ECN437factsaboutenergy - ECN437 FactsAboutEnergy WhatisaBTU...

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ECN437 Facts About Energy What is a BTU? BTU stands for British Thermal Unit, a measure of energy. One BTU is not  much: it's equal to 0.25 food calories or about the amount of energy in the  tip of a match. To put this in perspective, the food energy in a peanut butter  and jelly sandwich is about 1250 BTU, one kwh of electricity is equivalent  to 3,412 BTU, a gallon of gasoline contains about 125,000 BTU, and one  short ton of coal (2000 lbs) contains about 20 million BTU. Because a single BTU is so small, energy is usually measured in thousands  or millions of BTU. For entire economies, energy is measured in quadrillion  BTU, or "quads" for short. A quadrillion is equal to 10^15. In 2002, total  US energy consumption was 97.4 quads. The metric equivalent of the BTU is the Joule. One quad equals  approximately 1.055 Exajoules (10^18 Joules).
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This note was uploaded on 04/05/2012 for the course ECN 437 taught by Professor Peterwilcoxen during the Spring '12 term at Syracuse.

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ECN437factsaboutenergy - ECN437 FactsAboutEnergy WhatisaBTU...

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