Exp-1-Epi.docx - CHE 312 PROCESS INSTRUMENTATION AND...

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CHE 312 PROCESS INSTRUMENTATION AND ENGINEERING EXPERIMENT 1 Lab Report: Proportional and Integral Controller Name: Muhamad Emirulfitri Abd Latib Student ID: 15282550 Due Date: 07/10/2013 Due Time: 10:00 AM
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1.0 OBJECTIVE The objective of the laboratory was to regulate, control and adjust the response of the tank level using a P-controller and PI-controller while introducing external disturbances to the system. The value of Proportional Band (P) and Integral Time (I) was normalised to minimise the error or gap between the true/actual value and the set point. The results and data obtained from both experiments were tabulated, interpreted and compared to determine which controller is better suited for a particular purpose. 2.0 RESULTS Sample Time (s) Level (mm) Valve Proportional Band (%) Integral Time (s) Set point Controller Output (%) 1 00:00 42 Closed 200 0 75 41 2 00:30 71 Closed 200 0 75 36 3 01:00 91 Closed 200 0 75 33 4 01:30 100 Closed 200 0 75 31 5 02:00 103 Closed 200 0 75 30 6 02:30 107 Closed 200 0 75 29 7 03:00 108 Closed 200 0 75 29 8 03:30 104 Closed 200 0 75 30 9 04:00 110 Closed 200 0 75 29 10 04:30 107 Closed 200 0 75 30 11 05:00 106 Closed 200 0 75 29 12 05:30 103 Open 200 0 75 30 13 06:00 98 Open 200 0 75 31 14 06:30 95 Open 200 0 75 32 15 07:00 94 Open 200 0 75 32 16 07:30 92 Open 200 0 75 32 17 08:00 93 Open 200 0 75 32 18 08:30 94 Open 200 0 75 32 19 09:00 90 Open 200 0 75 32 20 09:30 92 Open 200 0 75 32 21 10:00 94 Closed 200 0 75 31 22 10:30 100 Closed 200 0 75 30 23 11:00 105 Closed 200 0 75 30 24 11:30 103 Closed 200 0 75 29 25 12:00 109 Closed 200 0 75 30 26 12:30 103 Closed 200 0 75 29 27 13:00 109 Closed 200 0 75 29 28 13:30 109 Closed 200 0 75 29 29 14:00 112 Closed 200 0 100 33 30 14:30 119 Closed 200 0 100 32 31 15:00 128 Closed 200 0 100 31 32 15:30 132 Closed 200 0 100 30 33 16:00 133 Closed 200 0 100 30 34 16:30 133 Closed 200 0 100 30 35 17:00 130 Closed 200 0 100 30 36 17:30 121 Open 200 0 100 31 37 18:00 117 Open 200 0 100 32 38 18:30 114 Open 200 0 100 32 39 19:00 114 Open 200 0 100 33 40 19:30 115 Closed 200 0 100 32 41 20:00 123 Closed 200 0 100 30 42 20:30 126 Closed 200 0 100 30 43 21:00 128 Closed 200 0 100 31 44 21:30 133 Closed 200 0 100 29 45 22:00 126 Closed 200 0 100 30 46 22:30 127 Closed 200 0 100 30 47 23:00 127 Closed 200 0 100 31 48 23:30 130 Closed 200 0 75 26 49 24:00 125 Closed 200 0 75 27 50 24:30 119 Closed 200 0 75 27
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51 25:00 117 Closed 200 0 75 29 52 25:30 112 Closed 200 0 75 30 53 26:00 108 Closed 200 0 75 29 54 26:30 109 Closed 200 0 75 29 55 27:00 105 Closed 100 0 75 25 56 27:30 101 Closed 100 0 75 26 57 28:00 98 Closed 100 0 75 28 58 28:30 93 Closed 100 0 75 29 59 29:00 89 Closed 100 0 75 29 60 29:30 93 Closed 100 0 75 30 61 30:00 93 Closed 100 0 75 29 62 30:30 86 Open 100 0 75 31 63 31:00 83 Open 100 0 75 32 64 31:30 84 Open 100 0 75 33 65 32:00 90 Closed 100 0 75 30 66 32:30 91 Closed 100 0 75 29 67 33:00 89 Closed 100 0 75 29 68 33:30 90 Closed 100 0 75 30 69 34:00 98 Closed 100 0 100 36 70 34:30 113 Closed 100 0 100 31 71 35:00 117 Closed 100 0 100 31 72 35:30 118 Closed 100 0 100 29 73 36:00 114 Closed 100 0 100 30 74 36:30 112 Closed 100 0 100 31 75 37:00 117 Closed 100 0 100 29 76 37:30 116 Closed 100 0 100 30 77 38:00 113 Closed 100 0 100 29 78 38:30 108 Open 100 0 100 31 79 39:00 108 Open 100 0 100 33 80 39:30 106 Open 100 0 100 33 81 40:00 107 Open 100 0 100 32 82 40:30 112 Closed 100 0 100 31 83 41:00 112 Closed 100 0 100 29 84 41:30 114 Closed 100 0 75 22 85 42:00 109 Closed 100 0 75 23 86 42:30 106 Closed 100 0 75 25 87 43:00 100 Closed 50 0 75 17 88 43:30 95 Closed 50 0 75 20 89 44:00 92 Closed 50 0 75 24 90 44:30 88 Closed 50 0 75 25 91 45:00 85 Closed 50 0 75 28 92 45:30 80 Open 50 0 75 32 93 46:00 80 Open 50 0 75 31 94 46:30 83 Closed 50 0 75 28 95 47:00 84 Closed 50 0 75 29 96 47:30 102 Closed 50 0 100 35 97 48:00 105 Closed 50 0 100 30 98 48:30 106 Closed 50 0 100 31 99 49:00 104 Open 50 0 100 33 100 49:30 103 Open 50 0 100 34 101 50:00 108 Closed 50 0 100 27 102 50:30 108 Closed 50 0 100 30 103 51:00 110 Closed 50 0 100 31 104 51:30 109 Closed 50 0 100 29 105 52:00 104 Closed 50 0 75 15 106 52:30 101 Closed 50 0 75 18 107 53:00 96 Closed 50 0 75 21 108
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