Oven(1) - Angle of window to ground, β Reflectivity, u...

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Design Variables Units 43 degrees 47 degrees Window length*, L 10 cm Window width**, W 10 cm Shoretest chamber depth***, d 10 cm M/L Reflector ratio 2 Alpha (angle of sun to reflector) 21.47 degrees # of reflectors, n 1 * Window length is at angle beta ** Window width is "into the page" as drawn in yellow book *** If box-shaped chamber, then depthis constant, if trapezoid c Outside of your control Units Solar power density, Io 1000 W/m^2 Ambient temperature, Tamb 21 deg c Design variable look up Units Heat Txfr Coeff for side/bottom, Usb 1.3 W/(C*m^2) Absorbitivity, a 0.9 Transmissivity, t 0.92 0.7 Calculated Units Oven chamber volume (Measured) 931.4 cm^3 Window area, Ag 100 cm^2 Sides and bottom area, Asb (Measured) 158 cm^2 Gain from reflector, G 1.51 ENGR 102 / Section 2 / Team #3 Brian Hochheim Mona Eskandri Antuon Lopez William Morse Anthony Cordisco Angle of sun to ground, θs
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Unformatted text preview: Angle of window to ground, β Reflectivity, u Constraints Ug Look Up Results b/h 0 and 180 Tio table Ug Ti greater than 0 Single Double Single 66 10.1 4.88 124.03 93 13.9 6.69 99.49 121 18.66 8.96 81.46 b/h 0 and 3 149 24.34 11.74 68.45 depends on M/L: need to calc and enter manually 177 31.6 15.2 58.21 b/h 0 and 4 204 40.11 19.35 50.7 chamber, this is the shortest depth ← look up value from book, pg 117 ← look up value from book, pg 117 ← look up value from book, pg 116 ← look up value from book, pg 116 Constraints greater than 1000 cm^3 5 10 15 20 25 30 35 50 100 150 200 250 Single Window Ug Tio 4 6 8 10 12 14 16 1 50 100 150 200 250 Double Window Ug io Double 201.6 164.22 134.7 111.78 93.58 79.51 40 45 Column G Column J 8 20 22 Column G Column K...
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This note was uploaded on 04/02/2008 for the course ENGR 101 taught by Professor Ogden during the Fall '07 term at University of Arizona- Tucson.

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Oven(1) - Angle of window to ground, β Reflectivity, u...

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