The Chimney Solar Power Plant (SCPP) is designed to generate electricity from solar radiation. A chimney solar power plant is generally equipped with one or more turbines designed to say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an original essay to extract the kinetic energy of wind flowing upward due to natural convection. Subsequently the generator, coupled to the turbine, converts the kinetic energy of the wind into electrical energy. Several researchers have reported that the use of chimney solar power plant is an encouraging solution for producing electricity. The optimization of the solar system requires the study of geometric parameters such as the diameter of the collector, the height of the collector roof [1], the height of the chimney [2], the diameter of the chimney, the slope of the roof [ 3] and the design of the turbine. The first prototype of the SCPP was built in Manzanares. The prototype is characterized by a height of 194.6 m and a collector radius of 122 m. In this context, Haaf et al. [4-5] developed preliminary test results of the SCPP. The energy audits, the efficiency values of the collectors, the friction losses and the losses in the turbine section were presented. Ayadi et al. [3] developed a numerical model to evaluate the performance of solar chimney power systems by varying the collector roof angle. The authors reported that the efficiency of the solar chimney increases with a negative angle of the collector roof. Xu et al. [6] numerically analyzed the effects of solar radiation and pressure drop across the turbine on the power output of the solar stack power plant. From the literature, researchers have reported some configurations of turbine layouts such as single-rotor turbine without inlet vanes (IGV), single-rotor turbine with IGV, counter-rotating turbine without IGV, and counter-rotating turbine with IGV. The turbogenerator of the Manzanares prototype was designed by Schwarz and Knauss [7]. The authors proposed a single rotor layout without guide vanes. Subsequently, Gannon and Von Backström [8] carried out an experimental analysis of the performance of the solar chimney turbine. It has been reported by the authors that the total-total efficiency and total-static efficiency are 85-90% and 77-80% in the concept range, respectively. Another work was presented by the same authors [9] to develop analytical equations to define the impact of each coefficient on the turbine efficiency. Recently, Ming et al. [10] performed a numerical simulation for a chimney solar system coupled with a five-bladed turbine. The system considered is characterized by the height of the chimney equal to 400 m, the radius of the chimney equal to 30 m and the radius of the collector equal to 1500 m. The authors presented the impact of turbine rotational speed on the average stack exit velocity, average stack exit temperature, pressure drop across the turbine, and system mass flow rate. The maximum generated power and efficiency of the turbine are approximately 10 MW and 50%, respectively. Guo et al. [11] presented a 3D numerical simulation of a solar chimney coupled with a turbine. In their work they varied the rotation speed of the turbine to study the optimal operating condition of the turbine. In their study they took into account the influences of the angle of incidence of sunlight. The results revealed that the hourly variation of the sun's zenith angle is an important parameter for predicting the annual performance of the SCPP. Please note: this is just an example. Get one now.
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