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[EnergyPlus_Support] Re: DOAS with fan coil



Thank you very much, Jean! Can anyone who has used the DOAS template comment?

Cheers,
Liam

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Jean marais" <jeannieboef@...> wrote:
>
> Here's a bit of code that includes
> 1) fancoil
> 2) the hvac part of the radiant system (not plant side or in which construction it is placed)
> 3) zone:exhaust object
> 
> -----------------------------------
> 
> ZoneHVAC:EquipmentConnections,
>   U12,                                    !- Zone Name
>   U12Equipment,                           !- Zone Conditioning Equipment List Name
>   U12 Zone Inlet Nodes,                   !- List Name: Zone Air Inlet Nodes
>   U12 Exhaust Air Nodes,                  !- List Name: Zone Air Exhaust Nodes
>   U12 Zone Air Node,                      !- Zone Air Node Name
>   U12 Return Outlet;                      !- Zone Return Air Node Name
>   
>   NodeList,  !Zone Exhaust Outlets (not Airloop Return)
>     U12 Exhaust Air Nodes,             !- Name
>     U12 WC Exhaust Air Node,
>     FC U12 Exhaust Air Node;  !- Node 1 Name !Mixing Box to Zone connection  AND FC air inlet node
> 
>   NodeList,   !Zone Inlets
>     U12 Zone Inlet Nodes,             !- Name
>     U12 Supply Inlet,
>     U12 Heating Coil Air Outlet;  !- Node 1 Name
>     
> OutdoorAir:NodeList,
>   FC U12 Outdoor Air Node;                       !- Node or NodeList Name 1
>     
> ZoneHVAC:EquipmentList,
>   U12Equipment,                           !- Name
>   ZoneHVAC:AirDistributionUnit,                            !- Zone Equipment 1 Object Type
>   U12 ATU,                                !- Zone Equipment 1 Name
>   4,                                                       !- Zone Equipment 1 Cooling Sequence
>   4,                                                       !- Zone Equipment 1 Heating or No-Load Sequence
>   ZoneHVAC:LowTemperatureRadiant:VariableFlow,             !- Zone Equipment 2 Object Type
>   U12 RF,                                 !- Zone Equipment 2 Name
>   1,                                                       !- Zone Equipment 2 Cooling Sequence
>   1,                                                       !- Zone Equipment 2 Heating or No-Load Sequence 
>   Fan:ZoneExhaust,                                         !- Zone Equipment 3 Object Type
>   U12 XFan WC,                            !- Zone Equipment 3 Name
>   3,                                                       !- Zone Equipment 3 Cooling Sequence
>   3,                                                       !- Zone Equipment 2 Heating or No-Load Sequence
>   ZoneHVAC:FourPipeFanCoil,                                !- Zone Equipment 3 Object Type
>   FC U12 Fan Coil,                        !- Zone Equipment 3 Name 
>   2,                                                       !- Zone Equipment 3 Cooling Sequence
>   2;                                                       !- Zone Equipment 3 Heating or No-Load Sequence 
> 
> 
>  
>   ZoneHVAC:LowTemperatureRadiant:VariableFlow,
>     U12 RF, !- Name
>     On,   !- Availability Schedule Name     U12 RF Availability Sch
>     U12,    !- Zone Name
>     U12_GroundFloor_0_0_0,          !- Surface Name or Radiant Surface Group Name
>     0.012,                   !- Hydronic Tubing Inside Diameter {m}
>     autosize,                !- Hydronic Tubing Length {m}
>     MeanAirTemperature,      !- Temperature Control Type
>     autosize,                !- Maximum HW Water Flow {m3/s}
>     U12 RF HW Inlet Node,    !- HW Water Inlet Node Name
>     U12 RF HW Outlet Node,   !- HW Water Outlet Node Name
>     0.50,                    !- Heating Control Throttling Range {deltaC}
>     RF Heating Supply Temperature,                  !- Heatinging Control Temperature Schedule Name
>     0.0,                !- Maximum CW Water Flow {m3/s} !ChW is turned off
>     U12 RF Inlet,  !- CW Water Inlet Node Name
>     U12 RF Outlet,  !- CW Water Outlet Node Name
>     2.00,                     !- Cooling Control Throttling Range {deltaC}
>     U12 AHU Cooling SP Sch,   !- Cooling Control Temperature Schedule Name
>     SimpleOff, ! condensation control type
>     0.0; ! condensation control dewpoint offset
>     
>     
> !!!!!!!!!!!!!!!!!!FC START
> ZoneHVAC:FourPipeFanCoil,
>   FC U12 Fan Coil,                                       !- Name
>   FC Sch,                                                  !- Availability Schedule Name
>   ConstantFanVariableFlow,                                 !- Capacity Control Method
>   30,                                                      !- maximum air flow rate {m3/s} !GET THE TOTAL FC m³/h ...this value gives realistic results
>   0.9,                                                        !- Low Speed Supply Air Flow Ratio
>   0.99,                                                        !- Medium Speed Supply Air Flow Ratio
>   0,                                                       !- maximum outside air flow rate {m3/s}
>   Off,                                                     !- Outside Air Schedule Name
>   FC U12 Exhaust Air Node,                 !- Air Inlet Node Name 
>   U12 Heating Coil Air Outlet,             !- Air Outlet Node Name 
>   FC U12 Outdoor Air Node,                 !- Outdoor Air Node Name
>   FC U12 Relief Outlet,                    !- Relief Air Node Name
>   FC U12 OA Mixing Box,                    !- Outdoor Air Mixer Name
>   FC U12 Supply Fan,                       !- Fan Name
>   FC U12 Cooling Coil,                     !- Cooling Coil Name
>   0.0334,                                                !- maximum cold water flow {m3/s}
>   0.0334,                                                       !- minimum cold water flow {m3/s}
>   0.001,                                                   !- Cooling Convergence Tolerance
>   FC U12 Heating Coil,                     !- Heating Coil Name
>   autosize,                                                !- maximum hot water flow {m3/s}
>   0,                                                       !- minimum hot water flow {m3/s}
>   0.001,                                                   !- Heating Convergence Tolerance
>   Coil:Cooling:Water;                                      !- Cooling Coil Object Type
> 
> OutdoorAir:Mixer,
>   FC U12 OA Mixing Box,                    !- Name
>   FC U12 Mixed Air Outlet,                 !- Mixed Air Node
>   FC U12 Outdoor Air Node,                 !- Outside Air Stream Node  !needs its own connection to OD
>   FC U12 Relief Outlet,                    !- Relief Air Stream Node !not connected to Airloop
>   FC U12 Exhaust Air Node;                 !- Return Air Stream Node
> 
> 
>  
> 
> Fan:ConstantVolume,
>   FC U12 Supply Fan,                       !- Fan Name
>   FC Sch,                                                  !- Availability Schedule Name
>   0.7,                                                     !- Fan Efficiency
>   75,                                                      !- Delta Pressure {Pa}
>   30,                                                !- Max Flow Rate {m3/s}
>   0.9,                                                     !- Motor Efficiency
>   1,                                                       !- Motor in Airstream Fraction
>   FC U12 Mixed Air Outlet,                 !- Fan Inlet Node
>   FC U12 Supply Fan Outlet;                !- Fan Outlet Node Name
> 
> 
> 
> Coil:Cooling:Water,
>   FC U12 Cooling Coil,                                   !- Name
>   FC Sch,                                                  !- Availability Schedule Name
>   0.0334,                                                  !- Design Water Flow Rate of Coil {m3/s}
>   30,                                                      !- Design Air Volume Flow Rate {m3/s}
>   16,                                                      !- Design Inlet Water Temperature {C}
>   28,                                                      !- Design Inlet Air Temperature {C}
>   22,                                                      !- Design Outlet Air Temperature {C}
>   0.019,                                                !- Design Inlet Air Humidity Ratio {kg-H2O/kg-air}
>   0.018,                                                !- Design Outlet Air Humidity Ratio {kg-H2O/kg-air}
>   FC U12 Cooling Coil ChW Inlet,                         !- Coil Water Inlet Node
>   FC U12 Cooling Coil ChW Outlet,                        !- Coil Water Outlet Node
>   FC U12 Supply Fan Outlet,                              !- Air Inlet Node Name
>   FC U12 Cooling Coil Outlet,                            !- Air Outlet Node Name
>   DetailedAnalysis,                                        !- Type of Analysis
>   CrossFlow;                                               !- Heat Exchanger Configuration
> 
>   Branch,
>     U12 FC Clg Branch,  !- Name
>     0.0334,                        !- Maximum Flow Rate {m3/s}   q = h[kW] / ((4.2 kgoC) (1000 kg/m3) dt)    q = 561.850 / (4.2 * 1000 * 4)
>     ,                        !- Pressure Drop Curve Name
>     Coil:Cooling:Water,  !- Component 1 Object Type
>     FC U12 Cooling Coil,    !- Component 1 Name
>     FC U12 Cooling Coil ChW Inlet,  !- Component 1 Inlet Node Name
>     FC U12 Cooling Coil ChW Outlet,  !- Component 1 Outlet Node Name
>     Active;                  !- Component 1 Branch Control Type
> 
> Coil:Heating:Water,
>   FC U12 Heating Coil,                                   !- Name
>   On,                                                     !- Availability Schedule Name
>   autosize,                                                !- UA of the Coil {W/K}
>   autosize,                                                !- Max Water Flow Rate of Coil {m3/s}
>   FC U12 Heating Coil HW Inlet,                          !- Coil Water Inlet Node
>   FC U12 Heating Coil HW Outlet,                         !- Coil Water Outlet Node
>   FC U12 Cooling Coil Outlet,                            !- Air Inlet Node Name
>   U12 Heating Coil Air Outlet,                                   !- Air Outlet Node Name
>   UFactorTimesAreaAndDesignWaterFlowRate,                  !- Performance Input Method      
>   autosize,                                                !- Rated Capacity
>   82.2,                                                    !- Rated Inlet Water Temperature
>   16.6,                                                    !- Rated Inlet Air Temperature
>   71.1,                                                    !- Rated Outlet Water Temperature
>   32.2,                                                    !- Rated Outlet Air Temperature
>   1.0;                                                     !- Rated Ratio for Air and Water Convection
> 
> 
> 
> 
> 
> 
> !!!!!!!!!!!!!!!!!!FC END
>     
>     
> !See HVAC
> ! 'BBI FGT Slab - U-1,48'
>   Construction:InternalSource,
>     RF_Slab,                       !- Name
>     2,                       !- Source Present After Layer Number
>     2,                      !- Temperature Calculation Requested After Layer Number
>     1,                       !- Dimensions for the CTF Calculation
>     0.1,                     !- Tube Spacing {m}
>     1_2_10003,                                  !- BBI Slab 200 mm Cast Concrete (.2m)      
>     1_1_103,                                       !- XPS Extruded Polystyrene  - CO2 Blowing (.0098m)
>     3_1_45;                                        ! Aluminium806 - thickness 0,0015 solid 0% open
>     
> ! 'BBI FGT Slab - U-1,48 <reverse>'
>   Construction,
>     RF_Slab_R,                       !- Name
>     1_2_10003,                                    !- BBI Slab 200 mm Cast Concrete (.2m)   
>     1_1_103,                                      !- XPS Extruded Polystyrene  - CO2 Blowing (.0098m)
>     3_1_45;                                       ! Aluminium806 - thickness 0,0015 solid 0% open   
> 
> ! BBI Slab 200 mm Cast Concrete806 - thickness 0,2
> Material,1_2_10003,                               !- Material name
>    Rough,                                         !- Roughness
>     .2,                                           !- Thickness {m}
>    1.13,                                          !- Conductivity {w/m-K}
>    2000,                                          !- Density {kg/m3}
>    1000,                                          !- Specific Heat {J/kg-K}
>    .9,                                            !- Thermal Emittance
>    .7,                                            !- Solar Absorptance
>    .7;                                            !- Visible Absorptance
>    
> ! XPS Extruded Polystyrene  - CO2 Blowing806 - thickness 0,0098
> Material,1_1_103,                                 !- Material name
>    Rough,                                         !- Roughness
>     .0098,                                        !- Thickness {m}
>    0.034,                                         !- Conductivity {w/m-K}
>    35,                                            !- Density {kg/m3}
>    1400,                                          !- Specific Heat {J/kg-K}
>    0.9,                                           !- Thermal Emittance
>    0.6,                                           !- Solar Absorptance
>    0.6;                                           !- Visible Absorptance
>    
> ! Aluminium806 - thickness 0,0015 solid 0% open
> Material,3_1_45,                                  !- Material name
>    Rough,                                         !- Roughness
>     .0015,                                        !- Thickness {m}
>    160.0000,                                      !- Conductivity {w/m-K}
>    2800.00,                                       !- Density {kg/m3}
>    880.,                                          !- Specific Heat {J/kg-K}
>    0.3,                                           !- Thermal Emittance
>    0.3,                                           !- Solar Absorptance
>    0.3;                                           !- Visible Absorptance         
>     
>   Branch,
>     U12 RF Branch,  !- Name
>     autosize,                        !- Maximum Flow Rate {m3/s}
>     ,                        !- Pressure Drop Curve Name
>     ZoneHVAC:LowTemperatureRadiant:VariableFlow,  !- Component 1 Object Type
>     U12 RF,    !- Component 1 Name
>     U12 RF Inlet,  !- Component 1 Inlet Node Name
>     U12 RF Outlet,  !- Component 1 Outlet Node Name
>     Active;                  !- Component 1 Branch Control Type
>     
>   Branch,
>     U12 RF HW Branch,  !- Name
>     autosize,                        !- Maximum Flow Rate {m3/s}
>     ,                        !- Pressure Drop Curve Name
>     ZoneHVAC:LowTemperatureRadiant:VariableFlow,  !- Component 1 Object Type
>     U12 RF,    !- Component 1 Name
>     U12 RF HW Inlet Node,  !- Component 1 Inlet Node Name
>     U12 RF HW Outlet Node,  !- Component 1 Outlet Node Name
>     Active;                  !- Component 1 Branch Control Type   
>     
> 
> 
>    
>     
> !!!!!!!!!!!!!!!!!!!RF
> 
> !!!!!!!!!!!!!!!Exhaust Fan WC Start
> 
>   Fan:ZoneExhaust,
>     U12 XFan WC,     !- Name WC Exhaust Fan
>     HVACTemplate-Always 1,   !- Availability Schedule Name
>     0.7,                     !- Fan Efficiency
>     500,                     !- Pressure Rise {Pa}
>     7.9836111,            !- Mech ventilation (m3/s)      28741 m³/h
>     U12 WC Exhaust Air Node,   !- Air Inlet Node Name
>     U12 WC Outside Node,  !- Air Outlet Node Name
>     WC Exhaust;         !- End-Use Subcategory
> !!!!!!!!!!!!!!!Exhaust Fan WC End
> 
> ZoneHVAC:AirDistributionUnit,
>   U12 ATU,                                !- Name
>   U12 Supply Inlet,                       !- Air Distribution Unit Outlet Node Name
>   AirTerminal:SingleDuct:VAV:NoReheat,                     !- Air Terminal Object Type
>   U12 VAV Reheat;                         !- Component Name 1
> 
> AirTerminal:SingleDuct:VAV:NoReheat,
>   U12 VAV Reheat,                         !- Name
>   HVACTemplate-Always 1,                                   !- Availability Schedule Name
>   U12 Supply Inlet,                       !- Air Outlet Node Name
>   U12 Zone Equip Inlet,                   !- Air Inlet Node Name
>   autosize,                                                !- Maximum air flow rate {m3/s}
>   Scheduled,                                                !- Zone Minimum Air Flow Input Method
>   0.5,                                                       !- Constant Minimum Air Flow Fraction
>   ,                                                        !- Fixed Minimum Air Flow Rate
>   U12 MDF;                                       !- Minimum Air Flow Fraction Schedule Name
> 
> -----------------------------------------
> airloop ODA controller plant side looks like this
> -----------------------------------------
> !JMM AirLoop - Supply Side!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> 
> Sizing:System,
>   AHU,                                                     !- AirLoop Name
>   Sensible,                                                !- Type of Load to Size On
>   autosize,                                                !- Design (minimum) outside air volumetric flow rate {m3/s}
>   1,                                                       !- Minimum System Air Flow Ratio
>   7.2,                                                     !- Preheat design temperature {C}
>   0.0116,                                                   !- Preheat design humidity ratio {kg-H2O/kg-air} 0.011785
>   22,                                                      !- Precool design temperature {C}
>   0.0116,                                                   !- Precool design humidity ratio {kg-H2O/kg-air}
>   22,                                                      !- Central cooling design supply air temperature {C}
>   22,                                                       !- Central heating design supply air temperature {C}
>   NonCoincident,                                           !- Sizing Option
>   Yes,                                                     !- 100% Outdoor Air in Cooling
>   Yes,                                                      !- 100% Outdoor Air in Heating
>   0.0116,                                                   !- Central cooling design supply air humidity ratio {kg-H2O/kg-air}
>   0.0005,                                                   !- Central heating design supply air humidity ratio {kg-H2O/kg-air}
>   Flow/System,                                             !- Cooling Design Air Flow Method
>   500,                                                     !- cooling design air flow rate {m3/s} ...was 1420210 m³/h is now 1800000
>   Flow/System,                                               !- Heating Design Air Flow Method
>   500;                                                       !- heating design air flow rate {m3/s}
> 
> AirLoopHVAC,
>   AHU,                                                     !- Name
>   AHU Controllers,                                         !- Controller List Name
>   AHU Availability Managers,                               !- Availability Manager List Name
>   autosize,                                                !- Primary air design volumetric flow rate {m3/s}
>   AHU Branches,                                            !- BranchList Name
>   ,                                                        !- ConnectorList Name
>   !AHU Connector List,                                     !- ConnectorList Name
>   EvapCool Air Inlet,                                      !- Supply Side Inlet Node Name
>   AHU Return Air Outlet,                                   !- Demand Side Outlet Node Name
>   AHU Supply Path Inlet,                                   !- Demand Side Inlet Node Names
>   !AHU Reheater Outlet;
>   DOAS Supply Fan Outlet;                                  !- Supply Side Outlet Node Names
> 
> Branch,
>   DOAS Main Branch,                                         !- Name
>   autosize,                                                !- Maximum Branch Flow Rate {m3/s}
>   ,                                                        !- Pressure Drop Curve Name
>   EvaporativeCooler:Direct:ResearchSpecial,                 !- Comp Type
>   Direct Evap Cooler,                                       !- Comp Name
>   EvapCool Air Inlet,                                       !- Comp Inlet Node Name
>   DOAS Air Loop Inlet,                                      !- Comp Outlet Node Name
>   Passive,                                                  !- Comp Branch Control Type
>   AirLoopHVAC:OutdoorAirSystem,                            !- Comp Type
>   DOAS OA System,                                           !- Comp Name
>   !AHU Air Loop Inlet,                                      !- Comp Inlet Node Name
>   DOAS Air Loop Inlet,                                      !- Comp Inlet Node Name
>   DOAS Mixed Air Outlet,                                    !- Comp Outlet Node Name
>   Passive,                                                 !- Comp Branch Control Type
>   Coil:Heating:Water,                                      !- Comp Type
>   DOAS Heating Coil,                                        !- Comp Name
>   DOAS Mixed Air Outlet,                                    !- Comp Inlet Node Name
>   DOAS Heating Coil Air Outlet,                                 !- Comp Outlet Node Name
>   Passive,                                                 !- Comp Branch Control Type
>   Coil:Cooling:Water,                                      !- Comp Type
>   DOAS Cooling Coil,                                        !- Comp Name
>   DOAS Heating Coil Air Outlet,                                    !- Comp Inlet Node Name
>   DOAS Cooling Coil Air Outlet,                                 !- Comp Outlet Node Name
>   Passive,                                                 !- Comp Branch Control Type
>   Fan:VariableVolume,                                      !- Comp Type   ConstantVolume
>   DOAS Supply Fan,                                          !- Comp Name
>   DOAS Cooling Coil Air Outlet,                                 !- Comp Inlet Node Name
>   DOAS Supply Fan Outlet,                                   !- Comp Outlet Node Name
>   Active;
> 
> 
> AirLoopHVAC:OutdoorAirSystem:EquipmentList,
>   DOAS OA System Equipment,                                 !- Name
>   HeatExchanger:AirToAir:SensibleAndLatent,                !- Component Object Type
>   DOAS Heat Recovery,                                       !- Controlled Component Name
>   OutdoorAir:Mixer,                                        !- Component Object Type
>   DOAS OA Mixing Box;                                       !- Controlled Component Name
> 
> OutdoorAir:Mixer,
>   DOAS OA Mixing Box,                                       !- Name
>   DOAS Mixed Air Outlet,                                    !- Mixed Air Node
>   DOAS Heat Recovery Supply Outlet,                         !- Outside Air Stream Node
>   DOAS Relief Air Outlet,                                   !- Relief Air Stream Node
>   DOAS Air Loop Inlet;                                      !- Return Air Stream Node
> 
> Controller:OutdoorAir,
>   DOAS OA Controller,                                       !- Name
>   DOAS Relief Air Outlet,                                   !- Relief Air Outlet Node
>   !AHU Air Loop Inlet,                                      !- Return Air Node Name
>   DOAS Air Loop Inlet,                                      !- Return Air Node Name
>   DOAS Mixed Air Outlet,                                    !- Sensor Node Name
>   DOAS Outside Air Inlet,                                   !- Actuated Node
>   150,                                                     !- minimum outside air flow rate {m3/s} 30%
>   500,                                                     !- maximum outside air flow rate {m3/s}
>   NoEconomizer,                                            !- Economizer Control Type   DifferentialDryBulb
>   MinimumFlowWithBypass,                                   !- Economizer Control Action Type
>   25,                                                      !- Fixed Dry Bulb Temperature Limit {C}
>   50000,                                                   !- Fixed Enthalpy Limit {J/kg}
>   ,                                                        !- Fixed Dew Point Temperature Limit (C)
>   ,                                                        !- Electronic Enthalpy Limit Curve Name
>   11,                                                      !- Dry Bulb Temperature Lower Limit {C}
>   NoLockout,                                               !- Lockout Type
>   ProportionalMinimum,                                     !- Minimum Limit Type
>   ,!ODA_rate_Sch,                                          !- Minimum Outdoor Air Schedule Name
>   Min_ODA_Fraction_Sch,                                    !- Minimum Fraction of Outdoor Air Schedule Name **Note: This field overrides Minimum Outdoor Air Schedule and Minimum Outdoor Air Flowrate
>   Min_ODA_Fraction_Sch,                                    !- Maximum Fraction of Outdoor Air Schedule Name
>   ;!CO2DemandController;                                     !- Mechanical Ventilation Controller Name
> 
> ! Modified schedule: On
> Schedule:Compact,
> Min_ODA_Fraction_Sch,
> Any Number,
> Through: 12/31,
> For: AllDays,
> Until: 24:00, 1;
>




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