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The best introduction to pulse-jets I found is from Bruno Ogorelec (Croatia) [http://www.pulse-jets.com/valveless/index.htm here] The pulse-jet can be used as a "gas-generator" for gas-turbine. * many people have run it on propane. Propane is simplest fuel for experiments ** however, in the end we should be able to use wood-gas as fuel. See MembersPage/MarcellGal/WoodGasifierEngine ** Running on woodgas is not trivial. We need '''separate intake for air and woodgas, only mixing inside the detonation chamber'''. We need a BIG gasifier throat. Not 3" throat, maybe 10-12 inch. ** blower (not compressor: the blower pressure ratio is 1.05 .. 1.1) needed, probably all the time (not just to start the gasifier) ** if the standard measures to redirect high speed output gas-stream from the incoming gas does not work ("prohibitive blowback"), we can try Nikola Tesla's Valvular Conduit (1920 patent) ---- I have sketches of a detonation chamber. We are optimizing it for * KKK K-28 turbocharger ** can someone recommend a '''gas-flowrate for KKK K28 turbine (pressure ratio appr 2-2.5 ) ?''' Near best efficiency would be nice ** using both inputs or just the "outer output" (the closer to the exhaust) ? ** what '''power engines is the K28 used in ?''' 320-450 Hp ? * with 6 NdBFe magnet axial-gap alternator with Ferrite stator coils We expect to lower the (otherwise extreme) noise level of the pulse-jet in several ways * chamber shape * output snake with different-length runners so the pulse from the same detonation arrives to the turbine at different times. * the turbine itself helps a LOT to reduce noise (the MembersPage/MarcellGal/PowerAndTraction has a straight-through exhaust system after a K26 turbine, still not very loud) ** we might use low pressure ratio secondary turbines (nozzle + tesla turbine) in series * mounting in underground well Hopefully it should be suitable for rural water-pumping, or power-plant for other usage.
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