A modern cabin has a concrete floor that is 4.00 cm thick. A roaring fire keeps...
A modern cabin has a concrete floor that is 4.00 cm thick. A roaring fire keeps the interior of the cabin at 21.0 0C while the air temperature below the cabin is 2.75 0C. How much heat is lost through the concrete floor in one evening (4 hrs) if the cabin measures 4.00 m by 8.00 m?
concrete=1.1
Homework Answers
Heat generated is given by
Q=1.1*(4*8)*(21-2.75)*(4*60*60)/0.04
Q=2.31264*108 Joules
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A modern cabin has a concrete floor that is 4.00 cm thick. A
roaring fire keeps...
A modern cabin has a concrete floor that is 4.00 cm thick. A roaring | fire...
A modern cabin has a concrete floor that is 4.00 cm thick. A roaring | fire keeps the interior of the cabin at 21.0 °C while the air temperature below the cabin is 2.75 °c. How much heat is lost through the concrete floor in one evening (4 hrs) if the cabin measures 4.00 m by 8.00 m? A styrofoam wall (used for insulation) has a thickness of 25.4 mm. The temperature on one side of the wall is 5.50...
Question 3 A 11 m x15m house is built on a 14 cm -thick concrete slab....
Question 3 A 11 m x15m house is built on a 14 cm -thick concrete slab. Part A What is the heat-loss rate through the slab if the ground temperature is 5 ° while the interior of the house is 24 Express your answer using two significant figures. ? kW At Submit Request Answer
A concrete wall of a house is 45 cm thick and has a surface area 20m...
A concrete wall of a house is 45 cm thick and has a surface area 20m x 5 m. The inside temperature of the wall is 47 °C and the outside air temperature is 14 °C. Thermal conductivity of the concrete wall is 0.8 W/mK. Calculate the heat transfer rate through the wall by conduction and its thermal resistance.
A 1.8-cm-thick wood floor covers a 4.0m×5.5m room. The subfloor on which the flooring sits is...
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A modern cabin has a concrete floor that is 4.00 cm thick. A roaring | fire keeps the interior of the cabin at 21.0 °C while the air temperature below the cabin is 2.75 °c. How much heat is lost through the concrete floor in one evening (4 hrs) if the cabin measures 4.00 m by 8.00 m? A styrofoam wall (used for insulation) has a thickness of 25.4 mm. The temperature on one side of the wall is 5.50...
Question 3 A 11 m x15m house is built on a 14 cm -thick concrete slab. Part A What is the heat-loss rate through the slab if the ground temperature is 5 ° while the interior of the house is 24 Express your answer using two significant figures. ? kW At Submit Request Answer
A concrete wall of a house is 45 cm thick and has a surface area 20m x 5 m. The inside temperature of the wall is 47 °C and the outside air temperature is 14 °C. Thermal conductivity of the concrete wall is 0.8 W/mK. Calculate the heat transfer rate through the wall by conduction and its thermal resistance.
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