HP ProLiant SL270s HP ProLiant SL Servers Planning Guide - Page 42

Conversion factors and formulas, Conversion factors, Formulas

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Conversion factors and formulas Conversion factors The conversion factors provided here are intended to help in data calculation for systems that do not conform to the specific configurations listed in this guide. Listed below are the conversion factors used in this document, as well as additional conversion factors that can be helpful in determining those factors required for site planning. • Refrigeration o 1 watt = 0.86 kcal/h o 1 watt = 3.412 BTU/h o 1 watt = 2.843 x 10-4 tons o 1 ton = 200 BTU/min o 1 ton = 12,000 BTU/h o 1 ton = 3517.2 W • Equivalents o 1 centimeter = 0.3937 in o 1 meter = 3.28 ft o 1 meter = 1.09 yards o 1 inch = 2.54 cm o 1 foot = 0.305 m o 1 CFM = 1.7 m3/h Formulas The following formulas can be helpful in determining conversion factors required for site planning: • kVA = voltage x Current (amps) • Watts = VA x PF • BTU = Watts x 3.41 Conversion factors and formulas 42

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Conversion factors and formulas
42
Conversion factors and formulas
Conversion factors
The conversion factors provided here are intended to help in data calculation for systems that do not conform
to the specific configurations listed in this guide. Listed below are the conversion factors used in this
document, as well as additional conversion factors that can be helpful in determining those factors required
for site planning.
•
Refrigeration
o
1 watt = 0.86 kcal/h
o
1 watt = 3.412 BTU/h
o
1 watt = 2.843 x 10
-4
tons
o
1 ton = 200 BTU/min
o
1 ton = 12,000 BTU/h
o
1 ton = 3517.2 W
•
Equivalents
o
1 centimeter = 0.3937 in
o
1 meter = 3.28 ft
o
1 meter = 1.09 yards
o
1 inch = 2.54 cm
o
1 foot = 0.305 m
o
1 CFM = 1.7 m
3
/h
Formulas
The following formulas can be helpful in determining conversion factors required for site planning:
•
kVA = voltage x Current (amps)
•
Watts = VA x PF
•
BTU = Watts x 3.41