
Trash, as it turns out, is an attractive feedstock. There are several commercial companies developing technologies that use wastes as fuel. The military currently burns its trash in incinerators, emitting icky emissions and eating up a lot of fuel, time, and human power since it takes quite a few people to run one. Also, cutting down on the use of diesel fuel is especially important since the trucks that haul the fuel are basically moving targets sure to make huge bangs. They have developed a prototype generator that uses trash as fuel to generate power. The generator is called TGER (“tiger”) and the acronym stands for Tactical Garbage to Energy Refinery. The prototype, which uses a variety of technologies to run an electrical generator, will be tested until August. The purpose of the unit is to cut down on the amount of diesel fuel used and to cut down on the amount of garbage that camps generate, which are security risks. The wet and dry wastes are separated. The dry trash is crushed, pelletized, and fed into a gasifier where the pellets are heated until they’re turned into synthetic gas, which then fuels the generator. The wet waste is converted with the use to enzymes into hydrous ethanol, which is then blended with synthetic gas to boost the generator’s output to 55 kW.
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