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A gas-turbine power plant operates on the simple Brayton cycle with air as the working fluid and delivers 32 MW of power. The minimum and maximum temperatures in the cycle are 310 and 900 K, and the pressure of air at the compressor exit is 8 times the value at the compressor inlet. Assuming an isentropic efficiency of 80 percent for the compressor and 86 percent for the turbine, determine the mass flow rate of air through the cycle. Account for the variation of specific heats with temperature.
a spring-loaded a toy gun is used to shoot 1 -oz bullets vertically upward. the undeformed length of the spring is 6
find the thermal conductivity in wm-1 k-1 and thermal diffusivity m2s-1 for a new insulating material for which the
we are separating ethanol and water. all percentages are mol. find the q values and plot the feed lines. a feed is 60
A 0.3-L glass of water at 20°C is to be cooled with ice to 5°C. The melting temperature and the heat of fusion of ice at atmospheric pressure are 0°C and 333.7 kJ/kg, respectively, and the density of water is 1 kg/L.
in a chemical processing plant glycerin flows over a 1 m long heated at plate at free-stream conditions v 3 ms and t1
a 50 kg copper block initially at 350 c is quenched in a closed rigid insulated tank containing 120 l of liquid water
what is the cw when i10 per year of 1500 per year starting in year one and continuing forever and 10000 in year five
a differential thermocouple with sensors at the inlet and exit of a pump indicates that the temperature of water rises
An alternating copolymer is known to have a number-average molecular weight of 100000 g/mol and a degree of polymerization of 2210. If one of the repeat units is ethylene, which of styrene, propylene, tetrafluoroethylene, and vinyl chloride is the ot..
the only information you have about a proposed site for a wind farm is that the wind blows at speeds above 25 ms 90 hrs
a calculate the percentage volume change for a material being transformed from fcc to bcc. remember to assume the
a fireworks shell is launched vertically from point a with speed sufficient to reach a maximum altitude of 500 ft. a
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