<font color='black' size='2' face='arial'><font size="2">Lot easier way to do it. </font><br>
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<div style="font-size: 13px; clear: both;"><font class="Apple-style-span" face="arial">Sincerely,</font><br>
<div><font class="Apple-style-span" face="'Comic Sans MS', sans-serif">Leland T. "Tom" Taylor</font></div>
<div><font class="Apple-style-span" face="Arial, Helvetica, sans-serif">Thermogenics Inc. </font></div>
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<div style="font-size: 10pt; font-family: helvetica, arial; color: black;">-----Original Message-----<br>
From: gasman <gasman@welho.com><br>
To: Discussion of biomass pyrolysis and gasification <gasification@lists.bioenergylists.org><br>
Sent: Wed, May 20, 2015 7:11 am<br>
Subject: Re: [Gasification] Two Engines One Gasifier<br>
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Hello, Jeff!
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There are two logical "formulations" that, when both used, gives a practical working solution for an "independent" motor starting from a common gas-line.
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A common gasifier delivery line usually (in a good system) keeps below 50 cm H2O.
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A motor with tight valves, without overlap and hidden crankcase ventilation into the manifold develops ~ 500 cm H2O at cranking.
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Combined with the fact:
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Identical pressure drops over identical openings (slots) results in IDENTICAL FLOWS. (with similar fluids)
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Using identical ganged twin flaps with identical geometry for gas and air will deliver a 50/50 air/gas mix, if starting both from atmospherical pressure.
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The secondary air intake pressure has to be regulated to equal the momentary gas-line
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pressure with a membrane and air-line flap, sensing the resulting air-pressure versus the gas-line pressure.
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This way the total pressure drops in both "legs" will constantly be equal.
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To furthermore assist slow crank starting, the twin-flaps will be closed by a trimmable spring closing the flaps COMPLETELY.
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A manifold-vacuum membrane or cylinder, diameter ~2-3" opens the twin-flaps
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when the spring starts to give in for a vacuum of ~100 - 200 cm H2O.
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This opening increases as the motor fires, and has to be controlled by a manually settable stopper = idle limiter!
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When fired, there has to be a "change over" to automatic run...
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Max Gasman
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------ Originalmeddelande ------
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Från: "Jeff Davis" <
<a target="_blank" href="mailto:jeffdavis0124@gmail.com">jeffdavis0124@gmail.com</a>>
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Till: "Discussion of biomass pyrolysis and gasification" <
<a target="_blank" href="mailto:gasification@lists.bioenergylists.org">gasification@lists.bioenergylists.org</a>>
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Skickat: 30.3.2015 03:47:47
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Ämne: [Gasification] Two Engines One Gasifier
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<div dir="ltr">Dear List,</div>
<div dir="ltr">Is it practical to fuel two engines with one gas producer? I think a check valve in each fuel line would be needed but would it be a problem to get the second engine running? My system would consist of a charcoal gas producer with two 6.5hp engines.<br>
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<div dir="ltr">Thanks,<br>
Jeff<br>
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<div dir="ltr">______________________________________________<br>
"Once an owner has got used to charcoal gas he will never revert to the more expensive fuels", Geo Bray</div>
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