Engineering Assignment Electrical and Instrumentation
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Added on 2020-05-11
Engineering Assignment Electrical and Instrumentation
Added on 2020-05-11
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SOLUTIONS TO THE QUESTIONS Question 1Start PC-ControLABPress PROCESSPress SELECT MODELIn front of you (middle right), select FLOW.MDL, and open this1.1What is the range of the PV in GPM?(1)0 – 50 GPM for current process variable1.2What is the approximate value of the PV in GPM?(1)25.5 GPM1.3Why is the PV acting the way it does (moving up and down slightly as the controller is in MANUAL)?Most controllers are integrated such that all the three fundamental control parameters, that is: P, I and D-controller parameters are harmoniously combined to bring about a smooth functional output. In the manual mode, this feature is lost hence due to systemic and external interferences (noise), the PV profile will be dominated by overshoots and undershoots. Tuning will require error correction that involves establishing the difference between the targeted value and the actual value and this must be minimized in the process (Didactic, 2014). (2)Press VIEW (near the top)
Advanced Diploma of Electrical and Instrumentation (E&I) Engineering for Oil and Gas Facilities (DEI)2Select HORIZONTAL GRID SCALE, and select SECONDSStill under VIEW (near the top), select DISPLAY RANGE and select PERCENT OF SPANClick on PROCESS (near the top) and then click on CHANGE PARAMETERSIn the middle, under item 26, you will see something that says “Valve Po: 0=no; 1=Yes”. Click on this, and it will ask you for a NEW VALUE. (The present value will be 0). Just type in a value of 1.At the bottom, click on OUT, and take the OUTPUT to 35%tmp5aoa5fb91788899_889842918_EngineeringProcessControl64067.docx
Advanced Diploma of Electrical and Instrumentation (E&I) Engineering for Oil and Gas Facilities (DEI)3Jot down the approximate PV(15%)At the bottom, click on OUT, and take the OUTPUT to 60%Jot down the approximate PV(38%)tmp5aoa5fb91788899_889842918_EngineeringProcessControl64067.docx
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