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OTEC

Capturing energy using temperature gradients across water depths.

Ocean thermal energy conversion (OTEC) technology converts solar energy stored in the layers of the tropical and subtropical oceans. Thermal heat engines use the temperature difference between the sun-warmed surface water and cold water in the deep ocean. The temperature difference between surface waters and deeper water can reach over 25oC in summer months, although usually this temperature difference exists only over water with depths of 1,000 m or greater. Many different OTEC archetypes have been investigated, some on floating offshore platforms and some built onshore with pipelines to transport the water to and from the ocean. Each system uses one or a combination of thermodynamic processes to turn the temperature difference into mechanical energy. Both the open-cycle and closed-cycle plants use cold water pumped from the deep ocean to condense a working fluid. An ancillary benefit is that the condensate is freshwater that can have other uses such as agriculture and potable drinking water.

Photo: Okinawa Prefecture Industrial Policy Division

Marine Energy Documents Related to OTEC

Tethys Engineering is a knowledge hub that contains documents and resources about the technical aspects of marine energy development. The table below contains all of the documents in the Tethys Engineering Knowledge Base associated with OTEC.

Total: 542

Title Author Date Type of Content Technology Collection Method Engineering
Performance improvement of ocean thermal energy conversion organic Rankine cycle under temperature glide effect Zhang, J., Zhang, X., Zhang, Z. Journal Article OTEC Modeling Materials, Performance
Extracting energy from ocean thermal and salinity gradients to power unmanned underwater vehicles: State of the art, current limitations, and future outlook Jung, H., Subban, C., McTigue, J. Journal Article Salinity Gradient, OTEC
Conversion of a Redundant Drillship to a Floating OTEC Platform Brown, M., Brown, G. Conference Paper OTEC, Closed-Cycle Hybrid Devices, Hydrodynamics, Performance
Site Selection for Ocean Thermal Energy Conversion Plants (OTEC): A Case Study in Panama Lopez, G., de los Angeles Ortega Del Rosario, M., James, A. Journal Article OTEC
Investigation of the potential of R717 blends as working fluids in the organic Rankine cycle (ORC) for ocean thermal energy conversion (OTEC) Yang, M-H., Yeh, R-H. Journal Article OTEC, Closed-Cycle Performance
Investigation of the potential of R717 blends as working fluids in the organic Rankine cycle (ORC) for ocean thermal energy conversion (OTEC) Yang, M., Yeh, R-H. Journal Article OTEC Modeling Materials, Performance
An Assessment of the Financial Feasibility of an OTEC Ecopark: A Case Study at Cozumel Island Tobal-Cupul, J., Garduño-Ruiz, E., Gorr-Pozzi, E. Journal Article OTEC
Colombian Caribbean Bathymetry for an OTEC System Location Herrera, J., Hernández-Hamón, H., Fajardo, L. Journal Article OTEC Field Data, Modeling
Upscaling scenarios for ocean thermal energy conversion with technological learning in Indonesia and their global relevance Langer, J., Quist, J., Blok, K. Journal Article OTEC Modeling
Review of enhancement for ocean thermal energy conversion system Abbas, S., Alhassany, H., Vera, D. Journal Article OTEC, Closed-Cycle Lab Data, Modeling Hydrodynamics, Performance
A performance study of R717 and R22 as the working fluid for OTEC plant Chan, W., Chiong, M. Conference Paper OTEC, Closed-Cycle Modeling Materials, Performance
Is bigger always better? Designing economically feasible ocean thermal energy conversion systems using spatiotemporal resource data Langer, J., Ferriera, C., Quist, J. Journal Article OTEC Modeling Performance
Compression-assisted absorption refrigeration using ocean thermal energy Hu, Z., Wan, Y., Zhang, C. Journal Article OTEC Modeling Performance
A Combined Cooling and Power System Based on Guohai Cycle Zhang, Y., Bian, Y. Journal Article OTEC, Hybrid-Cycle Modeling Performance
Performance analysis of an Open Cycle OTEC power module on laboratory scale Patnaik, B., Mani, A., Dudhgaonkar, P. Conference Paper OTEC, Open-Cycle Lab Data Performance
Proposal of Performance Evaluation Method of Heat Exchanger for Ocean Thermal Energy Conversion Based on Thermodynamics Perspective Miyazaki, A., Yasunaga, T., Fontaine, K. Journal Article OTEC Modeling Performance
Heat Transfer Performance Test Results of A Plate Evaporator-Condenser for Hybrid Ocean Thermal Energy Conversion Miyazono, S., Yasunaga, T., Nakamura, T. Journal Article OTEC, Hybrid-Cycle Lab Data Performance
Realisation of a coastal zero-emission office building with the support of hybrid ocean thermal, floating photovoltaics, and tidal stream generators Zhou, S., Cao, S., Wang, S. Journal Article Current, Tidal, OTEC Modeling Hybrid Devices
Theoretical and experimental study on the performance of a high-efficiency thermodynamic cycle for ocean thermal energy conversion Peng, J., Ge, Y., Chen, F. Journal Article OTEC Modeling Performance
A Novel Ocean Thermal Energy Driven System for Sustainable Power and Fresh Water Supply Ma, Q., Zheng, Y., Lu, H. Journal Article OTEC Modeling Performance
Resource Potentials of the Marine Areas of Bangladesh Khan, S. Book Chapter Current, Wave, OTEC
A unique ocean and solar based multigenerational system with hydrogen production and thermal energy storage for Arctic communities Temiz, M., Dincer, I. Journal Article OTEC Modeling Hybrid Devices, Performance
Harnessing Ocean Energy from Coastal and Offshore Pakistan Amjad, S. Conference Paper Tidal, Wave, OTEC, Closed-Cycle
Development study of automatic control system for the demonstration plant of ocean thermal energy conversion (OTEC) using sequence controller Lim, S., Lee, H., Kim, H. Journal Article OTEC, Closed-Cycle Field Data, Modeling Control, Performance
Evaluation of hybrid ocean thermal energy conversion system plantwide performance Azam, K., Abidin, M., Husain, M. Conference Paper OTEC, Hybrid-Cycle Lab Data, Modeling Performance
Marine renewable energy devices and their control: An overview Ringwood, J. Journal Article Current, Wave, Salinity Gradient, OTEC
Optimal design of radial inflow turbine for ocean thermal energy conversion based on the installation angle of nozzle blade Chen, Y., Liu, Y., Liu, W. Journal Article OTEC Modeling Performance
Improvement of Ocean Thermal Energy Conversion (OTEC) Efficiency by Using Ammonia-Water Zeotropic Mixture Working Fluid Halimi, B., Generanta, I. Conference Paper OTEC, Hybrid-Cycle Modeling
Potential Ocean Thermal Energy Conversion in Indonesian Waters Territory Suprijo, T., Poerbo, P., Park, H. Journal Article OTEC Modeling
White Paper on Ocean Thermal Energy Conversion (OTEC) Ocean Energy Systems Report OTEC
An extensive thermo-economic evaluation and optimization of an integrated system empowered by solar-wind-ocean energy converter for electricity generation – Case study: Bandar Abas, Iran Assareh, E., Assareh, M., Alirahmi, S. Journal Article OTEC Hybrid Devices, Performance
Exergo-economic assessment of OTEC power generation Talluri, L., Manfrida, G., Ciappi, L. Conference Paper OTEC Performance
The Suitability of the Pacific Islands for Harnessing Ocean Thermal Energy and the Feasibility of OTEC Plants for Onshore or Offshore Processing Kim, H-J., Lee, H-S., Lim, S-T. Journal Article OTEC
Alternative Markets for Ocean Energy Ocean Energy Systems Report Current, Wave, OTEC
Research on Optimization and Verification of the Number of Stator Blades of kW Ammonia Working Medium Radial Flow Turbine in Ocean Thermal Energy Conversion Chen, Y., Liu, Y., Yang, W. Journal Article OTEC, Closed-Cycle Modeling Performance, Structural
Ocean Thermal Energy Conversion (OTEC) Heat Exchanger Development: 2020-2021 Makai Ocean Engineering Report OTEC Lab Data, Modeling Performance, Structural
Investigation of Self-Driven Profiler with Buoyancy Adjusting System towards Ocean Thermal Energy Xia, Q., Muhammad, G., Chen, B. Journal Article OTEC Field Data Performance
Indirect air CO2 capture and refinement based on OTEC seawater outgassing Straatman, P., van Sark, W. Journal Article OTEC, Open-Cycle
Evaluation of a novel ammonia-water based combined cooling, desalination and power system based on thermodynamic and exergoeconomic analyses Zhou, S., Liu, X., Zhang, K. Journal Article OTEC Modeling Hybrid Devices, Performance
State-of-the-art of renewable energy sources used in water desalination: Present and future prospects Bundschuh, J., Kaczmarczyk, M., Ghaffour, N. Journal Article Salinity Gradient, OTEC
Offshore Renewables: An Action Agenda for Deployment IRENA Report Current, Wave, Salinity Gradient, OTEC
Simplified Formulation of Coupled System Between Moored Ship and Elastic Pipe for OTEC Plantship Hisamatsu, R., Utsunomiya, T. Conference Paper OTEC, Closed-Cycle Modeling Structural
Assessing biofouling in Ocean Thermal Energy Conversion (OTEC) power plant – A review Abidin, M., Rodhi, M., Hamzah, F. Conference Paper OTEC, Hybrid-Cycle Lab Data Structural
Stability Analysis of Cold-water Pipe Under Different Inlet Flow Field Models Ma, Y., You, Y., Feng, A. Conference Paper OTEC Modeling Structural
Ocean Power Hossain, E., Petrovic, S. Book Chapter Current, Tidal, Wave, OTEC
Plant siting and economic potential of ocean thermal energy conversion in Indonesia a novel GIS-based methodology Langer, J., Cahyaningwidi, A., Chalkiadakis, C. Journal Article OTEC
Off-design performance of closed OTEC cycles for power generation Giostri, A., Romei, A., Binotti, M. Journal Article OTEC, Closed-Cycle Modeling Performance
International Workshop on Marine Energy Data Sharing: Workshop Report Copping, A., Weers, J., Ruehl, K. Workshop Article Current, Wave, Salinity Gradient, OTEC
Linear vs non-linear analysis on self-induced vibration of OTEC cold water pipe due to internal flow Adiputra, R., Utsunomiya, T. Journal Article OTEC Modeling
Sensitivity Analysis of OTEC-CC-MX-1 kWe Plant Prototype Tobal-Cupul, J., Cerezo-Acevedo, E., Arriola-Gil, Y. Journal Article OTEC Modeling Performance
Displaying 201 - 250 of 542 results