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19 comments on “Support
  1. Fernando Cacho says:


    I’m trying to use CoolVent.

    I’ve installed last version on my laptop, but, unfortunately my internet access is through a proxy server.

    So, when I launch CoolVent, the program tries to check the last version and I get an error message.

    + Downloading did not succeed.
    + The remote server returned an error: (407) Proxy Authentication Required.

    Is it possible to define a proxy for CoolVent or bypass the last evrsion check?


  2. Roger Chang says:

    Congratulations on the great development of this tool! Nice to see how much has been done on the natural ventilation topic in the last 15 years. I noticed you had linked to Brian Dean’s research site. I also performed natural ventilation research work at the same time which is still up at I’d love to find a way to collaborate by providing access to buildings we’ve been involved in with a mixed-mode or natural ventilation scheme.

  3. Maite Gil says:

    Hello, I am trying to install coolvent in my computer, but is a Mac and the file does’t run. Do you have a Mac version?
    Thank you very much

  4. Thomas says:

    I’m getting this error when trying to visualize the results:

    Could not find file ‘C:\User\me\AppData\Local\Apps\……..\TemperatureOutput.txt’

    • natvent says:

      Hi. if both java and .net framework have been properly installed, this problem is generally related to the decimal indicator. In the US we use a point, instead of a comma to separate decimals from integers. To solve this problem, it is necessary to change the computer configuration from a comma to a period as decimal separator.

  5. Sunny Du says:

    When I run the setup, it says “cannot continue. The application is improperly formatted.”

  6. Li says:

    May I ask if the weather files downloaded from Energyplus can be used in CoolVent since I would like to work on another city in Europe? Thank you.

    • natvent says:

      Yes, you can. You can use .epw files by selecting “Other” in the city combobox and then click on the Browse button to select the weather file you want to use

      • Cathy says:

        Great! May I ask if we could export the weather files which already implemented in CoolVent so I have an idea how it looks like? Besides, do you have some standard case studies (detailed information about the parameters settings, like a tutorial)so that I can practice? Right now I used the data provided by Maria-Alejandra Menchaca-B. at chapter 9 of her phd thesis (2012, MIT) to model a steady case, but I got really weird results. Thank you.

  7. L. Rong says:

    May I ask if the temperature stratification model has been implemented in the present version? Thanks.

  8. jP Trujillo Levy says:

    Hi NatVent
    It is possible to know the wind pressure coefficient that CoolVent uses for urban low rise context?

    • natvent says:

      CoolVent uses the method by Swami and Chandra in: “Correlations for pressure distribution on buildings and calculation of natural ventilation airflow”. ASHRAE Transactions 94(1), p. 243-266

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