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Consider an air-standard cycle for the turbojet power plant shown in Fig. 8.13. The temperature and pressure of the air entering the compressor are 1 bar and 303.15 K (30°C). The pressure ratio in the compressor is 6.5, and the temperature at the turbine inlet is 1373.15 K (1 100°C). If expansion in the nozzle is isentropic and if the nozzle exhausts at 1 bar, what is the pressure at the nozzle inlet (turbine exhaust) and what is the velocity of the air leaving the nozzle?
If a mixture of 5.0 g of hydrogen and 10. g of methane is burned, and the heat released is transferred to 50.0 g of water at 25.0C, what final temperature will be reached by the water?
The maximum possible purity of glycol in the finished extract and the maximum purity of water in the raffinate for one equilibriumstage.
Neglecting stator resistance and rotational losses, and assuming constant rotor resistance, determine the slip at maximum torque and the slip at full load.
In a device to produce potable water, humid air at 90°F, 29.7 in Hg, and 95% relative humidity iscooled to 40°F at constant pressure. What volumetric flow rate of air into the cooler (ft3/min) isrequired to provide 10.0 gal/min of condensed water?
Solve Example Problem 4.5 for forearm orientations angled u from the horizontal position. Let u vary from 0708 (down) from the horizontal in 158 increments. Using MATLAB, plot the required biceps muscle force FB for static equilibrium as a functio..
Estimate the ratio of molar stream flow rates L/V exiting the flash chamber
What pressure would you choose for operation of the fermenter, and how would you control it?
1 kg of liquid water, initially at 40 °C, 2 bar, is heated under constant pressure. If the amount of heat added is 1200 kJ, determine the final temperature and the phase of the system in the final state (if vapor-liquid mixture, report the mass fr..
Make a rough estimate of the cost of steam per ton, produced from a packaged boiler. 10,000 kg per hour of steam are required at 15 bar. Natural gas will be used as the fuel, calorific value 39 MJ/m3 (roughly 1 MMBtu/1000 scf). Take the boiler eff..
A Rankine power plant using steam operates between pressures 60 bar and 1.013 bar. The turbine expands steam from 500 °C, 60 bar, to 1.013 bar. The liquid at the exit of the condenser is saturated. The efficiency of the turbine and of the pump is ..
The burner is fitted with a cooling jacket, which cools the exit gases to 200 °C. The gases are further cooled, to 50°C, in an external heat exchanger.
The following liquids, all at atmospheric pressure and 322.15 K (49"C), are mixed: 11.3 kg of pure water, 40 kg of pure sulfuric acid, and 34 kg of 25 mass-% sulfuric acid.
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