PHIUS WITH 100- SURE ANSWERS

10/27/24, 10:05 PM PHIUS Flashcards | Quizlet



EUNICE




PHIUS
2WITH 100% SURE ANSWERS
You are performing an energy model of a 35.7 kBTU/sf.yr
house intended for four inhabitants. There
are 5 bedrooms and the interior
conditioned floor area is 2200 s.f. PHIUS
requires a Primary Energy limit of 3840
kWh/person.yr for certification. What is the
Specific Primary Energy limit for this
house?

An architect on a passive house project 58.59 °F
team in Chicago proposes glazing units
with R-5 (U-0.2) glazing. Chicago's ASHRAE
99% design temperature is 4.4°F. What will
the interior surface temperature of the
glazing be at that design temperature?
Round as needed to two (2) places for your
final result. Do not add surface films to the
given R-value of the glazing.

A window has the following attributes Uw installed = 0.140 BTU/hr.ft2 .F
Uglazing = 0.09 Btu/hr.ft2 .°F
Uframe = 0.14 Btu/hr.ft2 .°F
Window Width = 3ft
Window Height = 5ft
Frame Thickness = 3in
Psi spacer = 0.023 Btu/hr.ft .°F
Psi install = 0.015 Btu/hr.ft .°F
Calculate installed U value of the window
(Uw-installed). Do NOT use rounding
during the calculation. Round manually to
the 3rd decimal place for the result. (Select
the Best Answer)




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