US 12,486,995 B2
Building ventilation system and method for ventilating a building
Siamak Rahimi Ardkapan, Copenhagen (DK); Christian Hendriksen, London (GB); and Frederik Hendriksen, London (GB)
Assigned to Respired Limited, London (GB)
Filed by Respired Limited, London (GB)
Filed on Oct. 3, 2024, as Appl. No. 18/905,945.
Claims priority of application No. PA 2024 30144 (DK), filed on Mar. 29, 2024.
Prior Publication US 2025/0305697 A1, Oct. 2, 2025
Int. Cl. F24F 11/46 (2018.01); F24F 8/00 (2021.01); F24F 11/58 (2018.01); F24F 11/77 (2018.01); F24F 110/10 (2018.01); F24F 110/12 (2018.01); F24F 110/66 (2018.01); F24F 110/70 (2018.01)
CPC F24F 11/46 (2018.01) [F24F 8/00 (2021.01); F24F 11/58 (2018.01); F24F 11/77 (2018.01); F24F 2110/10 (2018.01); F24F 2110/12 (2018.01); F24F 2110/66 (2018.01); F24F 2110/70 (2018.01)] 21 Claims
OG exemplary drawing
 
1. A building ventilation system for a building comprising one or more building areas, the building ventilation system comprising:
one or more air handling units arranged and configured to receive outdoor air from outside the building and deliver the outdoor air into the building;
a plurality of air quality sensors arranged to measure the quality of the air inside the building;
a control system connected to the air handling units and configured to receive data from the air quality sensors, wherein the control system is configured to control activity of the air handling units in dependency of the data from the air quality sensors,
a plurality of air cleaning units distributed within the building and arranged to eliminate gaseous and particulate pollutants from the air inside the building, each air cleaning unit physically separate from and not integrated into any of the air handling units, wherein the control system is configured to:
(i) independently control the air cleaning units separately from the air handling units in dependency of the data from the air quality sensors;
(ii) calculate the minimum outdoor air flow rate for each building area required to meet a predefined range of allowable CO2 concentration and/or temperature and/or relative humidity and/or volatile organic compounds (VOCs) and/or particle concentration for each building area;
(iii) determine a cleaning effect provided by each of the air cleaning units for each building area, the cleaning effect being provided by each of the air cleaning units operating independently of the air handling units;
(iv) for each building area, determine a lowest energy cost of operating the one or more air handling units to provide the minimum outdoor air flow rate and/or one or more of the plurality of air cleaning units to achieve the cleaning effect necessary to meet the predefined range; and
(v) instruct the one or more air handling units and/or the plurality of air cleaning units to operate in a manner that achieves the lowest energy cost.