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Computer-implemented system and method for evaluating a change in fuel requirements for heating of a building

  • US 10,354,025 B1
  • Filed: 03/20/2015
  • Issued: 07/16/2019
  • Est. Priority Date: 02/25/2015
  • Status: Active Grant
First Claim
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1. A method for evaluating a change in fuel requirements for heating of a building with the aid of a digital computer, comprising the steps of:

  • obtaining data for thermal conductivity, indoor temperature, an efficiency of an HVAC system of the building, and solar gains recorded for a building over a heating season;

    expressing fuel consumption for heating of the building over the heating season in parameterized terms that represent the thermal conductivity, the indoor temperature averaged, the HVAC efficiency, and the solar gains averaged;

    modeling an effect of an optimization of the heating of the building on the fuel consumption, the optimization comprising one of an improvement of the shell of the building, a change in the effective window area of the building, a change in the operation of the HVAC system of the building, and an upgrade of the HVAC system, further comprising;

    taking a derivative of the fuel consumption expression with respect to one of the parameterized terms as taken as a variable of interest; and

    finding a change in the fuel consumption relative to the variable of interest by solving the derivative based on the data obtained, wherein the steps are performed on a suitably-programmed computer and wherein heating of the building is optimized based on the change in fuel consumption.

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