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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
\(\large{ SEER =  \frac{ 1 \; \left(EER\;100\%\right) \;+\;42 \; \left(EER\;75\%  \right) \;+\;12\;\left(EER\;250\%\right)  }{100} }\) 
Symbol English Metric
\(\large{ SEER }\) = seasonal energy efficiency rating (varying weather conditions) \(\large{dimensionless}\)
\(\large{ EER }\) = energy efficiency rating \(\large{dimensionless}\)

 

Seasonal Energy Efficiency Rating (EER above 14) formula
\(\large{ SEER =  \frac{EER}{0.875} }\)
Symbol English Metric
\(\large{ SEER }\) = seasonal energy efficiency rating (when EER is above 14) \(\large{dimensionless}\)
\(\large{ EER }\) = energy efficiency rating \(\large{dimensionless}\)

 

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

 

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Tags: HVAC Equations Efficiency Equations

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