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Explain how the three frequencies from Problem 1 will change with combustion temperature, chamber pressure, chamber length, chamber diameter, and throat diameter.
Problem 1
For a particular liquid propellant thrust chamber the following data are given:
Assume the gas composition and temperature to be uniform in the cylindrical chamber section. State any other assumptions that may be needed. Determine the approximate resonance frequencies in the first longitudinal mode, radial mode, and tangential mode.
Where 'k1' and 'k2' are rate constants,tR,maxis the time at which the maximum concentration of 'R' is obtain and CR,maxis themaximum concentration of 'R'
The feed enters the evaporator at 295 K. The total evaporation is to be 25000 kg/hr of water. Calculate the heat transfer area required and the steam consumption in kg/hr if overall heat transfer coefficient is 2800 W/m2.K.
Calculate the diffusion flux at 1027(C (1300 K) for the same concentration gradient and assuming an activation energy for diffusion of 125,000 J/mol.
The total series-field and armature-circuit resistances are 25 and 50 m Ω, respectively. The core loss is 220 W; friction and wind age loss is 40 W.
One hundred kilogram-moles per hour of a saturated liquid mixture of 12 mol% ethyl alcohol in water is distilled continuously by direct steam at 1 atm introduced directly to the bottom plate.
Suppose that John could work 365 days per year and could earn $200 per day for each day heworked. Draw his budget line with respect to his labor-leisure choice
A Hollow steel sphere contains 100 watt electrical filament inside it for heating. The other relevant data are as follows- Internal and external radius of the sphere = 0.24 and 0.32 m respectively.
Two different porous catalyst particles having equal surface to volume ratios and pore areas are used to carry out a liquid phase reaction with a first order reaction rate- one is disk-shaped with thickness B=4 mm and diameter d=48 mm while the other..
calculate the selectivity and the overall yield based on ethylene. The unreacted ethylene is not recovered.
Formulate arguments for and against the idea that risk assesment can and should be separated from risk management. Discuss land as a natural resource and how and why it is or should be regulated by environmental laws.
Demonstrate the principle of the Solovay and Strassen primality test on the number m = 33 The number m has been made small in this problem to keep the calculations simple. So, do not make use of numbers that "incidentally" have a factor in common ..
Calculate the mass percent of magnesium chloride in the mixture. Determine the minimum volume of silver nitrate that must have been added to ensure complete formation of the precipitate.
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