Holford Underground Gas Storage - from FEED to handover - Axc.Nl

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TradingEnergy Balancing•Control system• Selects required mode• Selects required number of trains• Lines plant up (equalisation)• Starts plant up (at required time)• Shuts plant down• Responds to equipment failure• Responds to changing pressure drops• Starts and Stops Compressors• Responds to shortfalls in throughputCostain Energy & Processwww.costain.com
Vent Design• Visual impact limits vent to15m• Plot area limits sterile area to 50m radius• No continuous venting/purging, hence no flare required• All Relief Valves go to atmosphere• No closed drains system• No fire water system• Venting limited to:Depressurisation (EDP)Maintenance Venting• EDP in plant sectionsCostain Energy & Processwww.costain.com
Page 1 and 2: Holford Underground Gas Storage -fr
Page 3 and 4: The Project• Storage Volume• Pe
Page 5 and 6: Project TimelineCostain Energy & Pr
Page 7 and 8: The National Gas Network• Located
Page 9 and 10: Operational AdvantagesProcess Consi
Page 11 and 12: Gas DryingGlycol was chosen as the
Page 13: Base Control SystemControl System
Page 17 and 18: Commissioning• Water is present d
Page 19 and 20: Environment• The plant is located
Page 21 and 22: Team Working• Costain experience
Page 23: Holford Underground Gas Storage -fr

Holford Underground Gas Storage - from FEED to handover - Axc.Nl

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