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(a) What should be the approximate percent ullage volume for nitrogen tetroxide tank when the vehicle is exposed to ambient temperatures between about 50? F and about 150? F?
(b) What is maximum tank pressure at 150? F.
(c) What factors should be considered in part (b)?
How do the ratios determined in parts (a) and (b) compare? What does this tell you about which range may have more areas of practical application?
Select a process variable (pressure / temperature / level / flow) and conduct a literature survey to determine recent developments in process instrumentation field. Identify any one novel instrument and explain in detail the working of the instrument..
For a feed rate 2000 kg/h of solution, composition 30% w/w MEK, determine the number of stages required to recover 95% of the dissolved MEK, using 700 kg/h TCE, with countercurrent flow. Tie-line data for the system MEK-water-TCE percentages w/w, ..
Steam enters a nozzle at 800 kPa and 553.15 K (280°C) at negligible velocity and discharges at a pressure of 525 kPa. Assuming isentropic expansion of the steam in the nozzle,
1. find laplace transforms of the following functions where a b and c are constants.a. a bt ct2b. asin2tc.nbsp e-3t2.
Does fermenting vegetables increase the natural citric acid content since all fruits and vegetables contain it? Thanks for any help you can offer.
A suitable storage place must be geologically stable long enough for the activity of plutonium-239 to decrease to 0.1% of its original value. How long is this for plutonium-239?
The finite element method uses polynomial approximations on the finite element. We have used only first-order polynomials. Discuss the possibility and the advantages of using higher-order approximations.
What is the settling velocity in still air of a particle that is 40 µm in diameter and spherical? The particle has a density of 1400 Kg/m3. Use a density of 1.2 Kg/m3 and a viscosity
What is the gas-phase composition if pure methane enters the reactor, and what fraction of the methane decomposes?
A fluid undergoes the Carnot cycle in Figure 4-5 with TL = 300 °C, TH = 500 °C. Calculate the amounts of heat and work for each step, as well as the thermodynamic efficiency of the cycle (net amount of work produced over amount of heat absorbe..
The exhaust pressure of the first turbine is 5.0 bars. The steam is then reheated to 440C. The condenser operates at one bar. Make-up is added at the condenser. Determine thermal efficiency of the cycle.
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