【Daily Question: Pump Equipment】Fill-in-the-blank question, April 15, 2019

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This post was last edited by 3983596_FPPZ on 2019-4-15 09:42: bk12.jpg. 1. Those who get both questions wrong receive +2 Wealth for active participation; those who get one question wrong and one right receive +5 Wealth; those who get both questions right receive +8 Wealth. 2. If only one answer is provided, unless it is clear which question’s answer it is, a correct answer earns +5 wealth points, while an incorrect answer earns +2 wealth points; in all other cases, it is counted as active participation and awards +2 wealth points. 3. Rewards for answers are available once per person only. 4. Each reply allows scoring for only one person. 5. The answer and its explanation will be visible after responding. 6. The reward is valid for 48 hours; no reward will be given after that period. The student has won another award; come by here every day. For a centrifugal pump with a flow rate of 230 T/h, a medium specific gravity of 1.05, a head of 36 m, an efficiency at the operating point of 73%, and a rotational speed of 2950, the shaft power of the pump is ( ) KW, while the power required for the motor is ( ) KW. Answer: Shaft power = 230*36/(3.6*102*0.73) = 30.9 KW ； 37KW