Given are the following data for a commercial centrifugal water pump: r1 = 100 mm, r2 = 178 mm, β1 = 30°, β2 = 20°, speed = 1440 r/min. Estimate (a) the design-point discharge, (b) the water horsepower, and (c) the head if b1 = b2 = 45 mm.
Added by Brent M.
Close
Step 1
To calculate V, we can use the following formula: V = π * D * n / (60 * 1000) where D is the diameter of the impeller and n is the speed in revolutions per minute. Using the given values, we have: D = (r1 + r2) / 2 = (100 + 178) / 2 = 139 mm V = π * 139 * Show more…
Show all steps
Your feedback will help us improve your experience
Adi S and 78 other Physics 101 Mechanics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
The geometry of a centrifugal water pump is $r_{1}=10 \mathrm{cm}$ $r_{2}=20 \mathrm{cm}, b_{1}=b_{2}=4 \mathrm{cm}, \beta_{1}=30^{\circ}, \beta_{2}=15^{\circ},$ and it runs at speed 1600 rpm. Estimate the discharge required for axial entry, the power generated in the water in watts, and the head produced.
A centrifugal pump has r2 = 9 in, b2 = 2 in, and β2 = 35° and rotates at 1060 r/min. If it generates a head of 180 ft, determine the theoretical (a) flow rate in gal/min and (b) horsepower. Assume near-radial entry flow.
Sri K.
Recommended Textbooks
University Physics with Modern Physics
Physics: Principles with Applications
Fundamentals of Physics
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD