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Computer-implemented system and method for modeling building heating energy consumption

  • US 10,339,232 B1
  • Filed: 02/25/2015
  • Issued: 07/02/2019
  • Est. Priority Date: 02/25/2015
  • Status: Active Grant
First Claim
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1. A method for modeling periodic building heating energy consumption with the aid of a digital computer, comprising the steps of:

  • obtaining total thermal conductivity of a building with an HVAC system;

    evaluating thermal conductivity of a building based on a balance point up to which the building can be thermally sustained using only internal heating gains over a time period for a heating season; and

    determining fuel consumption as a function of the total thermal conductivity less the balance point thermal conductivity, the average indoor temperature less the average outdoor temperature and duration of the time period, over the HVAC system'"'"'s efficiency; and

    modeling a change in the thermal conductivity associated with replacing a material of a portion of an envelope of the building with a further material using an R-value of the material and an R-value of the further material; and

    calculating a value of energy savings associated with the replacement using the determined fuel consumption and the changed thermal conductivity,wherein the steps are performed on a suitably-programmed computer and wherein the replacement is performed based on the value of the energy savings.

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