| Download | - View final version: A guarded hot box procedure for determining the dynamic response of full-scale wall specimens - Part I (PDF, 8.8 MiB)
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| Author | Search for: Brown, W. C.1; Search for: Stephenson, D. G. |
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| Affiliation | - National Research Council of Canada. NRC Institute for Research in Construction
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| Format | Text, Article |
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| Subject | Walls; Heat Transfer; Moisture performance; Murs; Transfert de chaleur |
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| Abstract | ASHRAE Research Project 515 had the goal of producing measured values of the dynamic heat transmission characteristics of walls. The characteristics were measured in a guarded hot box facility. The facility, which conforms in general to that standardized by ASTM C236, measuresheat transfer through a 2440 mm X 2440 mm (8ft X 8ft) test area. Calorimeter temperatures are controllable between l6°C and 26°C (60°F and 80°F), and cold-side temperatures are controllable between 0°C and -40°C (32 °F and -40°F). Data acquisition and control are provided through a laboratory computer system. Dynamic calibration of the guarded hot box facility wasrequired before it could be used to measure dynamic heat transmission characteristics. This calibration was developed from first principles and supported by measurements of a 102 mm (4 in.) thick expanded polystyrene specimen whose thermal characteristics had been determined from measurements of material properties. To measure the dynamic heat transmission characteristics of wall specimens, a test and data reduction procedure was also developed from first principles. The validity of this procedure was confirmed with measurements of the dynamic heat transmission characteristics of a 203 mm (8 in.) thick cement mortar -- specimen whose thermal characteristics were determined from measurements of material properties. |
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| Publication date | 1993 |
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| In | |
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| Note | Paper presented at the ASHRAE Winter Meeting held in Chicago, IL, USA, January 23-27, 1993 |
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| Language | English |
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| Peer reviewed | Yes |
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| Identifier | IRC-P-1786 |
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| NRC number | NRCC 34002
NRC-IRC-1902 |
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| NPARC number | 20377051 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 43772b59-1fb6-4bc4-bd58-df0106bde486 |
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| Record created | 2012-07-24 |
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| Record modified | 2020-06-06 |
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