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Seasonal Energy Efficiency Rating

on . Posted in HVAC Engineering

Seasonal energy efficiency rating, abbreviated as SEER, also called seasonal energy efficiency ratio, a dimensionless number, measure the efficiency a residental central cooling will operate over an entire cooling season.

  • seasonal Btu of cooling
  • seasonal watt-hours used

 

Seasonal Energy Efficiency Rating (Varying Weather Conditions) formula
\( SEER \;=\; 1 \; ( EER \; 100\% ) + 42 \; ( EER \; 75\% ) + 12\; ( EER\;250\%\ ) \;/\;100 \) 
Symbol English Metric
\( SEER \) = Seasonal Energy Efficiency Rating (varying weather conditions) \(dimensionless\) \(dimensionless\)
\( EER \) = Energy Efficiency Rating \(dimensionless\) \(dimensionless\)

 

Seasonal Energy Efficiency Rating (EER above 14) formula

\( SEER \;=\; EER \;/\; 0.875 \)     (Seasonal Energy Efficiency Rating (EER above 14))

\( EER \;=\; SEER \; 0.875 \)
Symbol English Metric
\( SEER \) = Seasonal Energy Efficiency Rating (when EER is above 14) \(dimensionless\) \(dimensionless\)
\( EER \) = Energy Efficiency Rating \(dimensionless\) \(dimensionless\)

 

Seasonal Energy Efficiency Rating (EER below 14) formula
\( SEER \;=\; 1.12 - \sqrt{ 1.2544 - EER \; 0.08 }  \;/\; 0.04  \)
Symbol English Metric
\( SEER \) = Seasonal Energy Efficiency Rating (when EER is below 14) \(dimensionless\) \(dimensionless\)
\( EER \) = Energy Efficiency Rating \(dimensionless\) \(dimensionless\)

 

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Tags: Energy HVAC Efficiency

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