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Re: [EnergyPlus_Support] AC adding





 Dr Li,

Thank you very much for response regarding HVAC system. 

Unfortunately I am on leave now and can not test it to give some feedback regarding errors that might occur. 

Anyway, I will post me results in nearest future.

Energy Research Group UBD is in Brunei Darussalam. I would like to know about your project a bit more and maybe have some collaboration as it's very close to the Brunei. I am currently doing my PhD in Energy Efficiency in Buildings and it will be great to learn more features of E+ from the expert.

Thank you again for the help.

Best regards, Veronika Shabunko

Energy Research Group UBD.



From: YuanLu Li <yli006@xxxxxxxxxxx>
To: EnergyPlus_Support <energyplus_support@xxxxxxxxxxxxxxx>
Sent: Sunday, August 5, 2012 8:44 AM
Subject: RE: [EnergyPlus_Support] AC adding

 
In my previous reply, I have shown you how a HVACtemplate object looks like.
 
After running this IDF, you will find another file with expansion  .expIDF.  This latter file is actually used for simulation.  You can change the extension to IDF, and it will run directly from EPlaunch.  The error messages are generated from running the expIDF.  That may be the reason why you do not see the line mentioned in the error message in the original .IDF fiie.
 
The template will generate some of the compact schedules for you.  The following is an example of some of them in the  .expIDF.


 
ScheduleTypeLimits,
  HVACTemplate Any Number;                                 !- Name
 
ThermostatSetpoint:DualSetpoint,
  Thermostat Dual SP Control,                              !- Name
  Htg_Sch_temp,                                            !- Heating Setpoint Temperature Schedule Name
  Clg_Sch_temp;                                            !- Cooling Setpoint Temperature Schedule Name
 
Schedule:Compact,
  HVACTemplate-Always 1,                                   !- Name
  HVACTemplate Any Number,                                 !- Schedule Type Limits Name
  Through: 12/31,                                          !- Field 1
  For: AllDays,                                            !- Field 2
  Until: 24:00,                                            !- Field 3
  1;                                                       !- Field 4
 
Schedule:Compact,
  HVACTemplate-Always 4,                                   !- Name
  HVACTemplate Any Number,                                 !- Schedule Type Limits Name
  Through: 12/31,                                          !- Field 1
  For: AllDays,                                            !- Field 2
  Until: 24:00,                                            !- Field 3
  4;                                                       !- Field 4
 
ZoneControl:Thermostat,
  Space1-1 Control,                                       !- Name
  Space1-1,                                                  !- Zone or ZoneList Name
  HVACTemplate-Always 4,                                   !- Control Type Schedule Name
  ThermostatSetpoint:DualSetpoint,                         !- Control Object Type
  Thermostat Dual SP Control;  

!- =========================
The Zone name used above is different from the last mail, because because I wanted to show you that the name can be changed from All Zones to a particular zone name.
 
There are about 6 ScheduleTypeLimits in a standard IDF.  If the template does not want to use  yours, it will create another with the prefix HVACTemplate.
 
ZoneControl:Thermostat,
    SPACE1-1 Control, !- Name
    SPACE1-1, !- Zone or ZoneList Name
    HVACTemplate-Always 4, !- Control Type Schedule Name
ThermostatSetpoint:SingleCooling, !- Control 1 Object Type
CoolingSetPoint,         !- Control 1 Name
ThermostatSetpoint:SingleHeating, !- Control 2 Object Type
HeatingSetpoint, !- Control 2 Name
ThermostatSetpoint:DualSetpoint, !- Control 3 Object Type
DualSetPoint; !- Control 3 Name
!- ==========================
The above is the full expansion.
 
ZoneControl:Thermostat,
    SPACE1-1 Control, !- Name
    SPACE1-1, !- Zone or ZoneList Name
HVACTemplate-Always 2, !- Control Type Schedule Name
ThermostatSetpoint:SingleCooling, !- Control 1 Object Type
CoolingSetPoint;         !- Control 1 Name

!- =========================
Schedule:Compact,HVACTemplate-Always is the same Schedule:Compact,HVACEemplate-Always 4 with the number 4 changed to 2.
 
You may not need to make all these changes.  If you delete the heating in the original IDF, the expIDF may have the schedules changed for you.
 
Remember that any changes made in the expIDF will be lost if you re-run the original IDF.  If possible, the changes should be made in the original IDF with the template objects.
 
By the way, where is the Energy Research Group UBD.
 
I am from Singapore, and it is also in the tropical zone.
 
 
 Dr. Li  

 

To: EnergyPlus_Support@xxxxxxxxxxxxxxx
From: veronikashabunko@xxxxxxxxx
Date: Fri, 3 Aug 2012 23:25:09 -0700
Subject: [EnergyPlus_Support] AC adding

 
Hello everyone ,

I am doing the simulation of existing building in tropics with 10 zones. In 5 out of 10 zones I have an Air conditioner . 

I am having trouble to understand how I can add it to the E+.( I am not an expert in HVAC). I believe that AC is a part of HVAC so therefore I should add to the HVACTemplate:Thermostat,HVACTemplate:Zone:IdealLoadsAirSystem  

Questions are : what is the right procedure of adding AC to all 5 zones and how is adding AC related with ScheduleTypeLimits Name, Schedule:Compact Name ( this is the errors that I've got while adding AC information to the  HVACTemplate:Thermostat,
HVACTemplate:Zone:IdealLoadsAirSystem )

Any help and suggestion will be highly appreciated.

Thank you.

Best regards, Veronika 

Energy Research Group UBD









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