05630nam 2200769Ia 450 991097389930332120200520144314.0978661100945897812810094561281009458978142372275514237227529780080480251008048025X(CKB)1000000000350297(EBL)234968(OCoLC)647497559(SSID)ssj0000225915(PQKBManifestationID)11235940(PQKBTitleCode)TC0000225915(PQKBWorkID)10233338(PQKB)10527223(Au-PeEL)EBL234968(CaPaEBR)ebr10127984(CaONFJC)MIL100945(OCoLC)936903506(PPN)170271498(FR-PaCSA)40000832(MiAaPQ)EBC234968(FRCYB40000832)40000832(EXLCZ)99100000000035029720040127d2005 uy 0engurcn|||||||||txtccrPractical process control for engineers and technicians /Wolfgang Altmann ; contributing author, David Macdonald1st ed.Oxford Newnes20051 online resource (304 p.)Practical professional books from ElsevierIncludes index.9780750664004 0750664002 Cover; Front matter; Half Title Page; Dedication Page; Title Page; Copyright; Contents; Preface; 1. Introduction; 1.1 Objectives; 1.2 Introduction; 1.3 Basic definitions and terms used in process control; 1.4 Process modeling; 1.5 Process dynamics and time constants; 1.6 Types or modes of operation of process control systems; 1.7 Closed loop controller and process gain calculations; 1.8 Proportional, integral and derivative control modes; 1.9 An introduction to cascade control; 2. Process measurement and transducers; 2.1 Objectives; 2.2 The definition of transducers and sensors2.3 Listing of common measured variables 2.4 The common characteristics of transducers; 2.5 Sensor dynamics; 2.6 Selection of sensing devices; 2.7 Temperature sensors; 2.8 Pressure transmitters; 2.9 Flow meters; 2.10 Level transmitters; 2.11 The spectrum of user models in measuring transducers; 2.12 Instrumentation and transducer considerations; 2.13 Selection criteria and considerations; 2.14 Introduction to the smart transmitter; 3. Basic principles of control valves and actuators; 3.1 Objectives; 3.2 An overview of eight of the most basic types of control valves3.3 Control valve gain, characteristics, distortion and rangeability 3.4 Control valve actuators; 3.5 Control valve positioners; 3.6 Valve sizing; 4. Fundamentals of control systems; 4.1 Objectives; 4.3 Modulating control; 4.4 Open loop control; 4.5 Closed loop control; 4.6 Deadtime processes; 4.7 Process responses; 4.8 Dead zone; 5. Stability and control modes of closed loops; 5.1 Objectives; 5.2 The industrial process in practice; 5.3 Dynamic behavior of the feed heater; 5.4 Major disturbances of the feed heater; 5.5 Stability; 5.6 Proportional control; 5.7 Integral control5.8 Derivative control 5.9 Proportional, integral and derivative modes; 5.10 ISA vs Allen Bradley; 5.11 P, I and D relationships and related interactions; 5.12 Applications of process control modes; 5.13 Typical PID controller outputs; 6. Digital control principles; 6.1 Objectives; 6.2 Digital vs analog: a revision of their definitions; 6.3 Action in digital control loops; 6.4 Identifying functions in the frequency domain; 6.5 The need for digital control; 6.6 Scanned calculations; 6.7 Proportional control; 6.8 Integral control; 6.9 Derivative control; 6.10 Lead function as derivative control6.11 Example of incremental form (Siemens S5-100 V)7. Real and ideal PID controllers; 7.1 Objectives; 7.2 Comparative descriptions of real and ideal controllers; 7.3 Description of the ideal or the non-interactive PID controller; 7.4 Description of the real (interactive) PID controller; 7.6 Derivative action and effects of noise; 7.7 Example of the KENT K90 controllers PID algorithms; 8. Tuning of PID controllers in both open and closed loop control systems; 8.1 Objectives; 8.2 Objectives of tuning; 8.6 Loop time constant (LTC) method8.7 Hysteresis problems that may be encountered in open loop tuningThis book is aimed at engineers and technicians who need to have a clear, practical understanding of the essentials of process control, loop tuning and how to optimize the operation of their particular plant or process. The reader would typically be involved in the design, implementation and upgrading of industrial control systems. Mathematical theory has been kept to a minimum with the emphasis throughout on practical applications and useful information.This book will enable the reader to:* Specify and design the loop requirements for a plant using PID control* Identify andPractical professional books from Elsevier.Process controlProduction engineeringProcess control.Production engineering.629.8Altmann Wolfgang1798641Macdonald Dave1942-627440MiAaPQMiAaPQMiAaPQBOOK9910973899303321Practical process control for engineers and technicians4341517UNINA