“…More details about the environmental monitoring and participant interviews and surveys (including sleep and wellbeing surveys, IAQ opinions, and occupant behaviours) can be found in previous publications. 10,12 Figure 1.Indoor and outdoor monitoring locations (left) and the floor plan of the case study flat (right). Note that to protect the residents’ privacy, schematic drawings were used for illustration.…”
Section: Methodsmentioning
confidence: 99%
“…27 The HAP operation was assumed to be independent of the window operations based on the findings of recent work. 12,28 Figure 3.HAP control logic.…”
Section: Methodsmentioning
confidence: 99%
“…More details about the environmental monitoring and participant interviews and surveys (including sleep and wellbeing surveys, IAQ opinions, and occupant behaviours) can be found in previous publications. 10,12 Building model development Model inputs and assumptions. A building physicsbased model was developed in EnergyPlus 9.4 (EP) to simulate indoor temperature and PM 2.5 in the living room of the flat.…”
Section: Description Of Case Studymentioning
confidence: 99%
“…27 The HAP operation was assumed to be independent of the window operations based on the findings of recent work. 12,28 Auto-window control mode. Due to security considerations, the window is programmed to be fully closed at midnight and when people are away, and the flat-level occupancy was determined based on both passive infrared (PIR) and CO 2 sensors, with details available in a previous paper.…”
Section: Control Strategies and Simulation Scenariosmentioning
Indoor exposure to PM2.5 (particulate matter with aerodynamic diameter less than 2.5 μm) has a substantial negative impact on people’s health. However, indoor PM2.5 can be controlled through effective ventilation and filtration. This study aimed to develop a smart control framework that (1) combines a portable home air purifier (HAP) and window control system to reduce indoor PM2.5 concentrations whilst maintaining thermal comfort; (2) evaluates the associated health impacts and additional energy use. The proposed framework was demonstrated through a simulation-based case study of a low-energy apartment. The simulation results showed that joint control of HAP and window openings has great potential to not only maintain thermal comfort but also achieve effective PM2.5 removal which, consequently, can lead to considerable health benefits at a low additional energy cost. Compared to similar previous studies, the strength of the proposed control framework lies in combining window operations and HAPs in the same system and including both thermal comfort and indoor PM2.5 as the control targets. This work also introduces a novel concept of linking a building control system with a health impact assessment, an important and innovative step in the creation of holistic and responsive building controls. Practical application: This study proposes a novel control framework that jointly controls portable home air purifiers (HAPs) and windows to maintain thermal comfort and achieve effective PM2.5 removal. The simulation results suggest that such a hybrid control strategy can result in considerable health benefits at low additional energy costs.
“…More details about the environmental monitoring and participant interviews and surveys (including sleep and wellbeing surveys, IAQ opinions, and occupant behaviours) can be found in previous publications. 10,12 Figure 1.Indoor and outdoor monitoring locations (left) and the floor plan of the case study flat (right). Note that to protect the residents’ privacy, schematic drawings were used for illustration.…”
Section: Methodsmentioning
confidence: 99%
“…27 The HAP operation was assumed to be independent of the window operations based on the findings of recent work. 12,28 Figure 3.HAP control logic.…”
Section: Methodsmentioning
confidence: 99%
“…More details about the environmental monitoring and participant interviews and surveys (including sleep and wellbeing surveys, IAQ opinions, and occupant behaviours) can be found in previous publications. 10,12 Building model development Model inputs and assumptions. A building physicsbased model was developed in EnergyPlus 9.4 (EP) to simulate indoor temperature and PM 2.5 in the living room of the flat.…”
Section: Description Of Case Studymentioning
confidence: 99%
“…27 The HAP operation was assumed to be independent of the window operations based on the findings of recent work. 12,28 Auto-window control mode. Due to security considerations, the window is programmed to be fully closed at midnight and when people are away, and the flat-level occupancy was determined based on both passive infrared (PIR) and CO 2 sensors, with details available in a previous paper.…”
Section: Control Strategies and Simulation Scenariosmentioning
Indoor exposure to PM2.5 (particulate matter with aerodynamic diameter less than 2.5 μm) has a substantial negative impact on people’s health. However, indoor PM2.5 can be controlled through effective ventilation and filtration. This study aimed to develop a smart control framework that (1) combines a portable home air purifier (HAP) and window control system to reduce indoor PM2.5 concentrations whilst maintaining thermal comfort; (2) evaluates the associated health impacts and additional energy use. The proposed framework was demonstrated through a simulation-based case study of a low-energy apartment. The simulation results showed that joint control of HAP and window openings has great potential to not only maintain thermal comfort but also achieve effective PM2.5 removal which, consequently, can lead to considerable health benefits at a low additional energy cost. Compared to similar previous studies, the strength of the proposed control framework lies in combining window operations and HAPs in the same system and including both thermal comfort and indoor PM2.5 as the control targets. This work also introduces a novel concept of linking a building control system with a health impact assessment, an important and innovative step in the creation of holistic and responsive building controls. Practical application: This study proposes a novel control framework that jointly controls portable home air purifiers (HAPs) and windows to maintain thermal comfort and achieve effective PM2.5 removal. The simulation results suggest that such a hybrid control strategy can result in considerable health benefits at low additional energy costs.
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