Practice Calculations Quiz 2_ Misc Calculation Review WITH 100- SURE ANSWERS

10/27/24, 10:08 PM Practice Calculations Quiz 2: Misc Calculation Review Flashcards | Quizlet



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Practice Calculations Quiz 2: Misc Calculation Review
WITH 100% SURE ANSWERS
During July the average temperature for a 667.97 kBtu net gains
hypothetical location is 91.9F, with a peak of increase of 0.16 BTU/ft2.hr
93F. A PH project has the following
conditions: The gross floor area is 2200 ft2,
with an iCFA of 2000 ft2. The east and west
facades each have two 30ft2 windows with
an R-value of 5 and SHGC of 0.3. Add the
appropriate interior and exterior surface
film coefficients to the window R-value
provided.The July solar radiation is 25.7
kBtu/ft2 for the east and 25.7 kBtu/ft2 for
the west. 35% of the solar radiation is
prevented from reaching the windows by
shading from surrounding trees and
neighboring buildings. Dirt on the glass
causes a further reduction of 5% in solar
radiation and once non-perpendicular
radiation is taken into account, an
additional reduction occurs that only
permits 85% of the remaining solar
radiation through. The glazing area (Ag) for
east and west facades is 55 ft2 each.
Taking into account transmission heat l




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