Mathematical Analysis of an Ideal ZED

[TinselKoala]

Now we are really getting somewhere! A machine that destroys energy, dissipating fifteen times as much power as you put into it! That would really come in handy for certain applications.

(Check very carefully to make sure you are not dividing by zero somewhere, or rounding to zero in a figure that goes into a calculation involving it as a denominator. Usually the spreadsheet will not permit you to divide by zero, but can you trust it always to do so?)

[MarkE]

MarkE,

I have a setup that is over 1500% loss.
B86-B94??
B142-B148??
B150-B151??

What about them?

[MarkE]

Now we are really getting somewhere! A machine that destroys energy, dissipating fifteen times as much power as you put into it! That would really come in handy for certain applications.

(Check very carefully to make sure you are not dividing by zero somewhere, or rounding to zero in a figure that goes into a calculation involving it as a denominator. Usually the spreadsheet will not permit you to divide by zero, but can you trust it always to do so?)

No, there is no energy destroyed.  The spreadsheet performs a number of comparisons that I think are informative.  For example it compares the percentage energy loss going from State 2 to State 3 versus the energy added in State 2.  That number can easily exceed 100% because of the energy that was stored by the time we got to State 1.  I would be concerned if someone can enter coefficients that result in negative energy at any one of the states. 

Webby is playing with the spreadsheet which is fine.  We'll see if he turns up any new problems that are real or not.

[MarkE]

I am getting what I think are non-real numbers, and wanted to make sure that what I am seeing in the spreadsheet is correct,, 264% loss?? with a 42% loss of total stored.

This does not seem real,, and so I was asking to make sure they are.

There are multiple cells that calculate different relative efficiencies.  Each is labelled with what I hoped would be self-evident descriptions.  Do you get any negative absolute energy values in any state?  If you think you have something that is screwed up then just post the spreadsheet with those values in it, preferably with the cells highlighted say using yellow fill or something like that.

[minnie]

    Webby,
                 think about this, when the "air" in your ZED is substituted with massless, incompressioble
    "air" it becomes solid, i.e. it will behave as if is full of hydraulic fluid.
         It will behave in a completely different manner than with springy air inside.
      Whatever you do with numbers you can't escape the fact that all the crap inside the ZED
     will only hinder the operation of a hydraulic ram.
        That's my way of thinking for what it's worth.
                                     John.