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Airflow Rate Units

asked 2021-04-27 07:59:12 -0500

sashadf1's avatar


I am modifying measure code to increase the capacities and airflow rates through the DX single speed cooling and heating coils of a single stage ASHP.

In the line below, I set the airflow rate through the coil(s) to the new, increased rate;

Airflow Percent Increase

I would like to print the units of value_after_flow to my log file in the runner.registerInfo() statement, but I don't know what they are.

Back of the envelope calculations tell me the units are probably m^3/s. Is this the case?

The method for the coil classes I am using is documented here: https://openstudio-sdk-documentation....

and here: https://openstudio-sdk-documentation....

but the airflow units are not displayed.

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answered 2021-04-27 10:14:08 -0500

sashadf1's avatar

I confirmed by looking in the Input Output Reference that the units are indeed m^3/s.

Per input output reference: "The air volume flow rate, in m3 per second, across the DX cooling coil at rated conditions"

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answered 2021-04-27 09:47:41 -0500

Since the OpenStudio SDK simply provides methods to modify EnergyPlus inputs, you should consult the EnergyPlus documentation for descriptions/units/etc. for the inputs themselves.

For example, here is the Rated Air Flow Rate documentation for the Coil:Cooling:DX:SingleSpeed object.

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Asked: 2021-04-27 07:59:12 -0500

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Last updated: Apr 27 '21