a hot fluid of 200 °C.  How long does it take the rod temperature to reach 70% of the fluid temperature if the followings are given? Convection coefficient h = 10 W/m2K Thermal conductivity k = 20 W/mK Thermal diffusivity a = 10-5 m2/s

Q: It is required to perform a heat treatment for gas turbine applications, for them it is required to…

A: From the given data:  The fourier number will be: →Fo=kρCP×tLC2Where LC=characteristic length=D=3.5…

Q: Plot the temperature distribution along the fin using the following data: k = 168 W/m.K, h = 12…

A: Given Data: k=168 W/m-Kh=12 W/m2-Ka=0.05 mb=0.01 m   To Find: Temperature distribution plot.

Q: A brass rod 100 mm long and 5 mm in diameter extends horizontally from a casting at 200 °C.…

A: Given:The length of the brass rod is the diameter of the rod is the temperature of the casting is…

Q: r surfaces is 22

A:

Q: The steel rod (k=43 W/m.K) has 0.3 m is located between two walls seen in figure. The left and right…

A: Let consider the rods as a fin with the fixed temperature from both ends. So the equations for heat…

Q: 1. A beverage cooler is in the shape of a cube, 42 cm on each inside edge. Its 3.0-cm thick wall are…

A:

Q: A copper rod has an initial length 5.0 cm and a thermal expansion coefficient of 16 x 10-6 /K. It is…

A:

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

A:

Q: A homeowner wants to reduce their monthly heating bill and carbon footprint and is considering…

A:

Q: Find the temperature at r = 0.5 cm after 75 seconds of exposure.

A: Find the temperature at r = 0.5 cm after 75 seconds of exposure.

Q: A camera used for monitoring marine life is placed in water where T_ -5°C and the convection heat…

A:

Q: The temperature distribution across a wall 0.25 m thick at a certain instant of time is T(x) = a +…

A:

Q: Steel pipe (outer diameter 100 mm) is covered with two layers of insulation. The inner layer, 40 mm…

A:

Q: You are designing an enclosure which houses a PCB. Mounted outside the enclosure on its top is a set…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…

Q: A Deep-sea Diver is wearing a wetsuit in cold water. (Natural convection, radiative transfer is…

A: as per our company policy we have restricted to answer the only first 3 sub parts of the given…

Q: The inside surface temperature of a glass oven door (0.5 m x 0.5 m x 0.001 m) is 180°C, the outside…

A:

Q: A long wire of diameter D = 2 mm is submerged in an oil bath of temperature T∞ = 23°C. The wire has…

A: Given         Current, I = 180 A Resistance, Re = 0.01 Ω/m    Diameter, D = 2 mm…

Q: A large 100-mm thick steel plate is initially at uniform temperature T = 180°C at time t = 0. Both…

A:

Q: A rod of 1 cm diameter and 10 cm long is heated at one end. A fan is used to blow air over the…

A: Given:Diameter of a rod, d=1 cmLength of a rod, L=10 cmFind:The appropriate area for the conduction

Q: A body having a cylindrical shape of length equals to 1.9 m and diameter equals to 400 mm is inside…

A: During unsteady heat transfer, it is not the only temperature of the body that keeps on changing…

Q: 3.) A fluid has a temperature of 100C and thermal film coefficient of W 50 Solve for the heat…

A:

Q: Temperature distribution along the radius of a long cylindrical shell was found to be -2596.8 W/m2;…

A:

Q: Wind blows over a whirlpool hot tub. The air temperature is 290 K with a convection heat transfer…

A: Given: The temperature of the air is Ta=290 K, The convective heat transfer coefficient is ha =400…

Q: A thick-walled tube of stainless steel [18% Cr, 8% Ni, k= 19 W/m - °C] with 2-cm inner diam- eter…

A:

Q: Electrical current flows through a cylindrical cable with a diameter of d = 4 mm generating thermal…

A:

Q: The steel rod (k=43 W/m.K) has 0.3 m is located between two walls seen in figure. The left and right…

A: Given data: Length of the steel rod, L=0.3 m and it's diameter, d=5 cm=0.05 m. It's thermal…

Q: In between two fluids at two different temperatures (as shown in the figure) there is a rectangular…

A: Calculate the temperature at wall surface which is exposed to hot fluid by substituting x=0 in the…

Q: Hot Air blows over steel plate with dimension (5000mm * 7.5m)), the steel plate temperature is 22'C,…

A:

Q: Determine the temperature distribution (nodal temperatures) of the structure shown in the figure…

A: Given : The thermal  conductivity is The convective heat transfer is The cross section area is The…

Q: Steel is sequentially heated and cooled to relieve stresses and to make it less brittle. Consider a…

A: SteelExplanation:Step 1:Step 2:Step 3: Step 4:

Q: Find the minimum amount of diameter for the insulation of a spherical water tank? Radius of the tank…

A:

Q: What is the heat transfer rate of a single fin? b.Plot the temperature distribution within the fin…

A:

Q: Quantities Calculated Values Power (Q) W Area of cross section (A) m? Difference in Temperature…

A: As given power Q=14.7 W ;Diameter of the material= 25 mm;So the area of cross section A=π4d2= π4252…

Q: Part A In this problem you will consider the balance of thermal energy radiated and absorbed by a…

A: Law states that the radiation energy emitted from the surface of a black body per unit time per unit…

Q: Copper fins, 2.1 cm long and 2.1 mm in diameter, are attached to a base plate at 75 °C. A fan blows…

A: To find: The heat transfer through the tips. Given: The length of the fin is L=2.1 mm1 m1000…

Q: the midpoint temperature of the rod?

A:

Q: Saved Help Save & A 2-kW resistance heater wire with thermal conductivity of k= 70 W/m-K, a diameter…

A:

Q: A pipe of length L connects to thermal reservoirs that are kept constant at temperatures T₁ and T₂.…

A: GivenReservoirs temeprature T1 and T2length of the pipe =Lx=0.2L

Q: A device is used to measure the solar flux incident on it. The environment temperature ?∞=20℃ and…

A: This question is from convective heat transfer.  Since solar flux is dissipated by connection heat…

Q: A team of students tests a material for its thermal conductivity (k).  After 20 minutes in a heat…

A:

Q: Steel pipe (outer diameter 100 mm) is covered with two layers of insulation. The inner layer, 40 mm…

A: Given The outer diameter of the pipe is do=100 mm. The thickness of inner layer insulation is ti=40…

Q: The rear window of a car is defrosted by the passage of warm air on the internal surface. If the…

A:

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.