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

Affiliated Marine Energy Engineering Documents

Total results: 426
Title Author Date Type of Content Technology Collection Method Engineering
Experimental study of a miniature organic Rankine cycle unit using ocean thermal energy Hu, Z., Fan, C., Gao, W. Journal Article OTEC, Closed-Cycle Modeling, Scale Device Performance, Power Take Off
Experimental study of the absorption refrigeration using ocean thermal energy and its under-lying prospects Hu, Z., Deng, Z., Gao, W. Journal Article OTEC Lab Data Performance, Structural
Experimental study on dynamic stability of vertical cantilevered pipe aspirating fluid immersed in various water depths Ma, Y., You, Y., Zhang, J. Journal Article OTEC Lab Data, Modeling, Test Center Hydrodynamics, Performance, Structural
Explore the influence of intermediate extraction on thermodynamic performance and economy of Uehara cycle Zhu, K., Bian, Y., Liu, Y. Journal Article OTEC, Closed-Cycle Modeling 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
Falling jet flash evaporators for open cycle ocean thermal energy conversion Wassel, A. , Ghiaasiaan, S. Journal Article OTEC, Open-Cycle Performance
Feasibility of Ocean-Based Renewable Energy in the Gulf of Mexico Musial, W. Journal Article Current, Tidal, Ocean Current, Wave, OTEC
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
Feasibility study of a combined Ocean Thermal Energy Conversion method in South Korea Jung, H., Hwang, J. Journal Article OTEC, Closed-Cycle Modeling Performance
Finite Element Modelling of Ocean Thermal Energy Conversion (OTEC) Cold Water Pipe (CWP) Adiputra, R., Utsunomiya, T. Conference Paper OTEC Modeling Structural
Finite-Time Thermodynamic Model for Evaluating Heat Engines in Ocean Thermal Energy Conversion Yasunaga, T., Ikegami, Y. Journal Article OTEC Modeling Performance, Structural
Fostering a blue economy: Offshore renewable energy IRENA Report Current, Tidal, Wave, Salinity Gradient, OTEC
Framework for Identifying Cybersecurity Vulnerability and Determining Risk for Marine Renewable Energy Systems de Peralta, F., Gorton, A., Watson, M. Report Current, Wave, Salinity Gradient, OTEC
General Criteria for Optimal Site Selection for the Installation of Ocean Thermal Energy Conversion (OTEC) Plants in the Mexican Pacific Huante, A., Cueto, Y., Ruiz, E. Book Chapter OTEC
Geo-Ocean Thermal Energy Conversion (GeOTEC) power cycle/plant Idrus, N., Musa, M., Yahya, W. Journal Article OTEC, Closed-Cycle Modeling Hybrid Devices
Growth of ocean thermal energy conversion resources under greenhouse warming regulated by oceanic eddies Du, T., Jing, Z., Wu, L. Journal Article OTEC Modeling
Harnessing Ocean Energy from Coastal and Offshore Pakistan Amjad, S. Conference Paper Tidal, Wave, OTEC, Closed-Cycle
Harnessing Ocean Thermal Energy from Offshore Locations in Pakistan Using an Organic Rankine Cycle Haroon, M., Ayub, A., Sheikh, N. Conference Paper OTEC, Closed-Cycle Performance
Harvesting Energy from Ocean: Technologies and Perspectives Khan, M., Khan, H., Aziz, M. Journal Article Current, Tidal, Wave, Salinity Gradient, OTEC Performance
Heat transfer mechanism of cold-water pipe in ocean thermal energy conversion system Mao, L., Wei, C., Zeng, S. 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
Hydrodynamic Load Effect on Composite Polymer Cold-Water Pipe Joint in Ocean Thermal Energy Conversion Arief, D., Wirjosentono, B., Koto, J. Journal Article OTEC, Closed-Cycle Modeling Hydrodynamics, Structural
Hydrogen generation by OTEC electrolysis, and economical energy transfer to world markets via ammonia and methanol Avery, W., Richards, D., Dugger, G. Journal Article OTEC Grid Integration
Hydrogen production through an ocean thermal energy conversion system operating at an optimum temperature drop Kazim, A. Journal Article OTEC, Closed-Cycle Modeling Materials, Performance
Identification of nonparametric thermodynamic model and optimization of ocean thermal energy conversion radial inflow turbine Liu, Y., Xue, Y., Chen, Y. Journal Article OTEC Performance, Structural
IEC TS 62600-20:2019 - Part 20: Design and analysis of an Ocean Thermal Energy Conversion (OTEC) plant - General guidance IEC Guidance OTEC
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
Increase Of Open-Cycle OTEC Condenser Performance With Exhaust Of Non-Condensable Gas Takazawa, H., Tukana, S., Amano, M. Report OTEC, Open-Cycle Lab Data Performance
Indirect air CO2 capture and refinement based on OTEC seawater outgassing Straatman, P., van Sark, W. Journal Article OTEC, Open-Cycle
Initial Study Of Potency Thermal Energy Using OTEC (Ocean Thermal Energy Conversion) As A Renewable Energy For Halmahera Indonesia Andrawina, Y., Sugianto, D., Alifdini, I. Conference Paper OTEC
Injection power cycle applied in OTEC power plants Milikovic, M. Conference Paper OTEC Modeling
Innovation Outlook: Ocean Energy Technologies IRENA Report Current, Tidal, Wave, Salinity Gradient, OTEC
Integration of ocean thermal energy conversion and pumped thermal energy storage: system design, off-design and LCOS evaluation Ghilardi, A., Baccioli, A., Frate, G. Journal Article OTEC, Closed-Cycle Modeling Hybrid Devices, Performance
Internal flow effects in OTEC cold water pipe: Finite element modelling in frequency and time domain approaches Habib, M., Adiputra, R., Prabowo, A. Journal Article OTEC, Closed-Cycle Modeling Hydrodynamics, Substructure
International Workshop on Marine Energy Data Sharing: Workshop Report Copping, A., Weers, J., Ruehl, K. Workshop Article Current, Wave, Salinity Gradient, OTEC
Inverted vertical spout evaporators for open cycle ocean thermal energy conversion Ghiaasiaan, S., Wassel, A. Journal Article OTEC, Open-Cycle Lab Data, Modeling Hydrodynamics, Performance
Investigation of a low-pressure flash evaporation desalination system powered by ocean thermal energy Wang, L., Ma, X., Kong, H. Journal Article OTEC, Hybrid-Cycle Modeling Hybrid Devices, Performance
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
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
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
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
LNG as cold heat source in OTEC systems Arcuri, N., Bruno, R., Bevilacqua, P. Journal Article OTEC, Open-Cycle Field Data, Modeling Materials, Performance
Mapping available Ocean Thermal Energy Conversion resources around the main Hawaiian Islands with state-of-the-art tools Nihous, G. Journal Article OTEC Modeling
Marine Energy in the United States: An Overview of Opportunities Kilcher, L., Fogarty, M., Lawson, M. Report Current, Ocean Current, Riverine, Tidal, Wave, OTEC
Marine Renewable Energy in Canada: A Century of Consideration and Challenges Daborn, G., Viehman, H., Redden, A. Book Chapter Current, Wave, Salinity Gradient, OTEC
Marine Renewable Energy Seascape Borthwick, A. Journal Article Current, Wave, Salinity Gradient, OTEC
MATLAB Based Modeling of an OTEC Ammonia Power Plant Siow, A. Thesis OTEC, Closed-Cycle Modeling
Maximum efficiency point tracking for an ocean thermal energy harvesting system Xia, Q., Chen, Y., Yang, C. Journal Article OTEC Performance, Structural
Maximum output of an OTEC power plant Yeh, R., Su, T., Yang, M. Journal Article OTEC Modeling Performance
Maximum power of a multistage Rankine cycle in low-grade thermal energy conversion Morisaki, T., Ikegami, Y. Journal Article OTEC, Closed-Cycle Modeling Materials, Performance
Displaying 151 - 200 of 426 results