US 12,656,014 B2 · Method of operating an HVAC system

Abstract

A method of operating an HVAC system that includes a thermal energy source and a thermal energy transfer device, using a flow regulating device arranged to regulate a flow rate of a fluid between the thermal energy source and the thermal energy transfer device, the method including determining a supply temperature of the fluid, determining a return temperature of the fluid, determining the flow rate of the fluid, and regulating the flow rate of the fluid such as to maintain a target temperature difference between the supply temperature and the return temperature, while ensuring that the return temperature is above a minimum return temperature threshold and the flow rate is above an operational flow rate threshold of the thermal energy transfer device.

Claims20

Dependent claims

A method of operating an HVAC system that comprises a thermal energy source and a thermal energy transfer device, the method comprising:

determining a supply temperature of a fluid;
determining a return temperature of the fluid;
determining a flow rate of the fluid;
and
regulating the flow rate of the fluid such as to maintain a target temperature difference between the supply temperature and the return temperature, while ensuring that:
the return temperature is above a minimum return temperature threshold;
and
the flow rate is above an operational flow rate threshold of the thermal energy transfer device.

5 more elements

An HVAC system comprising:

a thermal energy source;
a thermal energy transfer device;
and
a fluid transportation system comprising:
a supply fluid transportation line arranged to transport a fluid from the thermal energy source to the thermal energy transfer device;
a return fluid transportation line arranged to transport the fluid from the thermal energy transfer device to the thermal energy source;
and
a flow regulating device, arranged to regulate a flow rate of the fluid through the fluid transportation system between the thermal energy source and the thermal energy transfer device,
wherein the HVAC system is configured to carry out a method comprising:
determining a supply temperature of the fluid;
determining a return temperature of the fluid;
determining the flow rate of the fluid;
and
regulating the flow rate of the fluid such as to maintain a target temperature difference between the supply temperature and the return temperature, while ensuring that:
the return temperature is above a minimum return temperature threshold;
and
the flow rate is above an operational flow rate threshold of the thermal energy transfer device.

14 more elements

Dependencies are inferred from the claim text.

Method of operating an HVAC system

Life of this patent

Method of operating an HVAC system

Life of this patent

Abstract

Claims20