Problem 1. Water flows into the top of an open barrel at a constant mass flow rate of 30 lb/s. Water exits through a pip

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Problem 1 Water Flows Into The Top Of An Open Barrel At A Constant Mass Flow Rate Of 30 Lb S Water Exits Through A Pip 1 (42.41 KiB) Viewed 35 times

Problem 1. Water flows into the top of an open barrel at a constant mass flow rate of 30 lb/s. Water exits through a pipe near the base with a mass flow rate proportional to the height of liquid inside: m = 9L, where L is the instantaneous liquid height, in ft. The area of the base is 3 ft2, and the density of water is 62.4 lb/ft³. If the barrel is initially empty, plot the variation of liquid height with time and comment on the result (When does the height stay constant with time?) Engineering Model: 1. The control volume is defined by the dashed line on the accompanying diagram. 2. The water density is constant. m; = 30 lb/s Boundary of control volume A=3 ft² L (ft) m = 9L lb/s