Recent content by kwbake01

A heat pump that used R-22 operates as shown below. Assume SEER=1.15*EER. Find the amount of work that has to be put into the system to generate 15,000kwh of heat energy.

Now those are the poles with 1 real and two imaginary

for the denominator i but it into MATLAB and this is what i got >> p = [4 409 540 400]; % p(x) =4s^3+409s^2+540s+400 format long; % print double-precision roots(p) ans = 1.0e+002 * -1.009221534098646 -0.006639232950677 + 0.007416660864940i...

So for the numerator i get 4s(s+10) so then there's a zero at s=-10 and s=0?

instead of the 4 in the transfer function its 400 sorry about that Berkeman, how do you factor the transfer function? Thanks for your help so far

ok so the transfer function is (4s^2+40s)/(4s^3+409s^2+540s+4) now how do i sketch the bode plot? I know i have to convert the transfer function into a different form but how do i do that

It is a block diagram with no feedback so the two blocks above are in series

I gave you the wrong transfer function its from a block diagram that looks like this [4+(40/s)]---->[s^2/(s+100)(4s^2+5s+4)] if i could get the transfer function from that i think i know how to get the poles and zeros

How do I get the transfer functions of the following block diagrams a) [K(s+a)/(s+1)]--->[1/s(s+2)(s+3)] ...BLOCK 1....BLOCK 2 b) [4+(40/s)]--->[s^2/(s+100)(4s^2+5s+4)] ...BLOCK 1.....BLOCK 2 c) [a+(B/s)]---->[1/(s+1)] ...BLOCK 1...BLOCK 2

How would you plot the magnitude and phase Bode plots for the system transfer function of (4s^3+40s^2)/(4s^4+405s^3+504s^2+400s) I plugged it into MATLAB and got a result but my professor wants hand calculations. Thanks