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Distillation Controller with PIC processor - part 2

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  • tyto_negro
    Hi all, In January I posted on my first try-outs with a home build, PIC-controlled, distillation controller. It s here:
    Message 1 of 1 , Mar 29, 2013
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      Hi all,

      In January I posted on my first try-outs with a home build, PIC-controlled, distillation controller.

      It's here:
      http://groups.yahoo.com/group/Distillers/message/48744

      I found out that controlling the temperature of the alcohol vapour is cumbersome and probably not very reliable for use with a pot still in domestic environment. By watching and monitoring the distillation process I learned a lot. I found that the distillate output is directly coupled to the power input. Very logic of course if you start thinking of it. Therefore I took a new approach to the process. I changed the whole program and started from scratch. This time with the heat of evaporation of alcohol and water as the basic starting point.
      This turned out to work very well. I made a demo video of spirit run that I did with my controller. The whole run was done without any intervention, except for making the cuts.

      You can watch the video (15 min.) on my blog:
      http://steppewolf.cato-projects.org/?x=entry:entry130327-211130

      or on YouTube:
      http://www.youtube.com/watch?v=-YFfQJD2TJs

      In the video you can see the results. I'm very pleased with the results so far. There still are a lot of small enhancements to be made and I'm planning to have other operating modes in the controller to make it into an universal temperature controller with an edge.

      As always, I'm curious about your commenst, tips etc.

      Enjoy,

      Saude,

      Tomas
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