Please use this identifier to cite or link to this item:
https://hdl.handle.net/11681/9379
Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Flanders, Stephen N. | - |
dc.date.accessioned | 2016-06-20T13:41:35Z | - |
dc.date.available | 2016-06-20T13:41:35Z | - |
dc.date.issued | 1980-06 | - |
dc.identifier.uri | http://hdl.handle.net/11681/9379 | - |
dc.description | CRREL Report | - |
dc.description | Abstract: This report discusses the time constraints on measuring the thermal resistance (R-value) of building components. Temperature changes on either side of a building component perturb measurement accuracy. Long measurement times and measurement times corresponding to a consistent diurnal cycle can be satisfactory; however, individual temperature changes cause significant error for shorter measurement periods. This report shows how to scale the thermal properties of individual constituent materials in a building element to determine its characteristic thermal time constant. The report then demonstrates the size of measurement error resulting from a variety of changes in temperature with representative walls of different time constants. | - |
dc.publisher | Cold Regions Research and Engineering Laboratory (U.S.) | - |
dc.publisher | Engineer Research and Development Center (U.S.) | - |
dc.relation | http://acwc.sdp.sirsi.net/client/en_US/search/asset/1024731 | - |
dc.relation.ispartofseries | CRREL report ; 80-15. | - |
dc.rights | Approved for public release; distribution is unlimited. | - |
dc.source | This Digital Resource was created from scans of the Print Resource | - |
dc.subject | Cold regions engineering | - |
dc.subject | Construction materials | - |
dc.subject | Measurement | - |
dc.subject | Time dependence | - |
dc.subject | Thermal resistance | - |
dc.subject | Thermal properties | - |
dc.subject | Building materials | - |
dc.title | Time constraints on measuring building R-values | - |
dc.type | Report | en_US |
Appears in Collections: | CRREL Report |
Files in This Item:
File | Description | Size | Format | |
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CR-80-15.pdf | 1.51 MB | Adobe PDF | View/Open |