186 research outputs found

    Reflections of an Alumnus Author: Reading Books to Read Ourselves

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    Examination of Methods of Dry Gas Seal Supply, Regulation, and Monitoring

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    TutorialsCompressor Dry Gas Seal Failure is a common issue that affects Turbomachinery train availability. Since most turbomachinery trains are un-spared critical assets, unscheduled shutdowns have a major impact to the operating facility. As operators look to extend equipment run time, the quality and delivery of the primary seal gas supplied to the dry gas seal is vital to the long term operation. In case of a failure, automated trips can be applied to mitigate catastrophic failures but in many cases the machinery engineer needs to make an operations decision due to changing seal performance and needs to answer the following questions: • Is gas delivered to the seal at required volume and quality at all operating conditions? • How is the seal monitored? • What is the data telling me? • What is causing the abnormal indication? • What action should be taken? This tutorial examines the two main philosophies for delivering seal gas, comparing them with two calculated examples before describing a recommend primary vent monitoring setup and the associated instrumentation. The tutorial concludes with several examples based off real world failures to further illustrate the monitoring and diagnostic abilities of the dry gas seal system

    Explorations, Vol. 5, No. 1

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    Articles include: Cover: What Have We Done with Tomorrow? by Leslie C. Hyde, UMCES Extension Agent for Knox-Lincoln Counties. Editorial Reflections, Carole J. Bombard UMCES: an overview Conversation with the Director: Assistant Vice-President Judith Bailey Reaching Out for Teen Awareness, by Theresa M. Ferrari Profile of a Harbormaster, by Carole J. Bombard Minding Maine’s Business, by Mary S. Bowie Family Resource Management: Learning to ease the burden, by Olive Dubord and Doris Cushman Breaking Free and Taking Control: Helen Sawyer’s Story, by Doris Manley Partnership in Conservation: The Josephine Newman Sanctuary, by Nancy Coverstone The Mount Desert Island Health Promotion Project, by Ron Beard Dynamics of Weed Control in Agriculture, by Leigh Morrow From Generation to Generation: An Extension Homemaker Family, by Nadine B. Reimer ICLAD: The Institute for Community Leadership and Development, by Jim Killacky and Deb Burwell Exploding the Cinderella Syndrome: Strengthening Stepfamilies, by Wendy Pollock Integrated Pest Management: Bringing it all together, by Glen Koehler and Jim Dill Addressing the Issues, by Patricia M. Pierson Anti-Bruise: What’s It All About? Maine Potato Harvest Anti-Bruise Program, by Neal D. Hallee H.O.P.E. Addresses Teenage Pregnancy, by Jane M. Kelly Saving Money and the Environment, by Vaughn H. Holyoke Reservoir Tillage in Nonirrigated Potato Production, by Leigh Morrow Managing Pesticide Drift, by James D. Dwyer, Leigh S. Morrow and James F. Dill The St. George River Project — what have we done with tomorrow? Putting Research to Work, by Stephen Belyea The Best Maine Blue: Fresh Pack Blueberries, by Tom DeGomez Maine’s Green Sea Urchin, by Benjamin A. Baxter Interfaces and Cooperation: Wildlife and Fisheries Sampler, by Catherine A. Elliott Extension Responds to the Salmonella Scare, by Nellie Hedstrom and Mahmoud El-Begearm
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