US 11,668,488 B2
System and method of controlling a heat transfer system
Jorge Miguel Gamboa Revilla, Oxnard, CA (US); Satya Kiran Gullapalli, Camarillo, CA (US); Sergio Fernando Montalgo Salazar, Calexico, CA (US); Juan Carlos Montanez, Oxnard, CA (US); Amin Monfared, Oxnard, CA (US); and Alexander Chow, Camarillo, CA (US)
Assigned to Rheem Manufacturing Company, Atlanta, GA (US)
Filed by Rheem Manufacturing Company, Atlanta, GA (US)
Filed on Sep. 11, 2020, as Appl. No. 17/17,945.
Prior Publication US 2022/0082288 A1, Mar. 17, 2022
Int. Cl. F24H 15/175 (2022.01); F24H 15/215 (2022.01); F24H 15/219 (2022.01); F24H 15/395 (2022.01); F24F 11/80 (2018.01)
CPC F24F 11/80 (2018.01) [F24H 15/175 (2022.01); F24H 15/215 (2022.01); F24H 15/219 (2022.01); F24H 15/395 (2022.01)] 15 Claims
OG exemplary drawing
 
1. A heat transfer system comprising:
a fluid inlet line;
a first temperature sensor configured to detect a temperature of fluid within the fluid inlet line;
a fluid outlet line;
a second temperature sensor configured to detect a temperature of fluid within the fluid outlet line;
a heat exchanger operatively disposed between the fluid inlet line and the fluid outlet line; and
a processor configured to:
obtain an inlet temperature from the first temperature sensor;
obtain an outlet temperature from the second temperature sensor;
determine a delta temperature based on difference between the inlet temperature and the outlet temperature;
determine a current operating state of the heat transfer system based on the inlet temperature and the delta temperature, the current operating state being a scaling operating state or a condensation operating state; and
output operating instructions to cause the heat transfer system to transition from the current operating state to a target operating state,
wherein when the delta temperature is greater than or equal to a first threshold value, the heat transfer system is in the scaling operating state,
wherein when the delta temperature is less than or equal to a second threshold value that is less than the first threshold value, the heat transfer system is the condensation operating state, and
wherein when the delta temperature is between the first threshold value and the second threshold value, the heat transfer system is in the target operating state.