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Second Lab Report 17098128.docx - PROCESS INSTRUMENTATION...

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PROCESS INSTRUMENTATION & CONTROL 302265 Experiment 1 Essentials of Process Control Level Control Process Name: Calvin Tse-Liang Chin Student ID: 17098128 Date: 28/10/2014
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Calvin Tse-Liang Chin 17098128 Table of contents: 1.0 Objectives 1.1 Experiment 1 2 1.2 Experiment 2 2 2.0 Background and Equipment 2 3.0 The PID Controller 2 4.0 Experimental Procedure 4.1 Experiment 1: Proportional Control of Flow Control (Closed loop, P only) 3 4.2 Experiment 2: Proportional Control of Flow Control (Closed loop, P + I) 3 5.0 Discussion 5.1 Introduction 4 5.2 P Only Controller 5.2.1 P Only Method of Control Graph 4 5.2.2 Analysis of the P Only Method of Control 5 5.3 P and I Controller 5.3.1 P and I Method of Control Graph 5 5.3.2 Analysis of the P and I Method of Control 6 6.0 Conclusion 6 1
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Calvin Tse-Liang Chin 17098128 1.0 Objectives 1.1 Experiment 1: To demonstrate the effectiveness of a P only controller to vary and control level 1.2 Experiment 2: To demonstrate the effectiveness of a P+I controller to vary and control level 2.0 Background and Equipment PCT50 Level Control Process is a process unit that provides an insight into the fundamentals of process engineering. It consists of a sump tank, variable speed centrifugal pump and a quick release connector. In this laboratory we had to carry out 2 exercises to demonstrate flow control by varying pump speed. These involved operating a proportional (P only) controller and a Proportional and integral (P+I) controller. Disturbances can be added as external variables, not controlled in any way by the operator or the system that impact the process. The main objective of a feedback
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