Current portable power generators are mainly based on internal combustion engine\nsince they present higher values of efficiency comparing to other engines; the main\nreason why internal combustion engine is not convenient for micro power generation\n(5 - 30 kW) is because of their heaviness. Micro and ultra micro gas turbine devices,\nbased on a micro compressor and a micro turbine installed on the same shaft,\nare more suitable for this scope for several reasons. Micro turbine systems have many\nadvantages over reciprocating engine generators, such as higher power density (with\nrespect to size and weight), extremely low emissions and few, or just one, moving\npart. Those designed with foil bearings and air-cooling operate without oil, coolants\nor other hazardous materials. Micro turbines also have the advantage of having the\nmajority of their waste heat contained in their relatively high temperature exhaust.\nMicro turbines offer several potential advantages compared to other technologies for\nsmall-scale power generation, including: a small number of moving parts, compact\nsize, lightweight, greater efficiency, lower emissions, lower electricity costs, and opportunities\nto utilize waste fuels. The object of this study is the experimental tests on\na stand-alone gas turbine device with a pre-heated combustion chamber (CC), to validate\nthe fuel consumption reduction, compared to an actual and commercial device,\nused on air models.
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