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[EnergyPlus_Support] Re: Staging baseboard and reheat coil
Dear E+ Forum,
I'm finally evaluating output for the model which I want the baseboard
to act as the first stage of heating (reheat coil is the 2nd stage).
The baseboard is operating, the reheat coil is not operating (zero
flow), and the room is not reaching the setpoint temperature in the
heating season.
I'm using objects as shown below. May I have suggestions regarding
what's incorrect, please?
ZONE EQUIPMENT LIST,
ZoneEqList_Floors 3thru5,!- Name
BASEBOARD HEATER:WATER:CONVECTIVE, !- KEY--Zone Equipment Type 1
BasebdWtr_Floors 3thru5, !- Type Name 1
1, !- Cooling Priority 1
1, !- Heating Priority 1
AIR DISTRIBUTION UNIT, !- KEY--Zone Equipment Type 2
AirDistUnit_Floors 3thru5, !- Type Name 2
2, !- Cooling Priority 2
2, !- Heating Priority 2
ZONE EXHAUST FAN, !- KEY--Zone Equipment Type 3
ZoneEF_Floors 3thru5, !- Type Name 3
3, !- Cooling Priority 3
3; !- Heating Priority 3
AIR DISTRIBUTION UNIT,
AirDistUnit_Floors 3thru5, !- Air Distribution Unit Name
NodeIn_Zn_Floors 3thru5, !- Air Dist Unit Outlet Node Name
SINGLE DUCT:VAV:REHEAT, !- KEY--System Component Type 1
RhtCTRL_Floors 3thru5; !- Component Name 1
SINGLE DUCT:VAV:REHEAT,
RhtCTRL_Floors 3thru5, !- Name of System
SchCpct_AlwaysOn, !- System Availability schedule
NodeOut_VVDpr_Floors 3thru5, !- DAMPER Air Outlet Node
NodeOut_ZnSpltr_Floors 3thru5, !- UNIT Air Inlet Node
Autosize, !- Maximum air flow rate {m3/s}
0.3, !- Zone Minimum Air Flow Fraction
NodeIn_RhtWtr_ParkingLobbies, !- Control node
COIL:WATER:SIMPLEHEATING,!- Reheat Component Object
RhtCoil_Floors 3thru5, !- Name of Reheat Component
Autosize, !- Max Reheat Water Flow {m3/s}
0, !- Min Reheat Water Flow {m3/s}
NodeIn_Zn_Floors 3thru5, !- UNIT Air Outlet Node
0.001, !- Convergence Tolerance
NORMAL; !- Damper Heating Action
COIL:Water:SimpleHeating,
RhtCoil_Floors 3thru5, !- Coil Name
SchCpct_HtgAvail_AH1, !- Available Schedule
Autosize, !- UA of the Coil {W/K}
Autosize, !- Max Water Flow Rate of Coil {m3/s}
NodeIn_RhtWtr_Floors 3thru5, !- Coil_Water_Inlet_Node
NodeOut_RhtWtr_Floors 3thru5, !- Coil_Water_Outlet_Node
NodeOut_VVDpr_Floors 3thru5, !- Coil_Air_Inlet_Node
NodeIn_Zn_Floors 3thru5, !- Coil_Air_Outlet_Node
UA and Design Water Flow Rate, !- Coil Performance Input Method
Autosize, !- Nominal Capacity {W}
82.2, !- Design Inlet Water Temperature {C}
12.8, !- Design Inlet Air Temperature {C}
65.6, !- Design Outlet Water Temperature {C}
40.6; !- Design Outlet Air Temperature {C}
--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "JV Dirkes II" <jvd2pe@...>
wrote:
>
> Thanks, Matthew! I remember now about that prioritization within Zone
> Equipment List; we'll see how it works for this situation.
>
> --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Matthew Flannery"
> <matthew.flannery@> wrote:
> >
> > Have you tried looking at your zone equipment list? This only
works if
> > you're out of compact mode. In this tab you define your zone heating
> > priority for reheat coils and baseboard heaters.
> >
> >
> >
> >
> >
> > !- =========== ALL OBJECTS IN CLASS: ZONE EQUIPMENT LIST
===========
> >
> >
> >
> > ZONE EQUIPMENT LIST,
> >
> > Zone_1 Equipment, !- Name
> >
> > AIR DISTRIBUTION UNIT, !- KEY--Zone Equipment Type 1
> >
> > Zone_1 Reheat Coil, !- Type Name 1
> >
> > 2, !- Cooling Priority 1
> >
> > 2, !- Heating Priority 1
> >
> > BASEBOARD HEATER:WATER:CONVECTIVE, !- KEY--Zone Equipment Type 2
> >
> > Zone_1 Baseboard, !- Type Name 2
> >
> > 1, !- Cooling Priority 2
> >
> > 1; !- Heating Priority 2
> >
> >
> >
> >
> >
> > Matthew Flannery, LEED A.P.
> >
> > Mechanical Engineer
> >
> > Buro Happold Consulting Engineers, PC
> > 100 Broadway
> > New York, NY 10005
> > USA
> >
> >
> >
> >
> >
> >
> >
> > ________________________________
> >
> > From: EnergyPlus_Support@xxxxxxxxxxxxxxx
> > [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of JV Dirkes II
> > Sent: Sunday, April 27, 2008 8:02 PM
> > To: EnergyPlus_Support@xxxxxxxxxxxxxxx
> > Subject: [EnergyPlus_Support] Staging baseboard and reheat coil
> >
> >
> >
> > Dear E+ Forum,
> >
> > I'm trying to figure out how to make baseboard heating and a reheat
> > coil act as Stage 1 and Stage 2 of the zone's heating. Stage 2 (the
> > reheat coil) should stay off until the Baseboard (Stage 1) is at full
> > capacity.
> >
> > Thanks in advance.
> >
> >
> >
> >
> >
> > This message has been scanned by MailController -
> www.MailController.altohiway.com
> >
> >
> > [Non-text portions of this message have been removed]
> >
>
------------------------------------
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