coldbox_performance_factor

Computes coldbox performance where value above 1 is alerting.

formula

Computed only if any tower is active:

coldbox_performance_factor = 83 * PDT603 / ((PT603 + 14.7) * (TE504 + 459))

83 is correction factor 14.7 is standard atm pressure base level 459 is conversion for https://en.wikipedia.org/wiki/Rankine_scale