Post by ogeezer on Mar 10, 2007 12:51:56 GMT -6
Heat energy is measured in a unit called the BTU, which stands for BritishTthermal Unit. A BTU is the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit. Using math, you could figure out how many Btu are in the one peanut or anything else, whether organic or inorganic. (The plural or BTU is still BTU, not BTUs.)
1 BTU = approximately: heat energy in 1 blue-tip kitchen match = 252 food calories = 1 hour of bicycling = the food energy in 4/5th of a peanut butter and jelly sandwich
Air conditioners are measured in Tonage, which is a reference to the amount of BTU produced when the system is working at maximum capacity. As such, 1 Ton of Air Conditioning = 12,000 BTU. When considering the amount of air conditioning needed to cool a space (such as a home), the general rule-of-thumb calls for 1 ton of air conditioning per 500 square feet of living area.
Natural Gas (and LPG or Liquified Petroleum Gas, such as propane) is traded in worldwide Stock Markets by the millions of BTU. Consumers generally purchase this gas by the hundred cubic feet (or CCF). 1 million BTU of Natural Gas = slightly over 9.70 CCF or as it is sold to us, 1 CCF will produce 103,046.7 BTU of heat energy.
Other measures of BTU energy are:
~~1 Kilowatt hour (1000 watts) of electricity produces about 3,412 BTU.
~~1 Therm (another measure of chemical heat energy) yields about 99,976 BTU.
~~To burn 1 calorie of nutritional energy (food), about 3.97 BTU of muscle energy must be used.
1 BTU = approximately: heat energy in 1 blue-tip kitchen match = 252 food calories = 1 hour of bicycling = the food energy in 4/5th of a peanut butter and jelly sandwich
Air conditioners are measured in Tonage, which is a reference to the amount of BTU produced when the system is working at maximum capacity. As such, 1 Ton of Air Conditioning = 12,000 BTU. When considering the amount of air conditioning needed to cool a space (such as a home), the general rule-of-thumb calls for 1 ton of air conditioning per 500 square feet of living area.
Natural Gas (and LPG or Liquified Petroleum Gas, such as propane) is traded in worldwide Stock Markets by the millions of BTU. Consumers generally purchase this gas by the hundred cubic feet (or CCF). 1 million BTU of Natural Gas = slightly over 9.70 CCF or as it is sold to us, 1 CCF will produce 103,046.7 BTU of heat energy.
Other measures of BTU energy are:
~~1 Kilowatt hour (1000 watts) of electricity produces about 3,412 BTU.
~~1 Therm (another measure of chemical heat energy) yields about 99,976 BTU.
~~To burn 1 calorie of nutritional energy (food), about 3.97 BTU of muscle energy must be used.