1. Calculate the overall heat-transfer coefficient (U=?) for a frame construction wall made of brick veneer (120-lbm/ft³) with 3-in. fiberglass insulation bats between the 2x4 wood studs (softwood) that are 16-in. on center. The wind velocity is 15-mph. Fill out the table below also utilizing materials data from the textbook. Also, calculate the total heat loss if the referenced wall was 9-ft tall and 35-ft in length set in Ohio, Clevland @ 99% winter OAT with an indoor setpoint of 75°F. Hint: 2x4 wood studs are 16-in. on center and 2-in. thick by 4-in. deep thus the empty space between each stud is 14-in. Remember use R = L/K & R = 1/C for materials. Between Frame (R-Value) At Framing (R-Value) Outside Surface 4-in. Face Brick (k=middle value) 12-in. Sheathing reg. density 3-in. Insulation Batt 2"x4" Wood Studs (k=middle value) 1/2-in. Gypsum Board Inside Surface Total (R-Value): U= Btu/(hr-ft²°F)

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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1. Calculate the overall heat-transfer coefficient (U=?) for a frame construction
wall made of brick veneer (120-lbm/ft³) with 3-in. fiberglass insulation bats
between the 2x4 wood studs (softwood) that are 16-in. on center. The wind
velocity is 15-mph. Fill out the table below also utilizing materials data from the
textbook. Also, calculate the total heat loss if the referenced wall was 9-ft tall
and 35-ft in length set in Ohio, Clevland @ 99% winter OAT with an indoor
setpoint of 75°F.
Hint: 2x4 wood studs are 16-in. on center and 2-in. thick by 4-in. deep
thus the empty space between each stud is 14-in. Remember use R =
L/K & R = 1/C for materials.
Between Frame (R-Value) At Framing (R-Value)
Outside Surface
4-in. Face Brick (k=middle
value)
1/2-in. Sheathing reg. density
3-in. Insulation Batt
2"x4" Wood Studs (k=middle
value)
1/2-in. Gypsum Board
Inside Surface
Total (R-Value):
● U =
● Q=
Btu/(hr-ft²-F)
Btu/h Heat Loss
Transcribed Image Text:1. Calculate the overall heat-transfer coefficient (U=?) for a frame construction wall made of brick veneer (120-lbm/ft³) with 3-in. fiberglass insulation bats between the 2x4 wood studs (softwood) that are 16-in. on center. The wind velocity is 15-mph. Fill out the table below also utilizing materials data from the textbook. Also, calculate the total heat loss if the referenced wall was 9-ft tall and 35-ft in length set in Ohio, Clevland @ 99% winter OAT with an indoor setpoint of 75°F. Hint: 2x4 wood studs are 16-in. on center and 2-in. thick by 4-in. deep thus the empty space between each stud is 14-in. Remember use R = L/K & R = 1/C for materials. Between Frame (R-Value) At Framing (R-Value) Outside Surface 4-in. Face Brick (k=middle value) 1/2-in. Sheathing reg. density 3-in. Insulation Batt 2"x4" Wood Studs (k=middle value) 1/2-in. Gypsum Board Inside Surface Total (R-Value): ● U = ● Q= Btu/(hr-ft²-F) Btu/h Heat Loss
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