http://tech.groups.yahoo.com/group/VortexHeatExchanger/ Vortexing Plasma Fuel Reformer Design Wed, 06 Jan 2010 23:46:21 GMT ray_landfair http://tech.groups.yahoo.com/group/VortexHeatExchanger/message/8831 http://tech.groups.yahoo.com/group/VortexHeatExchanger/message/8831 I noticed on Paul's latest demo unit that the exhaust flow was opposite the intake flow. I know some members have experimented with the exhaust flowing the Wed, 06 Jan 2010 22:46:49 GMT john_h1977 http://tech.groups.yahoo.com/group/VortexHeatExchanger/message/8830 http://tech.groups.yahoo.com/group/VortexHeatExchanger/message/8830 Hi Naresh and Group, over the past weeks I have done a lot of modifications on my geet system and I finished them yesterday. This time I am experimenting with Wed, 06 Jan 2010 18:37:48 GMT dave_cahoon http://tech.groups.yahoo.com/group/VortexHeatExchanger/message/8829 http://tech.groups.yahoo.com/group/VortexHeatExchanger/message/8829 Raymond, No but I have thought about doing it with wax mold and electrotemp cement. A ceramic like material like the stuff spark plugs are made of. Dave Wed, 06 Jan 2010 18:35:25 GMT dave_cahoon http://tech.groups.yahoo.com/group/VortexHeatExchanger/message/8828 http://tech.groups.yahoo.com/group/VortexHeatExchanger/message/8828 Group, The wife and i drove into the nearist village with a hardware store. I purched all the materials for a 3/4 - 3/8 reactor a 1/4 cold role rod was very Wed, 06 Jan 2010 13:11:19 GMT narivasant http://tech.groups.yahoo.com/group/VortexHeatExchanger/message/8827 http://tech.groups.yahoo.com/group/VortexHeatExchanger/message/8827 Raymond, Yes. Actually, the plans in this group used to show using ceramic ball bearings for centering posts but nobody was getting any better results than Wed, 06 Jan 2010 02:26:31 GMT Kel Rigg http://tech.groups.yahoo.com/group/VortexHeatExchanger/message/8826 http://tech.groups.yahoo.com/group/VortexHeatExchanger/message/8826  Dave I have mine done with some tough wire from a welder, a small holes on each end of the inner pipe before the pipe is threaded. the holes end up being Wed, 06 Jan 2010 02:25:33 GMT Raymond http://tech.groups.yahoo.com/group/VortexHeatExchanger/message/8825 http://tech.groups.yahoo.com/group/VortexHeatExchanger/message/8825 has anyone here tried using ceramic bb in the place of steel posts? Wed, 06 Jan 2010 02:25:11 GMT dave_cahoon http://tech.groups.yahoo.com/group/VortexHeatExchanger/message/8824 http://tech.groups.yahoo.com/group/VortexHeatExchanger/message/8824 Naresh, Another geet powered msg The rod defiantly wants to spin, when I pull the rod up and let it slide back down it spins, the wire is spinning. But you are Wed, 06 Jan 2010 02:24:50 GMT dave_cahoon http://tech.groups.yahoo.com/group/VortexHeatExchanger/message/8823 http://tech.groups.yahoo.com/group/VortexHeatExchanger/message/8823 Hi all, This is a geet powered reply! I removed the rod from the little units while it was running and it killed the genny. I replaced it with just a plug and Tue, 05 Jan 2010 22:53:53 GMT narivasant http://tech.groups.yahoo.com/group/VortexHeatExchanger/message/8822 http://tech.groups.yahoo.com/group/VortexHeatExchanger/message/8822 Dave, ... I'm thinking your rod could spin better without the wire brazed to it. I'd think it better to have the wire connected to the plug rather than the Tue, 05 Jan 2010 16:58:51 GMT dave_cahoon http://tech.groups.yahoo.com/group/VortexHeatExchanger/message/8821 http://tech.groups.yahoo.com/group/VortexHeatExchanger/message/8821 Naresh, For the first runs I had the exhaust plumbed in with the propane BUT it seemed to run smoother when I disconnect and let the frigid air in. This unit Tue, 05 Jan 2010 16:56:55 GMT dave_cahoon http://tech.groups.yahoo.com/group/VortexHeatExchanger/message/8820 http://tech.groups.yahoo.com/group/VortexHeatExchanger/message/8820 adrionuz, Its a gutter nail braised to a short length of stainless wire that protrudes through the npt plug. Its black now no rings. The Inner tube (stainless) Tue, 05 Jan 2010 16:23:45 GMT narivasant http://tech.groups.yahoo.com/group/VortexHeatExchanger/message/8819 http://tech.groups.yahoo.com/group/VortexHeatExchanger/message/8819 Kel, Vertical sounds like a good idea. I think your logic is correct. You ought to be able to make the inner and outer tubes shorter also, like maybe 2 inches Tue, 05 Jan 2010 15:35:28 GMT Kel http://tech.groups.yahoo.com/group/VortexHeatExchanger/message/8818 http://tech.groups.yahoo.com/group/VortexHeatExchanger/message/8818 I am going to totally rebuild the Geet I have and point the turkey to the sky. Being that I am using a 9-1/6 rod and taking the consideration of the weight of Tue, 05 Jan 2010 15:35:24 GMT Kel Rigg http://tech.groups.yahoo.com/group/VortexHeatExchanger/message/8817 http://tech.groups.yahoo.com/group/VortexHeatExchanger/message/8817 I have done that. I put a tee in the fresh air intake to the bubbler with a vale to adjust fresh air intake. I used a LP tank from my gas grill and found it