solar tower power plant is the beating heart of the sunflower city.
Among the most promising, environmentally friendly power technologies for large-scale applications are solar power tower plants.
Concentrating Solar Power (CSP) alternatives are among the most promising alternatives to fossil fuels because they rely on conventional technology and are relatively easy to scale up.
Among all CSP technologies available today, the solar power tower (PT) is expected to both significantly reduce its cost and improve its efficiency over time.
This technology has several potential advantages over Sustainability other CSP technologies (parabolic trough, linear Fresnel, and solar dish), including higher operating temperatures, which allow for greater efficiency of the thermodynamic cycle, low water consumption, and high-energy-density storage.
A typical PT plant consists of a solar field (SF), known as a heliostat field, a solar receiver (SR), a thermal energy storage (TES) unit, and a power block (PB).
CSP technology is growing rapidly, and the cost of PT is decreasing with the introduction of newer design methods as well as the use of more heat-conducting nanomaterials to produce superheated steam.
The operation of the power plant is as follows:
Sunlight is collected by mirrors in the solar field and reflected to the receiver in the tower.
The tower consists of a set of panels, each made of 32 thin-walled stainless steel pipes through which molten salt flows in a spiral path.
The panels form a cylindrical shell around the pipes, structural supports and control equipment.
A mixture of 60% sodium nitrate and 40% potassium nitrate is used as the salt storage medium. The salt is melted at 220 ° C and stored in a “cold” storage tank at 290 ° C in the molten state. It then passes through the receiver, where it is heated to 565 ° C and then reaches a “hot” tank for storage.
When a power plant is needed, hot salt is pumped to the steam generating system. To produce superheated dry steam, seawater that has passed through a sand filter and been purified in one step is converted to superheated steam by the heat of these hot salts and sent to a typical Rankin cycle turbine generator system to generate electricity. Be. Part of the superheated steam is sent to the condenser after turning the turbine blades to become distilled water, which is used for soilless cultivation in hydroponic greenhouses and other units that need water, and the rest to the Rankine cycle for rotation. Turbine blades and electricity generation are sent.
Molten salt is stored in a hot tank where there is no radiation during the night to provide the heat needed to continue generating steam and generating electricity during the night, and we generate 24 hours a day in a solar power plant. We have electricity and water at the same time.