TEMPERATURE GRADIENT REDUCTION USING BUILDING MODEL AND HVAC BLOWER

摘要

A system is provided for reducing temperature gradients within a building. For example, temperature gradients between the air temperature measured at a thermostat controlling an HVAC system and the air temperature in one or more rooms of the building can be reduced. A model of the building is created by measuring the temperature gradient between the thermostat and one or more rooms of the building. This model is used to determine the operation of the HVAC system so as to reduce one or more of such temperature gradients.

主权项

1. A method of reducing temperature gradients in a building having multiple rooms, the building also having an HVAC system that includes at least one thermostat, at least one blower, one or more air treatment components for cooling the air, heating the air, or both, the method comprising the steps of:
measuring the temperatures TST near the thermostat and temperatures Ti of a room i in the building over a period of time Δtmeasure that includes operation of the HVAC system; determining the operating states of the HVAC system during the period of time Δtmeasure; providing a model MΔTi of the temperature difference ΔTi between the temperature at the thermostat TST and the temperature Ti of room i as function of the operating state of the HVAC system; repeating said steps of measuring, determining, and providing for N−1 additional rooms in the building so as to provide a model MΔTi of the temperature difference ΔTi between the temperature at the thermostat TT and the temperature Ti of each such additional room as function of the operating state of the HVAC system for a total of N rooms; combining N models MΔTi of the N rooms in the building so as to create an overall model MΔT-ALL of the building; and using the model MΔT-ALL to determine whether to operate the blower so as to reduce one or more temperature gradients in the building.