Ocean energy terminology—Part 1: General
1Key Takeaways
This part of GB/T 33543 defines general terms and definitions related to ocean energy. This section applies to ocean energy and related fields.
2Expert Interpretation
Comprehensive analysis of the National Standard of the People's Republic of China GB/T 33543.1-2017 "Marine Energy Terminology Part 1: General", covering the definitions and applications of comprehensive terminology, tidal energy, tidal current energy, wave energy, temperature difference energy and salinity difference energy, and providing professional interpretation and implementation suggestions.
Interpretation of the National Standard of the People's Republic of China GB/T 33543.1—2017
I. Background and Overview of the Standard
GB/T 33543 "Ocean Energy Terminology" is divided into three parts, and this part is the definition of common terms. This standard is proposed by the State Oceanic Administration and managed by the National Technical Committee for Marine Standardization. It is applicable to ocean energy and related fields.
II. Analysis of Core Terms
| Term Category | Definition | Key Indicators | Application Scenarios |
|---|---|---|---|
| Ocean Energy | A general term for energy that exists in the ocean in the form of tides, currents, etc. | Economic evaluation indicators: resource value and development benefit analysis. | Renewable energy development. |
| Tidal current power density | Tidal current energy passing through a unit headwind area per unit time. | Calculation formula: $e=\frac{1}{2}\rho v^{3} \times 10^{-3}$. | Ocean energy power generation device design. |
III. Technology evolution analysis
Tidal current ellipse and Tidal current rose diagram are key technologies in ocean energy development, used to analyze tidal current direction and speed distribution. These tools can be used to optimize the layout and design of tidal generators.
IV. Implementation Recommendations
Case Study: Wave Energy Generation Technology
In shallow and medium water conditions, the wave power matrix is a key tool for evaluating the output power of the device. The theoretical model is verified by actual observation data to ensure the calculation accuracy of the wave excitation force.
V. Comparison of standard frameworks
| Term type | Definition basis | Scope of application | Degree of standardization |
|---|---|---|---|
| Comprehensive term | GB/T 1.1-2009 | General in the field of marine energy | High |
| Wave energy element | JTJ/T 277-2006 | Offshore engineering | Medium |
VI. Practical application of terminology
Seawater temperature difference energy conversion and salinity difference energy utilization are important directions for future ocean energy development. Energy conversion has been achieved through semi-permeable membrane technology, and preliminary results have been achieved in the laboratory.