Hi Terry, Let's examine the workings of the Sprain Mag Motor in Carnot cycle terms.
With reference to the diagram at: http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/carnot.html the conventional Carnot cycle takes the following clockwise path. Isothermal expansion Adiabatic expansion Isothermal compression Adiabatic compression To get the refrigeration or heat pump cycle we have circle around widdershins, i.e. Adiabatic compression Isothermal compression Adiabatic expansion Isothermal expansion Now the adiabatic and isothermal sections of the path are often looked at in terms of the introduction and the removal of an insulator for heat. With the insulator present we have adiabatic conditions. With the insulator absent we have isothermal conditions. But we can view the insulator as merely a means of slowing the systems internal "biological" clock. Insulator present, the internal clock runs slow. Insulator absent, the internal clock runs fast. But we can do away with the insulator and achieve the same effect by manipulating the system's external clock. Now the Carnot cycle becomes, Slow expansion - Heat has long time to enter system. Fast expansion - Heat has little time to enter system. Slow compression - Heat has long time to exit system. Fast compression - Heat has little time to exit system. Assuming that the Sprain Mag Motor works, it seems to me that it has the essentail elements needed to take the working fluid (internal Beta-atmosphere) around a hysteresis cycle. We have the slow build up as the arm circles through nearly 360 degrees - and we have the rapid reversal provided by the electronic bag of tricks. I now understand why the thing is so damned big compared to the Kawai/Takahashi motor - and why the rotor arm turns nice and slow - a great help for a doubting Thomas like me for whom seeing is believing. 8-) The slower that the build up can take place, the better. One needs a very large arm (or arms) and a gearing system to drive a generator. I visualize a vertical arrangement which looks like one of those enormous 19th Century overshot watermill wheels that were used to provide all the energy needs for manufacturing. The Old Bale Mill overshot wheel at Calistoga, California is a good example. See:- http://www.spoom.org/locator/States-HTML/CA/CA-Mill-HTML/CA-028-001BalesMill.htm http://tinyurl.com/mxksq Cheers, Frank Grimer
