General Information

MHI Energy Conversion Calculator

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Note: There will be rounding errors when converting from very large units to very small units, and vice versa.

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The JOULE (J) is a commonly used unit of energy. The BTU is also an unit of energy. Another typical unit for energy is KWhr (Kilo-Watt-Hour). 1kJ (KiloJoule) = 0.9485 BTU=0.0002778 kWhr

The Watt (W) is a unit for power i.e. the energy used (or supplied) per unit time. 1 J/s (Joule per second) = 1 W (Watt)
Power-Units Conversion 1kW (KiloWatt) = 3414 BTU/hr

How much energy and what kind of power will be suitable for your heating application? The calculators below may be used to calculate the energy required for common processes. Then by choosing a time over which the energy will be used one can calculate the best power required from the heater.

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Energy (used or delivered)	Time (This is the time over which the energy was used or delivered)
Joules		Watts (UNIT OF POWER)
Watt Hours		Kilowatts (UNIT OF POWER)
Kilowatt Hours		Horsepower (UNIT OF POWER)
BTU		BTU/hr. (UNIT OF POWER)
Therms		tons (ODD LOOKING UNIT BUT USED FOR POWER ALSO)
This is the average power in full sunlight falling on a square foot surface, directed toward the sun, and collecting hours each day. (To Clear Results Above)

** The following table illustrates how various energy storage systems would store this amount of energy **

Chemical	gallons of gasoline ( pounds)
	pounds of natural gas ( cubic feet at psi),
	pounds of hydrogen Gas ( cubic feet at psi),
	a lead-acid battery weighing pounds
Mechanical (Kinetic)	a high-tech flywheel weighing about pounds
Mechanical (Kinetic)	a pound car traveling at miles per hour
Thermal	melting a block of ice weighing pounds
	heating a gallon tank of water by degrees F.
	evaporating pounds (about gallons) of water
	heating a pound hunk of concrete by degrees.
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