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Durham School of Architectural Engineering and Construction: Dissertations, Thesis, and Student Research
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Pump Controller Design For Variable Primary Flow Configuration Systems, Yifan Shi
Pump Controller Design For Variable Primary Flow Configuration Systems, Yifan Shi
Durham School of Architectural Engineering and Construction: Dissertations, Thesis, and Student Research
Pump systems are utilized widely in Heating, Ventilation and Air-Conditioning (HVAC) systems. There are mainly three configuration types: (1) the constant primary-only flow configuration, (2) the constant primary/variable secondary flow configuration, and (3) the variable primary-only flow configuration. This thesis focuses on finding the optimal control strategy for it and programming a controller for easy in-field usage.
In this thesis, the pump brake horse power (BHP) of the three pump configurations is simulated and compared using varying control methods. The best pump efficiency staging and DP reset control methods are implemented into the pump controller. A one month field experiment …