A Numerical experimentation on fluid flow and heat transfer in a SCPP

Mandal, Dipak Kumar; Goswami, P.; Pradhan, Sayan; Chakraborty, Rajarshi; Khan, Nargis; Bose, P. K.

doi:10.1088/1757-899x/1080/1/012027

Cited by 7 publications

(4 citation statements)

References 8 publications

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“…In general, the finer meshes are distributed adjacent to the solid walls. In order to obtain the converged solution, an iterative process is continued till the reduction of the residuals until 10 –6 for all the governing equations 61 – 63 . The corresponding solution procedure is demonstrated in a flow chart, which is shown in Fig.…”

Section: Numerical Techniquementioning

confidence: 99%

An application of artificial neural network (ANN) for comparative performance assessment of solar chimney (SC) plant for green energy production

Mandal,

Biswas,

Manna

et al. 2024

Sci Rep

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This study aims to optimize the power generation of a conventional Manzanares solar chimney (SC) plant through strategic modifications to the collector inlet height, chimney diameter, and chimney divergence. Employing a finite volume-based solver for numerical analysis, we systematically scrutinize influential geometric parameters, including collector height (hi = 1.85 to 0.1 m), chimney inlet diameter (dch = 10.16 to 55.88 m), and chimney outlet diameter (do = 10.16 to 30.48 m). Our findings demonstrate that reducing the collector inlet height consistently leads to increased power output. The optimal collector inlet height of hi = 0.2 m results in a significant power increase from 51 to 117.42 kW (~ 2.3 times) without additional installation costs, accompanied by an efficiency of 0.25%. Conversely, enlarging the chimney diameter decreases the chimney base velocity and suction pressure. However, as turbine-driven power generation rises, the flow becomes stagnant beyond a chimney diameter of 45.72 m. At this point, power generation reaches 209 kW, nearly four times greater than the Manzanares plant, with an efficiency of 0.44%. Nevertheless, the cost of expanding the chimney diameter is substantial. Furthermore, the impact of chimney divergence is evident, with power generation, collector efficiency, overall efficiency, and collector inlet velocity all peaking at an outer chimney diameter of 15.24 m (corresponding to an area ratio of 2.25). At this configuration, power generation increases to 75.91 kW, approximately 1.5 times more than the initial design. Remarkably, at a low collector inlet height of 0.2 m, combining it with a chimney diameter of 4.5 times the chimney inlet diameter (4.5dch) results in an impressive power output of 635.02 kW, signifying a substantial 12.45-fold increase. To model the performance under these diverse conditions, an artificial neural network (ANN) is effectively utilized.

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Section: Numerical Techniquementioning

confidence: 99%

An application of artificial neural network (ANN) for comparative performance assessment of solar chimney (SC) plant for green energy production

Mandal,

Biswas,

Manna

et al. 2024

Sci Rep

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“…The generated kinetic energy of the air is utilized by an air turbine at the entry to the chimney and converts mechanical energy into electrical using a generator. Finally, the hot air exits via a chimney outlet [57,58].…”

Section: Principles and Running Of Scppsmentioning

confidence: 99%

Solar Chimney Power Plants for Sustainable Air Quality Management Integrating Photocatalysis and Particulate Filtration: A Comprehensive Review

Mandal,

Bose,

Biswas

et al. 2024

Sustainability

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Urban air pollution has become a pressing challenge in recent times, demanding innovative solutions. This review delves into the potential of Solar Chimney Power Plants (SCPPs) as a sustainable approach to mitigating air pollution. The idea of mitigation of pollution may be an added advantage to the use of SCPPs in practice. Recent advancements, such as the integration of photocatalytic reactors (PCRs) for the elimination of greenhouse gases (GHGs), emphasizing the importance of addressing non-CO2 GHGs like CH4 and N2O are analyzed. The novelty of this review is that it not only focuses on the shifting and removal of particulate matter but also on the removal of greenhouse gases. Numerous case studies, ranging from filter-equipped SCPPs to Solar-Assisted Large-Scale Cleaning Systems (SALSCSs), are reviewed, providing a comprehensive understanding of their design, performance, and potential benefits. This review serves as a guide for researchers and policymakers, emphasizing the need for multifaceted approaches to address the intricate nexus of air pollution, renewable energy generation, and climate change mitigation.

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“…At the entry to the chimney, the wind turbine is coupled with a generator, which converts the kinetic energy of the flowing air into electricity. This electricity generation process harnesses the thermal energy of the heated air flowing through the chimney, enabling the SCPPs to produce electrical energy [33].…”

Section: Principles and Operationmentioning

confidence: 99%

Experimental Treatment of Solar Chimney Power Plant—A Comprehensive Review

Biswas,

Mandal,

Bose

et al. 2023

Energies

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Solar chimney power plants (SCPPs) are encouraging sustainable energy sources due to their low cost, abundance, low maintenance, and eco-friendliness. However, despite significant efforts to optimize SCPP design, their efficiency and power generation capabilities remain limited. Researchers have explored modifications in plant geometry and hybridization to improve efficiency. Despite extensive work in this area, commercialization of SCPPs has not yet been achieved. Most of the research is numerical and may differ from real-world practical use. The number of experimental studies is also relatively small. To facilitate commercialization, further investigation with practical and feasible dimensions is required. This comprehensive review paper aims to provide an in-depth analysis of experimental approaches and advancements in the field of SCPPs. The paper begins with an introduction, highlighting the background, significance, and objectives of the review. It provides an overview of the plants, discussing their principles and operation as innovative renewable energy systems. The historical development and evolution of solar chimneys are explored, shedding light on their progression over time. Case studies of operational hybrid SCPPs are examined to showcase real-world applications and performance. The paper also addresses environmental impacts and sustainability considerations associated with SCPPs. Furthermore, recommendations for future research and development in this field are provided to guide researchers and industry professionals. This study focuses on the possibility of commercialization of both standalone and hybrid SCPPs.

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A Numerical experimentation on fluid flow and heat transfer in a SCPP

Cited by 7 publications

References 8 publications

An application of artificial neural network (ANN) for comparative performance assessment of solar chimney (SC) plant for green energy production

An application of artificial neural network (ANN) for comparative performance assessment of solar chimney (SC) plant for green energy production

Solar Chimney Power Plants for Sustainable Air Quality Management Integrating Photocatalysis and Particulate Filtration: A Comprehensive Review

Experimental Treatment of Solar Chimney Power Plant—A Comprehensive Review

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