Practical Applications

Abstract

overspeed governor velocity measuring system uses a for This new process may replace the inaccurate measuring system currently employed by maintenance tech-nicians, thus its reliability. The main objective consists of rigorously testing the operation of overspeed governors. The developed system guarantees the automatic execution of the test under several anomalous operating situations, thus allowing the user to have real-time access to the test data obtained through a graphical interface available on a mobile electronic device. This study proposes a novel control framework that jointly controls portable home air puri fi ers (HAPs) and windows to maintain thermal comfort and achieve effective PM 2.5 removal. The simulation results suggest that such a hybrid control strategy can result in considerable health bene fi ts at low additional energy costs. de-tectability and cance. Regarding the framework prioritizes hard faults over sequencing logic faults to avoid false positives and false negatives; about signi fi cance, system-level faults are prioritized over zone-level faults to triage high-impact faults in the system. The detection of faults is performed via visualizing the biases from the expected behaviour of AHU and VAV characteristics to provide an envisioning interpretation for the experts in facilities man-agement in commercial buildings to fi nd the root cause of the fault and fi x them on-site. District Cooling Systems are considered as a promising solution to alleviate the climate change issue. An optimized chiller sequencing control strategy of DCS can effectively reduce overall cooling energy consumption, so as to achieve carbon neutrality. This paper outlines a case study on a costeffective operational control strategy of the DCS at HZMB-HKP. The analysis of both the theoretical and practical sequencing control strategy can be taken as a reference for DCS development in the future.