APPENDIX G – Pumps and Turbines
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Surge Analysis and the Wave Plan Method
Supplementary Material: Example Problems and Solutions
Appendix G – Problem 27
G.27 The weight moment of inertia of a pump impeller in GD 2 format = 1230 kgf-m 2 . Compute its weight moment of inertia in WR 2 format.
Weight moment of inertia WR 2 in N-m 2 = Moment of Inertia in GD 2 * (9.81 / 4) = 3016.57 N-m 2
Mass moment of inertia WR 2 in kg-m 2 = Moment of Inertia in GD 2 / 4 = 307.5 kg-m 2
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