(Solved): Given: A wall section has been constructed as shown in the drawing to the right. Assume that the int ...
Given: A wall section has been constructed as shown in the drawing to the right. Assume that the interior temperature,
T_(i), is
70\deg Fand that the outside temperature,
T_(o), is
23\deg F. The wall components are as shown below. Required: Find the weighted average overall coefficient of heat transfer,
U_(eff ), of this wall section due to the thermal bridging of the wood studs. Estimate the weighted value to two decimals. Estimate all R-values to two decimals. Calculate the sensible heat loss {Btuh} through this 10' high by
42^(')long exterior wall. Watch the units. (
q=UA\Delta T) where
U=U-factor,
A=wall area,
T=temperature Complete the Table with the required R -values. Provide the answers rounded to two decimal places. Your units will be (
hft\deg (F)/(b)tu) - do not include the units in your answer Do not forget to add leading zeros (e.g. 0.03 , not .03 ) if your value requires it. Canvas will mark the answer as incorrect if it is missing. Provide your answers to '
U=' rounded to three decimal places \table[[Ref.,Component Description,\table[[Thermal],[Property]],Path through insulation,Path through studs],[---,outside air film (winter),Tbl. E. 3,,],[A,
^('')Stucco (
100l(b)/(f)t^(3)),Tbl. E. 1,,],[B,\table[[
(1)/(8^(''))building membrane],[vapor - permeable felt]],Tbl. E. 1,
?,
?
