A 25 mm diameter egg roll (k = 1 W/m degree) is roasted with the help of microwave heating. For good quality roasting, it is desired that temperature at the center of roll is maintained at 100 degree Celsius when the surrounding temperature is 25 degree Celsius. What should be the heating capacity in W/m of the microwave if the heat transfer coefficient on the surface of egg roll is 20 W/m degree? a)613.31 k W/m b) 93.31 k W/m c) 6713.31 k W/m d) 213.31 k W/m 3

Q: The insulation bricks of 0.3 m, and then buildind bricks of 0.2 m were applied to the firebrick of…

A:

Q: Given the following reaction with a feed rate of 15.0 kg/s each of H₂ and 0₂: 2H2(g) + O2(g) → 2H₂0…

A: Write the reaction as follows: 2H2g + O2g → 2H2Ol Two moles of H2 reacts with one mole of O2 and…

Q: Steel pipe 1 cm thick, 1.0 m long and 5 cm deep, covered with 2 cm thick insulation. The wall…

A:

Q: Chemical engineering exercise 2.1  Estimate the heat loss per m² of surface area for a furnace wall,…

A:

Q: A certain material has a thickness of 4 cm and its thermal conductivity is 0.04 W / m.oC. At a…

A: The heat flow rate at the given distances from the material is to be calculated.

Q: The heat is propagating through a stainless steel wall with thermal diffusivity of 6x10^(-6)m2/s. If…

A: Given that- Heat is propagating through a stainless steel wall. Thickness of wall, l=52.00 mm=0.052…

Q: 3. Calculate the heat loss per linear feet from 2 in. nominal pipe (2.376 in outside diameter)…

A: Given that, The inside diameter of the pipe d1 = 2 in The outside diameter of the pipe d2 = 2.376 in…

Q: Example 2.1 : Calculate the rate of heat loss through a wall of k = 0.70 W/(m K)] 5 m in length, 4 m…

A: Above problem is based on conductio.Conduction is an mode of heat transfer which is define as the…

Q: A polished stainless steel surface is electrically heated form the bottom to boil water at…

A: Material = Polished stainless steelPressure, Temperature,

Q: The aim is to reduce the thickness of the first steel wall. Between the two walls there is a…

A: Given : Height Thickness Width Expansion rate Weight of wax

Q: The walls of the refrigerated storage room are 10 m long and 3 m high and constructed with 120 mm (k…

A:

Q: with the

A:

Q: plane wall composed of 2 Determine local conductive resistance r (in m².K/W) of a 90 m² layers in…

A: Given that Thickness of first layer=∆x1=240 mm=0.24 m Thickness of second layer=∆x2=120 mm=0.12 m…

Q: Q1/A steel pipe of outside diameter of (5.1 cm) is insulated with a (0.64 cm) thickness of asbestos…

A: A steel pipe with insulation layers of asbestos and fiber glass are given with following…

Q: The exhaust duct from a heater has an inside diameter of 114.3 mm with ceramic walls 6.4 mm thick.…

A: Given data: Inside diameter = 114.3 mm Ceramic walls 6.4mm, the average k = 1.52W/mKThermal…

Q: On the same graph paper show how the heat flow during a DSC analysis and the elastic modulus of a…

A: DSC analysis is differential scanning calorimetry analysis. It is used to measure the effect of heat…

Q: The condensing vapour is usually placed side of Shell and tube heat exchanger.

A: Given: Condensing vapor is placed in which side of STHE?

Q: A horizontal tube (inner and outside diameters are 2.0 cm and 2.5 cm respectively). is used as…

A: Given, 1Uinner=0.005 (m2–K)/W 1Uoutside=0.008 (m2–K)/W  1Uoverall=1Uinner+1Uoutside…

Q: The temperature at the inside surface of an oven is 460 °F. The inside wall of the oven is made of…

A: Refer to the figure shown below for the given problem statement. The conversion factor used here is…

Q: A composite wall is formed of a 2.5-cm copper plate, a 3.2-mm layer of asbestos, and a 5-cm layer of…

A: Composite wall dimensions are as follows,Thickness of copper plate = 2.5 cm, Thickness of asbestos =…

Q: The inner and outer surfaces of a 4-m x 6-m brick wall of thickness 20 cm and thermal conductivity…

A: Given Data : Inner wall temperature of the brick (Ti) = 220C Outer wall temperature of the brick…

Q: Temperature difference is not the driving force for heat transfer. O yes O No

A: heat transfer is the change in thermal energy by difference in temperature of two body let say…

Q: Q3: A 1-mm-thick copper plate (k 386 W/m C) is sandwiched between two 2-mm-thick epoxy boards (k…

A: Given data are as shown below:K = 386 W/m*c for copper plateK = 0.26 W/m*c for epoxy boardsarea =…

Q: 3- Calculate heat transfer flux of a wall with two layers of insulations. The inner wall is at…

A: The heat transfer flux for the given insulation system is to be determined.

Q: Effect of the carbon percentage on the shape and magnitude (mechanical properties) of stress-strain…

A:

Q: TEMPERATURE GRADIENTS: A room has external wall with a U-value of 2.5 W/m2 K and contains air at…

A:

Q: 1. Suatu pipa 2 inch schedule 40 membawa fluida panas dilapisi isolasi setebal 2 cm. Konduktivitas…

A:

Q: Calculate the latent heat of condensation for water at 8 MPa. Compare with values from steam table.

A: Given data: Pressure = 8 Mpa Calculate the latent heat of condensation for water.

Q: 5. In a composite vertical furnace wall, the resistance due to the insulating brick is 0.5769°C/W.…

A: We are given that  the resistancedue to insulating brick is 0.5769 oC/W we have to find the total…

Q: A new concrete driveway has been cured and is subsequently being cooled by spraying 20C water on the…

A: Thermal diffusivity: In heat transfer, thermal diffusivity is defined as the thermal conductivity…

Q: A thick-walled tube of stainless steel(Ks=19.0 W/m.°C)  with 2-cm inner diameter (ID) and 4-cm outer…

A: Given r1 =2/2= 1 cm r2 = 4/2=2 cm r3 = (2 + 3)/2= 2.5cm ks =19.0 W/m.°C ka =0.2 W/m.°C Interior…

Q: 1. The surface temperature of the electronic chip shown below is 75 °C and it is surrounded by…

A: Given, The surface temperature of the electronic chip, Ts = 75°C The temperature of air, Ta = 25°C…

Q: PE4 Determine local conductive resistance r (in m².K/W) of a 90 m² plane wall composed of 2 layers…

A: Given Details: Plane wall composed of 2 Layers in series. Brick: Thickness,δ1=240.0 mm , thermal…

Q: er, 4 mm thick, k-120 W/m. C disc is welded to 10 (heater). The system is exposed to air at 20 °C,…

A:

Q: A furnace of 70- by 60- by 90-cm inside dimensions is constructed of a material having a thermal…

A:

Q: A dryer is shaped like a long semicylindrical duct of diameter 1.5 m. The base of the dryer is…

A: Diameter of duct, D = 1.5 m Temperature of the bottom (base), T1 = 370 K Temperature of the top…