BUILDING MANAGEMENT SYSTEM WITH AIR QUALITY OCCUPANT IMPACT ASSESSMENT

    公开(公告)号:US20230324069A1

    公开(公告)日:2023-10-12

    申请号:US18132200

    申请日:2023-04-07

    IPC分类号: F24F11/64

    CPC分类号: F24F11/64 F24F2110/52

    摘要: A building system for a building. The building system can include one or more memory devices. The one or more memory device can store instructions. The instructions, when executed by one or more processors, can cause the one or more processors to receive, from one or more sensors, air quality measurements associated with one or more spaces of the building, and generate, using the air quality measurements, a productivity score for at least one of the building or at least one space of the one or more spaces of the building. The productivity score can be based on a predicted productivity or effect on productivity of one or more occupants of the building in view of the air quality measurements.

    CRITICAL ENVIRONMENT FEEDFORWARD-FEEDBACK CONTROL SYSTEM WITH ROOM PRESSURE AND TEMPERATURE CONTROL

    公开(公告)号:US20230314030A1

    公开(公告)日:2023-10-05

    申请号:US17709252

    申请日:2022-03-30

    IPC分类号: F24F11/63 F24F11/46 F24F11/74

    摘要: A feedforward-feedback controller for integrated temperature and pressure control of a building space includes one or more processing circuits. The one or more processing circuits are configured to generate a supply air flow rate setpoint using a combined feedforward-feedback control process that (i) proactively compensates for a feedforward air flow disturbance in the building space and (ii) reactively compensates for a feedback air pressure error in the building space, generate a supply air temperature setpoint using a predictive temperature model that predicts the supply air temperature setpoint required to achieve a zone temperature setpoint for the building space when supply air is provided to the building space at the supply air flow rate setpoint and the supply air temperature setpoint, and operate building equipment to provide the supply air to the building space at the supply air flow rate setpoint and the supply air temperature setpoint.

    BUILDING SYSTEM WITH AN IN-ZONE PLUME CONTROL SYSTEM

    公开(公告)号:US20220113050A1

    公开(公告)日:2022-04-14

    申请号:US17496101

    申请日:2021-10-07

    IPC分类号: F24F11/63 G05B15/02 F24F11/00

    摘要: A building system of a building includes an in-zone plume control system located within a zone of the building, the in-zone plume control system including one or more return air inlets comprising openings to receive one or more air plumes generated by one or more users. The in-zone plume control system includes one or more exhaust outlets configured to exhaust the one or more air plumes, a filter, and a fan configured to draw the one or more air plumes in through the one or more return air inlets, through the filter, and out through the one or more exhaust outlets back into the zone, wherein the filter is configured to filter the one or more air plumes to remove particles from the one or more air plumes before returning the one or more air plumes to the zone.

    INFECTION CONTROL TOOL FOR HVAC SYSTEM

    公开(公告)号:US20220065479A1

    公开(公告)日:2022-03-03

    申请号:US17459963

    申请日:2021-08-27

    摘要: An infection control tool for a building HVAC system includes processing circuitry configured to receive one or more inputs defining a HVAC system configuration for each of a baseline scenario and one or more other scenarios. The processing circuitry is also configured to estimate infection risk and at least one of energy consumption or operating cost for each of the one or more other scenarios relative to the baseline scenario. The processing circuitry is also configured to operate a display to provide the infection risk and at least one of the energy consumption or operating cost to a user.

    SYSTEMS AND METHODS FOR FLOW CONTROL IN AN HVAC SYSTEM

    公开(公告)号:US20220026102A1

    公开(公告)日:2022-01-27

    申请号:US17494279

    申请日:2021-10-05

    IPC分类号: F24F11/84

    摘要: A system for controlling flow of a fluid through a heat exchanger in a heating, ventilation, or air conditioning (HVAC) system includes a flow control device operable to adjust the flow of the fluid through the heat exchanger, temperature sensors positioned to obtain a temperature differential of the fluid across the heat exchanger, and a controller configured to compare the temperature differential to a threshold. Responsive to the temperature differential being less than the threshold, the controller is configured to calculate an adjusted setpoint for the flow control device as a function of both the temperature differential and the threshold and operate the flow control device to adjust the flow of the fluid through the heat exchanger in accordance with the adjusted setpoint.