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US 2019/0154286 A1Published application
Humidifier Control Systems and Methods
AssigneeEmerson Climate Technologies, Inc.
InventorsHung M. PHAM, Stuart K. MORGAN, Brian R. BUTLER
Life of this patent
Estimating the term…
Abstract
An indoor air quality (IAQ) system for a building includes a relative humidity (RH) sensor. The RH sensor is configured to measure a RH of the air within the building. At least one of a thermostat and an IAQ control module is configured to control humidification of the building based on the RH measured by the RH sensor.
Claims25
A humidifier control system for a building, comprising:
- a humidity load module configured to:
- obtain an outdoor ambient temperature at the building and an outdoor relative humidity (RH) at the building;
- and,
- at a first time, determine a predicted humidity load of a future predetermined period based on a temperature of air within the building, a RH of air within the building, the outdoor ambient temperature, the outdoor RH, a predetermined air exchange rate of the building with outdoors, and an interior volume of the building,
- wherein the future predetermined period is after the first time;
- a humidification module configured to determine a predicted humidification provided by a humidifier within the building during the future predetermined period based on:
- a period that the humidifier was on during a previous predetermined period, wherein the previous predetermined period is before the future predetermined period;
- and
- a predetermined evaporation rate of the humidifier when the humidifier is on;
- and
- a humidifier control module configured to open a water feed valve of the humidifier in response to a determination that the predicted humidification for the future predetermined period is less than the predicted humidity load of the future predetermined period.
8 more elements
A humidifier control method, comprising:
- obtaining an outdoor ambient temperature at a building;
- obtaining an outdoor relative humidity (RH) at the building;
- at a first time, determining a predicted humidity load of a future predetermined period based on a temperature of air within the building, a RH of air within the building, the outdoor ambient temperature, the outdoor RH, a predetermined air exchange rate of the building with outdoors, and an interior volume of the building,
- wherein the future predetermined period is after the first time;
- determining a predicted humidification provided by a humidifier within the building during the future predetermined period based on:
- a period that the humidifier was on during a previous predetermined period, wherein the previous predetermined period is before the future predetermined period;
- and
- a predetermined evaporation rate of the humidifier when the humidifier is on;
- and
- opening a water feed valve of the humidifier in response to a determination that the predicted humidification for the future predetermined period is less than the predicted humidity load of the future predetermined period.
7 more elements
A humidifier control method, comprising:
- obtaining an outdoor ambient temperature at a building;
- obtaining an outdoor relative humidity (RH) at the building;
- determining a humidity load based on a temperature of air within the building, a RH of air within the building, the outdoor ambient temperature, the outdoor RH, a volume of the building, a predetermined air exchange rate of the building with outdoors, and an interior volume of the building;
- determining a humidification provided by a humidifier within the building based on:
- a period that the humidifier was on during a previous predetermined period;
- and
- a predetermined evaporation rate of the humidifier when the humidifier is on;
- and
- opening a water feed valve of the humidifier in response to a determination that the humidification is less than the humidity load.
6 more elements
Dependencies are inferred from the claim text.