Stork webinar | Voordelen van een deaerator retrofit
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Veel bedrijven hebben tray-type ontgassers in bedrijf en weten niet dat de relatief eenvoudige ombouw naar spray-type ontgassers tot enorme besparingen kan leiden! Het ombouwen van een tray-type naar een spray-type ontgasser resulteert in betere prestaties, lagere TCO (geen onderhoudsvereisten) en verbeterde duurzaamheid. Het leidt tot een lager energieverbruik, minder stoomverlies en de overbodigheid van zuurstofafvangers, wat milieuvervuiling tegen gaat. Dit ombouwproces is minder ingewikkeld en heeft een kortere terugverdientijd dan je zou denken. In dit webinar bespreken Joyce Logman en Alex Heino de voordelen van de ontgasser ombouw op de bovengenoemde onderdelen. Zij leggen uit welk effect de overstap van tray-type naar spray-type heeft op duurzaamheid en potentiële kostenbesparingen. Daarnaast wordt er besproken hoe een retrofit er grofweg uitziet, van engineering tot inbedrijfstelling.
Stork webinar | Voordelen van een deaerator retrofit
- 1. DEAERATOR RETROFIT Advantages of converting tray-type deaerators to spray-type deaerators The webinar starts at 12.00h. CET You can ask questions through the Q&A button in the zoom-menu. During the webinar all participants are on ‘mute’. Webinar
- 2. MAINTAINING A BETTER WORLD
- 4. MAINTAINING A BETTER WORLD INTRODUCTION PRESENTERS MAINTAINING A BETTER WORLD Joyce Logman Alex Heino
- 5. MAINTAINING A BETTER WORLD INDEX DEAERATOR • Deaerator Principle • Tray-type vs. Spray-type • Why Retrofitting • Procedure • Example Case • Cost of Ownership • Economical benefits • Environmental benefits
- 7. MAINTAINING A BETTER WORLD DEAERATOR PRINCIPLE STEAM CHARGING RAKE • Uniform Steam Distribution • Condensing steam as energy source SPRAYER • Condensate distribution BAFFLE PLATES • Providing Flow Regime STORAGE VESSEL • Storage Capacity DEAERATION • Sprayer and Vessel
- 8. MAINTAINING A BETTER WORLD DEAERATOR PRINCIPLE REMOVE GASSES • 𝑂2 Corrosion (oxidation of metal) • 𝐶𝑂2 Corrosion (dissolving of metal) • 𝑁2, other FEED WATER STORAGE Capacity Deaerator is +/- 10-20% of nominal steam production PRE-HEATING OF FEEDWATER TO BOILER +/-10-20 °C Condensate, 90 °C Feed water +/- 105 °C ENERGY BUFFER
- 9. MAINTAINING A BETTER WORLD TRAY-TYPE VS. SPRAY-TYPE • Condensate Distributor: Sprayer • Steam Distributor: Steam Rake • Vent next to Sprayer • Condensate Distributor: Trays • Steam Distributor nearby Trays • Vent on Dome
- 10. > POLL QUESTION
- 11. MAINTAINING A BETTER WORLD WHY RETROFITTING 1. Higher and constant performance: ~7 ppb 2. No oxygen scavengers needed 3. Less operational costs 4. +/- 90% reduction of steam loss 5. Less noise pollution: >85 dB naar <80 dB
- 12. MAINTAINING A BETTER WORLD WHY RETROFITTING 6. Improved capacity 7. Turndown ratio >1:10 8. Simplified construction 9. Less parts less maintenance
- 13. MAINTAINING A BETTER WORLD PROCEDURE OF RETROFIT INSPECTION BASIC ENGINEERING DETAIL ENGINEERING MANUFACTURING SITE MODIFICATIONS START-UP
- 14. MAINTAINING A BETTER WORLD EXAMPLE CASE SALT MINE GERMANY • Increased capacity • Reduced steam loss, saving €68.800.-/year • Life expectance = 30 years • Client saves €2.064.000.-
- 15. MAINTAINING A BETTER WORLD BUSINESS CASE PAYBACK TIME TRAY-TYPE SPRAY-TYPE Investment Av. Price retrofit €120.000 Installation €80.000 Retrofit investment €200.000 Annual operational costs Maintenance €30.000 €10.000 Steam loss €40.000 €5.600 Chemicals €67.200 € - Total €137.200 €15.600 Annual savings €121.600 Payback Time 1,65 year ASSUMPTIONS: • Life expectance Stork deaerator: 30 years • Operational hours: 8000 h/y • Capacity: 286 t/h • 1.2 L/h scavenger • 1.85 kg /𝑛𝑚3 natural gas • 1500 𝑚3 /y natural gas per household PRICES: • €10.-/t steam • €7.-/L scavenger 𝑂2 𝐶𝑂2
- 16. MAINTAINING A BETTER WORLD ENVIRONMENTAL BENEFITS • Example case: • Steam savings when retrofitted: €40.000 - €5.600= €34.400 • €34.400 = 3.440 ton steam = 140 households = 390 ton 𝑪𝑶𝟐 SAVED per year
- 17. MAINTAINING A BETTER WORLD IMPROVE DEAERATOR PERFORMANCE WRAP UP! • Improve deaerator performance by converting to spray-type deaerator • Conversion will reduce costs & environmental harm significantly due to: • Removing of oxygen scavenger • Reducing steam losses • Payback time often within 3 years • Conversion in a relatively short time
- 18. > QUESTIONS ?
- 19. RECORDED WEBINARS > www.stork.com/recorded-webinars NEXT WEBINARS (DUTCH): THANK YOU FOR YOUR ATTENDANCE Compliance & fugitive emissions 5 JUNE Lifecycle Asset Management 3 JULY CONTACT US: > [email protected] www.stork.com/podcast
Editor's Notes
- #2: [Ferry] Introductie t/m de spelers....Bram als nieuws lezer...
- #14: Basic Eng: process study Detail Eng: site visit and detail design package of internals and modifications on the vessel Manufacturing: production/delivery sprayer + possibly internals by Stork Site modification: depending on location, by stork or local mechanical contractor. Inspection visit from Stork (for warranty reasons) Start up: to be further agreed, depending on customer wishes
- #20: Ferry: 21 juni: Kip of ei - Wat zijn de ontwikkelingen in NL waterstofland (en wat kan dat betekenen voor jou als asset owner) 23 augustus: Waterstof competenties 20 September: Klaar voor waterstof