Development of In-Situ Fan Curve Measurement with One Airflow Measurement

摘要

Fan airflow is the key parameter for air volumetracking control in variable air volume systems. Oneof the airflow measurement methods is to determineairflow using the fan speed, fan head, and fan curve.Both fan speed and fan head can be measuredaccurately. Therefore, the accuracy of the fan airflowdepends on the accuracy of the fan curve. Anexperimental method has been developed todetermine the in-situ fan curve with only one airflowmeasurement. This paper presents the theoreticalbackground, experimental procedures, andverification results.