Effect of slope tower angle and thermal storage media on flexibility solar chimney power plant performance

Semai, Hakim; Bouhdjar, Amor

doi:10.1002/ep.13646

Cited by 10 publications

(4 citation statements)

References 23 publications

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“…They emphasized that when gravel is used on the ground, a higher surface temperature could be achieved than when soil is used. Based on the Manzanares pilot plant, Semai and Bouhdjar [121] estimated the performance of a possible SCPP plant in Adrar, in the southwestern region of Algeria. In addition to the pilot plant, evaluated the effect of a floating chimney and an additional energy storage unit on the system, and analyzed the optimum power output.…”

Section: Properties Soil Gravel Sandmentioning

confidence: 99%

Solar Chimney Power Plants: A Review of the Concepts, Designs and Performances

et al. 2022

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This research presents a comprehensive review of solar chimney power plants (SCPP) as a reliable source of renewable electricity generation. Solar chimney power plants differ from other renewable energy technologies because thermal and momentum effects result in 24-h electricity generation. However, they are influenced by a wide range of design, geometrical and operational parameters, and environmental conditions. This review evaluates the design aspects and the theoretical, numerical, experimental, and performance findings in previous works holistically and concisely. The study also extensively discusses the various optimization strategies, advantages, disadvantages, and limitations of solar chimney power plants. Energy storage aspects and hybrid system designs are also addressed in the present review in order to overcome the known handicaps and limitations of solar chimney power plants. The performance figures of the technology are clearly demonstrated as a function of the design and operational conditions, and future prospects are discussed in detail. It is hoped that designers and policymakers will gain valuable insight into the technological features and advancements of solar chimney power plants, assisting them in making a better-informed decision.

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Section: Properties Soil Gravel Sandmentioning

confidence: 99%

Solar Chimney Power Plants: A Review of the Concepts, Designs and Performances

et al. 2022

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“…Golzardi et al 3 evaluated the influence of thermal energy storage systems on the operation and performance of solar updraft tower PPs. Semai et al 4 examined the influence of inclination angle of slope tower and thermal storage media on the adaptability of solar chimney power plant (SCPP) operation. Abdelsalam et al 5 conducted a study to investigate the feasibility of integrating a cooling tower (CT) and a conventional solar power plant (SPP) to generate electricity and desalinate seawater.…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation on performance of a solar chimney power plant with different absorber configurations

Mahdhi,

Ghriss,

Aryanfar

et al. 2024

Env Prog and Sustain Energy

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A solar tower system is a nonpolluting solar thermal power plant that utilizes a combination of a wind turbine and generator to convert thermal energy generated from a solar collector into electrical energy. The study focuses on a system comprising a solar collector that transforms solar energy into thermal energy, a chimney that converts thermal energy into kinetic energy, and a wind turbine that further converts kinetic energy into electrical energy. The system's performance is evaluated through the implementation of a numerical model, which is validated by comparing it with experimental data. Four different types of meshes are tested to determine the most suitable mesh for the system. The discrete ordinate radiation model is used to solve the radiative transfer equation, and the RNG k‐𝜀 turbulence model is implemented to calculate turbulence. In a subsequent study, the effect of absorber configuration on the system's performance is investigated. Three different absorber configurations—sinusoidal, square, and triangular—are proposed, and the numerical results showed that the system's performance is affected by the absorber configuration. The velocity in the chimney inlet increases for all proposed configurations compared to the standard configuration, with the triangular configuration showing the highest velocity increase. Additionally, the newly proposed configurations enhance the thermal efficiency of the system, leading to a thermal efficiency of 12.18%, 12.2%, and 13.65% for the sinusoidal, triangular, and square configurations, respectively. Overall, the solar tower system demonstrates its potential as a clean and efficient source of electrical power.

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“…Comparative studies have shown that divergent chimneys outperform cylindrical chimneys, with a 54% improvement in performance (9) . A study (10) examines the impact of chimney inclination (15 , and 30 • ) on the performance of freestanding updraft chimney solar power plants. It considers a straight rigid tower and a tilting tower under wind forces.…”

Section: Introductionmentioning

confidence: 99%

Computational Investigation of Under Expanded Solar Chimney Power Plant

Akhil,

Natarajan,

Yaknesh

2023

IJST

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Objectives:To study the effect of the Area Ratio of the chimney and collector on the driving potential of a Solar Chimney Power Plant (SCPP) using computational studies. Methods: The chimney whose area ratio (AR) is greater than unity is tested for three different collector shapes. The underexpanded chimneys are subjected to different collector configurations namely fully slopped, and sloped at midway. The computational analyses are carried out in ANSYS-FLUENT R2021. The temperature, velocity, and static pressure are compared with the Manzarnes prototype properties and found that the fully sloped collector is behaving best in comparison with the other two configurations. Then, a vertical Convergent Divergent (C-D) chimney with a fully sloped collector was investigated in at open environment in real-time conditions. Thermocouple, Anemometer is used to measure the temperature and anemometer respectively. Findings: The average temperature rise inside the SCPP is found to be 10K in the simulation studies using ANSYS-FLUENT. Sloped at midway collector configuration (case-2) achieved a peak velocity of 1.4m/s which is 12% superior to the fully slopped configuration (case-1). The case-1 outperformed the manzarnes plant by 23%. The Convergent Divergent (C-D) chimney with a fully sloped collector (case-3) behaves poorly which is inferior by 23%, and 12% to case-1 and case-2 respectively. Novelty: The novelty of this work lies in the comparison and simulation of three different configurations of the SCPP. This study is useful to society as it provides valuable insights into the design and optimization of solar power plants. The findings of this study can be used by engineers and energy experts to improve the efficiency of solar power plants, reduce the cost of energy production, and contribute to the global effort toward sustainable energy sources. The study also highlights the importance of considering different configurations and design elements in the optimization of solar power plants.

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Effect of slope tower angle and thermal storage media on flexibility solar chimney power plant performance

Cited by 10 publications

References 23 publications

Solar Chimney Power Plants: A Review of the Concepts, Designs and Performances

Solar Chimney Power Plants: A Review of the Concepts, Designs and Performances

Numerical investigation on performance of a solar chimney power plant with different absorber configurations

Computational Investigation of Under Expanded Solar Chimney Power Plant

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