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For farmers, to '''use the sunflower seed''' (in oil form) '''as heat-engine fuel''' (for '''tractors, water-pumping, grinding, heat-pump, generate electricity or other shaft-power''') '''just does not make sense'''. They have the stalk, straw and weed. The intelligent and environment-friendly choice is to use these growing (CO2 neutral) fuel instead of depending on fossile. There are several choices. * gasification + Otto engine * gasification + Ericsson cycle (regenerated or recuperated) gas turbine '''probably the BEST !''' * direct burning + rankine cycle: steam engine or steam turbine or ORC (organic ranking cycle) * a combination of the above. More links and images [http://www.eleg.hu/tiki/tiki-index.php?page=FaG%C3%A1zos%C3%ADt%C3%B3 here] (Hungarian. We will continue in English here) [http://www.ideje.hu/images/Energy/WoodGasifier/ video] We built 2 FEMA-type downdraft gasifiers. * We will make a 3d with better heat-exchange between the incoming air and the wood-gas output, like in the mature gekgasifier.com * and a 4th one that is a big hole underground (covered) with pipes for primary and secondary air-in, gas-out, steam in. A big, sulfuric-acid resistant heat-exchanger (condensating for Nx10kW) cools output gas (warming the house at the same time) ** the target is to try the multiphase technology that was used for blue water-gas production (gas rich in Hydrogen, multiple times the heating value of continuous wood-gas). This might be an exteremely cheap and efficient way to reclaim heat with a rotating regenerator, otherwise wasted from Otto engines or gas turbines (or other powerplants with high waste-heat temperature, not steam-Rankine cycle of course!), making fuel consumption better from about 10kg coke to 7kg coke (for a certain amount of output energy) Besides Otto engine and trivial applications, we plan to use the wood-gas in radial-compressor gas turbines and MembersPage/MarcellGal/DetonationCycleGasTurbine ---- Use the VEMS Round to '''control the clean air feed "throttle" of a gasifier in order to improve the output''' * vacuum accumulator * PWM valve * pneumatic solenoid valve * vacuum actuator ** Marcell found several in the junkyard. eg BMW had near the manifold in several 6 cyl engines around 1990. ** most cars have flaps in the cabin-heating / air conditioning system actuated by vacuum valves ** audi (and other VW consortium) vehicles have pneumatic door-lock. These do not seem good, because designed for on/off operation What solenoid do they use to control the throttle ? The direction would be important (too low lambda => higher or lower PWM duty needed) Stepper would be nice. Unfortunately round does not have enough outputs to control 4 wire stepper. We have a v3 with blue LCD inside - to be mounted on a standalone 1.6L 4 cyl engine. The LCD equipped genboard v3 looks very cool
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