How to filter data corresponding to a limit?

I am trying to filter out temperatures above and below 58oF (limit), then use the filtered data for further coding (trying to evaluate heat transfer in a heat exchanger at temperatures above and below the limit)

example :

T2 = ([10 11 17 18])*9/5 + 32;

limit = (14.5*9/5)+32;

x = find(abs(T2)<limit)

y = find(abs(T2)>limit)

Q_before = m_return_air * Cp_air .* (T3 - x)

Any tips or help would be great. Thanks.

Tony

Answer 1

[Star Strider]

The ‘x’ and ‘y’ in your code are going to be the indices of the values you want. To get the actual values, this works:

TF = @(C) 1.8.*C + 32;                      % °C —> °F

TC = 0:20;                                  % Celsius Temperatures
Lim = TF(14.5);
T2 = TF(TC);

x = T2(T2>Lim);
y = T2(T2<Lim);

[Anthony]

Thank You so much kind sir !!!

[Star Strider]

As always, my pleasure!