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| Gallon (gal) |
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A unit of volume. A US gallon is equal to 4 quarts or 231 cubic inches (approximately 3.79 liters). A British imperial gallon is equal to four quarts or 4.55 liters.
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| Gasification |
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A chemical or heat process to convert a solid fuel to a gaseous form.
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| Gasifier |
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A device for converting solid fuel into gaseous fuel. In biomass systems, the process is referred to as pyrolitic distillation.
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| Gauge pressure |
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A pressure scale which ignores atmospheric pressure. Its zero point is 14.7 psi absolute.
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| Gigawatt (GW) |
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A measure of electrical power equal to one billion watts (1,000,000 kW).
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| Glue |
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Originally, a hard gelatin obtained from hides, tendons, cartilage, bones, etc., of animals. Also, an adhesive prepared from this substance by heating with water. Through general use the term is now synonymous with the term "Adhesive".
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| Glycerin |
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A liquid by-product of biodiesel production. Glycerin is used in the manufacture of dynamite, cosmetics, liquid soaps, inks, and lubricants.
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| Gram (g) |
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A metric unit of weight equal to one thousandth of a kilogram; one ounce is approximately 28 grams.
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| Greenhouse effect |
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The effect of certain gases in the Earth's atmosphere in trapping heat from the sun.
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| Greenhouse gases |
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Gases that provide an insulating effect in the earth's atmosphere, potentially leading to global climate change. These gases include carbon dioxide, methane, nitrous oxide, ozone, and water vapour.
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