Unformatted text preview: valve B. • Replace valve A with a needle valve and adjust it such that, it has the same flow rate at a pressure drop which is at the middle of the operating range of the circuit. You may need to adjust valve A and B together to obtain this particular setting. • Obtain the pressure vs. flow relationship for the needle valve at this setting and compare it to the PCFC. • Repeat all of the above steps for 4 different settings of the PCFC. Report Your report should include the following • Detailed explanation of the working principle for the PCFC • Brief description of the experiment • Plot showing the data that you have collected • Is your data consistent with the expected flow-pressure relationship for the PCFC that you predicted in the pre-lab exercise? • What can you say about the internal parameters of the valve? • Based on the data you obtained, discuss which of the valves i.e., PCFC or needle is better suited for flow control....
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- Fall '08
- Flow control, Valve, Gate valve, flow control valve, Needle valve