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19:07 Mar 14, 2018 |
Polish to English translations [PRO] Geography | |||||||
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| Selected response from: Frank Szmulowicz, Ph. D. United States Local time: 11:05 | ||||||
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4 | overshot and breastshot water wheel |
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overshot and breastshot water wheel Explanation: Overshot Vertical wheel with horizontal axle The water hits near the top of the wheel and in front of the axle so that it turns away from the head race Driving surfaces – buckets Water – low volume, large head Efficiency – 80 to 90% https://upload.wikimedia.org/wikipedia/commons/thumb/a/a8/Ov... Breastshot Vertical wheel with horizontal axle The water hits the wheel roughly central, typically between one quarter and three quarters of the height. Driving surfaces – buckets – carefully shaped to ensure that the water enters smoothly Water – large volume, moderate head Efficiency – 50 to 60% https://upload.wikimedia.org/wikipedia/commons/thumb/0/05/Br... https://en.wikipedia.org/wiki/Water_wheel |
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