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1. A fuel-rich solid propellant for a gas generator drives a turbine of a liquid propellant turbopump. Determine its mass flow rate. The following data are given:
Windage and bearing friction is 10 kW. Neglect start transients.
2. The propellant for this gas generator has these characteristics:
Determine the size of an end-burning cylindrical grain.
If this alternator is to generate 60-Hz voltages, find the new synchronous speed, and calculate the new terminal voltage for the same field current.
Comment on whether the device is operating in the depletion mode or in the enhancement mode.
A stream that contains a methanol/ethanol mixture with 32% mol methanol is flashed to 100 °C to a pressure such that the molar rate of the vapor stream is 75% of the feed. Determine the temperature and the composition of the two phases.
Calculate the amount of heat needed to raise the temperature of the solution to 40 °C under constant pressure of 1 bar.
Find the rated and maximum torques.
If heat rejection is at 313.15 K (409C), what is the lowest temperature the system can possibly maintain?
Calculate the molar fraction of the system in the vapor phase
Find the corresponding diffusion current.
Calculate the amount of work and the final temperature if compression is reversible.
Fresh halibut livers containing 25.7 wt % oil are to be extracted with pure ethyl ether to remove 95% of the oil in a countercurrent multistage leaching process. Calculate the amounts and compositions of the exit streams and the total number of the..
A vapor-liquid mixture of water containing 50% liquid is throttled from 20 bar to 0.1 bar. What is the temperature at the exit? If a vapor-liquid mixture, report the liquid fraction.
Consider a 240-V supply feeding a resistive load of 10 kW through wires having a total resistance of R = 0.02 Ω. For the same load, let a 120-V supply be used with a total wire resistance of R/2 = 0.01 Ω. Compute the I2 R loss in the lines for bot..
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