11/1/2022 0 Comments Ashrae 90.1 pdf
The minimum distance between the centers of any two nozzles in simultaneous use shall be three times the throat diameter of the larger nozzle. During a laboratory test, the air density and rotational speed may vary slightly from one determination point to another. The description of the test fan shall be recorded. The specification permitting an uncertainty based on the maximum observed test reading during the test leads to combined relative uncertainties in both fan pressure and fan airflow rate that are higher at low values of the fan pressure or fan airflow rate than at high values of those test results.Ī torque measurement device shall have a static calibration and may have a running calibration through its range of use. If a portion of the internal energy is converted into kinetic energy, the static temperature is decreased accordingly. and Air-Conditioning Engineers (ASHRAE) approved ANSI/AMCA Standard ANSI/ASHRAE Standard, Laboratory Methods of Testing Fans for. Standard - Laboratory Methods of Testing Fans for Aerodynamic Performance Rating (ANSI/AMCA Standard ) (ANSI/ASHRAE Approved).
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