[Bldg-sim] Tacoma Washington General Climate

[Morgan Heater]

John - The Tacoma climate is very similar to Seattle.  The winters are
cool and wet, and the summers are cool and dry.  The proximity of the
Puget sound keeps the humidity in the comfort zone in general.  The
climate is definitely heating dominated, and cooling is unnecessary for
most occupancies, as long as some moderate amount of attention is paid to
the envelope design.  A useful climate visualization tool is "climate
consultant" a free software that you can download here:

http://www.energy-design-tools.aud.ucla.edu/

The psych chart is particularly useful for helping to identify strategies
for mechanical systems.

Morgan Heater, PE, LEED AP
Ecotope, Inc

(206) 322-3753 x209
4056 9th Avenue NE
Seattle, WA  98105

-----Original Message-----
From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Eurek, John S
NWO
Sent: Tuesday, September 07, 2010 11:21 AM
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] Tacoma Washington General Climate

To the group,

	I am starting an HVAC design project at Tacoma Washington (I live
in
Nebraska).  I can look up the ASHRAE design conditions, but I am wondering
if
somebody can give me a clearer picture of the climate.  (This goes with
the
change in thinking between designing for worst conditions and designing
for
year around energy savings.)
	I am looking for things to consider in my design.

Examples:  Here in Nebraska it gets really cold and hot and humid.  Due to
the jet stream the temperature can swing from the 20s to the 70s within a
week so the design must be able to react.
	I also finished a design in Colorado which I know is arid and dry.
Humidity usually a problem.

	I don't know exactly what I'm looking for, I am just not familiar
at
all about what to expect.  I think the humidity issue is something I would
like to know better.  (this may determine if I go with DX or chilled
water.)

Thank you for any help,

John Eurek PE, LEED AP
Mechanical Engineer,
US Army Corps of Engineers
Omaha District CENWO-ED-DA
1616 Capitol Avenue
Omaha, NE 68102
Phone: (402) 995-2134
email: john.s.eurek at usace.army.mil



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