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zhuzhuge

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[求助] 闪蒸计算 已有1人参与

谁有matlab编写关于闪蒸计算的程序或者例子
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bshao

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【答案】应助回帖

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zhuzhuge: 金币+20, ★★★很有帮助 2014-01-05 19:27:42
fegg7502: 金币+1, 应助指数+1, 鼓励交流 2014-01-06 08:20:38
% Authors: Nasri Zakia and Housam Binous

% Flash distillation using the SRK equation of state

function f=zakia2(x)

z=[0.025 0.35 0.60 0.025];
Pc=[709.8 617.4 550.4 489.5];
Tc=[550.0 665.9 765.3 845.6];
w=[0.1064 0.1538 0.1954 0.2387];
T=197.33+459.67;
P=20*14.696;
Tre=T./Tc;
Pre=P./Pc;
m=0.480+1.574.*w-0.176.*w.^2;
a=(1+m.*(1-Tre.^0.5)).^2;
Ap=0.42747.*a.*Pre./Tre.^2;
Bp=0.08664.*Pre./Tre;
for i=1:4
    for j=1:4
        Ab(i,j)=(Ap(i)*Ap(j))^0.5;
    end
end
Av=0;
for i=1:4
    for j=1:4
        Av=Av+x(i+4)*x(j+4)*Ab(i,j);
    end
end
Bv=0;
for i=1:4
        Bv=Bv+x(i+4)*Bp(i);
end
Bl=0;
for i=1:4
        Bl=Bl+x(i)*Bp(i);
end
Al=0;
for i=1:4
    for j=1:4
        Al=Al+x(i)*x(j)*Ab(i,j);
    end
end
Zv=max(roots([1 -1 Av-Bv-Bv^2 -Av*Bv]));
Zl=min(roots([1 -1 Al-Bl-Bl^2 -Al*Bl]));
phiv=exp((Zv-1).*Bp/Bv-log(Zv-Bv)...
    -Av/Bv*log((Zv+Bv)/Zv).*(2.*Ap.^0.5./Av^0.5-Bp./Bv));
phil=exp((Zl-1).*Bp/Bl-log(Zl-Bl)...
    -Al/Bl*log((Zl+Bl)/Zl).*(2.*Ap.^0.5./Al^0.5-Bp./Bl));
K=phil./phiv;

for i=1:4
    f(i)=x(i+4)-K(i)*x(i);
end
for i=1:4
    f(i+4)=x(i)-z(i)/(1+x(9)*(K(i)-1));
end
f(9)=0;
for i=1:4
    f(9)=f(9)+z(i)*(K(i)-1)/(1+x(9)*(K(i)-1));
end

SRK方程计算乙烷、丙烷、丁烷、戊烷闪蒸程序,地址http://www.mathworks.com/matlabc ... te/content/zakia2.m
2楼2013-12-30 16:59:04
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3楼2013-12-31 16:53:21
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zhuzhuge

铜虫 (小有名气)

引用回帖:
2楼: Originally posted by bshao at 2013-12-30 16:59:04
% Authors: Nasri Zakia and Housam Binous

% Flash distillation using the SRK equation of state

function f=zakia2(x)

z=;
Pc=;
Tc=;
w=;
T=197.33+459.67;
P=20*14.696;
Tre=T./Tc;
Pre=P./Pc ...

非常感谢
愿交流学习,与之共勉!
4楼2014-01-05 19:32:43
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