Since you have the inlet tempreture and all the fluid properties you can calculate the effictiveness of the heat exchanger where E=q/qmax
and then calculate the heat capacity ratio Cr
And the overall heat transfer coefficient U
Then by using E-NTU method u will have NTU=UA/Cmin
where NTU can...
I'm new on MATLAB and I need to find the value that make the derivative of a function = 0 in order to find the maximum of my function
I started by defining the variable T
>> syms T
Then I but my function
>> f=((((cos(T))^2+(sin(T)*cos(T)))^2)+3*(((sin(T))^2+(sin(T)*cos(T)))^2))^(0.5)...
I try this but i don't no if it is right
J=I/A=100*10^-9 /0.5*1
also J=(ne) V
then ne(q)=J/v
and then i take the q as the surface charge density
and it well = 5*10^-9
I need the answer to this question
A charge belt, 50cm wide, travels at 40m/s between a source of charge and a charging object at a rate corresponding to 100microA . Compute the surface charge density on the belt
Some one told me the answer may be 5 microC/m2 but how ??