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| Thread ID: 58800 | 2005-06-12 11:40:00 | Electric motors take over. | Cicero (40) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 363381 | 2005-06-12 11:40:00 | For the scientific minds to peruse. www.memagazine.org |
Cicero (40) | ||
| 363382 | 2005-06-12 20:11:00 | Excellent article, thanks fr the great read. | netchicken (4843) | ||
| 363383 | 2005-06-13 07:07:00 | :rolleyes: The hype takes a bit of wading through. Let's talk efficiencies, my old Machinery's Handbook, says this for typical machine elements: Bearings 95% to 98% Belting from 96 to 98% Chain transmission 97 to 99% I dont think there is any generator to electric motor conversion plus controller that will give 90% + efficiency. |
Terry Porritt (14) | ||
| 363384 | 2005-06-13 07:23:00 | :rolleyes: The hype takes a bit of wading through. Let's talk efficiencies, my old Machinery's Handbook, says this for typical machine elements: Bearings 95% to 98% Belting from 96 to 98% Chain transmission 97 to 99% I don't think there is any generator to electric motor conversion plus controller that will give 90% + efficiency. What we are talking about is the lack of efficiency of the drive train from the power source. |
Cicero (40) | ||
| 363385 | 2005-06-13 08:25:00 | I know, just being provocative. Another advantage of diesel electric is that the diesel engine/turbo charger can be run near to its most efficient operating point for much of the time. Then when it comes to hybrid diesel/battery/electric, acceleration power can come from the batteries rather than from the diesel, and the diesel can be much smaller. |
Terry Porritt (14) | ||
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