A fan airflow station measures airflow through a fan using fan speed, fan head, and the field-calibrated fan curve. This paper presents the theory and techniques of using fan airflow station in a variable volume system for building pressure control. These techniques include fan curve calibration, determination of the volumetric flow difference of the supply and return airflows, and sensor locations. The return fan speed profiles were plotted, and data was collected on building pressure after implementing the fan air flow station. The Implementation of a fan air flow station demonstrates that the return fan speed can track the supply fan speed profile as building loads change, such that building pressure is maintained within a satisfactory range.
Using a Fan Air Flow Station to Control Building Static Pressure in a Variable Volume Air Conditioning System
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Zheng, B, Pang, X, Liu, M, & Joo, I. "Using a Fan Air Flow Station to Control Building Static Pressure in a Variable Volume Air Conditioning System." Proceedings of the ASME 2005 International Solar Energy Conference. Solar Energy. Orlando, Florida, USA. August 6–12, 2005. pp. 581-587. ASME. https://doi.org/10.1115/ISEC2005-76215
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