A 0.21cm diameter electrical wire at 32oC is covered by 0.05cm thick plastic insulation (k = 0.13 W/mK). The wire is exposed to a medium at 10oC with a combined convection and radiation heat transfer coefficient of 14 w/m2K. a) Determine the heat transfer rate of the wire. b) Determine if the plastic insulation on the wire will increase or decrease heat transfer from the wire. c) Determine the heat transfer rate of the wire with an added thermal contact resistance of 0.000176 m2K/W at the interface of the wire and the insulation.

Q: Heat is generated in a 2.0-cm-square copper rod at the rate of 30 MW/m³. The rod is exposed to a…

A: Given data: a=2.0 cmQ˙=30 MW/m3T∞=25°Ch=5 kW/m2 Need to determine the surface temperature of the…

Q: 5- A spherical tank with internal diameter of 2 m made of 2.0-cm-thick stainless steel (k=15 W/m.K)…

A:

Q: A cylindrical steel tank with a diameter of 3 m and height of 4.4 m is used to store chilled water…

A: Given:  r = d/2 = 3/2 = 1.5 m H = 4.4 m h = 15 W/m2K

Q: Q: A large plane wall of thickness (L= 0.3 m), thermal conductivity ( k = 40 W/m-°C), and surface…

A: Given, L = 0.3 mk = 40 W/m °CA = 0.4 m2T(0) = 70 °Cq' = 1200kk + 20L=1200 (40)40 + 20 (0.3)=1043.48…

Q: The wall of the furnace is 30.48 mm thick and is insulated from outside. Thermal conductivity of the…

A: Given: twall=30.48 mmkwall=0.1 W/mKkins=0.01 W/mKTfurnance=T1=650…

Q: Q5) Consider a wall-mounted power transistor that dissipates 0.18 Wof power in an environment at…

A: The convective heat transfer is defined as the enhancement of conduction by virtue of convection.…

Q: A pile of biomass (1.6 m deep, with a thermal conductivity of 0.41 W/mK) has been semi-buried in the…

A: Given : t = 1.6 m h = 13 W/m2K T = 23 C s = 15 W/m3 To find : Temperature at top surface at steady…

Q: A composite wall made of two materials consists of a 10 cm thick layer of brick (kb=0.15 W/m/K) and…

A: Given:Thickness of layer of brick, Lb=10 cm=0.1 mThermal conductivity of brick, kb=0.15 W/m.KThermal…

Q: A. The Heat Flow B. Conductive resistance

A: (a) Heat flow = Q=T1-T2L/(kA) T1-T2=∆T= Temperature difference L = thickness of the wall k = thermal…

Q: 3 cm thick has a constant temperature of 400 ° C while the temperature of the other surface is kept…

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.