Forensic Engineers and Consultants

Tag Archive: combustion

  1. More HVAC Equipment Changes on the Way

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    The United States Department of Energy (DOE) finalized energy efficiency standards for residential gas furnaces in late 2023.  These new standards are slated for implementation in late 2028.  The last time the DOE raised the efficiency rating of gas furnaces was in 2007, when the minimum efficiency for gas fired furnaces was raised from 78% to 80% efficient.

    Let’s look at what efficiency means in this context.  In simple terms, (more…)

  2. Spontaneous Combustion…Is it hot in here or is it just me???

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    In the old-timey Fire Triangle, you have heat, fuel, and oxygen.  Get these three together in the right quantities, and you get fire.  What if the fuel provides its own heat?  That’s spontaneous combustion, or spontaneous ignition.  NFPA921 defines this as “initiation of combustion of a material by an internal chemical or biological reaction that has produced sufficient heat to ignite the material.” (more…)

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