nagpalh's profile - activity

Hello all,

I want to simulate a simple single zone room with a single radiator unit with District Heating supplying the hot water to it. I want to use ZoneHVAC:Baseboard:RadiantConvective:Water. However, in the documentation I read that in addition to the hot water loop, there is an air loop with an air inlet and outlet node. I can not imagine it physically, how a radiator unit has an air loop. Has anyone simulated similar system before?

Thanks in advance.

@Denis Bourgeois @Aaron Yes, the object does not need an air loop to be defined. However, I was confused because of the

@Denis @Aaron Yes, the object does not need an air loop to be defined. However, I was confused because of the output var

Why ZoneHVAC:Baseboard:RadiantConvective:Water has an air loop? Hello all, I want to simulate a simple single zone room

Cooling energy consumption is way higher than heating consumption for mild climate I am simulating a virtual building wh

Cooling energy consumption is way higher than heating consumption for mild climate I am simulating a virtual building wh

Just an another follow-up question, if I am asked what is the heating/cooling requirements of the building to maintain c

Just an another follow-up question, if I am asked what is the heating/cooling requirements of the building to maintain c

Just another follow-up question, if I am asked what is the heating/cooling requirements of the building to maintain cert

Could anyone explain to me clearly that what "Zone Air System Sensible Heating Energy " means? From the EnergyPlus documentation, my understanding is that even if the heating coil is not on, this variable can have a positive value, because it includes the heat added from the fan and OA as well.

Are there any other parameters which add to "Zone Air System Sensible Heating Energy "?

What is "Zone Air System Sensible Heating Energy"? Could anyone explain to me clearly that what "Zone Air System Sensibl

Hi Everyone,

My objective is to control the heating and cooling availability schedule of zoneHvac:IdealAirLoadSystem. I take the following steps.

1) Define a heating and cooling availability on/off schedule in Schedule : Compact, set initial value to 1. 2) Use EMS sensor to get the zone temperature which is used late in EMS program 3) Define EMS Actuator to control heating and cooling availability schedule of IdealAirLoadSystem 4) Define the EMS program to activate the actuator

My Eplus objects are detailed below. I am not sure which calling point to use? No matter which calling point I choose the value of heating and cooling availability doesn't change from 1.

I'd appreciate any help.

Thanks

**Schedule:Compact,
    HeaAva,                  !- Name
    On/Off,                  !- Schedule Type Limits Name
    Through: 12/31,          !- Field 1
    For: Alldays,            !- Field 2
    Until: 24:00,            !- Field 3
    1;                       !- Field 4

Schedule:Compact,
    CooAva,                  !- Name
    On/Off,                  !- Schedule Type Limits Name
    Through: 12/31,          !- Field 1
    For: Alldays,            !- Field 2
    Until: 24:00,            !- Field 3
    1;                       !- Field 4

ZoneHVAC:IdealLoadsAirSystem,
    WestZoneIdealAir,        !- Name
    ,                        !- Availability Schedule Name
    Zone1Inlets,             !- Zone Supply Air Node Name
    ,                        !- Zone Exhaust Air Node Name
    ,                        !- System Inlet Air Node Name
    50,                      !- Maximum Heating Supply Air Temperature {C}
    13,                      !- Minimum Cooling Supply Air Temperature {C}
    0.015,                   !- Maximum Heating Supply Air Humidity Ratio {kgWater/kgDryAir}
    0.01,                    !- Minimum Cooling Supply Air Humidity Ratio {kgWater/kgDryAir}
    NoLimit,                 !- Heating Limit
    ,                        !- Maximum Heating Air Flow Rate {m3/s}
    ,                        !- Maximum Sensible Heating Capacity {W}
    NoLimit,                 !- Cooling Limit
    ,                        !- Maximum Cooling Air Flow Rate {m3/s}
    ,                        !- Maximum Total Cooling Capacity {W}
    HeaAva,                  !- Heating Availability Schedule Name
    CooAva,                  !- Cooling Availability Schedule Name
    ConstantSupplyHumidityRatio,  !- Dehumidification Control Type
    ,                        !- Cooling Sensible Heat Ratio {dimensionless}
    ConstantSupplyHumidityRatio,  !- Humidification Control Type
    ,                        !- Design Specification Outdoor Air Object Name
    ,                        !- Outdoor Air Inlet Node Name
    ,                        !- Demand Controlled Ventilation Type
    ,                        !- Outdoor Air Economizer Type
    ,                        !- Heat Recovery Type
    ,                        !- Sensible Heat Recovery Effectiveness {dimensionless}
    ;                        !- Latent Heat Recovery Effectiveness {dimensionless}**

!-   ===========  ALL OBJECTS IN CLASS: ENERGYMANAGEMENTSYSTEM:SENSOR ===========

EnergyManagementSystem:Sensor,
    ZoneTemp,                !- Name
    West Zone,               !- Output:Variable or Output:Meter Index Key Name
    Zone Mean Air Temperature ;  !- Output:Variable or Output:Meter Name


!-   ===========  ALL OBJECTS IN CLASS: ENERGYMANAGEMENTSYSTEM:ACTUATOR ===========

EnergyManagementSystem:Actuator,
    HeaAvaActuator,          !- Name
    HeaAva,                  !- Actuated Component Unique Name
    Schedule:Compact,        !- Actuated Component Type
    Schedule Value;          !- Actuated Component Control Type

EnergyManagementSystem:Actuator,
    CooAvaActuator,          !- Name
    CooAva,                  !- Actuated Component Unique Name
    Schedule:Compact,        !- Actuated Component Type
    Schedule Value;          !- Actuated Component Control Type


!-   ===========  ALL OBJECTS IN CLASS: ENERGYMANAGEMENTSYSTEM:PROGRAMCALLINGMANAGER ===========

EnergyManagementSystem:ProgramCallingManager,
    myPrograms,              !- Name
    BeginTimestepBeforePredictor,  !- EnergyPlus Model Calling Point
    HeatingAvailabilityProgram,  !- Program Name 1
    CoolingAvailabilityProgram;  !- Program Name 2


!-   ===========  ALL OBJECTS IN CLASS: ENERGYMANAGEMENTSYSTEM:PROGRAM ===========

EnergyManagementSystem:Program,
    HeatingAvailabilityProgram,  !- Name
    IF (ZoneTemp < 19 ),     !- Program Line 1
    SET HeaAva = 1,          !- Program Line 2
    ELSE,                    !- A4
    SET HeaAva = 0,          !- A5
    ENDIF;                   !- A6

EnergyManagementSystem:Program,
    CoolingAvailabilityProgram,  !- Name
    IF (ZoneTemp > 25 ),     !- Program Line 1
    SET CooAva = 1,          !- Program Line 2
    ELSE,                    !- A4
    SET CooAva = 0,          !- A5
    ENDIF;                   !- A6

Thank you. You're right. Such a silly mistake.

Thank you for your great suggestion. I checked the *.edd file. It seems that the EMS program is running absolutely as pe

Set Heating and Cooling availability schedule for Ideal load air system Hi Everyone, My objective is to control the hea

Set Heating and Cooling availability schedule for Ideal load air system Hi Everyone, My objective is to control the hea

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