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Though deep canals of liberal cross-section increase cost of construction, they reduce power consumption of circulating pumps in service; section of intake canal is always made large enough, and canal is cut deep enough to ensure adequate supply, even at low water in river, but outlet canal is often made too small and too shallow, with result that pumps have to overcome an unnecessarily high resistance; in particular case, small section and depth of outlet canal was responsible for 0.8 per cent increase in annual energy consumption of circulating pumps.
Though deep canals of liberal cross-section increase cost of construction, they reduce power consumption of circulating pumps in service; section of intake canal is always made large enough, and canal is cut deep enough to ensure adequate supply, even at low water in river, but outlet canal is often made too small and too shallow, with result that pumps have to overcome an unnecessarily high resistance; in particular case, small section and depth of outlet canal was responsible for 0.8 per cent increase in annual energy consumption of circulating pumps.
Circulating water canals
Anord-Nung der Kuehlwasserkanaele
Schlicke, H. (author)
Waerme ; 52
1929
Article (Journal)
German
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