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Standards Development
This technical specification provides methodologies and guidance for the standardized measurement and reporting of ocean temperature profiles required for the final design of Ocean Thermal Energy Conversion (OTEC) plants. The document outlines the requirements for measuring surface (warm) and deep (cold) water temperatures, as well as the depth of the mixed layer and euphotic zone, to ensure accurate resource assessment and optimal design of OTEC systems.
The methodologies include the use of standard oceanographic instrumentation and relevant procedures to collect water column temperature data over a given time period with sampling frequency. The document also provides guidance on the analysis of temperature records to account for variations induced by oceanographic phenomena such as bathymetry, wave and current interactions, and particulate.
Criteria for quality control is provided to quantify uncertainty. Criteria for minimum standards of reporting is provided to enable comparison of different locations and scenarios.
Ocean Thermal Energy Conversion (OTEC) is a promising renewable energy technology that harnesses the temperature difference between warm surface water and cold deep water to generate electricity. Accurate measurement of ocean temperature profiles is critical for the final design of OTEC plants, as the power output of OTEC systems is directly proportional to the square of the temperature difference (ΔT) between the warm and cold- water sources.
This technical specification addresses a significant knowledge gap in the OTEC industry by providing standardized methodologies for measuring and reporting ocean temperature profiles. The document is essential for ensuring the accurate assessment of thermal resources, optimizing OTEC system design, and mitigating potential environmental impacts such as sea surface temperature anomalies and biostimulation caused by the discharge of cold, nutrient-rich deep ocean water.
The proposed standard is of global relevance, as OTEC has the potential to provide clean, renewable energy to tropical and subtropical regions worldwide. The document is proposed as a standard with applicability across multiple sectors, including marine energy, oceanography, and environmental monitoring.
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