A flocculate is designed to achieve a velocity gradient of 50 s with a volume of 3000 m the viscosity of the water is 1.1x10 Pa-sec. The coefficient of drag paddle is 1.8 and paddle tip velocity is 0.8 m/sec. The relative velocity of the paddle is with respect to water is 70% of paddle tip velocity. The mass density of water is 1002 kg/m'. Calculate the power required for paddles and total area of the paddle blades. a) 7.57 kW and 45.98 m² b) 9.12 kW and 60.53 m? c) 8.25 kW and 52.10 m d) 6.38 kW and 39.59 m

A flocculate is designed to achieve a velocity gradient of 50 s with a volume of 3000 m the viscosity of the water is 1.1x10 Pa-sec. The coefficient of drag paddle is 1.8 and paddle tip velocity is 0.8 m/sec. The relative velocity of the paddle is with respect to water is 70% of paddle tip velocity. The mass density of water is 1002 kg/m'. Calculate the power required for paddles and total area of the paddle blades. a) 7.57 kW and 45.98 m² b) 9.12 kW and 60.53 m? c) 8.25 kW and 52.10 m d) 6.38 kW and 39.59 m

Sustainable Energy

2nd Edition

ISBN:9781337551663

Author:DUNLAP, Richard A.

Publisher:DUNLAP, Richard A.

Chapter18: Energy Storage

Section: Chapter Questions

Problem 4P

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