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Room thermal comfort monitor

  • US 8,700,227 B2
  • Filed: 03/11/2011
  • Issued: 04/15/2014
  • Est. Priority Date: 03/11/2011
  • Status: Active Grant
First Claim
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1. A method for zone thermal comfort management comprising:

  • obtaining sensor data of a zone, wherein the sensor data comprise;

    air temperature, air relative humidity, and air speed of the zone;

    computing thermal comfort level information based on, at least the air temperature, the air relative humidity, and the air speed of the zone;

    quantifying the thermal comfort level information in terms of a thermal comfort level index;

    thresholding the quantified thermal comfort level information into a plurality of thermal comfort level categories, wherein;

    the plurality of thermal comfort level categories comprise at least a comfort ok category, a cooling and/or heating savings opportunity category, and a comfort violated category;

    the comfort ok category includes index values, in terms of the thermal comfort level index, that meet a rule of thermal comfort established for one or more occupants of the zone;

    the cooling and/or heating savings opportunity category includes index values, in terms of the thermal comfort level index, that meet the rule established for the one or more occupants of the zone and that provide greater energy savings than the comfort ok category; and

    the comfort violated category includes index values, in terms of the thermal comfort level index, that do not meet the rule established for the one or more occupants of the zone;

    processing a request for a thermal comfort level;

    providing at least one of the index values that are included in the comfort ok category, or the cooling and/or heating savings opportunity category that meet the request;

    determining a new thermal comfort index setpoint based on the at least one of the index values; and

    adjusting a system setpoint based on the new thermal comfort index setpoint.

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