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A circular fin of inner diameter 20 cm and outer diameter of 26 cm transfers heat from a small motorcycle engine. If the average engine surface temperature is 112 °C, determine the temperature distribution along the fin surface. The thermal conductivity of the fin material is 21 W/m °C and the convective heat transfer coefficient between the fin and the atmosphere is 120 W/m2 °C. Assume an atmospheric temperature of 32 °C.
the air velocity in a duct is measured by a Pitot-static probe connected to a differential pressure gage. if the air is at 13.4 psia absolute and 70 degrees C and the reading of the differential pressure gage is 0.15 psi, determine the air velocit..
air is adiabatically compressed in a non flow process from a pressure of 14.7 psia and a temp of 70 deg to 200 psia and
In a Modified Rankine Cycle used in a power plant in Wichita, KS, a Shell and Heat Exchanger needs to be installed. Water from the turbine at 90 C is cooled to 80 C in a shell-tube HX using 150 kg/s of raw water from Power Plant Lake.
A product whose total work content time = 50 min is to be assembled on a manual production line. The required production rate is 30 units/hr.
a piston-and-cylinder device contains 10 kmol of n-pentane at -35.5 c and 100 bar. slowly the piston is moved until the
find the specific volume of steam in m3kg at 2.5 mpa and 283 degrees c. what is the value predicted by the ideal gas
Calculate the applied bending moment on a 60 mm x 160 mm rectangular beam with a maximum bending stress of 20,000 kPa.
Reversible 2T heat engine works between 1200 K and 600 K. Its work output per cycle is 100 J. What is amount of heat rejected in joule per cycle, to the revervoir at 600 K?
a 50 cm diameter 100 cm high cylindrical tank is partially filled with 50 cm high liquid with density 870 kgm3. the
The minimal polynomial m( .,\ ) of A is the polynomial of lowest order having 1 as its leading coefficient such that m(A) = 0. Consider the matrix A = rn -i n
An adiabatic turbine operates at steady state. Air enters the turbine at a pressure and temperature of 800kPa and 1100K, respectively, and exits at 100kPa. A temperature sensor at the turbine exit indicates that the exit air temperature is 700K. Kine..
biodiesel is produced from vegetable or animal oils. usually the glycerine in the oil is replaced by methanol. since
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