Systems and methods for flow control in an HVAC system
US11092354B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2019 |
| Grant date | Aug 17, 2021 |
| Priority date | — |
| Expiry date | Jun 20, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/2614
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method for controlling flow in a heating, ventilation, and air conditioning (HVAC) system that imposes an upper limit on the flow of fluid through a heating or cooling coil. Imposing this limit on the flow rate ensures that a temperature change across the coil remains above a minimum threshold and can significantly reduce energy waste. The method includes receiving a first temperature measurement associated with an inlet of the coil, receiving a second temperature measurement associated with an outlet of the coil, and receiving a flow measurement associated with the valve, applying the first temperature measurement, the second temperature measurement, and the flow measurement as input to a model, determining a maximum flow rate that ensures that a difference between the first temperature measurement and the second temperature measurement is above a threshold using the model, and operating the valve in accordance with the maximum flow rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.