CONVERSIONS
Term BHP kWh
Description
Conversion
Boiler Horsepower
1 BHP = 33,476 BTUh
Kilowatt-hours
1 kWh = 3,413 BTU
HP
Horsepower
1 HP = 0.746 kW
kW/ton kW/ton
Kilowatt per ton of cooling
kW/ton = 12 / EER
Kilowatt per ton of cooling
kW/ton = 12 / (COP x 3.413)
COP COP EER EER
Coefficient of Performance
COP = EER / 3.413
Coefficient of Performance
COP = 12 / (kW/ton x 3.413)
Energy Efficiency Ratio
EER = 12 / kW/ton
Energy Efficiency Ratio
EER = COP x 3.413
Ton
Unit of capacity for cooling equipment
1 Ton = 12,000 BTUh
MBh
1,000 BTUh
1 MBh = 1,000 BTUh
Therm
100,000 BTU
1 Therm = 100,000 BTU (or 100 CF or 0.1 MCF)
CF
Quantity of natural gas
1 CF = 1 cubic foot (= approximately 1,000 BTU)
CCF MCF
Quantity of natural gas
1 CCF = 100 cubic feet
Quantity of natural gas
1 MCF = 1,000 cubic feet (or 10 CCF or 10 Therms)
SOURCES Terms defined in the Glossary were referenced from the following sources:
Compressed Air Challenge Best Practices for Compressed Air Systems DOE Office of Energy Efficiency DOE Office of Energy Efficiency and Renewable Energy. Motor Systems Tip Sheet #13 DOE Office of Energy Efficiency and Renewable Energy. Steam Tip Sheet #2
DOE Office of Energy Efficiency and Renewable Energy. Compressed Air Tip Sheet #3 DOE Office of Energy Efficiency and Renewable Energy. Compressed Air Tip Sheet #9 DOE Office of Energy Efficiency and Renewable Energy. Compressed Air Tip Sheet #13 DOE Office of Energy Efficiency and Renewable Energy. Motor Systems Tip Sheet #13 energy.gov Energy.gov SpyroCor Radiant Tube Inserts engineeringtoolbox.com focusonenergy.com Focus on Energy Energy Business Case Study Radiant heater bands cut energy use for plastics processors Focus on Energy Energy-efficient repulper rotor Best Practices
http://dictionary.reference.com/browse/aspiration http://encyclopedia2.thefreedictionary.com/air+motor http://www.engineershandbook.com/MfgMethods/blowmolding.htm http://www.merriam-webster.com
https://focusonenergy.com/sites/default/files/compressedairwebinar_presentation.pdf https://www.ashrae.org/resources--publications/free-resources/ashrae-terminology https://www.efficiencyvermont.com/For-My-Business/Ways-To-Save-and-Rebates/Compressed-Air/General-Info/More-Info www.tappi.org Wisconsin Focus on Energy Technical Reference Manual
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