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R-332 — Feathers

Name: Insulation R Values — feathers: record id 332 · description Domestic duck down; 1 in. · rsi per inch 0.099686 m2K/W/in · r value per inch 0.566044 ft2hF/BTU/in · k w mk 0.2548 W/mK
Creator: Engineering Database

Material Id: Feathers
Record Id: 332
Date: 6/5/1943
Delta T (F): 14.01
Delta X (in): 1.011
Density (lb/ft3): 1
Description: Domestic Duck down; 1 in.
Form: Loose
K W Mk (W/mK): 0.2548
Material: Feathers
Mean Temp (F): 103.67
R Value per Inch (ft2hF/BTU/in): 0.566044
Rsi per Inch (m2K/W/in): 0.099686
Standard: Nist Srd 81 API

Source: NIST SRD 81 API

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feathers — record id 332 · description Domestic duck down; 1 in. · rsi per inch 0.099686 m2K/W/in · r value per inch 0.566044 ft2hF/BTU/in · k w mk 0.2548 W/mK | Insulation R Values | Engineering Database