 1
Conference Proceedings	ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
Language	English
Publisher Date	2011-09-18
Publisher Place	Scottsdale, Arizona, USA
Access Restriction	Subscribed
Subject Keyword	Space Insulation Energy consumption Cooling Service life (equipment) Temperature gradient Design Noise (sound) Temperature measurement Heat Heating Sustainability Structures Heating and cooling Heat transfer
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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