drbubb Posted May 7, 2006 Report Share Posted May 7, 2006 EVERYTHING WE WANTED TO KNOW ABOUT ALGAE ENERGY- But were afraid to Ask. =============== Diesels can be run on almost any kind of oil: corn, soy, whale...but probably will end up running on a kind of algae since it is by weight 50% oil or so. The following comes from a wikipedia article: * Soybean: 40 to 50 US gal/acre (35 to 45,000 L/km) * Rapeseed: 110 to 145 US gal/acre (100 to 130,000 L/km) * Mustard: 140 US gal/acre (130,000 L/km) * Jatropha: 175 US gal/acre (160,000 L/km) * Palm oil: 650 US gal/acre (580,000 L/km)  * Algae: 10,000 to 20,000 US gal/acre (9,000,000 to 18,000,000 L/km) -------- Let’s discuss how algae can be used to produce hydrogen. Through a process called “biophotolysis” (breaking or splitting, utilizing an organism and light), green algae can split water into hydrogen and oxygen. There are two organisms required for this reaction: the green algae species Chlamydomonas MGA 161 and the photosynthetic bacterium, Rhodovulum sulfidophilum W-1S. Chlamydomonas MGA 161, when allowed to ferment, produces carbohydrate organics. Under anaerobic (without the presence of oxygen) conditions and in the presence of argon gas, the photosynthetic bacterium Rhodovulum sulfidophilum W-1S converts the organic carbohydrates to hydrogen. This experiment has been successfully performed in the laboratory at the Kansai Electric Power Company in Japan. Used on a large scale, this process is capable of producing millions of cubic feet of hydrogen gas, some of which can be directly converted to electricity using the fuel cell described above, and the rest stored in bottles for future use. Hydrogen is an absolutely clean fuel, the only waste being pure water. As you can see, the entire process is a self-contained operation requiring very little in the manner of raw materials. It is self-powered and sustainable. Each year we spend quite a bit of money for energy. In the United States, on average, each man, woman, and child uses more than 11,500 kilowatts of electricity. By contrast, the average per capita consumption of electricity in the African countries of Chad and Cameroon is 16 kilowatts. The average home in America has a roof area of approximately 125 square meters. Each day, the sun provides an average of 384 kilowatts of energy onto this surface. During one year this amounts to 140,060 kilowatts—about 12 times the energy the average person uses in the United States, and almost 8000 times more than the amount used by each person in Chad and Cameroon. All this energy is only from the roof! Most American homes are on at least a quarter of an acre (1,100 sq. meters). If a similar sized space were utilized for solar energy gain, it would provide almost 60 times more energy than the present U.S. per capita consumption. The point here is that it is possible—on one’s own property—to produce enough hydrogen gas from algae to power your entire home. Think what could be done in developing countries with algae to improve the standard of living! Not only do certain species of algae provide high quality nutrition, others can capture the sun’s energy and turn it into usable fuels. EXCERPT, from: http://www.celltech.com/resources/vt/Algaeenergy.html = = = = = LINKS: Seasteading Algae etc. : http://www.seastead.org/commented/paper/infra.html Link to comment Share on other sites More sharing options...
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