Shawn's profile - activity

Hi!

I am trying to install radiant floor in my simulation but I am having problems with that. (I only need the radiant floor during winter, for heating)

These ones are the steps that I've been following: 1. Assigned the Internal construction source on the floor of the house 2. In the thermal zone, I've assigned the ZoneHVAC: Low Temperature Radiant:VariableFlow 3. Completed the info inside this option. Heating Control temperature is on 18ºC and cooling in 50ª (don't want it to work) 4. The schedule of radiant floor is only in Winter Months. 5. I assigned the ZoneHVAC:LowTemperatureRadiant to an empy circuit. (Dind't assigned the cooling one) 6. When I run the simulation I don't get any temperature variation during winter months in the ResultsViewer. The house is still cold in winter.

I attached some pics. BTW.. How do I know between which layers (internal source constructions) are the pipes of the radiant floor?

I appreciate your answers, but I am a little bit lost with the program. I am using it, for two months, learning by myself, almost all the documentation is in English (not my native language) and its a very technical vocabulary and expressions. If any of you can contact me by mail and help me closely??? (e-mail: d.galileav@gmail.com)

And, if I had to delete my air-loop in order to install the ERV, how can create one with the cooling/heating system working with the ERV?

Perfect Julien!!

Hi Matthew!

FIrst of all, thanks for your answer. Now, I will try to explain better my situation from the beginning.

I am trying to simulate a PassivHaus. This type of houses don't have a typical heat system. It uses a Heat Recovery Ventilator to heat/cool the house. I have my problem at this point. I don't know how to represent it in OpenStudio and I posted my message.

Okay, now, I've included the ERV in my ThermalZone, and edited it. I found some problems here...

1. The first one. I don't know how to draw the airloop to add the ERV. I tried to add it in the one I posted (Link “My layout”) but I got a failed simulation. I am so lost here.
2. When I am editing the control of my HVAC, I selected "Siempre 20º" (Always 20ºC), but in the results I don't get that. The temperature comes from 10 to almost 30ºC.
3. When I am trying to edit the ERV, the Air Inlet Node Name and Outlet have a very strange name, so I can't identify the correct ones. In addition, I don't have the proper air-loop to know that nodes.
4. Another question that I have is about the schedule that I need for Heating Thermostat and Cooling Thermostat. Should I use time? temperature? always on?
5. I don't know either what type of SetPointManager use to set the temperature always in range between 18-24ºC

I am working with OpenStudio since November for my Final Project, and this is a completely chaos.

I put some links to helpful screenshots of what I want to explain.

Link 1 --> https://www.dropbox.com/s/gelon61gj01... Link 2 --> https://www.dropbox.com/s/n6jfconmrgp... Link 3 --> https://www.dropbox.com/s/o2tghxa2djq... Link 4 --> https://www.dropbox.com/s/co8ywkpyef3... Link 5 --> https://www.dropbox.com/s/um4cw3g5rur...

Thank you very much!!

I am trying to simulate a PassivHaus in EnergyPlus via OpenStudio and I am finding several problems with that. I tried with the following layout, but it doesn't do anything. I want to keep the inside temperature about 18-20ºC always, working with a heat exchanger using the exhaust air to preheat the outdoor air.

I attached a few images about I want to do.

My layout:

What I want to represent:

Another one:

Edit -----

Okay, now, I've included the ERV in my ThermalZone, and edited it. I found some problems here...

1. The first one. I don't know how to draw the airloop to add the ERV. I tried to add it in the one I posted (Link “My layout”) but I got a failed simulation. I am so lost here.
2. When I am editing the control of my HVAC, I selected "Siempre 20º" (Always 20ºC), but in the results I don't get that. The temperature comes from 10 to almost 30ºC.
3. When I am trying to edit the ERV, the Air Inlet Node Name and Outlet have a very strange name, so I can't identify the correct ones. In addition, I don't have the proper air-loop to know that nodes.
4. Another question that I have is about the schedule that I need for Heating Thermostat and Cooling Thermostat. Should I use time? temperature? always on?
5. I don't know either what type of SetPointManager use to set the temperature always in range between 18-24ºC

I am working with OpenStudio since November for my Final Project, and this is a completely chaos.

I put some links to helpful screenshots of what I want to explain.

Edit 2 ------

I've deleted the air-loop, inserted a Recovery Ventilator in the Zone Equipment. But now, when I try to simulate, I get an error that didn't happened before... It says: Object=Wateruse:connections, name=Water use connection, Required Field=Water Use Equipment 1 Nambe (was blank)..

I've checked all the water system and the equipments has name. I am so confused cause I dind't change anything else and this error appeared.. Here some image references.

Edit 3 -----

I've solved the Water Equipment error. When I deleted the old thermal zone, it disappeared from Spaces, thats all. Now I can run the simulation, but, I get the same results than before... Minimums temperatures of 14ºC and maximums of 28ºC (average), with the same graph. I tried to activate cooling and heating system from ERV's options (cooling setpoint 24ºC and heating setpoint 18ºC) but the temperature doesn't change anything... Any suggestion?

Apart from that, how can I know that this nodes are the correct ones (Air inlet/outlet)? Which ones should I select?