| 'csv' data |
|
Screen data (in 'csv' format, Am or Eu),
ignored (though necessary) if a file is uploaded. |
From Excel file (uploaded '.xlsx'
or inserted '.csv'), computes, for a given cooling tower:
(a) kG, the
'global mass-transfer coefficient', kG ≅
L cL ⁄ (ρ Z a) ×
(Integral of Merkel equation); and (b) the
ratio ΔP⁄Z ([Ludwig, 1997]).
The coefficient and the ratio, for a given
cooling tower, are both usually adopted as empirical relations
of the form k L'α
G'β . So, k, α and
β are calculated here for either case.
Warning: due to execution on the Internet,
run times are limited to ~1 min.
Draws two plots: an upper plot with the values of
L' and G' sorted by ascending L' (first) and
G' (second); and a lower plot of the corresponding
experimental and calculated values of
(according to "which adjustment")
either the coefficient kGa
or ΔP⁄Z
from experimental data. |
• Ludwig, Ernest E., 1997,
"Applied process design for chemical and petrochemical plants",
vol. 2 (Ch. 8, Distillation; Ch. 9, Packed towers), 3.rd ed.,
Butterworth-Heinemann, Woburn, MA (USA), xx+485 pp. ISBN 0-88415-025-9 (p. 387 ff).
• Merkel, F., 1925,
"Verdunstungskühlung", VDI-Zeitschrift, 70, 123–8
(VDI Forschungsarbeiten, nr. 275, Berlin),
in [Picardo & Variyar, 2012].
('Verdunstung', evaporation; 'Kühlung', cooling)
• Google: cooling tower
• (Wikipedia) Cooling tower rules.
• 1907-04-11: Scheffé, Henry
(†1977-07-05, 70 yrs.). |
