Chemical Processing - December 2007 - (Page 27)

Material Handling Systems changes in temperature, pressure and flow. Then, data commonly produced to meet a plant’s environmental, health and safety requirements are compared to the customized model for a picture of how well that machine is actually performing — to determine efficiency loss versus like-new or best case operation. While endusers may be aware that the performance of a piece of equipment is below normal, the extent of the loss can be a shock, and they rarely know what’s causing the degradation. The most important element of this performance monitoring package is the expertise required to build the thermodynamic model and then distill and validate the large amount of production data from critical pieces of plant equipment. Most plants lack such capabilities and so rely on a third party that has performance specialists. By using the model to analyze this information and formulate actionable recommendations, these experts are able to obtain information about lagging performance that’s never before been available. For example, using the thermodynamic model of a multi-stage compressor (Figure 1), specialists can determine the current performance of the overall compressor, on each stage of the compressor and, if there are interstage coolers, the performance of those coolers as well. In addition, they can define the negative impact of each one of those different sections of the compressor on the machine’s overall performance and show what it’s costing to drive the compressor or how the compressor’s throughput has been reduced (Figure 2). Analysis based on thermodynamic modeling also enables the experts to predict with reasonable accuracy when a piece of equipment should be overhauled. A machine’s history of degradation offers insights on Container Discharging Drum Discharging Bag Filling Lift & Dump Container Discharging Lift & Dump Drum Discharging Bag Discharging Call us: 800.836.7068 www.materialtransfer.com PROTECT PUMPS • • • • Dry Running Cavitation Bearing Failure Overload • Best Sensitivity COMPACT EASY MOUNTING • Starter Door • Panel • Relay Outputs MODEL PMP-25 • Adjustable Delay Timers 4-20 MILLIAMP ANALOG OUTPUT UNIQUE RANGE FINDER SENSOR • Works on Wide Range of Motors • Simplifies Installation • Raceway • Wall >> Assessing performance TRUE POWER LOAD DISPLAY TWO ADJUSTABLE SET POINTS CALL NOW FOR YOUR FREE 30-DAY TRIAL 888-600-3247 Figure 2. Software calculates compressor performance, providing insights for when maintenance should be scheduled. www.chemicalprocessing.com WWW.LOADCONTROLS.COM http://www.materialtransfer.com http://www.materialtransfer.com http://WWW.LOADCONTROLS.COM http://www.chemicalprocessing.com

Table of Contents Feed for the Digital Edition of Chemical Processing - December 2007

Chemical Processing - December 2007 Contents From the Editor ChemicalProcessing.com Field Notes In Process Energy Saver Compliance Advisor 2007 Vaaler Award - The Quest Ends Take Equipment Diagnostics to a New Level Better Bellows Boosts Blending Process Puzzler Plant InSites Equipment & Services Product Spotlight/Classifieds Ad Index End Point

Chemical Processing - December 2007

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