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
Potential sites for the use of ocean energy in the Mexican Caribbean Chávez, V., Barcenas, J., Martínez, M. Journal Article Current, Ocean Current, Wave, OTEC
Thermodynamic performance of a radial-inflow turbine for ocean thermal energy conversion using ammonia Zhang, C., Wu, Z., Wang, J. Journal Article OTEC, Closed-Cycle Modeling Hydrodynamics, Performance, Structural, Substructure
Opinion on ocean thermal energy conversion (OTEC) Xiao, C., Gulfam, R. Journal Article OTEC, Closed-Cycle Modeling Materials, Performance, Structural
Recent development of integrating CO2 hydrogenation into methanol with ocean thermal energy conversion (OTEC) as potential source of green energy Zulqarnain, M., Yusoff, M., Keong, L. Journal Article OTEC Performance
A Review of Offshore Renewable Energy in South America: Current Status and Future Perspectives Shadman, M., Roldan-Carvajal, M., Pierat, F. Journal Article Current, Wave, Salinity Gradient, OTEC Field Data Hybrid Devices
Objective Functions and Performance Optimization of Ocean Thermal Energy Conversion (OTEC) Cycle with CO2-Based Binary Zeotropic Mixture Power Cycle Shi, W., Sun, Y., Pan, L. Journal Article OTEC, Closed-Cycle Materials, Performance
Thermodynamic analysis and turbine design of a 100 kW OTEC-ORC with binary non-azeotropic working fluid Ma, Q., Gao, Z., Huang, J. Journal Article OTEC, Open-Cycle Modeling Materials, Performance, Structural
A review of geographic information system (GIS) and techno economic (TE) software tools for renewable energy and methodology to develop a coupled GIS-TE software tool for marine renewable energy (MRE) O’Connell, R., Murphy, J., McAuliffe, F. Journal Article Current, Wave, Salinity Gradient, OTEC Field Data, Modeling
Performance evaluation of Ocean Thermal Energy Conversion (OTEC) stabilization based on risk analysis Lim, S., Lee, H., Yoon, J. Journal Article OTEC, Closed-Cycle Field Data, Full Scale Performance, Substructure
Performance Analysis of a 10 MW Ocean Thermal Energy Conversion Plant Using Rankine Cycle in Malaysia Thirugnana, S., Jaafar, A., Rajoo, S. Journal Article OTEC, Closed-Cycle Modeling Performance
OTEC and Advanced Deep Ocean Water Use for Kumejima: An Introduction Martin, B., Okamura, S., Yasunuga, T. Conference Paper OTEC, Closed-Cycle Field Data, Full Scale Grid Integration, Performance
A transient model for clean electricity generation using Solar energy and ocean thermal energy conversion (OTEC) - case study: Karkheh dam - southwest Iran Dezhdar, A., Assareh, E., Keykhah, S. Journal Article OTEC, Hybrid-Cycle Modeling Hybrid Devices, Performance
OES Annual Report: An Overview of Ocean Energy Activities in 2022 Ocean Energy Systems (OES) Report Current, Tidal, Wave, OTEC
Evaluation of a novel OTEC System composed of Uehara Cycle for power and refrigeration cogeneration Xue, Y., Bian, Y., Liu, Y. Journal Article OTEC, Closed-Cycle Modeling Performance
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
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
Heat transfer mechanism of cold-water pipe in ocean thermal energy conversion system Mao, L., Wei, C., Zeng, S. Journal Article OTEC Modeling Performance
Thermodynamic Analysis of an Integrated OTEC-Based Multi-Generation Plant for Hydrogen and Freshwater Production Ramachandran, C., Arun Shal, U., Ramachandran, S. Conference Paper OTEC, Hybrid-Cycle Modeling Hybrid Devices, Performance
Theoretical analysis on extraction-ejection combined power and refrigeration cycle for ocean thermal energy conversion Zhang, Z., Yuan, H., Mei, N. Journal Article OTEC, Hybrid-Cycle Modeling Performance, Structural
Thermodynamic process control of ocean thermal energy conversion Fan, C., Wu, Z., Wang, J. Journal Article OTEC Modeling Hydrodynamics, Performance
Assessment of the stiffened panel performance in the OTEC seawater tank design: Parametric study and sensitivity analysis Lutfi, Y., Adiputra, R., Prabowo, A. Journal Article OTEC, Closed-Cycle Modeling Structural
Modeling and Optimization of a PCM-Based Ocean Thermal Energy Harvester for Powering Unmanned Underwater Vehicles Ouro-Koura, H., Jung, H., Borca-Tasciuc, D-A. Conference Paper OTEC Modeling
Using Drifters Equipped with Acoustic Tags to Verify the Efficacy of an Array of Acoustic Receivers for Estimating Probability of Fish-Turbine Encounter Wang, D., Zheng, M., Zhang, L. Journal Article OTEC Modeling Performance, Substructure
On technical issues for underwater charging of robotic fish schools using ocean renewable energy Jin, L., Cui, W. Journal Article Current, Wave, Salinity Gradient, OTEC Modeling Performance
4E analyses and multi-objective optimization for an innovative solar-ocean thermal energy conversion/air conditioning system Tian, Z., Zou, X., Zhang, Y. Journal Article OTEC, Closed-Cycle Modeling Hybrid Devices, Performance
Mission Analysis for Marine Renewable Energy To Provide Power for Marine Carbon Dioxide Removal Niffenegger, J., Greene, D., Thresher, R. Report Current, Wave, OTEC
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
Characterization of the Mechanical Properties of Low Stiffness Marine Power Cables through Tension, Bending, Torsion, and Fatigue Testing Ringsberg, J., Dieng, L., Li, Z. Journal Article Current, Wave, Salinity Gradient, OTEC Modeling Materials, Structural
Enabling the Ocean Internet of Things with Renewable Marine Energy Topper, M., Jarnoux, N., Costello, R. Conference Paper Current, Wave, Salinity Gradient, OTEC Lab Data, Modeling Control
Vortex induced vibrations of marine risers: validating turbulence models Wang, C., Vakis, A., Veldman, A. Conference Paper Current, Wave, OTEC Lab Data Hydrodynamics, Structural
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
Design Optimization of Ocean Thermal Energy Conversion (OTEC) Considering the Off-Design Condition Fan, C., Chen, Y. Journal Article OTEC Performance
The global techno-economic potential of floating, closed-cycle ocean thermal energy conversion Langer, J., Blok, K. Journal Article OTEC, Closed-Cycle Modeling
Vibrational Responses of an Ultra-Large Cold-Water Pipe for Ocean Thermal Energy Conversion: A Numerical Approach Tan, J., Zhang, Y., Zhang, L. Journal Article OTEC, Closed-Cycle Modeling Hydrodynamics, Substructure
Report on the 4th Marine Energy Instrumentation and Data Workshop Fao, R., Ainsworth, R., Bharath, A. Report Current, Wave, Salinity Gradient, OTEC
Reliability assessment of the ocean thermal energy conversion systems through Monte Carlo simulation considering outside temperature variation Ghaedi, A., Sedaghati, R., Mahmoudian, M. Journal Article OTEC Modeling 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
Performance enhancement of the combined power-refrigeration cycle using a liquid-gas-gas ejector for ocean thermal energy conversion Zhang, J., Zhang, Z., Zhou, S. Journal Article OTEC, Hybrid-Cycle Modeling Performance
Reviewing the energy, environment, and economy prospects of Ocean Thermal Energy Conversion (OTEC) systems Aresti, L., Christodoulides, P., Michailides, C. Journal Article OTEC
The future of ocean renewable energy Neill, S. Book Chapter Current, Wave, Salinity Gradient, OTEC
What future for marine renewable energy in Portugal and Spain up to 2030? Forecasting plausible scenarios using general morphological analysis and clustering techniques Vieira, M., Macedo, A., Alvarenga, A. Journal Article Current, Wave, Salinity Gradient, OTEC Modeling
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
Numerical analyses on the feasibility of TC type nozzles in ocean thermal energy Conversion turbines Ma, Q., Huang, J., Lu, H. Journal Article OTEC Modeling Structural
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
Marine Energy and Technologies - Possibilities of Exploiting the Adriatic Sea in Croatia Zvonimir, G., Giorgio, G., Nastia, D. Conference Paper Current, Wave, Salinity Gradient, OTEC Modeling
Theoretical analysis on temperature-lifting cycle for ocean thermal energy conversion Zhang, Z., Yuan, H., Yi, S. Journal Article OTEC, Closed-Cycle Modeling Performance
Enhancing Ocean Thermal Energy Conversion Performance: Optimized Thermoelectric Generator-Integrated Heat Exchangers with Longitudinal Vortex Generators Chung, Y., Wu, C. Journal Article OTEC Modeling Hydrodynamics
Effect of working fluid on the ORC cycle performance of the ocean thermal energy conversion system Zhang, K., Lv, X., Weng, Y. Journal Article OTEC, Closed-Cycle Modeling Performance
Energy and economic analysis of an ocean thermal energy conversion plant for Bangladesh: A case study Rashid, A., Nakib, T., Shahriar, T. Journal Article OTEC, Closed-Cycle Modeling
Role of R717 blends in ocean thermal energy conversion organic Rankine cycle Hu, Z., Chen, Y., Zhang, C. Journal Article OTEC, Closed-Cycle Modeling Performance
Displaying 351 - 400 of 426 results