.A 3-mm diameter and 5-mlong electric wire is tightly wrapped with a 2-mm thick plastic Cover whose thermal conductivity of k-0.15W/m°C. Électrical measurements indicate that the aurrent of 10A passes through the wire and there is a voltage drop of 8V alorg the wire. If the irsulated wire is exposed to a medium at T=30°C with a heat transfer coefficient of =12W/m?.°C, determine the temperature at the interface of the wire and the plastic cover under steady operation. Also determine whether doubling the thickness of the plastic cover will increase ar decrease this interface temperature. Your solution must state govening equations and associated assumptions, illustration and step by step execution of the overall solution."

Q: 2) The loss of strength in HAZ of weld joints of work hardened Al alloys can be reduced by

A: Given: To determine the correct option Welding is a process of joining two similar metals with the…

Q: Steel balls 12 mm in diameter are annealed by heating to 1100 K and then slowly cooling to 380 K in…

A: The given information in the problem is shown in the following attached image:

Q: Under steady-state conditions, the wall of a brick house is measured to have an inside temperature…

A:

Q: Consider a short cylinder of 10.0cm diameter and 5.0cm length with a thermal conductivity of k = 10…

A: Diameter = 10 cm = 0.1 m Length = 5 cm = 0.05 m k = 20 W/m.K h = 20 W/m2K Rate of heat generation =…

Q: A very thin silicon chip is bonded to a 6-mm thick aluminum substrate by a 0.02-mm thick epoxy glue.…

A:

Q: W concrete on the outside is 8.00cm thick and has a thermal conductivity of 0.500- m.K W wood on the…

A: givenoutside temp= 7.00°cinside temp=22.00°csurface area of wall= 20.0m3

Q: The internal side of a wall is kept at 100o C and its external side which is exposed to the…

A: T1=100o CT2=10o Ch=10 W/m2 oCK=1.3 W/m oCt=0.4 m

Q: An annular stainless steel (type 304) fin of thickness 4 mm and outside diameter 2 cm is attached to…

A:

Q: A steel sphere (AISI 1010), 100 mm in diameter, is coated with a dielectric material layer of…

A:

Q: An insulated pipe has an inner diameter of 0.05 m and an outer diameter of 0.06 m. If the insulation…

A:

Q: Consider a machine surface that is made of a 5-mm thick alu- minum with a thermal conductivity of…

A:

Q: Calculate the heat transfer per hour though a solid brick wall 6.9m long, 1.5m high and 216mm thick,…

A: Solution:

Q: Problem-2: A 2.2-mm-diameter and 10-m-long electric wire is tightly wrapped with a 1-mm-thick…

A: The interface temperature and change in the interface temperature.Given:The radius of the wire is…

Q: Calculate the heat transfer per hour through a solid brick wall 6 m long, 3 m high, and 240 mm…

A: find the heat transfer per hour.

Q: A pipe having an outside diameter of 6 cm is maintained at 200°C by steam flowing inside. The pipe…

A:

Q: A flat wall is exposed to an environmental temperature of 38oC. The wall is covered with a layer of…

A:

Q: Calculate the heat transfer rate per metre length when a steel pipe conveying steam is insulated.…

A: Given details: T∞1=300°CT∞2=20°Cdi=20 cm=0.2 mdo=30 cm=0.15 mt=10 cm =0.1 mki=0.1 W/m-kkpipe=80…

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.