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
Ocean thermal energy harvesting with phase change material for underwater glider Ma, Z., Wang, Y., Wang, S. Journal Article OTEC, Closed-Cycle Field Data, Modeling, Full Scale Performance, Power Take Off
Simulation of a Hybrid Solar and Ocean Thermal Energy Conversion System Sahoo, P., Padhy, J. Journal Article OTEC Modeling Hybrid Devices, Performance
Ocean Thermal Energy Conversion (OTEC) Heat Exchanger Test and Evaluation Hawaii Natural Energy Institute Report OTEC Performance, Structural
Energy budget of the thermal gradient in the Southern Brazilian continental shelf Souza, R. , Marques, W. Journal Article OTEC Field Data, Modeling
Performance evaluation and parametric optimum design of an updated ocean thermal energy conversion system Cai, L. Journal Article OTEC Modeling Performance
A thermal engine for underwater glider driven by ocean thermal energy Yang, Y., Wang, Y., Ma, Z. Journal Article OTEC Lab Data, Modeling Materials, Performance
Numerical prediction of the performance of radial inflow turbine designed for ocean thermal energy conversion system Nithesh, K., Chatterjee, D. Journal Article OTEC, Closed-Cycle Lab Data, Scale Device Performance
Marine Renewable Energy Seascape Borthwick, A. Journal Article Current, Wave, Salinity Gradient, OTEC
Thermoeconomic analysis of an ocean thermal energy conversion plant Jung, J., Lee, H., Kim, H. Journal Article OTEC Modeling
Dual-use open cycle ocean thermal energy conversion (OC-OTEC) using multiple condensers for adjustable power generation and seawater desalination Kim, A., Kim, H., Lee, H. Journal Article OTEC, Open-Cycle Modeling Performance
Study of Ocean Thermal Energy Conversion (OTEC) Generation as Project of Power Plant in West Sumatera-Indonesia Octaviani, F., Muslim, M., Faturachman, D. Journal Article OTEC Modeling
Design and performance analysis of radial-inflow turboexpander for OTEC application Nithesh, K., Chatterjee, D., Oh, C. Journal Article OTEC Modeling Hydrodynamics
Ocean Thermal Energy Conversion Ravindran, M., Abraham, R. Book Chapter OTEC Performance, Structural
Dual-use open cycle ocean thermal energy conversion (OC-OTEC) using multiple condensers for adjustable power generation and seawater desalination Kim, A., Kim, H., Lee, H. Journal Article OTEC, Open-Cycle Modeling Performance
Energy harvesting for marine based sensors Davidson, J. Thesis Wave, OTEC Modeling Performance, Power Take Off, Structural
Potential Evaluation of Ocean Thermal Energy Conversion Morisaki, T., Yasunaga, T., Ikegami, Y. Journal Article OTEC Performance
Performance analysis of a solar-assisted OTEC cycle for power generation and fishery cold storage refrigeration Yuan, H., Zhou, P., Mei, N. Journal Article OTEC, Closed-Cycle Modeling Hybrid Devices, Performance
Thermodynamic analysis and optimization of a 10MW OTEC Rankine cycle in Reunion Island with the equivalent Gibbs system method and generic optimization program GenOpt Sinama, F., Martins, M., Journoud, A. Journal Article OTEC, Closed-Cycle Lab Data, Modeling Control, Performance
LNG as cold heat source in OTEC systems Arcuri, N., Bruno, R., Bevilacqua, P. Journal Article OTEC, Open-Cycle Field Data, Modeling Materials, Performance
Multi-objective optimization of an ocean thermal energy conversion system for hydrogen production Ahmadi, P., Dincer, I., Rosen, M. Journal Article OTEC, Hybrid-Cycle Modeling Hybrid Devices
OTEC heat exchanger program ultrasonic scanning for corrosion monitoring Makai Ocean Engineering Report OTEC Lab Data Materials
OTEC Potential in the Indonesian Seas Syamsuddin, M., Attamimi, A., Nugraha, A. Journal Article OTEC Field Data Hydrodynamics
Performance Test of Double-stage Rankine Cycle Experimental Plant for OTEC Kusuda, E., Morisaki, T., Ikegami, Y. Journal Article OTEC, Closed-Cycle Lab Data Performance
OTEC Matters 2015 Dessne, P., Golmen, L. Report OTEC
Design Optimization Of Power Generation And Desalination Application In Malaysia Utilizing Ocean Thermal Energy Chik, M., Othman, N., Sarip, S. Journal Article OTEC, Closed-Cycle Modeling Performance
Off-design performance analysis of a closed-cycle ocean thermal energy conversion system with solar thermal preheating and superheating Aydin, H., Lee, H., Kim, H. Journal Article OTEC, Closed-Cycle Performance
OTEC XH Testing Program 2014 Annual Report Makai Ocean Engineering Report OTEC Performance, Structural
Performance characteristics of a high-efficiency R717 OTEC power cycle Yoon, J., Son, C., Baek, S. Journal Article OTEC, Closed-Cycle Modeling Control, Performance
Analysing the Effect of the Hot Water Temperature Change on Different OTEC Processes Knorst-Fouran, A., Teixeira, D., Ambrosino, J. Conference Paper OTEC, Closed-Cycle Modeling Control, Performance
A review of synthetic fiber moorings for marine energy applications Davies, P., Johanning, L., Weller S. Conference Paper Current, Wave, OTEC Materials, Mooring
Performance analysis of an absorption power cycle for ocean thermal energy conversion Yuan, H., Zhou, P. Journal Article OTEC, Closed-Cycle Modeling Performance
An economic and environmental assessment of transporting bulk energy from a grazing ocean thermal energy conversion facility Gilmore, E., Blohm, A. , Sinsabaugh, S. Journal Article OTEC, Closed-Cycle Modeling Materials
A novel working fluid for building air-conditioning and ocean thermal energy conversion Lee, H., Kim, H., Jung, D. Journal Article OTEC, Hybrid-Cycle Modeling Materials, Performance
Feasibility study of a combined Ocean Thermal Energy Conversion method in South Korea Jung, H., Hwang, J. Journal Article OTEC, Closed-Cycle 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
Analysis of optimization in an OTEC plant using organic Rankine cycle Yang, M., Yeh, R. Journal Article OTEC Performance
Ocean Thermal Energy Conversion: Technology Brief Kempener, R., Neumann, F. Report OTEC
Ocean thermal energy resources in Colombia Devis-Morales, A., Montoya-Sánchez, R., Osorio, A. Journal Article OTEC Modeling
Economic Design of OTEC Power Plant with Concurrent Production of Desalinated Water – A Case Study Narayanan, C. Journal Article OTEC, Hybrid-Cycle Performance
Public funding for ocean energy: A comparison of the UK and U.S. Jeffrey, H., Sedgwick, J., Gerrard, G. Journal Article Current, Wave, Salinity Gradient, OTEC
Numerical and experimental study of the phase change process for underwater glider propelled by ocean thermal energy Kong, Q. , Ma, J., Xia, D. Journal Article OTEC, Closed-Cycle Lab Data, Modeling Control, Performance
Thermal power plant efficiency enhancement with Ocean Thermal Energy Conversion Soto, R., Vergara, J. Journal Article OTEC Modeling
Wave energy conversion and ocean thermal energy conversion potential in developing member countries Vega, L. Report Wave, OTEC
An assessment of global Ocean Thermal Energy Conversion resources under broad geographical constraints Rajagopalan, K., Nihous, G. Journal Article OTEC Modeling
Experimental investigation on an ammonia-water based ocean thermal energy conversion system Yuan, H., Mei, N., Hu, S. Journal Article OTEC, Closed-Cycle Lab Data Performance
Multi-use offshore platform configurations in the scope of the FP7 TROPOS Project Quevedo, E., Cartón, M., Delory, E. Conference Paper OTEC, Closed-Cycle Hybrid Devices
Experimental studies on a closed cycle demonstration OTEC plant working on small temperature difference Faizal, M., Ahmed, M. Journal Article OTEC, Closed-Cycle Lab Data, Scale Device Performance
Energy and exergy analyses of hydrogen production via solar-boosted ocean thermal energy conversion and PEM electrolysis Ahmadi, P., Dincer, I., Rosen, M. Journal Article OTEC, Open-Cycle Lab Data, Modeling Hybrid Devices, Performance
Ocean Thermal Energy Conversion at SBM Kibbee, S. Conference Paper OTEC
A novel radial self-rectifying air turbine for use in wave energy converters Falcao, A., Gato, L., Nunes, E. Journal Article Oscillating Water Column, OTEC Performance, Structural
Displaying 301 - 350 of 426 results