STEs are become more economical, the use of STEs to generate power is ever increasing. Solar thermal electric energy generation concentrates the light from the sun to create heat, and that heat is used to run a heat engine, which turns a generator to make electricity. Various methods exist to concentrate the solar radiation, including parabolic troughs, power towers with mirrors that track the sun, parabolic dishes, and Fresnel reflectors. A fluid (also called heat transfer fluid) like synthetic oil, molten salt and pressurized steam passes through the receiver and becomes very hot. The fluid containing the heat is transported to a boiler to produce steam which can then be used in the process or to generate electricity.
The solar collector comprised of a huge array of concave mirrors. These mirrors track the position of the sun throughout the day, focusing the sun’s energy on a black tube that runs along the focus of the array. This black tube is surrounded by a second glass tube vacuum chamber that protects it from the air, allowing it to absorb solar energy more effectively. As super-heated water passes through the black tube, the solar energy heats it up to 450°F (232°C). Hot water is measured by the high temperature LUGB vortex flow meters, while steam and condensate flow can be measured by the vortex flow meter in the system. The water then runs through a boiler system that uses its heat to generate steam. The steam can used to generate electricity or in certain manufacturing process, it is also used to transfer heat to other process like oils or other fluids. Cooled water flows back through the tube to the solar concentrator field will be measured by the LDG electromagnetic flow meters and the process is repeated.
Advantage and challenge
The Supmea family of flow technologies can be a one stop-shop in all the flow measurement requirements in a Solar Thermal Energy plants.The Supmea LDG electromagnetic flow meters are used to measure cooled water flowing back to the solar collectors
The LDG family of flow technologies can be a one stop-shop in all the flow measurement requirements in a Solar Thermal Energy plants, regardless if the process is used to generate electricity or used as a heat-transfer fluid to heat other process fluids.