diff --git a/content/Courses/2024/ARC2047H-Building_Science_Materials_and_Construction_3/ARC2047H-Building_Science_Materials_and_Construction_3.md b/content/Courses/2024/ARC2047H-Building_Science_Materials_and_Construction_3/ARC2047H-Building_Science_Materials_and_Construction_3.md index 43e202f3..1e945c99 100644 --- a/content/Courses/2024/ARC2047H-Building_Science_Materials_and_Construction_3/ARC2047H-Building_Science_Materials_and_Construction_3.md +++ b/content/Courses/2024/ARC2047H-Building_Science_Materials_and_Construction_3/ARC2047H-Building_Science_Materials_and_Construction_3.md @@ -73,11 +73,6 @@ share: true - energy & carbon - -- [x] Jacob new to bambu [completion:: 2024-09-03] -- [ ] One click LCA student license application -- [x] Send demo to dad [completion:: 2024-09-03] -- [x] Readings [due:: 2024-09-04] [completion:: 2024-09-05] [Energy+and+the+Environment+Chapter+1+-+Ristinen+Kraushaar+Brack 2024-09-03 14_49_52.pdf](file:///D:%5COneDrive%20-%20University%20of%20Toronto%5C_twp%5CDocument%5CScholar%5CUTOR%5CArchive%5C2024-09%5CARC2047H%5CFiles%5C01%5CEnergy+and+the+Environment+Chapter+1+-+Ristinen+Kraushaar+Brack%202024-09-03%2014_49_52.pdf) [Thermal+Delight+-+chapter+1+-+Heschong 2024-09-03 14_49_32.pdf](file:///D:%5COneDrive%20-%20University%20of%20Toronto%5C_twp%5CDocument%5CScholar%5CUTOR%5CArchive%5C2024-09%5CARC2047H%5CFiles%5C01%5CThermal+Delight+-+chapter+1+-+Heschong%202024-09-03%2014_49_32.pdf) @@ -327,8 +322,17 @@ Ventilation Factor = 11 - 1.5* ((11-16)/-5) = 9.5 #### Module 07 +[2024+10+14+ARC2047+week+7+slides+v1 2024-10-15 14_11_29.pdf](file:///D:%5COneDrive%20-%20University%20of%20Toronto%5C_twp%5CDocument%5CScholar%5CUTOR%5CArchive%5C2024-09%5CARC2047H%5CFiles%5C07%5C2024+10+14+ARC2047+week+7+slides+v1%202024-10-15%2014_11_29.pdf) +[ARC2047+-+Cross+Ventilation%2C+Degree+Days%2C+Cost+-+Metric+Example 2024-10-15 14_11_35.pdf](file:///D:%5COneDrive%20-%20University%20of%20Toronto%5C_twp%5CDocument%5CScholar%5CUTOR%5CArchive%5C2024-09%5CARC2047H%5CFiles%5C07%5CARC2047+-+Cross+Ventilation%2C+Degree+Days%2C+Cost+-+Metric+Example%202024-10-15%2014_11_35.pdf) +[ARC2047HF+Homework+4+Solutions+-+final 2024-10-15 14_11_40.pdf](file:///D:%5COneDrive%20-%20University%20of%20Toronto%5C_twp%5CDocument%5CScholar%5CUTOR%5CArchive%5C2024-09%5CARC2047H%5CFiles%5C07%5CARC2047HF+Homework+4+Solutions+-+final%202024-10-15%2014_11_40.pdf) +[ARC2047HF+HW5+Self+Study 2024-10-15 14_11_45.pdf](file:///D:%5COneDrive%20-%20University%20of%20Toronto%5C_twp%5CDocument%5CScholar%5CUTOR%5CArchive%5C2024-09%5CARC2047H%5CFiles%5C07%5CARC2047HF+HW5+Self+Study%202024-10-15%2014_11_45.pdf) +[Week 7 study questions.pdf](file:///D:%5COneDrive%20-%20University%20of%20Toronto%5C_twp%5CDocument%5CScholar%5CUTOR%5CArchive%5C2024-09%5CARC2047H%5CFiles%5C07%5CWeek%207%20study%20questions.pdf) + +> [!PDF|yellow] [[./Attachments/2024+10+14+ARC2047+week+7+slides+v1 2024-10-15 14_11_29.pdf#page=4&selection=36,0,53,28&color=yellow|2024+10+14+ARC2047+week+7+slides+v1 2024-10-15 14_11_29, p.4]] +> > qcross ventilation = V × 1.08 Btu·min/(ft3·°F·h) × ∆T q cross ventilation is in units of power (Btu/h) + **Cooling via Cross Ventilation (Natural Ventilation)** -- q_ventilation = V × (heat capacity of air) × ∆T +- q_ventilation (Btu/h) = V (cfm) × heat capacity of air (Btu·min/(ft3·°F·h)) × ∆T (°F) - A unit of power - Requires openings on both sides and wind perpendicular to the opening surface - V: Volumetric flow rate (cfm cubic feet per minute) @@ -338,7 +342,7 @@ Ventilation Factor = 11 - 1.5* ((11-16)/-5) = 9.5 - Bottleneck is the smaller of the two - v = velocity of the wind in feet per minute - 1 mile per hour (mph) = 88 feet per minute (fpm) - - heat capacity of air Btu·min/(ft3·°F·h) = 0.018 Btu/(ft3·°F) × 60 min/h = 1.08 Btu·min/(ft3·°F·h) + - heat capacity of air Btu·min/(ft3·°F·h) = 0.018 Btu/(ft3·°F) × 60 min/h = **1.08 Btu·min/(ft3·°F·h)** - OR heat capacity of air (Btu/(ft3·°F)) = density (pounds per cubic ft) * specific heat of air (Btu/(lb·°F)) - ∆T is temperature difference between inside and outside air - At least 3°F for cross ventilation to be feasible