[esp-r] Re: Enthalpy sensor
wakana-m at ec.hokudai.ac.jp
wakana-m at ec.hokudai.ac.jp
Thu Jan 9 08:52:21 GMT 2014
Dear all,
Hello.
I found the sensor of enthalpy at node in network flow.
Now I made a simple cubic model as a trial.
The model has three nodes, middle of room(internal), northern wall(bound
wind P)and southern wall(bound wind P).
I want to control of opening and closing of windows depend on the
enthalpy in outside.
In my model, ON/OFF control was used, and northern wall and southern
wall were specified as control node.
However, after I clicked "invoke simulation", "Continue!" was popped
onto the screen and the model couldn't be simulated.
In the simulator, error sentence was written;
CFFVAR: function 1 type 3
CFFVAR: invalid SSV for mass flow control type
Can I use this sensor for control of opening/closing windows?
If I can, how should I modify the model?
Any advice would be appreciated.
Version: 11.11
<<afn file>>
3 1 2 1.000 (nodes, components, connections, wind
reduction)
Node Fld. Type Height Temperature Data_1 Data_2
room 1 0 1.5000 20.000 0.0000 27.000
North 1 3 1.5000 0.0000 1.0000 0.0000
South 1 3 1.5000 0.0000 1.0000 180.00
Component Type C+ L+ Description
opening 30 2 0 Constant vol. flow rate component m = rho.a
1.0000000 1.38888890E-02
+Node dHght -Node dHght via Component
room 0.000 North 0.000 opening
room 0.000 South 0.000 opening
<<ctl file>>
no overall control description supplied
* Mass Flow
no flow control description supplied
1 # No. of controls
* Control mass 1
# senses node (1) room
-4 1 0 0 # sensor data
# actuates flow component: 1 opening
-4 1 2 # actuator data
1 # all daytypes
1 365 # valid Mon-01-Jan - Mon-31-Dec
1 # No. of periods in day: weekdays
3 0 0.000 # ctl type (enthalpy > flow), law (on/off setpoint
50.00 inverse action ON fraction 1.000.), starting @
3. # No. of data items
50.00000 -1.00000 1.00000
room North opening North
room South opening South
Best regards,
Wakana Matsumoto
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