Effectiveness correlations are presented which allow the designer to predic
t the sensible, latent and total effectiveness of energy wheels when the op
erating conditions are known. The correlations agree with simulation data w
ithin +/-2.5% for sensible, latent and total effectiveness when the desicca
nt coating on the energy wheel has a linear sorption curve. The sensitivity
of the sorption curve and operating condition factor are studied and the u
se of the design correlations is shown with an example. (C) 1999 Elsevier S
cience Ltd. All rights reserved.