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<P><FONT size=2>Dan,<BR>Not sure if this is relevant, but have you factored in
the reheat load associated with dehumidifying using a cooling coil? That might
be where your getting the additional load. Also - if you are cooling sensibly
separately, you might want to dehumidify using a liquid desiccant system. This
could end up saving you a lot.<BR><BR><BR><!-- Converted from text/rtf format --></P>
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<P><FONT face=Arial color=#0000ff></FONT><BR>-----Original Message-----<BR>From:
bldg-sim@gard.com [<A
href="mailto:bldg-sim@gard.com">mailto:bldg-sim@gard.com</A>] On Behalf Of Dan
Johnson<BR>Sent: Monday, August 07, 2006 5:21 PM<BR>To:
bldg-sim@gard.com<BR>Subject: [bldg-sim] People load: BTUs vs
moisture<BR><BR>Hi,<BR>I'm designing an expensive residential dining room in
Shanghai that will be dehumidified using the required outside air through a
chilled-water coil and the room's sensible loads will be met using radiant
cooling from an exposed, chilled slab.<BR><BR>When I calculate the
cooling/dehumidifying load based on moisture output per person (using 0.235
lb/hr/person), I come up with a cooling capacity that is 245% of what I need if
I size the system to meet the heat output per person (250 latent + 250
sensible).<BR><BR>Why do the two approaches yield such different system
sizes? (Or:<BR>why<BR>do the BTU/hr/person numbers not correspond to the
pounds-of-moisture/hr/person numbers?)<BR><BR>Is my moisture load (0.235
lb/hr/person) a good assumption for sedentary dining in comfortable
conditions?<BR><BR>Does ASHRAE Fundamentals list a table of moisture
output/person in different conditions?<BR><BR>Thanks in advance.<BR><BR>--Dan
Johnson<BR><BR>Berkeley
CA<BR><BR><BR><BR>__________________________________________________<BR>Do You
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