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For the methanol synthesis process illustrated in Fig. 4-1, Example 1, assume that there are algorithms for calculating the outputs of each process unit from the inputs. Determine how many stream variables must be specified and decide what these should be so that a unique solution exists for the mass and energy balances. Identify all recycle loops, tear streams for these loops, and a calculation sequence.
Example 1
Estimation of fixed-capital investment using ranges of process-plant component costs. Make a study estimate of the fixed-capital investment for a process plant if the purchased-equipment cost is $100,000. Use the ranges of process-plant component cost outlined in Table 4 for a process plant handling both solids and fluids with a high degree of automatic controls and essentially outdoor operation.
Taking the stator resistance to be 2.0 Ω, friction and wind age loss to be 7 W, and assuming Xl1 = X'l2, determine the parameters of the double revolving-field equivalent circuit.
Assume liquid water as a product of combustion. Which of the following natural gases has the highest heat of combustion?
A stream of 5.00 wt% oleic acid in cottonseed oil enters an extraction unit at a rate of 100.0 kg/hr. A separate stream of propane enters the unit. Propane is able to dissolve oleic acid but cannot mix with the cottonseed oil. Two streams exit the un..
Figure P6.1.39 shows a full adder with the idea of adding Ci to the partial sum S' , which is the same logic process as addition with pencil and paper.
Calculate equilibrium products at 500K for the reaction of 1 mole CO and 1 mole H2O according to the water-gas shift reaction (CO • H2O CO2 • H2) as a function of temperature four ways
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 ..
The ship must unload 1000 metric tons within 5 hours to avoid demurrage charges. Estimate the power required by the pump. Take the pump efficiency as 70%. Physical properties of toluene: density 874 kg/m3, viscosity 0.62 mNm-2
Calculate the value of Kc for the reaction Ag+(aq) + Cl-(aq) → AgCl(s) if the concentrations at equilibrium are [Ag+] = 10-8M, [Cl-] = 0.01M.
Is the resulting solution neutral? If not, calculate the concentration of excess H or OH ions left in solution.
Determine which of the following 3 material substrates would have the best R-value or lowest thermal conductivity. The purpose is to determine which of the 3 materials would make the best insulator to heat and cold?
wave-connected. (Note: The number of parallel paths is equal to the number of poles for lap windings, while it is equal to 2 for wave windings.)
2. Alcohol is a diuretic agent, which increases urine production by reducing water reabsorption. Normal rate of water reabsorption is about 124 ml/min. Assume that the effect of alcohol on water reabsorption (in ml/min) is given by the following equa..
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