The window of a room is made of 5 mm thick glass which has a thermal conductivity of 1.4 W/m-K. A heater is used to maintain the room temperature at 22 °C. Take the convection heat transfer coefficients on the outer surface of the window to be 12 W/m²-K. Take appropriate assumptions while solving this problem. (a) T₁-15 °C T↑ Find the outside temperature? -A=1m x 3m 3m², k=1.4 W/m-K Figure Q2 -T₂=5°C L=0.005m

Q: To confirm that a double-pane window is indeed better than a single-pane window, you ran some tests.…

A:

Q: The inner and outer surface temperature of a 5.1 mm thick glass window are 17.6 and 7.1 oC,…

A:

Q: Q2 A 2 kW resistance heater wire with thermal conductivity of k = 20 W/m °C, a diameter of D = 5 mm,…

A:

Q: Q₁: Consider a large plane wall of thickness L = 0.4 m, thermal conductivity k-2.3 W/m °C, and…

A: Given data:- Plane wall thickness, Thermal conductivity of wall,  and its surface area, The left…

Q: A long, thin copper rod 5 mm in diameter is exposed to an environment at 20°C. The base temperature…

A:

Q: How long should it take to boil an egg? Model the egg as a sphere with radius of 2.3 cm that  has…

A:

Q: Using A and V as the variables, set up the objective function and constraint to optimize the first…

A: Given:water temperature = T = 250CSolar Energy: 260 W/m2convection coefficient = h = 2…

Q: Q2: A 2.5 -mm-diameter electrical wire is insulated by a 2-mm-thick rubberized sheath (k = 0.11 W/m…

A: In-plane slab, the addition of insulation always reduced the heat loss. But in the case of cylinder…

Q: The surfaces of a wall with uniform heat generation of 16535W/m³ are at 269°C and 108°C. If the wall…

A:

Q: A cold-storage room is constructed of an inner layer of 11 mm of pine with thermal conductivity of…

A: Given:- Length of pine(thickness) Lp=11mm=0.011m Length of concrete(thickness) Lc = 75mm=0.075m…

Q: b) The fuselage of an aeroplane consists of the following three layers: the outer layer made from…

A:

Q: Consider a wall that is 5 m high, 8 m long, and 0.22 m thick. The thermal conductivities of the…

A: Given data as per the question The temperature at entry =3000 c The temperature at the outer surface…

Q: A house has walls made out of steel with the following properties: Thickness Density Thermal…

A: Given,  density , ρ = 7800 Kg/m3 thickness ,  x  = 300mm thermal conductivity , k =50 W/m-k…

Conduction and Convection

When energy travels from one object to another it is said to have undergone heat transfer. Heat transfer is nothing but the transfer of thermal energy or internal energy from one thing to another, like e.g., when a vessel with water, kept on top of a burner, heats up because of the flame underneath it.