중합공정의 전산모사(Computer Simulation)실험

목차

목차

Ⅰ. 서론

Ⅱ. 이론
1. 반응속도와 속도상수
2. 반응물의 점도
3. 반응기의 교반과 열전달 특성

Ⅲ. 실험장치 및 방법
1. 실험장치
2. 실험방법

Ⅳ. 실험결과 및 고찰
1. 온도에 따른 Reynolds Number의 변화
2. 시간에 따른 분자량의 변화
3. 시간에 따른 Viscosity의 변화
4. 시간에 따른 총괄열전달 계수의 변화
5. 시간에 따른 Shaft Work의 변화

Ⅴ. 결론

Ⅵ. 사용기호

Ⅶ. 참고문헌

본문내용

Ef = activation energy for viscosity change with temperature, Joules
f = efficiency of initiator, dimensionless
f(μ) = viscosity correction factor, dimensionless
hi,ho = inside and outside heat transfer coefficient, Joules/(cm2sK)
-ΔHp = heat of polymerization, Joules/gmole
I = concentration of initiator, gmoles/liter
If = concentration of initiator in feed, gmoles/liter
k = thermal conductivity of reaction mixture, Joules/(cmsK)
kd = reaction rate constant for initiator decomposition, s-1
ki = reaction rate constant for thermal initiation,liter2/(gmol2s)
kp = reaction rate constant for propagation, liter/(mols)
ktc = reaction rate constant for termination by combination, liter/(mols)
ktd = reaction rate constant for termination by disproporsionation, liter/(mols)
M = concentration of monomer, gmoles/liter
Mf = concentration of monomer in feed, gmoles/liter
Mn, Mw = number and weight average molecular weight, g/gmol
N = speed of agitation, rotation/s
Nu = Nusselt number, dimensionless
P = concentration of polymer, gmoles/liter
P0 = steady state polymer concentration at the feed temperature, moles/liter
Pr = Prandtl number, dimensionless
q = volumetric flow rate of feed and product, liter/s
R = universal gas constant, Joules/(gmoleK), or
concentration of free radical, gmoles/liter
Rf = concentration of free radical at the feed condition, gmoles/liter
Re = Reynolds number, dimensionless
T = temperature of the reaction mixture, K
Tf = temperature of the feed, K
Tj = temperature of the cooling jacket, K
t = time, s
u = average kinematic chain length
U = overall heat transfer coefficient, Joules/(cm2sK)
Ws = agitator power, watts
X1 or X = dimensionless monomer concentration
X2 = dimensionless initiator concentration
X3 = dimensionless temperature
X4 = dimensionless polymer concentration
X5 = dimensionless 1-st moment of molucular weight distribution
X6 = dimensionless 2-nd moment of molucular weight distribution
XR = dimensionless radical concentration
Ⅶ. 참고문헌
1) G. Odian, Principles of Polymerization, 2nd ed, John Wiley and Sons, Inc, 1981
2) J.M.Smith, Chemical Engineering Kinetics, Mcgraw-Hill book Company, 1981.
3) Morton M. Denn, Process Fluid Mechanics, PTR

키워드

cstr,   전산모사실험,   Poly-Styrene 중합