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Jiang,<br>
The first method is the correct one. The heating and cooling types
that are built into Type56 are idealized and are intended to
calculate the energy required to keep the space at a given
temperature. The resulting loads give you an idea of the size of
equipment needed to maintain those set points. By defining a
thermostat and a delivery device you are able to calculate the
actual energy required (accounting for the non-idealities of the
equipment, the controls, and the delivery). Make sure that when you
define your equipment and use the ventilation type for delivery you
also reduce your simulation timestep to something reasonable for
making control decisions (1 minute or 5 minutes probably).<br>
best,<br>
David<br>
<br>
On 4/13/2011 13:27, Jay Zhu wrote:
<blockquote
cite="mid:BANLkTik6D=Sg6TgJAtk2FFKOdPBGcMJP4w@mail.gmail.com"
type="cite">Dear All:<br>
<br>
I have a question about the connection between the external
heating and cooling source, such as water source heat pump, air
source heat pump , and the building type 56, i tried two methods
to simulate .<br>
1, use the ventilation, supplied air flow ,air T, Humidity<br>
2, use the heating and cooling type, supplied cooling power and
heating power. <br>
From the manual , either way should work, However, the results for
the two cases have a big difference in my simulation. <br>
<br>
Does anyone know the reasons or have some relative experience?
Thank you in advance！<br>
<br>
Best <br>
<br>
Jiang <br>
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