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Beverage in cans 150 mm long and 60 mm in diameter is initially at 27°C and is to be cooled by placement in a refrigerator compartment at 4°e. In the interest of maximizing the cooling rate, should the cans be laid horizontally or vertically in the compartment? As a first approximation, neglect heat transfer from the ends.
a spur pinion d 100 mm has a torque of 225 nm applied to it. for pressure angle of 20 degreea. calculate wt wn and wr
0.12 kg of argon fills a 0.038 m3 weight-piston-cylinder device at 445 kpa. the piston is now moved by decreasing the
a 1.8 m x 1.5 m composite wall separates a furnace from the rest of the room in which it is located. the wall is made
refrigerant 134a is too accelerated in a steady flow nozzle to a velocity of 250 mpa. at the nozzle inlet the pressure
Air enters a compressor operating at steady state at 1 atm. with a specific enthalpy of 290 kJ/kg and exits at a higher pressure with a specific enthalpy of 1023 kJ/kg. The mass flow rate is 0.1 kg/s. If the compressor power input is 77 kW. Neglect f..
air is compressed under steady flow conditions see figure q3. the power input to the compressor is 3 kw. during the
supose you have one mole of an ideal gas t1300k in a container and you want to compress it isothermally by a constant
an 8 in. id pipe is connected by means of a reducer to a 6 in. id pipe. kerosene flows through the system at 2000
a structural support is installed within a space craft. the support is made of 7075-t6 aluminum plut t-ult 250 mpa and
an adiabatic compressor compresses air from atmospheric pressure and 70 degf at a rate of 10000 acfm actual cubic feet
Assume a labor rate of $50.00/hr and a burden rate of $25/hr. Assume a surface speed of 2000 ft/min. The number of teeth on the cutter is 4. The feed is 0.005 in/tooth. The depth of cut is 0.020”. The width of cut is equal to the diameter of the t..
Ten pounds-mass of R-22 is at an initial volume of 4.059 ft3 and pressure of 200 psia. It is compressed isobaric ally until its volume is two-thirds of its initial volume. The piston is then held in place as the refrigerant cools until its temperatur..
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