bill wrote:

Don Ocean and and PJM are also invited to answer this hvac science and
engineering question. Please compare the drying rate to an outdoor
clothesline and include the effects of condensation, if anticipated.

For the sake of definiteness, if Greg wants to remove 12 pounds of water
from 12 pounds of clothes with 400 ft^2 of surface (both sides) in minimal
time in full sun in August in Key Largo, when it's 84 F and w = 0.0185,
using a 16'x16' R1 greenhouse with 90% solar transmission, how many cfm
of outdoor air should flow through the greenhouse?

Just what makes you think sci.engr.heat-vent-ac is interested or the
appropriate place to discuss clothes drying?

It's a matter of basic HVAC science and engineering. Chapter 28 of the
ASHRAE Applications handbook is all about drying, drying times, and so on.
The SCI.ENGR.heat-vent-ac group should eagerly welcome such basic questions.

What are your answers?

Nick