Process Control in Practice (Paperback)

Langue : anglais

Edité par Independently Published, 2026

ISBN 13 : 9798193816287

Vendeur : CitiRetail, Stevenage, Royaume-UniCitiRetail

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Paperback. PID tuning is the last home of folklore in the plant - rules handed down, numbers copied from one loop to the next, and a widespread belief that it is an art. It is not. It is a procedure that starts from a measurement of how the process actually responds, and the reason almost nobody does it is that almost no book explains how to make that measurement. This one starts there. It is written for the technician who has to make a plant hold a value and then defend the result - and it teaches the honest truth most books avoid: a loop that will not hold almost always has its problem OUTSIDE the controller, in the measurement, the valve, or the process dynamics. Changing the gains only hides it. - **The step test** - how to measure process gain, dead time and time constant off a trend with a ruler. No Laplace transform appears anywhere in the book.- **Tuning as a procedure** - with a defined stopping point, and the dead-time-to-time-constant ratio that tells you honestly when tuning cannot help at all.- **Valves for real** - characteristic, authority, the installed characteristic, and why an oversized valve controls only in the first fifth of its travel.- **The structures a single loop cannot replace** - cascade on the dead-time-bound chlorine loop, ratio on the coagulant dose, feedforward, override, split range, and the two loops that fight each other until you deliberately slow one down.- **Diagnosis from the trend** - telling bad tuning from a sticking valve from a dead-time-bound loop, each by its signature. Every chapter ends by producing a completed field document - a step test record, a tuning record, a valve sizing sheet, an oscillating-loop diagnosis, a commissioning report - filled in with real numbers and reproducible with a pen. The blank forms are collected in Appendix D to photocopy. **No brand names anywhere.** The volume runs on one fictional plant - Ashford Bend Water Treatment Plant - the same plant as Volume 1. Volume 1 is not a prerequisite, but this book assumes the measurement is already trustworthy; making it trustworthy is Volume 1's subject. This item is printed on demand. Shipping may be from our UK warehouse or from our Australian or US warehouses, depending on stock availability.…

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Détails bibliographiques

Titre
Process Control in Practice (Paperback)
Auteur
Owen T. Marsh
Éditeur
Independently Published
Année de publication
2026
État de l'article
new
Reliure
Paperback
Langue
anglais

CitiRetail

Stevenage, Royaume-Uni

Vendeur avec une évaluation de 5 étoiles

Vendeur AbeBooks depuis 29 juin 2022

Frais d'expédition de Royaume-Uni vers Etats-Unis

Article7 à 14 jours ouvrés7 à 60 jours ouvrés
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