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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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This note was uploaded on 02/07/2012 for the course ME 4232 taught by Professor Staff during the Fall '08 term at Minnesota.
- Fall '08