Recent content by Richard Hed

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  1. Richard Hed

    Uniflow design theory

    Just be careful when you read in Maxwell's theory that when "the four equations" are explained--those are NOT Maxwell's equations. Maxwell had 20 equations. It was Oliver Heavyside who took those 20 equations when he found them and condensed them down to the well know four equations which...
  2. Richard Hed

    Designing steam engines

    What are you two talking about? When I go to that site, it is a foreign language that I have never seen before. PDF?
  3. Richard Hed

    Uniflow design theory

    That's great, that's too funny. Yesterday I watched Jay Leno's vid on his steam car collection. I didn't thimk I would enjoy it, but Leno is brilliant and he showed his two Dobles plus a cut-away of a Doble. the Main Doble used the steam right down to the last drop before being sukt into the...
  4. Richard Hed

    Uniflow design theory

    Yes, yes and yes. However, that frictional loss IS energy loss (heat loss). I suspect the back and forth thru the same passage, as you say, has some kind of loss like you are explaining--there is probably at some point a bit of "shock" in the sysstem somewhere which leads to inefficiency...
  5. Richard Hed

    Print reading question

    Yes, you are correct. I was not clear on what I meant. What I am thimking is that, say you have a part 4 units long but it is broken up into 3 or 4 sections like two bearings on the ends, a larger section then a larger yet section. As a machinist I might need to pencil in two dims that I wish...
  6. Richard Hed

    Print reading question

    Of course.
  7. Richard Hed

    Stephenson's Rocket--Working Model

    I have been making ER holders for the 1-1/2" spindle on my lathe. I recieved ER32s just now in the mail. Am making ER 32, 40, 50 and 11. Already succeeded with the 25--complete and works. I was surpized by the ER50, didn't know they made that but went to look for collets and they were 200+$...
  8. Richard Hed

    Uniflow design theory

    I am still wondering, however, in all this discussion, just how much exhausted steam DOES get exhausted thru the exhaust port. It certainly is relevant to designing an engine well (something the uniflo should do exceptionally well>). I too am trying to design a uniflo with up to 5 HP that...
  9. Richard Hed

    Uniflow design theory

    That indeed, was a nice refrain. Where did you find it?
  10. Richard Hed

    Stephenson's Rocket--Working Model

    I REALLY hate telling other people how nice their stuff is, as it might upstage myself. But in this case it is so obviously a nice build, I can tell you so. What's next?
  11. Richard Hed

    Uniflow design theory

    Thankyew, however, I did point out (caveats with that plate of ice cream and strawberries.) Well, did you like the plot?
  12. Richard Hed

    Uniflow design theory

    More rubbish, please.
  13. Richard Hed

    Designing steam engines

    I would have said "decide what power you want" which of course dictates the volume of the cylinder X the pressure X CPM (cycles per min.), and then said what you said.
  14. Richard Hed

    Uniflow design theory

    Well thanx for showing me that "designing steam engines" forum. My big problem with this particular discussion is that nowhere do I see exactly how much of the steam is exhausted? This is important. If 99% of steam is exhaussted, the tiny 1% left is virtually meaningless. If 95% is...
  15. Richard Hed

    Uniflow design theory

    that is not possible. To have a return pressure greater than the steam pressure would be going against the law of conservation of energy. (caveats with that of course.) If you couldn't exhaust at least 90% of the used steam, my guess, is that any machine would not work at all or at least very...
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