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2021-11-24 02:49:43 -0600 commented question Transcritical co2 system with refrigeration air chiller in refrigerated warehouses in energyplus

I haven't tried it myself but I don't see a reason why energyplus would not handle CO2 with airchillers. In your case a

2021-11-24 02:49:01 -0600 commented question Transcritical co2 system with refrigeration air chiller in refrigerated warehouses in energyplus

I haven't tried it myself but I don't see a reason why energyplus would not handle CO2 with airchillers. In your case a

2021-11-24 02:47:31 -0600 commented question Transcritical co2 system with refrigeration air chiller in refrigerated warehouses in energyplus

I haven't tried it myself but I don't see a reason why energyplus would not handle CO2 with airchillers. In your case a

2021-09-30 11:27:35 -0600 commented answer How to input Glass spectral and Incident Angle Transmittance and reflectance

properties of the spectral data you obtained from WINDOW so as to create the table. In the Engineering Reference you can

2021-09-30 11:22:35 -0600 commented answer How to input Glass spectral and Incident Angle Transmittance and reflectance

I'm sorry I didn't grasp your question at first. So you need to use Optical Data Type = SpectralAndAngle. In this case I

2021-09-30 10:08:33 -0600 commented answer Could you clarify Infiltration entry fields?

Yes the units are off both for "flow per exterior surface area" and "flow per space floor area". However, if you export

2021-09-30 03:23:35 -0600 answered a question How to input Glass spectral and Incident Angle Transmittance and reflectance

You can use WINDOW from LBNL to model your windows and then export an .idf file with all the values you need both for av

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2021-09-26 12:15:06 -0600 commented question Humidifier not Working

Is the SetpointManager:MultiZone:Humidity:Minimum at NODE 136 as the .err suggets? This node should be the one after the

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2021-09-24 09:45:36 -0600 answered a question Could you clarify Infiltration entry fields?

Given that your spaces are assigned with a space type, you can find the infiltration options at the "space types" tab un

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2021-09-23 10:37:28 -0600 answered a question Simulation runs without ground temperatures set?

In openstudio you cannot set directly the ground temperature however, you can use a measure if you want to change it. By

2021-08-16 07:17:33 -0600 commented answer how can i represent pilotis during modeling?

There are some posts in the forum that adress this issue. For example: Thermal Resistance of Linear thermal bridges Calc

2021-07-29 05:19:58 -0600 commented question LEED Commercial Refrigeration Modeling

You can use energyplus for the new refrigerants and for the modeling in general. In case you refer to CO2 as a new refri

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2021-04-20 11:05:15 -0600 answered a question Thermostat and humidistat

Openstudio does not apply a humidistat in thermal zones automatically nor does it need to. Thermostats and humidistats a

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2021-04-02 07:23:44 -0600 answered a question how can i represent pilotis during modeling?

If your pilotis is an open space, the boundary condition of the floor should be outdoors, wind exposed but not sun expos

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2021-03-20 20:10:04 -0600 answered a question How to Create Fan Coil System in OpenStudio

1st step is to create a chilled water loop. Make sure you click on the dotted line and choose the appropriate loop type

2021-03-18 09:27:18 -0600 commented question creating wall fan in energyplus

If I undertand correctly you mean a simple fan that recirculates air in a space. A simple wall fan cannot cool a space,

2020-02-28 05:50:37 -0600 answered a question Dedicated Outside Air in Openstudio

I am posting as an answer so as to upload a picture. Try this configuration and let me know of this works for your case

2020-02-27 08:47:33 -0600 commented question Dedicated Outside Air in Openstudio

When you say that you can't connect the coils with boiler or chiller loops correctly what kind of errors are you getting

2020-02-26 08:08:46 -0600 commented question Dedicated Outside Air in Openstudio

Have you tried to create a plant loop and drag and drop your coils to the demand equipment from "My Model"? From a quick

2020-02-26 07:47:26 -0600 commented question Dedicated Outside Air in Openstudio

Have you tried to create a plant loop and drag and drop your coils to the demand equipment from "My Model"? From a quick

2020-01-03 09:06:52 -0600 commented question How to connect absorption chiller to Hot water Loop?

There is a similar question here

2019-12-03 06:38:41 -0600 commented answer AC Sizing for Room with Open Ceiling

From the most generic solution to the most precise for the scenario of increasing the thermostat you can create a gradie

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2019-11-28 09:42:12 -0600 answered a question AC Sizing for Room with Open Ceiling

One way would be to model it as one zone and increase your thermostat to the average of the stratification of air since

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2019-11-22 06:03:15 -0600 answered a question Balconies in Sketch Up

The best way would be to just create a New Shading Surface Group and draw the surface of your balcony. Moreover, you sho

2019-11-13 09:49:55 -0600 answered a question Is there any option to define the thermal zones and heat transfer surfaces in a separate programme like Google Sketch Up and import that file to the IDF Editor?

You can use OpenStudio as it comes with a plugin to Sketchup and then, if you are not happy with the UI of OpenStudio, y

2017-11-21 19:12:18 -0600 commented question Energy balance - Thermal zone without HVAC

Could Zone Component Load Summary be what you are looking for?

2017-11-12 18:45:56 -0600 marked best answer ventilation in ideal loads

I have seen in various other questions (e.g. here and here) and even in energy plus report itself that ventilation loads are not included while performing simulation with ideal loads system. However, when I change the DesignSpecificationOutdoorAir for a single zone test I did with ideal loads, cooling and heating loads also change by roughly what I would calculate manually for the sensible part of ventilation. Thusly I assume that the sensible part of ventilation is also reported in HVAC sizing summary. I would appreciate if someone could confirm or refute this finding! thank you!

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2017-11-12 18:45:55 -0600 commented answer ventilation in ideal loads

The html report was specific that no ventilation loads are included and it had me troubled! Thank you for your time to a

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2017-11-10 19:56:51 -0600 asked a question ventilation in ideal loads

ventilation in ideal loads I have seen in various other questions (e.g. here and here) and even in energy plus report it

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