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Question: The upper and lower surfaces of a triangular fin of length 90 mm transfer heat with a coefficient h = 200 W/m2 ·K to an ambient at temperature T∞ = 20 °C. The base temperature of the fin is maintained at T0 = 120 °C (Fig.). The thermal conductivity of the fin material is k = 50 W/m·K. Write the finite-difference formulation of the problem by considering a nodal spacing of 15 mm. Determine the tip temperature of and the heat transfer to the fin, and the efficiency of the fin, by the method of iteration.
What are the possible phase transitions?
a glass tube is inserted in mercruy. what is the upward force on the glass as a result of surface effects? constant
If the beam has square cross section of 9 in., on each side, determine the absolute maximum bending stress in the beam.
MECH 437 - HEAT TRANSFER DESIGN PROJECT - DESIGN OF A HEAT SINK FOR A COMPUTER CHIP. A heat sink is to be designed for a hot silken chip to remove 105.7 W to keep the chip below a maximum temperature of 60oC
water at 300k flows at 0.2 ms over a 3 cm-diameter cylinder maintained at 400k. determine 1 drag coeffiencient and 2
The student starts from rest at the caller and runs away with a constant radial acceleration 0.5 m/s2 (with respect to the platform) as shown. The platform rotates at constant angular velocity 0.2 rad/s. Determine the magnitudes of the student's ve..
a horizontal pipe has an abrupt expansion from d1 8 cm to d2 16 cm. the water velocity in thenbspsmaller pipe is 15
a brayton cycle operates with inlet air at 14 psi and 80f. the turbine inlet temperature is 1800 f and the pressure
A form of corrosion called pitting corrosion can occur in aluminum in fresh water. As the name suggests, pits form on the surface of aluminum in this type of corrosion. The pit depth, d follows a cube root relationship time, t:
1. determine the solar elevation at solar noon for winer solstice equinox and summer solstice for elevations 30 40 and
a square duct 30 cm x 30 cm is maintained at a constant temperature of 30 degc. an airstream of 50 degc and 1 atm is
a piston of diameter 100 mm moves inside a cylinder of 100.1 mm diameter. find the percent decrease in force necessary
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