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The prospect of harnessing tidal power at the Marina Barrage

Project’s Day 2008. The prospect of harnessing tidal power at the Marina Barrage. Wilford Ng (4n18) Leong Weiqi (4n08) Wu Zhaoxing (4n19) Lam Chun Wai (4n07). View. Contents. Introduction Rationale Scope of Research Preliminary Literature Review Research Questions Research Methodology

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The prospect of harnessing tidal power at the Marina Barrage

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  1. Project’s Day 2008 The prospect of harnessing tidal power at the Marina Barrage Wilford Ng (4n18) Leong Weiqi (4n08) Wu Zhaoxing (4n19) Lam Chun Wai (4n07)

  2. View

  3. Contents • Introduction • Rationale • Scope of Research • Preliminary Literature Review • Research Questions • Research Methodology • Timeline • Limitations • Acknowledgements

  4. Introduction • With the Barrage, the Marina Basin will turn into a body of freshwater through natural flushing • Rain water from an area of 10,000 ha will flow into the reservoir • Its construction begun in early 2005 and consists of nine 26.8m hydraulically operated steel crest gates spanned across the Marina Channel • 3 main benefits: • Water Supply, • Flood Control • New Lifestyle Attraction (e.g. international boat racing, sailing, water skiing and wind surfing)

  5. Rationale • Part of our competition entry • Singapore Junior Water Prize Competition • Keen interest in the applications of tidal power • Mechanics and physics of a tidal barrier • Arguably Singapore’s only realistic hope of an alternative power source • Our part in contributing to a real need in Singapore

  6. Scope of Research • Feasibility Study • Preliminary study undertaken to determine and document a project's viability • Results of study are used to make a decision whether to proceed or table the project • If findings lead to an approval, it will — before the real work of the proposed project starts — be used to ascertain the likelihood of the project's success • Analysis of possible alternative solutions to a problem and a recommendation on the best alternative • Close evaluation of the progress of Marina Bay • Tight collaboration with an existing contractor in charge of the construction of the Barrage

  7. Preliminary Review • The Barrage consists of nine crest gates (each 28m tall) to block out the tides • Several large capacity low head propeller pumps are installed in the barrage capable of pumping out excess water • The contract for the construction of the Marina Barrage has been awarded to Koh Brothers Building and Civil Engineering Contractor Pte Ltd at S$226 million • The construction of the project started in early 2005 and is scheduled for completion by early 2008

  8. Preliminary Review cont’d • Normal situations • Under normal situations, the crest gates remain closed to isolate the reservoir from the ocean • Low tide • During extreme storm events (when tide is low), they work in tandem to release excess flow from the marina • High tide • an enormous pumping station capable of pumping up to 6.3 billion gallons per day (280 cubic meters per second) will operate • Regardless of storm flows and tide levels, the barrage and pumping station will alternate to provide stable water levels in the reservoir

  9. Preliminary Review cont’d • The new Marina Reservoir will add to the local water supply and increase the water catchment from half to two-thirds of Singapore • Two-story visitor center complete with a circular glass theater • State-of-the-art visitor center will showcase Singapore’s significant environmental accomplishments, • Marina Barrage Park offering films, exhibits, and even refreshments while taking dramatic views of the facility

  10. Research Questions 1. How will the added tidal engine turbines benefit the entire operation of the Marina Barrage? • To what extent is the cost-effectiveness of the facilities for tidal power justified? 3. How do we ensure our evaluations of tidal power are objective and accountable?

  11. Research Methodology • Preliminary review of the existing facilities at the Marina Barrage • In-depth research to determine the detailed technicalities of tidal stream systems worldwide • Interview with Koh Brothers Development Pte Ltd to contextualize situation at Marina Barrage • Information triangulated from case studies with formal interview and PUB’s findings • Constant collaboration with PUB and Koh Brothers leading up to a comprehensive report

  12. Timeline

  13. Limitations • Zero funding presents a big challenge in conducting prior tests • Does not factor in regional ocean currents and monsoons that could alter the outcome of the study • Unable to provide accurate architectural insights to the proposed stream system

  14. Acknowledgements • Our mentor for her invaluable guidance • Koh Brothers Pte Ltd, for giving us vital technical expertise • PUB, for taking the time to answer our queries • Ngee Ann Polytechnic, for enlightening us with regards to the Singapore Junior Water Prize Competition • Everyone else who helped us in one way or another

  15. References • http://www.pub.gov.sg/Marina/about.htm • http://www.cdm.com/NR/rdonlyres/4379FE62-034B-4F05-8651-2F19F7D588C9/0/CDMNewsSingaporeMarinaBarrage.pdf • http://sg.pagenation.com/sin/Marina%20Barrage_103.873_1.2803.map

  16. Q&A END Thank you.

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