Impact of the chimney geometry on the power output of solar chimney power plant

2021 ◽  
Vol 28 (2) ◽  
pp. 291-303
Author(s):  
H. Semai ◽  
A. Bouhdjar
Keyword(s):  
Power Plant ◽  
Power Output ◽  
Solar Chimney ◽  
Solar Chimney Power Plant

Controlling power output of solar chimney power plant according to demand

2018 ◽  
Vol 41 (13) ◽  
pp. 1467-1481
Author(s):  
Benlahcene Djaouida ◽  
Zeroual Aouachria ◽  
Abdelmoumène Hakim Benmachiche ◽  
Sellami Ali
Keyword(s):  
Power Plant ◽  
Power Output ◽  
Solar Chimney ◽  
Solar Chimney Power Plant

Theoretical Performance Analysis of Solar Chimney Power Plant for Kota Region of Rajasthan, India

2015 ◽  
Vol 787 ◽  
pp. 157-161 ◽  
Author(s):  
Zainab Akhtar ◽  
K.V.S. Rao
Keyword(s):  
Power Plant ◽  
Solar Radiation ◽  
Power Output ◽  
Average Power ◽  
Energy Generation ◽  
Solar Chimney ◽  
Minute Interval ◽  
Average Power Output ◽  
Solar Chimney Power Plant ◽  
Theoretical Performance

A solar chimney power plant (SCPP) sometimes also called 'solar updraft tower' is a part of the solar thermal group of indirect solar conversion technologies, utilizing a combination of solar air collector and central updraft tube or chimney to generate a solar induced convective flow which drives pressure staged turbines to generate electricity. In this paper the performance of a solar chimney power plant (SCPP) is evaluated if established in the Kota region of Rajasthan in India. Kota has high intensity of solar radiation with more than 270 sunny days in a year. To investigate the theoretical performance evaluation of the solar chimney power plant in Kota region, total energy generation and average power output for every ten minute interval has been calculated on the basis of solar radiation and temperature data provided by Centre for wind energy Technology (C-WET) available for the period from June 2011-May 2012 for every ten minute interval. Subsequently day wise and month wise calculations have been performed for energy generation and power output for the year June 2011 - May 2012. Further, annual average power output of SCPP is calculated at Kota for different sets of dimensions of SCPP and assuming different values of collector efficiency. Power produced at the plant established in Kota region is compared with power output estimated by J. Schlaich by their experience gained from prototype of SCPP in Manzanares, Spain. Land area required for solar chimney power plant if installed in Kota region of Rajasthan India is calculated for 200 MW capacity plant.

Impact of the geometry of divergent chimneys on the power output of a solar chimney power plant

Energy ◽  
2017 ◽  
Vol 120 ◽  
pp. 1-11 ◽  
Author(s):  
Siyang Hu ◽  
Dennis Y.C. Leung ◽  
John C.Y. Chan
Keyword(s):  
Power Plant ◽  
Power Output ◽  
Solar Chimney ◽  
Solar Chimney Power Plant

Numerical and experimental study of the impact of conical chimney angle on the thermodynamic characteristics of a solar chimney power plant

2019 ◽  
Vol 233 (5) ◽  
pp. 1185-1199 ◽  
Author(s):  
Haythem Nasraoui ◽  
Zied Driss ◽  
Ahmed Ayadi ◽  
Abdallah Bouabidi ◽  
Hedi Kchaou
Keyword(s):  
Power Plant ◽  
Power Output ◽  
Thermodynamic Characteristics ◽  
Solar Chimney ◽  
Efficient System ◽  
Conical Angle ◽  
Mathematical Correlation ◽  
Typical Day ◽  
Solar Chimney Power Plant ◽  
The Impact

The goal of this paper is to study and optimize the conical chimney angle (α) of a divergent solar chimney power plant (DSCPP) by using CFD technique. The local airflow characteristics were analyzed in four configurations with different conical angles α = 0°, α = 3°, α = 6° and α = 9°. The first design is validated experimentally by using a pilot prototype build at the National School of Engineers of Sfax, Tunisia. In addition, some experimental results of the temperature, the velocity and the power output were presented during a typical day. A novel mathematical correlation was developed to prove the effect of the conical angle and the DSCPP scale on the power output. In fact, the relationship between the optimum conical angle and the system scale was performed based on both quadratic and cubic regressions. The computational results ensure that the conical chimney angle presents a parabolic tendency with the turbulence airflow characteristics and the power output. The performance of the DSCCP was degraded since the conical angle is greater than α = 3°. Furthermore, the optimum angle decreases with an increasing system scale. A commercial solar chimney with a conical angle around α = 1° presents an efficient system.

scholarly journals Study of Effect of Various Process Parameters on the Performance of Chimney Operated Solar Power Plant

2017 ◽  
Vol 7 (2 (S)) ◽  
pp. 160
Author(s):  
P.J. Bansod ◽  
S.B. Thakre ◽  
N.A. Wankhade
Keyword(s):  
Power Plant ◽  
Process Parameters ◽  
Power Output ◽  
Solar Power ◽  
Prototype Model ◽  
Maximum Height ◽  
Solar Power Plant ◽  
Solar Chimney ◽  
Input And Output ◽  
Solar Chimney Power Plant

Conventional energy sources like coal and oil used for power generation causes various environmental problems like creating pollution and creating ecological imbalance. These sources are also depleting due to lesser use of alternative resources. Chimney operated solar power plant is one of the best alternative which can be used to produce power in large capacity with the use of solar energy. It consist of very few number of parts like turbine, collector and chimney. This paper consist of study of effect of different process parameters on the performance this chimney operated solar power plant. A small prototype model of this power plant is fabricated which has collector of 1.8 m diameter and chimney of maximum height of 2.0 m. D.C motor with small generator and blades is used as turbine to get power output. The various process parameters like temperature, pressure, velocity are used to determine power output and efficiency of power plant. Numerous mathematical correlations were used to correlate these input and output parameters. The effect of chimney height on these parameters was studied. It was determined that temperature and velocity are the important parameters which improves the performance of solar chimney power plant along with chimney height and collector diameter.

scholarly journals Mathematical evaluation of sloped solar chimney power plant for power generation in different regions of Nepal

2020 ◽  
Author(s):  
Suresh Baral
Keyword(s):  
Power Generation ◽  
Power Plant ◽  
Ambient Temperature ◽  
Power Output ◽  
Pressure Ratio ◽  
Electrical Power ◽  
Solar Chimney ◽  
Solar Insolation ◽  
Solar Chimney Power Plant ◽  
Mathematical Evaluation

Abstract Sloped solar chimney power plant (SSCPP) could be one of the appropriate technologies for powering Nepalese communities. The main components of the plant are chimney, collector and power-generating unit. In this study, the mathematical evaluation of the SSCPP has been conducted for the estimation of the power generation in Nepalese context. For the analysis, the mathematical models have been developed from the governing equations. The parameters such as chimney height and radius, collector radius, ambient temperature and solar insolation have been taken as inputs for simulation of the overall system. The output parameters such as overall system efficiency, chimney efficiency, air velocity, power output from the turbine and electrical power from the proposed system have been evaluated. The results showed that power developed by air, turbine power and electrical power is 120, 66 and 44 kW, respectively. The developed power is estimated when the height and the radius of the chimney were 190 and 5 m, respectively. It is seen that ambient temperature and velocity of air also play an important role in the power generation. The performance influencing the power output based on turbine pressure ratio, thermal conductivity and specific heat capacity of soil and the mass flow rate have also been estimated. Besides, the solar insolation data were taken for five different regions of Nepal to find the power generation and collector efficiency.

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