February 2005

Alcohol Still

Ethanol is produced from starch-based grains, including corn, barley, grass straw and fast growing poplar trees, and is a replacement or additive for gasoline. Ethanol is made using a process called fermentation.

Biodiesel Powered Bus

Bio-diesel, a clean burning, renewable diesel fuel substitute or additive, can be made from oil-seed crops, animal fat or vegetable oil. In the US, farmers grow mostly soybeans for bio-diesel, but canola or mustard seed are also viable feed stocks. Used fryer oil can replace about 5% of the diesel fuel used in transportation. Bio-diesel is made by chemically reacting lye and methanol with the animal or vegetable based oils and fats.

More info:

Planting the biofuel seed

Bio-fuel Tutorials

From https://www.hydrodelta.com/:

Horizontal Loop GSHP

Anyone who has a refrigerator

or air conditioner is already familiar with the operation of a geothermal heat pump. Contrary to common belief, cold is not something that is produced, but is a condition that results when heat has been removed. If you remember your high school physics class, you know that heat is produced by a molecular motion. All substances are made up of tiny molecules that are in a state of rapid motion. As the temperature of a substance is increased, the molecular motion increases, and as the temperature decreases, the molecular motion decreases. Molecules move faster on a warm surface than on a cool surface. Heat will flow from a warm substance to a cool substance. Reminder: Second Law of Thermodynamics.