US 12,753,941 B2 · Method, controller and system of controlling thermal power transfer through a thermal energy exchanger

Abstract

A method of controlling a thermal power transfer of a thermal energy exchanger (80) of an HVAC system (1), the method comprising: receiving, by a controller (10), a setpoint thermal power transfer (Power SP); measuring, by a flow sensor (52), a measured flow of fluid (φact) through the thermal energy exchanger (80); determining, by the controller (10), an estimated thermal power transfer (Power EST), using the measured flow of fluid (φact) and a defined flow rate to delta-T mapping; comparing, by the controller (10), the setpoint thermal power transfer (Power SP) and the estimated thermal power transfer (Power EST); and regulating, by the controller (10), the flow (φact) of the fluid (W) through the thermal energy exchanger (80) based on the comparing.

Claims16

Dependent claims

A method of controlling a thermal power transfer of a thermal energy exchanger of an HVAC system, the method comprising:

receiving, by a controller, a setpoint thermal power transfer;
measuring, by a flow sensor, a measured flow of a fluid through the thermal energy exchanger;
determining, by the controller, an estimated thermal power transfer, using the measured flow of fluid and a defined flow rate to delta-T mapping, the estimated thermal power transfer being determined without using a supply temperature or a return temperature of the fluid measured by a temperature sensor;
comparing, by the controller, the setpoint thermal power transfer and the estimated thermal power transfer;
and
regulating, by the controller, the flow of the fluid through the thermal energy exchanger based on the comparing.

3 more elements

An HVAC system comprising:

a thermal energy exchanger;
a controller;
and
a flow sensor configured to measure a flow of fluid through the thermal energy exchanger;
wherein the controller is configured to:
determine an estimated thermal power transfer, using the measured flow of fluid and a defined flow rate to delta-T mapping, the estimated thermal power transfer being determined without using a supply temperature or a return temperature of the fluid measured by a temperature sensor;
and
generate a control signal for regulating the flow of the fluid through the thermal energy exchanger based on the determining.

5 more elements

Dependencies are inferred from the claim text.

Method, controller and system of controlling thermal power transfer through a thermal energy exchanger

Life of this patent

Method, controller and system of controlling thermal power transfer through a thermal energy exchanger

Life of this patent

Abstract

Claims16