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A metal-clad heating element of 6-mm diameter and emissivity s = 1 is horizontally immersed in a water bath. The surface temperature of the metal is 255°C under steady-state boiling conditions. Estimate the power dissipation per unit length of the heater.
Air enters a one-inlet, one-exit control volume at 6 bar, the pressure is 3 bar, the temperature is 456.5 K, and the velocity is 300 m/s. The air behaves as an ideal gas for steady-state operation, determine: (a) the mass flow rate in kg/s (b) the ex..
Compare the inlet steam mass and volume flow rates in pound mass per second and cubic feet per second of (a) a fossil-fuel power plant turbine having a polytropic efficiency of 0.90 and receiving steam at 2400 PSIA and 1000F and (b) a nuclear power p..
three kg of gas in a piston cylinder assembly undergo a process during which the relationship between pressure and
explain the tapping operation and the steps to follow peripheral milling is performed on the top surface of a
A 1200 MW power plant has a thermal efficiency of 39%. Find: (a) the rate of heat addition to the cycle (b) the rate of heat rejection from the condenser [(a) 1.05 x 10^10 Btu/hr; (b) 6.4 x 10^9 Btu/hr]
apple juice at 20c is siphoned from a large tank using a constant-diameter hose. the end of the siphon is 1m below the
A continuous and aligned fiber-reinforced composite has a cross-sectional area of 500 mm2 and is subjected to a longitudinal load of 50,000 N. The composite is 25 vol % fiber 75 vol% polycarbonate matrix. Calculate the fiber–matrix load ratio.
jack who weighs 150 lbf runs 5 miles in 43 minutes on a treadmill set at a one-degree incline. the treadmill display
Saturated liquid steam at 2 MPa steadily enters a valve where it is throttled to 0.3 MPa. The inlet and outlet diameter is 1 cm. The flow rate is 0.012 kg/s. Determine the outlet density [kg/m3] of the steam. Also show that it is reasonable to neglec..
a steam turbine has an inlet pressure of 1200 kpa and temperature of 400 degc. the steam exits the turbine at a
atmospheric air at 98 kpa and 30degc flows into an air conditioning system with a volume flow rate of 2 m3min. to
What are the typically used thermo set composite resins, and what fiber are they commonly reinforced with?
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