1. Background 2. Technical Limitations 3. OTEC and the Environment 4. Engineering Challenges 5. Open Cycle OTEC 6. The 210 kW OC-OTEC Experimental Apparatus 7. Design of a Small Land-Based OC-OTEC Plant 8. Closed Cycle OTEC 9. Design of a Pre-Commercial Floating Hybrid-OTEC Plant 10. Potential Sites 11. Economic Considerations and Market Potential 12. Hydrogen Production 13. Externalities Gloss...

This article reports the off-design performance analysis of a closed-cycle ocean thermal energy conversion (OTEC) system when a solar thermal collector is integrated as an add-on preheater or superheater. Design-point analysis of a simple OTEC system was numerically conducted to generate a gross power of 100 kW, representing a base OTEC system. In order to improve the power output of the OTEC s...

Worldwide power resources that could be extracted from Ocean Thermal Energy Conversion (OTEC) plants are estimated with a simple one-dimensional time-domain model of the thermal structure of the ocean. Recently published steady-state results are extended by partitioning the potential OTEC production region in one-degree-by-one-degree “squares” and by allowing the operational adjustment of OTEC ...

Previous investigations of the large-scale deployment of Ocean Thermal Energy Conversions (OTEC) systems are extended by allowing some atmospheric feedback in an ocean general circulation model. A modified ocean-atmosphere thermal boundary condition is used where relaxation corresponds to atmospheric longwave radiation to space, and an additional term expresses horizontal atmospheric transport....

Worldwide information indicates that although there are sufficient petroleum resources to meet demand for about 50 years, production is peaking and we will face a steadily diminishing petroleum supply. This situation justifies re-evaluating OTEC for the production of electricity, desalinated water and energy intensive products. It is postulated that the US should begin to implement the first ge...

Absln~--To minimize cold water pipe lengths, the most favorable land or fixed platform based Ocean Thermal Energy Conversions (OTEC) sites have subbottom slopes greater than 5 °. Observations at OTEC sites in Hawaii indicate that turbidity currents of an impulsive or episodic nature can occur with frontal speeds of several meters'per second. Such speeds and the attendant potential for sediment ...

Abstract Ocean Thermal Energy Conversion (OTEC) is a renewable energy source in which produced by converting the heat stored sea or ocean thermal into valuable work, based on temperature difference between warm surface seawater and cold deep seawater. One of OTEC system requirements to have at minimum 20 °C within depth 1000 m below level. Recognizing importance optimum water temperature, sever...

Isu energi terbarukan merupakan hal yang sering diperbincangkan, terutama karena cadangan minyak bumi semakin menipis, pasokan listrik sangat diperlukan untuk pembangunan infrastruktur berkelanjutan. Salah satu sumber adalah marine thermal energy conversion system (OTEC). Energi pada waktunya akan menjadi andalan nasional dan dunia dalam lima puluh tahun terjadi krisis energi. Sumber OTEC muncu...

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