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Julie,<br>
I would recommend looking at some of Type56's energy balance outputs.
Your calculation ignores the energy that is being stored in the wall at
any given time, which can significantly throw off your energy balance.<br>
Kind regards,<br>
David<br>
<br>
<br>
Julien L'Hoest wrote:
<blockquote
cite="mid:f82b96010812010248j5ca231b1n763ca4e0eaa7a383@mail.gmail.com"
type="cite">Dear all,<br>
<br>
I just have a little question about the Transmission losses calculated
by type 56, the Q_UA output exactly. <br>
<br>
I use a kind of static model of a building to determine boiler/chiller
power in winter/summer. Here are the results: <br>
<br>
during winter:<br>
T_out = -12<br>
T_in = 21<br>
<br>
Transmission losses (Q_UA) = 166 kW<br>
<br>
During summer:<br>
T_out = 32<br>
T_in = 26<br>
<br>
Transmission losses = -3 kW<br>
<br>
I thougt Q_UA should be proportionnal to Delta T and then equal to
about -30 kW during summer. Does someone know how the Q_UA output is
calculated ? Is there any other output that I could use to make a
static energy balance instead of Q_UA ?<br>
<br>
Kind regards.<br>
<br>
Julie L.<br>
<br>
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