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From: krw on 17 Mar 2010 18:33 On Tue, 16 Mar 2010 23:41:39 -0700, "JosephKK"<quiettechblue(a)yahoo.com> wrote: >On Tue, 16 Mar 2010 12:31:50 -0700 (PDT), bert <herbertglazier79(a)msn.com> wrote: > >>On Mar 15, 10:09�am, Sam Wormley <sworml...(a)gmail.com> wrote: >>> On 3/15/10 8:11 AM, bert wrote: >>> >>> > On Mar 14, 12:02 am, Sam Wormley<sworml...(a)gmail.com> �wrote: >>> >>> >> The total momentum-energy of the universe is fixed and constant. >>> >>> > Sam My lastest idea is to marry a wind turbine to large flywheel. Its >>> > machanical energy all the way down � TreBert >>> >>> � �Put one on your boat, Herb! >> >>Sam My Boat is so small.(just a barrel) Still wind was first used and >>every motor has a fly wheel. Flywheel can store energy. They are >>protential energy and go round and round I like that feature TreBert > >How odd, i can't think of an electric motor nor a turbine that has a flywheel. MG sets often have flywheels.
From: JosephKK on 17 Mar 2010 21:18 On Wed, 17 Mar 2010 07:19:24 -0700 (PDT), bert <herbertglazier79(a)msn.com> wrote: >On Mar 17, 2:41 am, "JosephKK"<quiettechb...(a)yahoo.com> wrote: >> On Tue, 16 Mar 2010 12:31:50 -0700 (PDT), bert <herbertglazie...(a)msn.com> wrote: >> >On Mar 15, 10:09 am, Sam Wormley <sworml...(a)gmail.com> wrote: >> >> On 3/15/10 8:11 AM, bert wrote: >> >> >> > On Mar 14, 12:02 am, Sam Wormley<sworml...(a)gmail.com> wrote: >> >> >> >> The total momentum-energy of the universe is fixed and constant. >> >> >> > Sam My lastest idea is to marry a wind turbine to large flywheel. Its >> >> > machanical energy all the way down TreBert >> >> >> Put one on your boat, Herb! >> >> >Sam My Boat is so small.(just a barrel) Still wind was first used and >> >every motor has a fly wheel. ^^^^^^^^^^^^^^^^^^^^^^^^^^^ >> > Flywheel can store energy. They are >> >protential energy and go round and round I like that feature TreBert >> >> How odd, i can't think of an electric motor nor a turbine that has a flywheel.- Hide quoted text - >> >> - Show quoted text - > >You should think a lot more. Rotor of electric motor is very heavy and >acts like its flywheel Same is true for the heavy blades of turbines. >Best read up on diesel electric trains. TreBert Just the same you had made a blanket statement that was easy to punch holes in. On top of that there are electric motors that do not have iron armatures precisely to reduce the rotating mass. Also the blades of high speed turbines are very decidedly not heavy, simply because they would come off at the high rotational rates (in excess of 100,000 rpm). Care to join the us readers?
From: Archimedes' Lever on 17 Mar 2010 23:21
On Wed, 17 Mar 2010 07:19:24 -0700 (PDT), bert <herbertglazier79(a)msn.com> wrote: >On Mar 17, 2:41�am, "JosephKK"<quiettechb...(a)yahoo.com> wrote: >> On Tue, 16 Mar 2010 12:31:50 -0700 (PDT), bert <herbertglazie...(a)msn.com> wrote: >> >On Mar 15, 10:09�am, Sam Wormley <sworml...(a)gmail.com> wrote: >> >> On 3/15/10 8:11 AM, bert wrote: >> >> >> > On Mar 14, 12:02 am, Sam Wormley<sworml...(a)gmail.com> �wrote: >> >> >> >> The total momentum-energy of the universe is fixed and constant. >> >> >> > Sam My lastest idea is to marry a wind turbine to large flywheel. Its >> >> > machanical energy all the way down � TreBert >> >> >> � �Put one on your boat, Herb! >> >> >Sam My Boat is so small.(just a barrel) Still wind was first used and >> >every motor has a fly wheel. Flywheel can store energy. They are >> >protential energy and go round and round I like that feature � TreBert >> >> How odd, i can't think of an electric motor nor a turbine that has a flywheel.- Hide quoted text - >> >> - Show quoted text - > >You should think a lot more. Rotor of electric motor is very heavy and >acts like its flywheel Same is true for the heavy blades of turbines. >Best read up on diesel electric trains. TreBert No turbine on diesel electric train. Piston diesel engine, driving electric generator, driving electric traction motor. The loading is so heavy that there is no "flywheel effect" of any of these components that makes any difference. The diesel engine rpm determines the rest based on the load. All three sponge into each other and rpm reductions play right down through the chain immediately without any flywheel effect whatsoever. Magnetic fields push hard... or not. Perhaps a water turbine cares not about the mass of its blades, but a jet engine turbine most certainly cannot have high centrifugal forces or the blades will explode (fly apart). They are deliberately kept as light as possible. The entire assembly rotates easily, to be sure, but I would not attribute a lot of "flywheel effect" or gyroscopic inertia to it, though it will have far more than ANY train component. It spins at 100k rpm! |