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<DIV><FONT size=2>Hello,</FONT></DIV>
<DIV><FONT size=2>I am working on a model of a lab building with a two-story
corridor along the east facade of the building. There is a large wall of glazing
on the east side and an opening between the floors to allow for
natural ventilation. I am attempting to model a vented sunspace using
DOE2.1e (using a Residential System with hot water heat -
RESYS) in order to take advantage of the mass wall along the west side of
the corridor. There is no direct venting to the surrounding zones (only free
circulation from the lower to the upper level with louvered openings to the
outside on each floor). The output file is indicating negative
cooling energy use for the sunspace system. There are two other systems that
require mechanical cooling, but the negative cooling energy in the sunspace is
offsetting this energy use which results in a negative overall value for the
building. My first thought was that heat transfer from the sunspace was cooling
the surrounding zones, but the zones with mechanical cooling are not directly
adjacent to the sunspace and have high internal loads. Does anyone have any
experience with this situation? I would appreciate any assistance.</FONT></DIV>
<DIV><FONT size=2>Thanks</FONT><FONT size=2>,</FONT></DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>Bill Talbert<BR>Mechanical Engineer<BR>USGBC LEED Accredited
Professional<BR>Affiliated Engineers, Inc.<BR></DIV><PRE>
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