Download PDF by Thomas E. Jenkins: Aeration Control System Design: A Practical Guide to Energy

By Thomas E. Jenkins

ISBN-10: 1118389980

ISBN-13: 9781118389980

ISBN-10: 1118777735

ISBN-13: 9781118777732

Learn tips to layout and enforce profitable aeration keep watch over systems

Combining ideas and practices from mechanical, electric, and environmental engineering, this publication permits you to research, layout, enforce, and attempt computerized wastewater aeration regulate platforms and procedures. It brings jointly the entire strategy specifications, mechanical gear operations, instrumentation and controls, conscientiously explaining how all of those parts are built-in into profitable aeration regulate structures. furthermore, Aeration keep an eye on method Design encompasses a host of useful, state-of-the-technology instruments for settling on strength and method advancements, payback calculations, procedure commissioning, and extra.

Author Thomas E. Jenkins has 3 a long time of hands-on event in each part of aeration regulate platforms layout and implementation. He offers not just the most up-tp-date thought and expertise, but additionally useful assistance and methods that may in basic terms be received via a long time of expertise. contained in the publication, readers will locate:

  • Full integration of approach, mechanical, and electric engineering considerations
  • Alternate regulate ideas and algorithms that offer greater functionality than traditional proportional-integral-derivative control
  • Practical issues and analytical strategies for approach overview and design
  • New feedforward keep watch over applied sciences and complex procedure tracking systems

Throughout the booklet, instance difficulties in accordance with box adventure illustrate how the foundations and strategies mentioned within the ebook are used to create profitable aeration keep an eye on structures. additionally, there are many equations, charts, figures, and diagrams to aid readers at each level of the layout and implementation technique.

In precis, Aeration regulate method Design permits engineering scholars and pros to layout platforms that meet all mechanical, electric, and method standards as a way to ascertain powerful and effective operations.Content:
Chapter 1 creation (pages 1–20):
Chapter 2 preliminary method overview (pages 21–48):
Chapter three Aeration methods (pages 49–76):
Chapter four Mechanical and subtle Aeration structures (pages 77–112):
Chapter five Blowers and Blower keep watch over (pages 113–160):
Chapter 6 Piping structures (pages 161–190):
Chapter 7 Instrumentation (pages 191–232):
Chapter eight ultimate keep watch over parts (pages 233–260):
Chapter nine regulate Loops and Algorithms (pages 261–308):
Chapter 10 keep watch over elements (pages 309–332):
Chapter eleven Documentation (pages 333–350):
Chapter 12 Commissioning (pages 351–370):
Chapter thirteen precis (pages 371–376):

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Additional resources for Aeration Control System Design: A Practical Guide to Energy and Process Optimization

Sample text

In mechanical aeration systems, the oxygen transfer rate is a key parameter. Solids handling and sidestreams will also change the organic loading to the aeration basin. Operator process control strategy will also affect energy use by the aeration system. Higher solids inventory (larger microbe population) directly affects the oxygen uptake rate. If the DO concentration in the mixed liquor is higher than necessary, it will result in increased air flow and aeration power. Operating unneeded aeration tanks at minimum air flow increases energy use without benefiting the process.

Rates and profit levels are generally overseen and regulated by governmental agencies. An often-overlooked resource in reducing energy cost is the electric company’s own engineers or customer service representatives. They are knowledgeable about the various rate structures and are able to explain the impact of various billing components on a treatment plant’s energy cost. The utility representatives have access to detailed and accurate usage data for each customer that can be invaluable in establishing baseline data and identifying cost reduction opportunities.

The other, more sophisticated analysis is, based on present value or present worth. It includes consideration of the time value of money, potential earnings from other investments, and inflation. Simple payback is more common in evaluating control system additions to existing facilities, and present worth analysis is more common in evaluating large projects or comparing aspects that are part of a major facility modification. 14 r¼ RÀI 1þI where NPW ¼ net present worth of investment, $, NPW > 0 means the investment is economically justified S ¼ annual savings, $ C ¼ capital cost for equipment and installation $, n ¼ total evaluation period, years I ¼ annual inflation rate, decimal R ¼ annual discount rate, decimal, typically the interest rate or rate of return on alternate investments r ¼ effective annual discount rate, decimal PWF ¼ present worth factor, dimensionless Regardless of which method of economic analysis is used, there is a considerable level of uncertainty involved.

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Aeration Control System Design: A Practical Guide to Energy and Process Optimization by Thomas E. Jenkins

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