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The electronic components of a computer consume 0.1 kW of electrical power. To prevent overheating, cooling air is supplied by a 20-W fan mounted at the inlet of the electronics enclosure. At steady state, air enters the fan at20 °C, 1 bar and exits the electronics enclosure at 35 ºC. There is no significant energy transfer by heat from the outer surface of the enclosure to the surroundings and the effects of kinetic and potential energy can be ignored. Determine the rate of entropy production, in kW/K, ignoring the change in pressure between the inlet and exit.
a large storage tank contains 500000 l of milk. milk enters the tank through a 0.05 m diameter pipe at a velocity of 3
the atmosphere is stable with a lapse rate of -0.2 degree c100 m. the surfaces air temperature is 15 degree c. a parcel
A rigid tank is heated for 9 minutes with a 800W electrical heater. During this time 70kJ of energy is lost due to heat transfer to the environment. Find the temperature of the refrigerant at the end of the heating process.
The power output of a non-ideal gas turbine cycle having a compressor thermal efficiency of 80% and a turbine thermal efficiency of 90 %., open-cycle gas turbine cycle is 75 MW and its pressure ratio is 16. Air enters the compressor at 520 R and ente..
Knowing that the modulus of elasticity of brass is 105 GPa, determine the magnitude of the load P for which the deflection of the plug is 1,25 mm downward.
write a c program calls a function to read a list of n integer values from user input. if user inputs -999 the
these include micrel mm5450 mic5821 allegro a6276ea ucn5832a and texas instruments tpic6c595. these are all serial
a stainless steel tube k 14 wmk used to transport a chilled pharmaceutical has an inner diameter of 36 mm and a wall
determine the system of equations from the following equationsxdot ax buy cx dualso find the laplace transform of
a tile-iron consists of a massive plate maintained at 150 degrees celsius by an embedded electrical heater. the iron is
A gear blank has been successfully hot forged on a mechanical press in a closed die. At the beginning of a new production run
A 45 kg machine is mounted on a spring of stiffness 8x10^5 N/m. When the machine is set to vibration by a 32 Hz excitation, the machine's amplitude is measured as 1.5mm. What is the amplitude of the excitation provided to the machine? Ignore damping ..
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