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CO2 5. CO2 6. Gate valve, half open 2.06 72 A 20-mm diameter commercial steel pipe, 30 m long is used to drain a water tank. Determine the discharge when the water level in the tank is 3m above the exit of the pipe. Neglect the minor losses and assume f=0.012. (10pts) A pipe system connecting two reservoirs whose differences in water surface elevation is 13m, consists of 320m of 600mm diameter pipe (pipe1), branching into 640 m of 300mm diameter pipe (pipe 2) and 640m of 450mm diameter pipe (pipe 3) in parallel, which join again to a single 600mm diameter line 1300m long (pipe 3). Assuming f=0.032 for all pipes, determine the flow rate in each pipe. (25 points) A pipe network consists of pipeline 1 from A to B then at Bit is connected to pipelines 2 and 3, where it merges again at joint C to form a single pipeline 4 up to point D. Pipelines 1, 2 and 4 are in series connection whereas pipelines 2 and 3 are parallel to each other. If the rate of flow from A to B is 10 liters/sec and assuming f=0.02 for all pipes. Determine the flow in each pipe and the total head lost from A to D. (25 points) CO2 7. Pipelines 1 2 3 4 Length (m) 4,000 2,200 2,200 4,000 Diameter (mm) 200 300 200 400 Q2 Q1 Q4 D Q3