Temperature
A measure of the average energy of motion of the particles of a substance. Or Heat intensity
British Thermal Unit (BTU)
The amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit. 1 BTU=1055 joules or 0.293 watt-hours.
Water's boiling point
212�F
Water's freezing point
32�C
Convert Fahrenheit to Celsius
C = 5/9 (F - 32)
Convert Celsius to Fahrenheit
�F = (1.8װC)+32�
Conduction
The direct transfer of heat from one substance to another substance that it is touching. Requires air or water
Convection
the transfer of heat in a fluid through currents. Requires air or water
Forced Convection
The movement of a fluid by a fan or a pump, in order to force heat exchange.
Natural Convection
when warm, less dense fluid is pushed upward as cooler, more dense fluid sinks
Radiation
The transfer of energy through space. The only type of heat transfer that can travel through a vacuum
Sensible Heat
Heat energy that brings about a change in temperature. Occurs in Conduction and Convection.
Latent Heat
Heat absorded or given off when matter changes state
Latent Heat of Vaporization
Quantity of heat absorbed by a substance at which point it changes from a liquid to a vapor.
Latent Heat of Condensation
the energy released when water vapor condenses to liquid water
Latent Heat of Fusion
energy required to change a substance from a solid to a liquid (temp remains constant)
Specific Heat
The amount of energy required to raise the temperature of 1 gram of a substance by 1 degree
Sizing Heat Formulas
Q = Quantity
Q = Weight � Specific Heat � Temperature Difference
Pressure
Force per unit area.
Pounds per square inch (psi)
...
The unit to measure electrical power