Recent content by Will26040

Thanks for all your help! that's all very useful info. Ill get back to you if I find a better solution

Hi, thanks for your patience. I have attached the actual question; it still is T that I want to optimize, however you have to assume it varies non-linearly with the length- which is fixed at 2m. I have assumed the relationship ##T(z)=a+bz+cz^2## I am not sure if I am doing it right.

Thanks. This is the last question that involves coding, however, it does say you can consider the energy balance at the end. I think something is wrong with my code. I only seem to get one temperature in the output of x, but I am meant to be getting a temperature profile so that I can plot a...

okay thanks for all the help so far. Do you think it mostly looks right other than that?

I now have a second part which I was wondering if anyone could help me please. You have to assume that the temperature profile varies nonlinearly with length (z) of the reactor: ##T(z)=a+bz+cz^2## I have some code for it however I think it is wrong: A=[-1 0 0 ]; B=[0]; Aeq=[]; Beq=[]; LB=[]...

thanks that's what I got too. I didnt have to make any other changes

thanks to you both for the help, I think I've sorted it with your advice.

yep sorry didnt know about code blocks: function Main x0 = [100] OPTIONS = optimoptions('fmincon','Display','iter'); x = fminunc(@fun,x0,OPTIONS) end function obj = fun(x) T = x(1); Lspan = [0 2]; %reactor 2m long y0 = [700 0 0]; [L,y] = ode15s(@(L,y)...

The assignment is to find the optimal operating temperature and maximum product concentration of reactant B, assuming a constant temperature across the PFR length. Please could someone help? thanks the reaction is a series reaction: A → B → C (liquid phase) Here is my current code which is...

thankyou to you both!

Please could someone point me in the direction of an equation/ book I can use to obtain the convection coefficient for steam in a heating jacket. Steam is at 1 bar pressure. I think I need to use a dimensionless number. Thanks

Hi, I am designing a mash tun to produce beer. I have 1300kg of malted barley (at a known density) and 3250kg of water. Please could someone outline a method I could use as I am really struggling. One of the main problems I am having is accounting for the density change of the malt when it...

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I am trying to find an alternative tuning rule for use with the transfer function specified. Please could someone help by pointing me in the right direction, thanks. Process transfer function: ## \frac {27e^{-3s}} {30s+1} ## Also, am I right in thinking that this process transfer function is...

Thanks! do you have any idea on how I would check the accuracy of my obtained value? I am not sure where to find a literature value