Consider a very long rectangular fin attached to a flat surface such that the temperature at...

Consider a very long rectangular fin attached to a flat surface such that the temperature at the end of the fin is essentially that of the surrounding air, i.e. 20°С. Its width is 5.0 cm; thickness is 1.0 mm; thermal conductivity is 200 W/m·K; and base temperature is 40°C. The heat transfer coefficient is 20 W/m2 .K. You can use Table 1(a) for assistance. (i) Estimate the fin temperature at a distance of 5.0 cm from the base, and; (ii) Calculate the rate of heat loss from the entire fi

Expert Solution

samet mamat answered 1 year ago

Consider a circular (cylindrical) pin fin attached to a flat plane with the following properties: k...

Consider a circular (cylindrical) pin fin attached to a flat plane with the following properties: k = 237 W/mC (thermal conductivity) L = 100mm (length) r = 2mm (radius) T_b = 80 C (temperature at fin base) T_inf = 20 C (air temperature) h = 12 W/m^2C (Convection Coefficient) Find the following using the infinitely long and insulated (adiabatic) tip methods: The temperature of the fin at a distance L/2 Heat transfer rate from the fin Fin efficiency Fin Effectiveness...

how to find surface temperature of the flat plate which is subjected to air flow from...

how to find surface temperature of the flat plate which is subjected to air flow from one side and constant temperature on the other side using Ansys fluent ?

Consider a thin flat rectangular region that of size 4 x 2 m2 and it is...

Consider a thin flat rectangular region that of size 4 x 2 m2 and it is electrically insulated at its four corners. (A)Solve Laplace’s equation  2 V(x,y) = 0 in the rectangular region 0 < x < 4 m and 0 < y < 2 m using the separation of variable technique subject to the following boundary conditions: V(0,y) = 0 V(4,y) = q(y) = 50 sin (3π y / 2) V(x,0) = 0 V(x,2) = f(x) =100 sin...

A rear window defroster consists of a long, flat wire bonded to the inside surface of...

A rear window defroster consists of a long, flat wire bonded to the inside surface of the window. When current passes through the wire, it heats up and melts ice and snow on the window. For one window the wire has a total length of 12.0 m, a width of 1.8 mm, and a thickness of 0.12 mm. The wire is connected to the car's 12.0 V battery and draws 12.0 A. What is the resistivity of the wire material?

A circumferential aluminum fin is attached to an electronic resistor having 1/4 inch diameter. The fin...

A circumferential aluminum fin is attached to an electronic resistor having 1/4 inch diameter. The fin is 1/8 inch long and .001 inches thick. The convective heat transfer coefficient to the surrounding media, air at 60oF, is 10 Btu/h ft2 oF when the fin is at 120oF. Estimate the fin efficiency and the heat transfer from the fin.

Consider a cylinder rolling, without slipping, on an inclined flat surface (a ramp) that forms an...

Consider a cylinder rolling, without slipping, on an inclined flat surface (a ramp) that forms an angle  = 30 º with respect to the horizontal direction. An external force F = 10 N parallel to the ramp is pushing the cylinder in the uphill direction, without creating any torque (that is, the force is acting directly on the center of mass of the cylinder). If the cylinder is released at a time t = 0 with a linear velocity...

Aluminum fins of triangular profile are attached to a plane wall whose surface temperature is 100°C....

Aluminum fins of triangular profile are attached to a plane wall whose surface temperature is 100°C. The fin base thickness is 2.0 mm, and its length is 10 mm. The system is in ambient air at a temperature of 20°C, and the surface convection coefficient is 40 W/m2·K. (a) What are the fin efficiency and effectiveness? (b) What is the heat dissipated per unit width by a single fin? (a)nf= ef= (b)q'f=

A composite series wall has an inside surface temperature of 1600F and outside surface temperature of...

A composite series wall has an inside surface temperature of 1600F and outside surface temperature of 500F. If it consists of 3.5 in. of mineral wool, 0.05 in. of plaster on the outside, and 0.75 in. of cork board on the inside, determine the heat loss in a 120 square foot of wall.

The rotor in a certain electric motor is a flat, rectangular coil with 89 turns of...

The rotor in a certain electric motor is a flat, rectangular coil with 89 turns of wire and dimensions 2.57 cm by 4.20 cm. The rotor rotates in a uniform magnetic field of 0.800 T. When the plane of the rotor is perpendicular to the direction of the magnetic field, the rotor carries a current of 10.6 mA. In this orientation, the magnetic moment of the rotor is directed opposite the magnetic field. The rotor then turns through one-half revolution....

A very long solid conducting cylinder of length L and radius R carries a uniform surface...

A very long solid conducting cylinder of length L and radius R carries a uniform surface current over the whole outer surface of the cylinder. The surface current is along Z and parallel to the XY-Plane. Use the Biot-Savart law to calculate the B field inside, at the middle of the cylinder. Thanks!

Question