Yes.
Tidal energy is the energy contained in the periodic rise and fall of sea water. The difference in water level is expressed as potential energy and the speed of the tide is expressed in kinetic energy. of these energies can be used as a renewable energy source. Among the different energy sources present in the ocean, the development and use of tidal energy is the most realistic and simplest. Tidal energy is a renewable energy source that does not consume fuel, is not polluting, is not affected by flooding or low water levels and is inexhaustible. ?
Favorable conditions for the development of tidal energy
The advantages of the development and utilization of tidal energy are very obvious, including cleanliness and freedom from pollution, relatively stable resources, accurate forecasts, nopopulation. migration and full use, and the dikes are not high, will not have a serious impact on people's lives and property safety in downstream cities due to damage to dams due to war, natural disasters and other factors.
In addition, tidal power plants also have the characteristics of low operating costs and do not require backup units. Of course, the development and use of tidal power also has certain shortcomings. For example, compared to traditional energy, it has lower density and unstable production, greater one-time investment in dam construction, certain ecological impacts and corrosion and sedimentation problems.
What is the difference between hydropower, tidal power and ocean power?
Advantages:
1. Tidal energyis a clean and renewable energy that does not pollute the environment and does not affect the ecological balance. The tide rises and falls every day, again and again, and is inexhaustible. It can become an important additional energy source for the needs of life, production and national defense in coastal areas. 2. It is a relatively stable and reliable source of energy that is rarely affected by natural factors such as climate and hydrology. throughout the year is stable and non-existent. The influence of wet and dry years and wet and dry periods.
3. Tidal power plants do not need to flood a large amount of agricultural land to form a reservoir. So there are no complex problems such as population migration and flooding of agricultural land. Additionally, marine dams can be used to promote siltation and reclamation of large mudflats.s, and aquaculture, water conservation, marine chemicals and transportation can be combined to promote global use. This is an even greater advantage in coastal areas where there are many people but little land and agricultural land is of high value.
4. Tidal power plants do not need to build high dams. Even if natural disasters such as war or earthquake occur and the dam is damaged, it will not cause serious disasters to downstream cities, farmlands or people's lives. and property, etc.
5. Tidal power combines primary and secondary energy, does not require fuel, is not affected by primary energy prices, and has low operating costs. But like river hydroelectric power stations, they present the characteristics of a primary investment.re important and low cost of electricity production.
6. There are many units available, so there is no need to configure spare units.
Disadvantages:
1. Tidal range and water height change frequently throughout the day. In the absence of specific adjustment measures, the flow is intermittent, which causes inconvenience for users. However, an operating plan can be developed in advance based on tidal forecasts and executed in conjunction with the large power grid to overcome its intermittency.
2. The tides vary every two months and the tidal range can vary by two times, so keep the annual operating hours of certified production and installed capacity also low.
3. Tidal power stations are built at the mouths of ports, usually with deep water and long dams, making thedifficult construction, treatment of foundations and anti-siltation. Therefore, the investment in civil construction and mechanical and electrical equipment is large and the cost is high.
4. The tidal power plant is a form of electricity production with a low water level and a high flow rate. The flow direction of ebb and flow tide is opposite, so the turbine is large in size, consumes a lot of steel, and the water inlet and outlet building structure is complex. Additionally, due to immersion in seawater, seawater and marine organisms will corrode and contaminate metal structures and offshore buildings. A special anti-corrosion and anti-adhesion treatment of marine organisms is therefore necessary.
5. The tide change cycle is one lunar day (24h50min), the monthly cycle is about 14 days, and the daily high tide is lateof around 50min, it therefore does not correspond to the daily energy demand. diagram given as a function of solar day. Although tidal power generation has the above disadvantages, it can be improved with the continuous improvement of modern technology. For example, adopting measures such as bi-directional or multi-reservoir power generation, the use of pumped storage and the integration of electricity grid regulation can compensate for the first gap; the use of modern floating caissons for construction can save civil construction investments; and use vinyl series coatings, then use cathodic protection to overcome seawater corrosion and marine organism adhesion.
Water energy:
Water energy is a renewable energy source and a clean energy source. It refers to energy resourcess such as kinetic energy, potential energy and pressure energy of water masses. Broad water energy resources include river water energy, tidal water energy, wave energy, ocean current energy and other energy resources. Water energy resources in the narrow sense refers to river water energy resources. It is a conventional energy and a primary energy. Water can not only be used directly by humans, but it is also a vector of energy. Solar energy powers Earth's water cycle and keeps it running. Surface water flow plays an important role. In areas with high falls and significant flows, water energy resources are abundant. As fossil fuels become increasingly scarce, hydropower represents a very important and valuable alternative resource.omitter. Hydroelectric production around the world is still in its infancy. Water movements such as rivers, tides, waves and waves can all be used to generate electricity.
Tidal energy:
Tidal phenomena are caused by changes in the moon's gravity. Tides cause sea levels to rise and fall periodically. Energy generated by the rise and fall of the moon. seawater and tidal flow become tidal energy. Tidal energy is ocean energy in the form of potential energy, which refers to the potential energy and kinetic energy of water formed by the rise and fall of sea water.
The principle of tidal power generation is similar to that of ordinary hydropower generation. Leaving the reservoir, seawater is stored in the reservoir during high tide and storedin the form of potential energy. At low tide, using the difference between high and low tide levels, the gap between them causes the hydraulic turbine to rotate and drive the generator to produce electricity. The difference is that sea water is different from river water. The height of the accumulated seawater is not great, but the flow is large and intermittent. Therefore, the structure of the tidal power generation turbine must be adapted to the characteristics of low head and large flow. . The flow of tidal water is different from that of river water. It constantly changes direction. There are three forms of tidal power generation:
(1) Single-pool unidirectional power generation
(2) Single-pool electricity generation Electricity generation bidirectional pool
(3) Bidirectional double pool electricity production