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: 520

Title Author Date Type of Content Technology Collection Method Engineering
Finite-Time Thermodynamic Model for Evaluating Heat Engines in Ocean Thermal Energy Conversion Yasunaga, T., Ikegami, Y. Journal Article OTEC Modeling Performance, Structural
Pan American Marine Energy Conference 2020 Book of Abstracts Rojas M., J., Meza, C. Conference Paper Current, Wave, OTEC
Survey and Assessment of the Ocean Renewable Energy Resources in the US Gulf of Mexico Musial, W., Tegen, S., Driscoll, F. Report Current, Ocean Current, Tidal, Wave, OTEC
Ocean thermal energy utilization process in underwater vehicles: Modelling, temperature boundary analysis, and sea trail Zhang, H., Liu, C., Yang, Y. Journal Article OTEC Field Data, Modeling
Mining of methane from deposits subaquatic gas hydrates using OTEС Klymenko, V., Denysov, Y., Skrypnyk, O. Conference Paper OTEC Modeling Performance
Dynamic Simulation of System Performance Change by PID Automatic Control of Ocean Thermal Energy Conversion Seungtaek, L., Hoseang, L., Hyeonju, K. Journal Article OTEC, Closed-Cycle Modeling Control
Report of Training on SATREPS-OTEC Project UTM Ocean Thermal Energy Centre Report OTEC, Hybrid-Cycle Full Scale Performance
OTEC Maximum Net Power Output Using Carnot Cycle and Application to Simplify Heat Exchanger Selection Fontaine, K., Yasunga, T., Ikegami, Y. Journal Article OTEC, Closed-Cycle Modeling Performance, Structural
Stability based approach to design cold-water pipe (CWP) for ocean thermal energy conversion (OTEC) Adiputra, R., Utsunomiya, T. Journal Article OTEC, Open-Cycle Modeling Materials, Structural
Ocean Renewable Energy Potential, Technology, and Deployments: A Case Study of Brazil Shadman, M., Silva, C., Faller, D. Journal Article Current, Tidal, Ocean Current, Wave, Salinity Gradient, OTEC Modeling Performance
Parameter Analysis on OTEC using Hybrid Cycle Ikegami, Y., Yasunaga, T., Okuno, T. Journal Article OTEC, Hybrid-Cycle Performance
Characteristics of pulsatile flow with the reverse flow in the grooved channel Pan, J., Bian, Y., Arima, H. Journal Article OTEC Lab Data Materials, Performance
Energy, exergy and economic analyses of a novel hybrid ocean thermal energy conversion system for clean power production Yilmaz, F. Journal Article OTEC, Hybrid-Cycle Modeling Hybrid Devices, Performance
Theoretical and experimental research on the thermal performance of ocean thermal energy conversion system using the rankine cycle mode Chen, F., Liu, L., Peng, J. Journal Article OTEC, Closed-Cycle Lab Data, Modeling Performance
Techno-economic analysis of multipurpose OTEC power plants Barberis, S., Giugno, A., Sorzana, G. Journal Article OTEC Modeling Performance
Development of PRIMRE, the Portal and Repository for Information on Marine Renewable Energy Ruehl, K., Driscoll, F., Copping, A. Conference Paper Current, Wave, Salinity Gradient, OTEC
Assessment of extreme and metocean conditions in the Maldives for OTEC applications Rinaldi, G., Crossley, G., Mackay, E. Journal Article OTEC Modeling
Efficiency analysis and experimental validation of the ocean thermal energy conversion with phase change material for underwater vehicle Wang, G., Yang, Y., Wang, S. Journal Article OTEC Lab Data, Modeling Control, Performance, Structural
Pumping power minimization of an evaporator in ocean thermal energy conversion system based on constructal theory Wu, Z. , Feng, H. , Chen, L. Journal Article OTEC, Closed-Cycle Modeling Performance
What about Marine Renewable Energies in Spain? Esteban, M., Espada, J., Ortega, J. Journal Article Current, Wave, Salinity Gradient, OTEC
Decision framework for ocean thermal energy plant site selection from a sustainability perspective: The case of China Zhang, J., Xu, C., Song, Z. Journal Article OTEC
Calculation of Power Pumps on OTEC Power Plant Ocean (Ocean Thermal Energy Conversion) Hendrawan, A. Conference Paper OTEC, Closed-Cycle Modeling Performance
On the Marine Energy Resources of Mexico Hernández-Fontes, J., Felix, A., Mendoza, E. Journal Article Current, Wave, Salinity Gradient, OTEC Field Data, Modeling Hydrodynamics
IEC Technical Specification 62600-20:2019 - Part 20: Design and analysis of an Ocean Thermal Energy Conversion (OTEC) plant - General guidance International Electrotechnical Commission (IEC) Guidance OTEC
Design of a Multi-Source Offshore Renewable Energy Platform Engelmann, G. , Robinson, R. Conference Paper OTEC
Ocean Thermal Energy Conversion Prospectivity in Banda Sea: Application and Development Ustiawan, A., Yogatama, N. Conference Paper OTEC, Hybrid-Cycle
A study of OTEC application on deep-sea FPSOs Song, Y. Journal Article OTEC, Closed-Cycle, Open-Cycle Performance
Feasibility of seawater heat extraction from sub-Arctic coastal water; a case study of Onundarfjordur, northwest Iceland Eskafi, M., Ásmundsson, A., Jónsson, S. Journal Article OTEC
Thermodynamic and economic analysis of a hybrid ocean thermal energy conversion/photovoltaic system with hydrogen-based energy storage system Khosravi, A., Syri, S., Assad, M. Journal Article OTEC Hybrid Devices
Techno-economic analysis of closed OTEC cycles for power generation Bernardoni, C., Binotti, M., Giostri, A. Journal Article OTEC Modeling Performance
Preliminary design of a 100 MW-net ocean thermal energy conversion (OTEC) power plant study case: Mentawai island, Indonesia Adiputra, R., Utsunomiya, T., Koto, J. Journal Article OTEC Modeling Control, Structural
Ocean Energy and Its Harvesting Patil, A. Conference Paper Current, Wave, OTEC
Ocean Thermal Energy Conversion (OTEC) Masutani, S., Takahashi, P. Journal Article OTEC, Closed-Cycle, Open-Cycle, Hybrid-Cycle Performance
Modelling and experimentation of heat exchangers for Ocean Thermal Energy Conversion during transient operation Dijoux, A., Sinama, F., Marc, O. Journal Article OTEC, Closed-Cycle Field Data, Modeling Performance
Marine Renewable Energy in Canada: A Century of Consideration and Challenges Daborn, G., Viehman, H., Redden, A. Book Chapter Current, Wave, Salinity Gradient, OTEC
An innovative Organic Rankine Cycle (ORC) based Ocean Thermal Energy Conversion (OTEC) system with performance simulation and multi-objective optimization Wang, M., Jing, R., Zhang, H. Journal Article OTEC, Closed-Cycle Lab Data, Modeling Control, Performance
A novel modelling approach to the identification of optimum sites for the placement of ocean thermal energy conversion (OTEC) power plant: application to the tropical island climate of Mauritius Doorga, J., Gooroochurn, O., Motah, B. Journal Article OTEC Modeling Control
Development of an auxiliary thermal energy storage type heat exchanger for solar-heat boost type OTEC Arima, H. Journal Article OTEC, Open-Cycle Lab Data Control, Performance
Difference between Experimental and Theoretical Pulsatile Flow in Grooved Channel Zhang, F., Bian, Y., Arima, H. Journal Article OTEC Lab Data Performance
Ocean Thermal Energy Conversion in Indonesia, Malaysia and Philippines Koto, J., Arief, D., Tasri, A. Journal Article OTEC
Ocean thermal energy conversion and open ocean mariculture: The prospect of Mainland-Taiwan collaborative research and development Liu, C. Journal Article OTEC, Closed-Cycle, Open-Cycle Modeling
Negatice-CO2-emissions ocean thermal energy conversion Rau, G., Baird, J. Journal Article OTEC, Closed-Cycle Modeling
Preliminary Design of Ocean Thermal Energy Conversion (OTEC) Axial Turbine for Laboratory Scale SyarifArief, I., Aldara, D. Conference Paper OTEC Modeling Performance, Power Take Off, Structural
Review of the applied mechanical problems in ocean thermal energy conversion Zhang, W., Li, Y., Wu, X. Journal Article OTEC Performance, Structural
Optimization Study on Floating Structure and Risers Design for a 100 MW-Net Ocean Thermal Energy Conversion (OTEC) Power Plant Adiputra, R., Utsunomiya, T. Conference Paper OTEC Modeling Performance, Structural
The Experimental Study of Rankine Cycle in Ocean Thermal Energy Conversion Peng, J., Wu, H., Ge, Y. Journal Article OTEC, Closed-Cycle Modeling Control, Performance
Renewable Energy from Oceans Narula, K. Book Chapter Current, Tidal, Wave, OTEC
Ocean Thermal Energy Conversion (OTEC) Heat Exchanger Development: 2016-2018 Report Makai Ocean Engineering Report OTEC Lab Data, Scale Device Performance, Structural
Micropiles for Anchoring Ocean Renewable Energy Generation Devices Ahsanuzzaman, M., Gabr, M., Borden, R. Conference Paper Current, Wave, OTEC Field Data, Full Scale Materials, Performance, Substructure
Thermodynamic performance assessment of ocean thermal energy conversion based hydrogen production and liquefaction process Yilmaz, F., Ozturk, M., Selbas, R. Journal Article OTEC Hybrid Devices
Displaying 301 - 350 of 520 results