I am not sure whether the thermostat schedules are correct.
ZoneControl:Thermostat,
Dr. Li
To: EnergyPlus_Support@xxxxxxxxxxxxxxx From: valeba23@xxxxxxxxx Date: Tue, 7 Jun 2011 15:23:52 +0000 Subject: [EnergyPlus_Support] zone temperature
Why setpoint-temperatures are not maintained in the zone?
The plant is into file : UTA The control is: Sizing:Zone, 3P:3ESP, !- Zone Name 16, !- Zone Cooling Design Supply Air Temperature {C} 35, !- Zone Heating Design Supply Air Temperature {C} 0.012, !- Zone Cooling Design Supply Air Humidity Ratio {kg-H2O/kg-air} 0.008, !- Zone Heating Design Supply Air Humidity Ratio {kg-H2O/kg-air} Flow/Person, !- Outdoor Air Method 0.00944, !- Outdoor Air Flow per Person {m3/s} , !- Outdoor Air Flow per Zone Floor Area {m3/s-m2} , !- Outdoor Air Flow per Zone {m3/s} , !- Zone Heating Sizing Factor , !- Zone Cooling Sizing Factor DesignDay, !- Cooling Design Air Flow Method , !- Cooling Design Air Flow Rate {m3/s} 0.000762, !- Cooling Minimum Air Flow per Zone Floor Area {m3/s-m2} , !- Cooling Minimum Air Flow {m3/s} , !- Cooling Minimum Air Flow Fraction DesignDay, !- Heating Design Air Flow Method , !- Heating Design Air Flow Rate {m3/s} 0.002032, !- Heating Maximum Air Flow per Zone Floor Area {m3/s-m2} 0.1415762, !- Heating Maximum Air Flow {m3/s} 0.3; !- Heating Maximum Air Flow Fraction Sizing:System, air_loop, !- AirLoop Name Sensible, !- Type of Load to Size On autosize, !- Design Outdoor Air Flow Rate {m3/s} 1, !- Minimum System Air Flow Ratio 35, !- Preheat Design Temperature {C} 0.008, !- Preheat Design Humidity Ratio {kg-H2O/kg-Air} 16, !- Precool Design Temperature {C} 0.012, !- Precool Design Humidity Ratio {kg-H2O/kg-Air} 16, !- Central Cooling Design Supply Air Temperature {C} 35, !- Central Heating Design Supply Air Temperature {C} NonCoincident, !- Sizing Option No, !- 100% Outdoor Air in Cooling No, !- 100% Outdoor Air in Heating 0.0012, !- Central Cooling Design Supply Air Humidity Ratio {kg-H2O/kg-Air} 0.008, !- Central Heating Design Supply Air Humidity Ratio {kg-H2O/kg-Air} DesignDay, !- Cooling Design Air Flow Method , !- Cooling Design Air Flow Rate {m3/s} DesignDay, !- Heating Design Air Flow Method ; !- Heating Design Air Flow Rate {m3/s} Sizing:Plant, chiller_plantloop, !- Plant or Condenser Loop Name Heating, !- Loop Type 5, !- Design Loop Exit Temperature {C} 7; !- Loop Design Temperature Difference {deltaC} Sizing:Plant, boiler_plantloop, !- Plant or Condenser Loop Name Heating, !- Loop Type 80, !- Design Loop Exit Temperature {C} 10; !- Loop Design Temperature Difference {deltaC} ZoneControl:Thermostat, 3P:3ESP Thermostat, !- Name 3P:3ESP, !- Zone or ZoneList Name Zone Control Type Sched, !- Control Type Schedule Name ThermostatSetpoint:DualSetpoint, !- Control 1 Object Type Dual Setpoint - Zone 3P:3ESP; !- Control 1 Name ThermostatSetpoint:DualSetpoint, Dual Setpoint - Zone 3P:3ESP, !- Name 3P:3ESP Heating SP Sch, !- Heating Setpoint Temperature Schedule Name 3P:3ESP Cooling SP Sch; !- Cooling Setpoint Temperature Schedule 3P:3ESP Heating SP Sch, May-Jun-Jul-Aug-Sep Jan-Feb-Mar-Apr-Oct-Nov-Dec h9-20 22°C 3P:3ESP Cooling SP Sch May-Jun-Jul-Aug-Sep h9-20 24°C -- Jan-Feb-Mar-Apr-Oct-Nov-Dec h9-20 22°C SetpointManager:SingleZone:Heating, setpoint_heating, !- Name Temperature, !- Control Variable 0, !- Minimum Supply Air Temperature {C} 99, !- Maximum Supply Air Temperature {C} 3P:3ESP, !- Control Zone Name Node PLF:PLFZ Zone, !- Zone Node Name 3P:3ESP Inlets, !- Zone Inlet Node Name 3esp_coil_heating_air_outlet_node; !- Setpoint Node or NodeList Name SetpointManager:SingleZone:Cooling, setpoint_cooling, !- Name Temperature, !- Control Variable 0, !- Minimum Supply Air Temperature {C} 40, !- Maximum Supply Air Temperature {C} 3P:3ESP, !- Control Zone Name Node PLF:PLFZ Zone, !- Zone Node Name 3P:3ESP Inlets, !- Zone Inlet Node Name 3esp_coil_heating_air_outlet_node; !- Setpoint Node or NodeList Name SetpointManager:Scheduled, CW_supply_Temp_SP_schedule, !- Name Temperature, !- Control Variable CW_supply_Temp_Setpoint, !- Schedule Name CW_supply_outlet_node; !- Setpoint Node or NodeList Name Schedule:Compact, CW_supply_Temp_Setpoint, !- Name Temperature, !- Schedule Type Limits Name through:12/31, !- Field 1 for:alldays, !- Field 2 until:24:00, 7; !- Field 4 SetpointManager:Scheduled, HW_supply_Temp_SP_schedule, !- Name Temperature, !- Control Variable HW_supply_Temp_Setpoint, !- Schedule Name HW_supply_outlet_node; !- Setpoint Node or NodeList Name Schedule:Compact, HW_supply_Temp_Setpoint, !- Name Temperature, !- Schedule Type Limits Name through:12/31, !- Field 1 for:alldays, !- Field 2 until:24:00, 70; !- Field 4 thank, valeria __._,_.___ Primary EnergyPlus support is found at: http://energyplus.helpserve.com or send a message to energyplus-support@xxxxxxxx The primary EnergyPlus web site is found at: http://www.energyplus.gov The group web site is: http://groups.yahoo.com/group/EnergyPlus_Support/ Attachments are currently allowed but be mindful that not everyone has a high speed connection. Limit attachments to small files. EnergyPlus Documentation is searchable. Open EPlusMainMenu.pdf under the Documentation link and press the "search" button.
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