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Underfloor system for heating and cooling with Heat pump in openstudio Hello. I am trying to create an underfloor syst

The Design Water Outlet Temperature is set to 82oC. For the Heating plantloop i have set 100oC Maximum Loop Temperature

I have set SetpointManager:Scheduled for the DHW systems and the Heating system. But i replaced the schedule for the hea

Thank you for your response. I have used both of them, but as a result i 've noticed a very low annual energy consumptio

Heating Boiler with outdoor temp compensation I would like to ask if there is any way to create a setpoint to an energyp

Hello.

I would like to ask if there is any possibility to create an extended file via weather converter.exe and then run the simulation on energyplus...

Thank you in advance.

Thank you for your instant reply.

But my problem is to create the extended file via weather converter.exe and not the simulation on energyplus... Is there any solution for this problem?

Thank again.

Hello.

I would like to ask if there is any possibility to create an extended weather file for more than one year (1 1/2 years actually) and ran it to energyplus.

Thank in advance

Thank you very much! I 've added the objects that you suggested and now i have electricity production. But as i can see from the report tables of eneryplus, i still have no heating production. Moreover, when i simulate an annual schedule, the water in the heating system rises too high at a temperature over 100oC. How could i solve these problems?

I am trying to create a central heating system with the use of microcHP instead of a HWboiler. The design of the system includes a variable speed pump, a heating water loop supply splitter, a microchp, a heating water supply mixer, an adiabatic pipe, a heating water demand splitter, coils, heating water loop demand mixer, heating water loop demand outlet pipe and finally the water returns to the pump.

The energyplus model seems to run without any severe errors. But at the end i have no electricity power and heating production from the system with the use of microchp.

Could anybody give me any further information that will help me to solve this problem?

Thank you in advance.

I've put them manually at the energy plus after exporting the file from the opestudio

Thank you in advance!

Thank you very much. Your answer was very helfpful.

I can now export the openstudio file into an enerrgyplus file. At the end of the simulation, i have the below warnings for each thermal zone and air loop (there are more than ten thermal zones in my schedule).

* Warning * Calculated design heating load for zone=ZONE A1A is zero. * ~~~ * Check Sizing:Zone and ZoneControl:Thermostat inputs.

* Warning * ManageSizing: Calculated Heating Design Air Flow Rate for System=AIR LOOP HVAC 1 is zero. * ~~~ * Check Sizing:Zone and ZoneControl:Thermostat inputs.

No i don't have any. What kind of Airterminal object do you think that should be proper for this simple heating system?

Hello,

I would like to design a central heating system for an apartment with more than 10 thermal zones. The steps that i follow with order are:

1) I am creating the plant loop by importing a hot water boiler (HW boiler), an adiabatic pipe, a setpoint manager (scheduled HW Temp) and finally all the Heating water coils (Coil Heating Water- one coil for a each thermal zone)

2) I am making an air loop HVAC for each coil by importing an empty air loop system. Into that loop i am placing the thermal zone in the demand equipment area. The coils are in the supply equipment.

3) I export the file into an *.idf file and then i use a heating thermal schedule for each thermal zone.

When i run the energyplus at the end, some of the severe errors are

"* Severe * Node NODE 5 connects to no component * ~~~ * Occurs in Supply Air Path=AIR LOOP HVAC 1 NODE 3 SUPPLY PATH * ~~~ * Check the connection to a ZoneHVAC:EquipmentConnections object * ~~~ * Check if this component is missing from the Supply Air Path * Severe * An outlet node in AirLoopHVAC="AIR LOOP HVAC 1" is not connected to any zone * ~~~ * Could not match ZoneEquipGroup Inlet Node="NODE 3" to any Supply Air Path or controlled zone * Severe * Node NODE 95 connects to no component * ~~~ * Occurs in Supply Air Path=AIR LOOP HVAC 10 NODE 93 SUPPLY PATH * ~~~ * Check the connection to a ZoneHVAC:EquipmentConnections object * ~~~ * Check if this component is missing from the Supply Air Path"

Could anybody give me some advice?

Thank you in advance.

----Matt Koch, thank you very much for your instant reply in my previous question! It was very helpful!

Hello.

I am trying to create for educational reasons, a central heating loop with a hot water boiler, in a building with more than ten thermal zones, by using the openstudio program.

I am new in energy modeling so i am faced with some difficulties. First of all i would like to ask if there are any radiators in the openstudio library? Moreover, how could i be able to import the thermal zones into the plant loop? Is it right, in order to control the radiators indepentently , to put o scheduled HW Temp before each radiator?

Thank you in advance.