Possible Error in Explanation of e4_heat_exchanger

[wslee225]

In the part of the explanation about the 'error' calculation using Q is possibly incorrect, as follows:

dT_min is, as assumed, close to zero. However, the error is very large.
The error is calculated as follows: (Q_ntu / Q - 1) * 100.
Q is the amount of heat required to be transported, Q_ntu is
the amount possible to transfer according to NTU method.
This means, a negative value of 100 means we could transport 2 times
less heat than we want to.
Thus, we have to iterate the pressure assumptions and lower it,
as we need a higher temperature difference to the air.
For this, we will use a loop:
...

a negative value of 100 would result Q_ntu = 0.
Therefore, a negative value of 50 would correspond to 2 times less heat being transported than desired.

[FWuellhorst]

@wslee225 Thanks for catching this, I fixed it in #20 . Does this address your issue, or are other descriptions wrong/misleading?

[wslee225]

Yes, that was it. Appreciate your quick response!