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Does anybody have a link to a solar radiation key for cities. Need to calculate 41, 47, and 51 deg C solar radition = qsolar. thanks

Used a quartic equation solver. Using h value = 8 reduces the surface temp to 67.9 deg C.

I can not solve the equation when I use 8 for h, slight breeze. Any ideas? thanks

what does omega stand for in the equation?

How about internal? I used Hoffman's caluclation program and the internal was 132 deg F. That sounds low.

Thanks. I used the example on page 577. I assumed no wind so the h value is 0, alpha for white = .26, e for white =.9. sky temp = 60 deg C, qsolar = 1120 w/m^2. Calculated 93 deg C. Sounds right? thanks

Surface area of Box is 30 x 8 x 8ft, contains helium. Assume worst case, so no wind and direct sunlight-no shade. Box is stored outside at 110F, relative humidity 70%-worst case. Use stainless-301, assume 0.5 emissivity. I need the formulas and source to change variables and compute the...

Assuming worst case; the military 99-percentile, the standard value is 1120 W/m^2. Surface is painted white so, the radiation absorpity is 0.14. What is the temperature increase on the surface? Assuming the object is at ambient temperature.