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Pull-Request [TWP-10-22-2024] from Obsidian #170

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Oct 22, 2024
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Pull-Request [TWP-10-22-2024] from Obsidian #170

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PUSH NOTE : Rhino.md
ThinkWithPbody Oct 22, 2024
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PUSH NOTE : ARC2047H-Building_Science_Materials_and_Construction_3.md
ThinkWithPbody Oct 22, 2024
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10 changes: 4 additions & 6 deletions ...ls_and_Construction_3/ARC2047H-Building_Science_Materials_and_Construction_3.md
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Expand Up @@ -548,10 +548,10 @@ For a given building located in Albany, New York the winter balance point temper

![[./Attachments/Lab/Table B1 New York State.jpg|Table B1 New York State]]

![[ARC2047H-Building_Science_Materials_and_Construction_3#^a2dc5f|^a2dc5f]]
[[ARC2047H-Building_Science_Materials_and_Construction_3#^a2dc5f|^a2dc5f]]
T_delta = 33.5 - 2.2 = 31.3
q = 3753 * 31.3 = 117,468.9 Btu
![[ARC2047H-Building_Science_Materials_and_Construction_3#^caf758|^caf758]]
[[ARC2047H-Building_Science_Materials_and_Construction_3#^caf758|^caf758]]
q = 9.789075 tons
V = 9.789075 tons * 400 cfm/ton = 3916 cfm

Expand Down Expand Up @@ -582,8 +582,7 @@ Assume all terminal vent openings have an equal flow rate. Provide your answer i

![[./Attachments/Lab/lab riser diagram A C D E F blank.jpg|lab riser diagram A C D E F blank]]

![[ARC2047H-Building_Science_Materials_and_Construction_3#^2bf58f|^2bf58f]]

[[ARC2047H-Building_Science_Materials_and_Construction_3#^2bf58f|^2bf58f]]
Equivalent Length (ft) = Duct Length + Equivalent Fitting Length = 208.3
Duct Length = A + B=6 + C + D + E + F + G=2= 58.3
Equivalent Fitting Length = 10 + 35 + 35 + 35 + 35 = 150
Expand All @@ -594,15 +593,14 @@ For a given building the acoustic design of the HVAC system is desired to achie

![[./Attachments/Lab/acoustics.jpg|acoustics]]
![[./Attachments/Lab/friction loss chart ASHRAE 2021.jpg|friction loss chart ASHRAE 2021]]
![[./ARC2047H-Building_Science_Materials_and_Construction_3 2024-09-24 14.21.08.svg#^group=oBypA2cO|Courses/2024/ARC2047H-Building_Science_Materials_and_Construction_3/ARC2047H-Building_Science_Materials_and_Construction_3 2024-09-24 14.21.08.excalidraw.md > ^group=oBypA2cO]]
0.013 in. wtr./100ft

---

For a given 3,000 ft2 building (three-story above ground with basement AHU) with the supply ductwork layout shown in the link below **find the pressure loss in the longest duct run** if:
friction loss = 0.074 inches water/100ft
loss at diffuser = 0.04 inches of water
 A = 9.9 feet
A = 9.9 feet
C = 8.2 feet
D = 10 feet
E = 10.6 feet
Expand Down