Analysis of solar chimney power plant utilizing chimney discrete model

Hamdan, Mohammad O.

doi:10.1016/j.renene.2012.09.047

Cited by 50 publications

(28 citation statements)

References 20 publications

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“…Hamdan [130] evaluated the use of constant density assumption across solar chimney and compared it with a more realistic chimney mathematical discrete model that allows density variation across the chimney. Fig.…”

Section: Analytical and Simulation Studiesmentioning

confidence: 99%

A review on solar chimney systems

Kasaeian

Molana

Rahmani

et al. 2017

Renewable and Sustainable Energy Reviews

143

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The increased utilization of solar energy has gained the attention of researchers to develop the solar chimney (SC) technology in recent years. Many studies have been conducted in this aear both experimentally and theoretically, whereas experimental studies are mainly focused on small-scale systems. This work provides a comprehensive and updated review that include most of the experimental studies, analytical and simulation works, the solar chimney applications, hybrid systems and geographical case studies based on extended references, citation of the updated works and the specified way of looking at different sections. The technological gaps in differnet sections are identified and a summary of suggestions is given for the future work, including more experimental works on the large-scale systems, and CFD analyses for optimization between the geometrical parameters and the output power. More studies on new applications of solar chimney technology including hybrid systems are also recommended.

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Section: Analytical and Simulation Studiesmentioning

confidence: 99%

A review on solar chimney systems

Kasaeian

Molana

Rahmani

et al. 2017

Renewable and Sustainable Energy Reviews

143

View full text Add to dashboard Cite

show abstract

“…The research of [16] presents numerical simulations of a solar chimney power plant with a radiation model wherein the results indicate that the radiation model is essential in preventing the overestimation of energy absorbed by the solar chimney power plant. In [17], a mathematical thermal model for steady state airflow inside a solar chimney power plant based upon the modified Bernoulli equation with buoyancy effects and ideal gas equation are given. The results show that the chimney height, the collector radius, the solar irradiance, and the turbine head are essential parameters for the design of solar chimneys.…”

Section: Literature Reviewmentioning

confidence: 99%

Thermal-Fluids Analysis of a Hybrid Solar/Compost Waste Heat Updraft Tower

Anderson¹,

Shafahi²,

McNamara³

2015

JOCET

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Abstract-This paper presents the results for a feasibility study of a solar chimney which uses low-grade waste heat from compost in conjunction with solar energy transmitted via a transparent roof top. The feasibility study shows that the solar chimney's turbine power increases with pressure ratio, the height of the chimney as well as the differential temperature in the chamber. This paper also outlines the thermodynamic modeling related to using waste heat from composting to increase the air temperature in the inlet chamber of a solar chimney. It is found that from this analysis that the average temperature in the chamber increases as a function of the chimney inlet chamber axial length. The combined raw in input total heat gain for this hybrid solar composting chimney is found to be 6.24 MW of which 66% (4.12 MW) is comprised of solar, and 34% (2.12 MW) is comprised of composting energy Index Terms-Composting, waste heat recovery, solar updraft tower .

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“…Results indicated that the chimney height is a significant factor to optimize the performance of the SCPP. Hamdan noted that solar irradiance, height of the chimney, collector diameter, and the turbine head are indispensable factors to design the SCPP. Patel et al focused on the study of SCPP by the use of commercial CFD code Ansys‐Cfx to increase the flow characteristics within the SCPP.…”

Section: Introductionmentioning

confidence: 99%

Experimental and computational analysis of the collector geometry of a solar chimney

Ayadi

Driss

Abid

2019

Env Prog and Sustain Energy

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The solar chimney power plants (SCPP) are thermodynamic devices that transform the heat produced by the solar radiation into electricity. A SCPP make significant contributions to the energy generating in countries where sunlight is available. The optimization of the solar setups is essential to enhance their economic profitability. In this article, a numerical method is investigated by the use of the commercial CFD code Ansys Fluent to analyze the airflow within the solar chimney. Different considered cases have been studied. Indeed, a new design of the SCPP is presented and compared with a conventional solar chimney power plant (CSCPP). The proposed design is characterized by a convergent collector output. For each case, the local flow characteristics were presented and discussed. This technical solution favorite the generated power of CSCPP. This article is identified important to increase the generated power for an existing SCPP.

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Analysis of solar chimney power plant utilizing chimney discrete model

Cited by 50 publications

References 20 publications

A review on solar chimney systems

A review on solar chimney systems

Thermal-Fluids Analysis of a Hybrid Solar/Compost Waste Heat Updraft Tower

Experimental and computational analysis of the collector geometry of a solar chimney

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