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1) A wall consists of i inch of gypsum plaster on cork- board insulation 1 inch...
Wall assembly 3 has the following components: Inside air film 0.5 inch gypsum board 5.5 inch...
Wall assembly 3 has the following components: Inside air film 0.5 inch gypsum board 5.5 inch insulation (?) 0.5 inch OSB (Oriented Strand Board) 1 inch stucco Outside air film The building code requires a maximum U-Value of 0.0436 for the wall assembly. What is the minimum R-Value required for the insulation to meet code?
1. A house has a composite wall of wood, fiberglass insulation, and plaster board, as indicated...
1. A house has a composite wall of wood, fiberglass insulation, and
plaster board, as indicated below. On a cold winter day the
convection heat transfer coefficients are ho
=
60 W/m2K
and hi
=
30 W/m2K.
The total wall surface area is 350 m2.
(a) Determine the heat transfer rate through the wall in
Watts.
(b) If the wind were blowing violently, raising ho
to 300 W/m2K,
determine the percentage
increase in the heat transfer rate.
(c) What is...
Consider the following composite wall of a building. It is made out of plaster board (Lp...
Consider the following composite wall of a building. It is made out of plaster board (Lp 0.85 W/mK), glass fibre insulation (Lb-160 mm, k = 0.050 W/mK) and plywood (1,-40 m m, k = 0.70 W/mK) as shown below. On a certain day, the convective heat transfer coefficients inside and outside of the building are 35 W/m2K and 65 W/m2 K respectively. The inside and outside temperatures are 24°C and 36°C respectively. The wall has a total surface area of...
A house has a composite wall of wood, fiberglass insulation, and plaster board, as indicated in...
A house has a composite wall of wood, fiberglass insulation, and
plaster board, as indicated in the sketch. On a cold day, the
temperature and the convection heat transfer coefficients are T∞,i
=20°C, hi =30 W/m2K and T∞,o=−15°C, ho =60 W/m2K. The wall surface
area is 350 m2. Determine the total heat loss through the wall.
Conductivities are given as b k =0.038 W/m.K, s k =0.012 W/m.K, p k
=0.17 W/m.K
Glass fiber blanket (28 kg/m3), kn Plaster board,...
Consider a composite wall that includes an 8-mm-thick hardboard siding, 40-mm by 130-mm hardwood studs on...
Consider a composite wall that includes an 8-mm-thick hardboard siding, 40-mm by 130-mm hardwood studs on 0.65-m centers with glass fiber insulation (paper faced, 28 kg/m3 ), and a 12-mm layer of gypsum (vermiculite) wall board. What is the thermal resistance associated with a wall that is 2.5 m high by 6.5 m wide (having 10 studs, each 2.5 m high)? Assume surfaces normal to the x-direction are isothermal. Wood siding Stud Insulation Wall board Rtot K/W
Problem 3.014 Consider a composite wall that includes an 8-mm-thick hardwood siding, 40-mm by 100-mm hardwood...
Problem 3.014 Consider a composite wall that includes an 8-mm-thick hardwood siding, 40-mm by 100-mm hardwood studs on 0.65-m centers with glass fiber insulation (paper faced, 28 kg/m), and a 12-mm layer of gypsum (vermiculite) wall board. What is the thermal resistance associated with a wall that is 2.5 m high by 6.5 m wide (having 10 studs, each 2.5 m high)? Assume surfaces normal to the x-direction are isothermal. Wood siding Stud Insulation Wall board Rtot K/W Physical Properties...
I need MATLAb programming for above example . Ido not want ay theory or numerical explaination...
I need MATLAb programming for above example . Ido not want ay
theory or numerical explaination
8. In order to increase the thermal resistance of a typical exterior frame wall, such as the one in Example 1.2, t is customary to use 2 × 6 studs instead of 2 × 4 studs to allow for place ment of more insulation within the wall cavity. A typical exterior (2 X 6) frame wall of a house consists of the materials shown...
1) A frame wall of the bedroom of a house has the following specifications: – Wall:...
1) A frame wall of the bedroom of a house has the following specifications: – Wall: 12 ft. by 8 ft., wood siding, wood sheathing, 2 in. of insulation with R-7 value, and inside finish – Window: 3 ft. by 4 ft. 6 in., single glass, aluminum frame The room temperature is 68º F and the outdoor temperature is 2º F. What is the heat transfer through the total assembly (wall and window combined)? 2) Consider a 1 ft ×...
PLease calculate the question about condensation in building (d) A wall consists of 15mm dense plaster...
PLease calculate the question about condensation in
building
(d) A wall consists of 15mm dense plaster (1), 100 medium weight concrete blockwork (2), 40mm glass fiber quilt (3), a 10mm air space (4) and 105mm brickwork (5). The composition of the wall is shown in Figure 1. In a winter day, the indoor air temperature and relative humidity are maintained at 20°C and 60% while the outdoor air temperature is 0°C. The vapor resistivities of the wall components are shown...
A 100 ft2 wall consists of 4 in of red brick (k = 0.38 Btu-ft/hr-ft-°F), 1...
A 100 ft2 wall consists of 4 in of red brick (k = 0.38 Btu-ft/hr-ft-°F), 1 inch of pine (k = 0.06 Btu-ft/hr- ft-°F) and 42 inch of plaster board (k = 0.30 Btu-ft/hr-ft-°F). The internal and external film heat transfer coefficients are 1.65 Btu/hr-ft-°F and 6.00 Btu/hr-ft-'F respectively. The inside and outside air temperatures are 72 °F and 30 °F respectively. The heat transfer rate is:
1. A house has a composite wall of wood, fiberglass insulation, and
plaster board, as indicated below. On a cold winter day the
convection heat transfer coefficients are ho
=
60 W/m2K
and hi
=
30 W/m2K.
The total wall surface area is 350 m2.
(a) Determine the heat transfer rate through the wall in
Watts.
(b) If the wind were blowing violently, raising ho
to 300 W/m2K,
determine the percentage
increase in the heat transfer rate.
(c) What is...
Consider the following composite wall of a building. It is made out of plaster board (Lp 0.85 W/mK), glass fibre insulation (Lb-160 mm, k = 0.050 W/mK) and plywood (1,-40 m m, k = 0.70 W/mK) as shown below. On a certain day, the convective heat transfer coefficients inside and outside of the building are 35 W/m2K and 65 W/m2 K respectively. The inside and outside temperatures are 24°C and 36°C respectively. The wall has a total surface area of...
A house has a composite wall of wood, fiberglass insulation, and
plaster board, as indicated in the sketch. On a cold day, the
temperature and the convection heat transfer coefficients are T∞,i
=20°C, hi =30 W/m2K and T∞,o=−15°C, ho =60 W/m2K. The wall surface
area is 350 m2. Determine the total heat loss through the wall.
Conductivities are given as b k =0.038 W/m.K, s k =0.012 W/m.K, p k
=0.17 W/m.K
Glass fiber blanket (28 kg/m3), kn Plaster board,...
Consider a composite wall that includes an 8-mm-thick hardboard siding, 40-mm by 130-mm hardwood studs on 0.65-m centers with glass fiber insulation (paper faced, 28 kg/m3 ), and a 12-mm layer of gypsum (vermiculite) wall board. What is the thermal resistance associated with a wall that is 2.5 m high by 6.5 m wide (having 10 studs, each 2.5 m high)? Assume surfaces normal to the x-direction are isothermal. Wood siding Stud Insulation Wall board Rtot K/W
Problem 3.014 Consider a composite wall that includes an 8-mm-thick hardwood siding, 40-mm by 100-mm hardwood studs on 0.65-m centers with glass fiber insulation (paper faced, 28 kg/m), and a 12-mm layer of gypsum (vermiculite) wall board. What is the thermal resistance associated with a wall that is 2.5 m high by 6.5 m wide (having 10 studs, each 2.5 m high)? Assume surfaces normal to the x-direction are isothermal. Wood siding Stud Insulation Wall board Rtot K/W Physical Properties...
I need MATLAb programming for above example . Ido not want ay
theory or numerical explaination
8. In order to increase the thermal resistance of a typical exterior frame wall, such as the one in Example 1.2, t is customary to use 2 × 6 studs instead of 2 × 4 studs to allow for place ment of more insulation within the wall cavity. A typical exterior (2 X 6) frame wall of a house consists of the materials shown...
PLease calculate the question about condensation in
building
(d) A wall consists of 15mm dense plaster (1), 100 medium weight concrete blockwork (2), 40mm glass fiber quilt (3), a 10mm air space (4) and 105mm brickwork (5). The composition of the wall is shown in Figure 1. In a winter day, the indoor air temperature and relative humidity are maintained at 20°C and 60% while the outdoor air temperature is 0°C. The vapor resistivities of the wall components are shown...
A 100 ft2 wall consists of 4 in of red brick (k = 0.38 Btu-ft/hr-ft-°F), 1 inch of pine (k = 0.06 Btu-ft/hr- ft-°F) and 42 inch of plaster board (k = 0.30 Btu-ft/hr-ft-°F). The internal and external film heat transfer coefficients are 1.65 Btu/hr-ft-°F and 6.00 Btu/hr-ft-'F respectively. The inside and outside air temperatures are 72 °F and 30 °F respectively. The heat transfer rate is:
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