Datakgp = 950m3Cy = 150Lmol·KMw.DMF = 73.1 gmmolViia = 2 m3T = 350 KT = 325 KX1 = 0.9kgw = 180minī = 0.6P = 1 barW1 = 200-minkgAntoine equation for DMF:Blog10 PEiE = A –C+T'with Psat[=] bar and T[=] KA = 3.93068B = 1337.716 C = -82.648 In this problem you will analyze the flash vessel in the diagram below where a polymer solution isconcentrated in a heated flash vessel. Stream 1 enters the tank with a volatile solvent (DMF) at a massfraction of x1, and the remaining mass is a non-volatile polymer. A heating coil is in place to maintain thetemperature of the liquid phase that provides energy at a rate Q. The total pressure in the vapor phase isheld constant at P = 1 bar by a flow of an inert gas that carries the DMF vapor away through stream 2,where the volatile solvent is present at a mass fraction of y2.Pure N2W2, Y2, TPT, xw, x, TW1,T1,X1olec1. What is the steady state heat flow Q and gas flow rate W, required to maintain the steady-stateconditions below? In measuring enthalpy changes, assume a reference state of 300 K.Derive the transfer functions between the outlet concentration x and the inlet temperature T,,the inlet concentration x1, and the energy put into the system through the heater Q.Which variable do you anticipate having a larger effect on the outlet concentration? Supposeeach input experiences a deviation by 5%, which would result in the largest change in the outlet2.3.concentration, x?4. Assume the concentration at the outlet is measured, and the only dynamics associated with themeasurement is a time delay of 30 sec, and the gain is Km = 10 mA/mass fraction = 10 mA.Using your favorite design scheme, design either a Pl or PID controller that manipulates theoutput of the heater to respond to deviations in the outlet concentration.5. Plot the response of the outlet concentration x and the heater input Q when the inletconcentration x, exhibits a step deviation from x, = 0.9 to x, = 0.95.Given assumptionsGas phase acts as an ideal gas, and the carrier gas has approximately the same molecular weightas the DMF (this means the mass fraction in the vapor phase is the same as the mole fraction)Mixing in the liquid phase is ideal (Lewis mixing)The energy lost from the liquid to the vapor phase is negligible in the energy balanceThe polymer is non-volatile (Polymer = 0)The liquid density and heat capacity is approximately independent of solvent concentration.

The reactions of N-methylformamide andN,N-dimethylformamide with OH and theirphoto-oxidation under…

Data p = 950 n³ T = 350 K 150L mol-K Mw.DMF = 73.1 gm mol Cy = Viia = 2 m3 kg w = 180- min T = 325 K P = 1 bar X1 = 0.9 %3D kg i = 0.6 W1 = 200- min %3D Antoine equation for DMF: в log10 PEF = A – C+T' , with Psat[=] bar and T[=] K A = 3.93068 B = 1337.716 C = -82.648

Data p = 950 n³ T = 350 K 150L mol-K Mw.DMF = 73.1 gm mol Cy = Viia = 2 m3 kg w = 180- min T = 325 K P = 1 bar X1 = 0.9 %3D kg i = 0.6 W1 = 200- min %3D Antoine equation for DMF: в log10 PEF = A – C+T' , with Psat[=] bar and T[=] K A = 3.93068 B = 1337.716 C = -82.648

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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