Supplementary Material, Appendix G – G.27

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 GD² format = 1230 kgf-m². Compute its weight moment of inertia in WR² format.

Solution:

Weight moment of inertia WR² in N-m²= Moment of Inertia in GD² * (9.81 / 4) = 3016.57 N-m²

Mass moment of inertia WR² in kg-m²= Moment of Inertia in GD² / 4 = 307.5 kg-m²

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