US 12,066,205 B2
Airstream sensor devices, systems and methods
Michael J. Urbaniak, Little River, SC (US); David S. Dougan, Myrtle Beach, SC (US); and Darryl W. DeAngelis, Longmeadow, MA (US)
Assigned to EBTRON Inc., Loris, SC (US)
Filed by EBTRON Inc., Loris, SC (US)
Filed on Feb. 2, 2021, as Appl. No. 17/165,506.
Application 17/165,506 is a continuation in part of application No. 16/035,183, filed on Jul. 13, 2018.
Claims priority of provisional application 62/969,374, filed on Feb. 3, 2020.
Claims priority of provisional application 62/532,517, filed on Jul. 14, 2017.
Prior Publication US 2021/0247091 A1, Aug. 12, 2021
Int. Cl. F24F 11/63 (2018.01); F24F 11/46 (2018.01); F24F 11/58 (2018.01); F24F 110/10 (2018.01); F24F 110/20 (2018.01); F24F 110/30 (2018.01); F24F 110/40 (2018.01)
CPC F24F 11/63 (2018.01) [F24F 11/46 (2018.01); F24F 11/58 (2018.01); F24F 2110/10 (2018.01); F24F 2110/20 (2018.01); F24F 2110/30 (2018.01); F24F 2110/40 (2018.01)] 33 Claims
OG exemplary drawing
 
1. A system, comprising:
at least one airstream sensor device configured to be disposed in an air flow conveyance structure of a heating, ventilation and air conditioning (“HVAC”) system, and comprising
a housing comprising an elongate hollow shaft configured to extend between a first inner wall of the air flow conveyance structure and an opposing second inner wall of the air flow conveyance structure,
a plurality of openings formed in the elongate hollow shaft so as to be spaced apart along the elongate length of the housing, and
a plurality of sensors respectively disposed in the plurality of openings formed in the elongate hollow shaft of the housing, and configured to simultaneously measure a temperature, an airflow rate, and a relative humidity of an airstream at a given location within a single cross-sectional plane of the air flow conveyance structure;
at least one absolute pressure sensor configured to measure an ambient barometric pressure of an atmosphere outside of the air flow conveyance structure; and
a transmitter communicatively coupled to the at least one airstream sensor device and the absolute pressure sensor, and configured to
receive humidity measured values, temperature measured values and airflow rate measured values from the at least one airstream sensor device and ambient barometric pressure values from the at least one absolute pressure sensor,
determine a mass flow rate profile including a plurality of mass flow rate measurements which vary across an air flow within the single cross-sectional plane of the air flow conveyance structure;
compute a weighted temperature value for the airstream by weighting each of the temperature measured values by a flow amount, wherein the weighted temperature value accounts for variations in the airstream's velocity within the single cross-sectional plane at a plurality of different locations in the air flow conveyance structure;
use the humidity measured values and the ambient barometric pressure values to determine current specific humidity values for the airstream within the air flow conveyance structure;
use the current specific humidity values and the weighted temperature value to determine a psychrometric property associated with the airstream at a plurality of points along the single cross-section plane; and
cause operations of the HVAC system to be controlled based on the determined psychrometric properties and the mass flow rate profile.