Btu ft2 to w m2
[DOCX File]SECTION 086270 - TUBULAR UNIT SKYLIGHTS
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[White Laminated with 0.030 inch (0.76 mm) Interlayer: 0.48 Btu/hr*ft2*deg F (2.73 W/m2*deg C).] Solar Heat-Gain Coefficient (SHGC): NFRC 200 maximum SHGC: [Clear Laminated with …
[DOC File]California State University, Northridge
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Both blocks are initially at 20oC and are made of granite (k = 2.5 W/m·oC and = 1.15x10-6 m2/s). Now both blocks are exposed to hot gases at 500oC in a furnace on all of their surfaces with a heat transfer coefficient of 40 W/m2·oC. Determine the center temperature of each geometry after 10, 20, and 60 min.
[DOC File]Chapter 2
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(0.933 Btu/ft2 h)(700C – ti) = (0.075 Btu/ft2 h)(ti + 150F) Solving for ti, we obtain: ti = 63.70F. The heat conducted per square foot is the same. Suppose we choose the concrete, then; H/A = 5.92 Btu/ft2 h. After some time the heat per unit area per unit of time is the same throughout the wall. *18-27.
[DOCX File]Microsoft Word - 3_part_spec_FGBI with highlights.doc
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Critical Radiant Flux (ASTM E970): Greater than 0.11 Btu/ft2 × s (0.12 W/cm2). Water Vapor Permeance (ASTM E96): [0.05 perm (2.9 ng/Pa × s × m2) for foil faced] [1.0 perm (57.5 ng/Pa × s × m2…
[DOC File]Solar radiation unit conversions - USDA
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1 Langley = 41868 Joules/m2 (see Conversion Sequence 2) 1 Langley = 41868 Watt-sec/m2 (see Conversion Sequence 2) 1 Watt/cm2 = 3170 BTU/ft2-hour (see Conversion Sequence 3) 1 Watt/m2 = 0.3170 BTU/ft2-hour (see Conversion Sequence 3) 1 Langley/day = 0.484583 Watt/m2 …
[DOC File]CHE 425
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The overall U = 350 W/m2(oK and area A = 12.9 m2. Calculate the heat transfer rate and the exit oil temperature. Ans: 1.534(105 W, Tco = 377.3oK, Tho = 373.4oK. 4. (Ref. 2) In a single-pass counterflow heat exchanger, 10,000 lb/hr of water enters at 60oF and cools 20,000 lb/hr of oil having a specific heat of 0.50 Btu/lb(oF from 200oF to 150oF.
[DOC File]SECTION 08460 - Stanley Access
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U-Factor Summer Day-Time: [0.27] BTU/hr-ft2-°F (1.56 W/m2-°K) U-Factor Winter Night-Time: [0.29] BTU/hr-ft2-°F (1.68 W/m2-°K) SHGC: [0.12 – 0.40] VT: [15 – 74] Percent Headers: Fabricated from extruded aluminum and extending full width of automatic entrance door units to conceal door operators, carrier assemblies, and roller tracks ...
[DOC File]SECTION 13-100
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The inverse of the time rate of heat flow through a body from one of its bounding surfaces to the other surface for a unit temperature difference between the two surfaces, under steady state conditions, per unit area (h ft2 °F/Btu) [(m2 K)/W].
ACI 122R-02
C = thermal conductance expressed as Btu/(hr ( ft2 ( oF) [W/(m2 ( K)] – specific property of a gas, liquid, or solid is a measure of the rate at which heat (energy) passes perpendicularly through a unit area of material of specified thickness for a temperature difference of one degree.
[DOC File]California State University, Northridge
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The house is maintained at 80°F and the ambient temperature outside is 30°F. Taking the heat transfer coefficients at the inner and outer surfaces of the wall to be 1.5 Btu/h·ft2·°F and 4 Btu/h·ft2·°F, respectively, determine the rate of heat transfer through the wall constructed of (a) solid bricks and (b) bricks with air holes.
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