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Ocean Thermal Energy Conversion Processes for Efficient Power Generation

This study delves into Ocean Thermal Energy Conversion cycles and design impact, focusing on efficiency improvements and working fluid selections like ammonia-water mixtures. It examines the potential of OTEC systems in integrating with solar energy and desalination for enhanced energy sustainability.

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Ocean Thermal Energy Conversion Processes for Efficient Power Generation

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  1. Ocean Thermal Energy Conversion activities at Process & Energy Carlos Infante Ferreira TU Delft

  2. Faculty 3mE

  3. Department Process & Energy

  4. Efficiency of reversible thermodynamic cycles Hot reservoir Hot reservoir Hot reservoir Power cycle Heat pump Refrigeration cycle Cold reservoir Cold reservoir Cold reservoir

  5. Efficiency of power cycles

  6. Mean annual temperature difference between 20 and 1000 m

  7. Efficiency of OTEC cycle & effect of heat exchanger design

  8. Finite flow of reservoir fluids Hot reservoir Power cycle Cold reservoir

  9. Efficiency of OTEC cycle & effect of heat exchanger design

  10. Effect of working fluid selection Pure fluid: ammonia Mixture: ammonia-water 96%

  11. Effect of working fluid selection / cycle design Pure fluid: ORC Mixture: Kalina cycle

  12. Effect of cycle design: Multistage vs Kalina cycles Courtesy: Mathijs Vonk

  13. Efficiency of OTEC cycle & effect of heat exchanger design Evaporator Hot water Condenser Cold water

  14. Heat exchanger design Working fluid Water Courtesy: Menno Nuijten

  15. Heat exchanger modelling for optimization purposes Absorber Desorber Courtesy: Joost Kirkenier

  16. Retail electricity price in Caribbean countries (€/kWh)

  17. Economic feasibility Courtesy: Joost Kirkenier

  18. Integration with solar energy, air conditioning and sea water desalination

  19. OTEC system challenges / conclusion

  20. Ocean Thermal Energy Conversion activities at Process & Energy Thank you for your attention!

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