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Technical Articles
Operating Description For Local Control Panel (lcp) (combination Igv/vd Machine)
Details the start/stop sequence of single-stage centrifugal compressors.
Master Control Panel (mcp) For Sv Machine (combination Igv & Vd - Cascade Control)
Description of the cascade control of multiple compressors is detailed, along with control strategy and alarms.
Most Open Valve Control And Cascade Control Of Multiple Compressors Improve Aeration Efficiency & Cut Costs
Upgrade of a wastewater plant to implement instrumented/systems control will reduce power costs and manpower. Power costs are reduced by lowering system pressure, and optimized air flow. Software control loops are described, and three case studies presented.
Aeration System Upgrades At The Irvine Ranch (ca) Michelson Wrp Combines Energy Efficient Equipment With Instrumentation To Lower Power Consumption. One Year's Operation Provides Empirical Design Results
Irvine Ranch, CA recognized 40% power savings after upgrading from jet aeration to fine bubble and multi-stage to single-stage along with automation of the process.
High Efficiency Single-Stage Air Compressors And Systems Instrumentation Reduce Power In The Biological Wastewater Aeration Process
An especially good paper for electric utilities and rookie design engineers. A basic description of the wastewater aeration process and the equipment used. Different blower choices are explained, methods of instrumentation, and how to identify wastewater plants that are good candidates for upgrade.
Upgrade Of Aeration Diffusers, Blowers & Instrumentation Saves Upwards Of 50% Power: Case Study Of Two Wastewater Treatment Plants
Upgrade (replacement) of more efficient diffused aeration, aeration blowers, and providing systems instrumentation will save upwards of 30% of the overall power bill in a wastewater treatment plant. This equipment is described, power savings illustrated, and two case studies presented.
Optimization Of Instrumentation And Air Blower Flow For Effective Control Of Bnr
Biological nutrient removal (BNR) requires precise control of air flow to aeration cells. Several pieces of equipment, controls, and ancillaries require integration to make an aeration system work. These equipment items are discussed along with the instruments, controls, and software required to affect an automated system.
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