Automated Continuous Process Control Part 3 ppsx
Automated Continuous Process Control Part 3 ppsx
... output, %CO OBTAINING PROCESS CHARACTERISTICS FROM PROCESS DATA 31 c02.qxd 7 /3/ 20 03 8:20 PM Page 31 PROBLEMS 37 Figure P2 -3 (b) Process response. c02.qxd 7 /3/ 20 03 8:21 PM Page 37 PROBLEMS 2-1. Consider ... offset in the controlled variable. In some processes, Ms Es K C () () = mt m et () =+ () 100 PB PB = 100 K C TYPES OF FEEDBACK CONTROLLERS 43 c 03. qxd 7 /3/ 20 0...
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Automated Continuous Process Control Part 11 ppsx
... MULTIVARIABLE PROCESS CONTROL 1 2 3 4 5 6 PC 7 PT 7 AT 4 PT 1 TT 1 FT 3 AT 2 AT 1 C ompressor Reactor Cooler CW H eavies Column Product P Purge A B Figure P9-1 Process for Problem 9-1. c09.qxd 7 /3/ 20 03 7:55 ... shipping. 199 app_a.qxd 7 /3/ 20 03 8:01 PM Page 199 Automated Continuous Process Control. Carlos A. Smith Copyright ¶ 2002 John Wiley & Sons, Inc. ISBN: 0-47...
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Automated Continuous Process Control Part 1 pps
... CONTROL preflims.qxd 7 /3/ 20 03 8 :30 PM Page i 3 FEEDBACK CONTROLLERS 38 3- 1 Action of Controllers / 38 3- 2 Types of Feedback Controllers / 40 3- 2.1 Proportional Controller / 40 3- 2.2 Proportional–Integral Controller ... 208 Process 1: NH 3 Scrubber / 208 Process 2: Catalyst Regenerator / 211 Process 3: Mixing Process / 2 13 INDEX 215 x CONTENTS preflims.qxd 7 /3/...
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Automated Continuous Process Control Part 2 potx
... processes. 2 -3. 2 Multicapacitance Processes The following two examples explain the meaning of multicapacitance. Example 2 -3. 3. Consider the tanks-in-series process shown in Fig. 2 -3. 8. This process ... initial SELF-REGULATING PROCESSES 17 Figure 2 -3. 2 Response of outlet temperature. ppsia, fcfm, fcfm i , vp,% Figure 2 -3. 3 Gas tank. c02.qxd 7 /3/ 20 03 8:20 PM Page 17 system. As...
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Automated Continuous Process Control Part 4 pdf
... action of the controller and tune a PI controller. 60 FEEDBACK CONTROLLERS c 03. qxd 7 /3/ 20 03 8:24 PM Page 60 TUNING FEEDBACK CONTROLLERS 53 figure shows that it takes about 1.5 min for the controller ... 4-1.2 Cascade control of reactor. c04.qxd 7 /3/ 20 03 8:22 PM Page 63 CHAPTER 4 CASCADE CONTROL Feedback control is the simplest strategy of automatic process control that co...
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Automated Continuous Process Control Part 5 pps
... B 1 , B 2 , B 3 = constants Summer: OUT =+++KI KI KI B 11 22 33 0 S I 1 I 2 I 3 OUT SUM I 1 I 2 I 3 OUT Multiplier/divider: OUT = + () + () + + KKI B KI B KI B B 011 1 22 2 33 3 0 ¥ I 1 I 2 OUT MUL I 1 I 2 OUT ∏ I 1 I 3 OUT DIV I 1 I 3 OUT Square ... transmitter, 74 c05.qxd 7 /3/ 20 03 8:28 PM Page 74 Automated Continuous Process Control. Carlos A. Smith Copyright ¶ 2002...
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Automated Continuous Process Control Part 6 doc
... CONTROL TT 12 FC 11 TC 12 FT 11 Process stream vp Fuel Air PT 14 PC 14 LS 11 TT 13 TC 13 RFB RFB T stack T P F F F F set F F set F F set FO FC Figure 5 -3. 4 Heater temperature control, constraint control. c05.qxd 7 /3/ 20 03 ... Selective control for a plug flow reactor. c05.qxd 7 /3/ 20 03 8:28 PM Page 93 no more cooling is possible. At that time the temperature controller ca...
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Automated Continuous Process Control Part 7 pptx
... s + Operator's set High-pressure gas ST 34 Refrigeran t gas T -30 PT 33 C -30 Figure P5- 13 Turbine/compressor process for Problem 5-14. c05.qxd 7 /3/ 20 03 8:28 PM Page 121 5-16. High-pressure water ... Chlorination process for Problem 5 -3. c05.qxd 7 /3/ 20 03 8:28 PM Page 1 13 selective control. These techniques provide a realistic and simple method for improving pro...
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Automated Continuous Process Control Part 8 pptx
... drier. Mois,% (a) Mois,% H Sensor/transmitter (b) H c,%TO c,%TO c TO set % e TO% G C + - m CO % Sensor/transmitter Controller Mois,% (c) Figure 6-1.12 Developing the block diagram of the drier control system. c06.qxd 7 /3/ 20 03 8:27 PM Page 134 CONTROL LOOP STABILITY 133 c TO set % e TO% G C + - m CO % G V F lb min G 1 T F o , T F i o P psig u G 2 G 3 G 4 F gpm p / H (a) c ... 0.990...
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Automated Continuous Process Control Part 9 ppt
... NONLINEAR FEEDFORWARD CONTROLLERS FROM BASIC PROCESS PRINCIPLES 1 63 c07.qxd 7 /3/ 20 03 8:26 PM Page 1 63 EXTENSION OF LINEAR FEEDFORWARD CONTROLLER DESIGN 159 the algorithms provided by the control system ... realizable, feedforward controller is FFC = + + Ê Ë ˆ ¯ () 0 891 35 0 1 275 1 075 09 . . . s s e s H D DD == 100 30 00 0 033 % . TO gpm %TO gpm G e s D s = + - 0 03...
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