Class10_CV_conservation_of_energy_losses

Class10_CV_conservation_of_energy_losses - Picture you take...

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ES330, Section 2 Dr. Douglas Bohl 239 Camp x6683, dbohl@clarkson.edu www.clarkson.edu/~dbohl/es330 9/28/06 1 Animations created using CFD www.fluent.com
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Outline • Derive the Conservation of Energy – Head loss – Efficiency – Examples! • Learning Objective: Be able to apply the Conservation of 2 Energy to a Control Volume with losses Announcements • Read sections 5.3,5.6,5.7 • HW#5 Posted on web page • The semester project is posted, Due 11/30 • Have a good break! I will see you on 9/30….
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Semester Project Observe the world around you and find an interesting (to you) fluid dynamic flow field . The flow can be made visual either by naturally occurring means (e.g. bubbles in a river) or 3 through your actions (e.g. adding cream to coffee). Take a picture of the flow that shows the interesting flow phenomena. The picture must be one that you take (i.e. you cannot use pictures downloaded from the web, scanned from other sources, etc.)
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Semester Project • Deliverables are
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Unformatted text preview: Picture you take 1-2 Page report describing the picture, flow henomena, etc. (see report requirements) 4 phenomena, etc. (see report requirements) At the end of the semester we will have a poster session in CAMP atrium Example A pump moves water horizontally at 0.02 m 3 /s. Upstream of the pump the pipe dia is 90mm and the pressure is 120 kPa. Downstream of the pump the dia is 30mm and the pressure is 400 kPa. If the loss in energy across the pump due to friction is 170 Nm/kg determine the efficiency of the pump. pump 5 1 2 6 7 Example An axial flow fan is driven by a motor that delivers 0.4kW to the fan blades. The fan produces an 0.6m stream that has a uniform velocity of 12 m/s. The flow upstream of the fan has negligible speed. Determine how much of the work provided by the fan is converted to useful fluid motion. Estimate the efficiency of the fan. fan 8 0.6m, 12 m 2 9 10 11 12...
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This note was uploaded on 09/30/2010 for the course FLUIDS ES 340 taught by Professor Bohl during the Fall '10 term at Clarkson University .

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Class10_CV_conservation_of_energy_losses - Picture you take...

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