Flow Through a Solar Chimney Power Plant Collector-to-Chimney Transition Section

Kirstein, Carl F.; ̈m, Theodor W. von Backstro; ̈ger, Detlev G. Kro

doi:10.1115/isec2005-76011

Cited by 10 publications

(10 citation statements)

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“…In addition, some researches also concentrated on shapes and configurations of the SC's chimney. In numerical calculation and theoretical analysis, Schlaich et al [24] chose the cylindrical chimney, with von Backström [10,24] and Pasumarthi et al [4,5] using the divergent chimney and conical chimney, respectively. Based on constraints such as equal chimney bottom section area or equal chimney surface area, Ming et al [25] analyzed the impact of several sizes of three different chimney configurations upon the chimney outlet air temperature and velocity, system output power and efficiency as well as the influence of the height to diameter ratio of the cylindrical chimney on system performance.…”

Section: Introductionmentioning

confidence: 99%

Analysis of output power smoothing method of the solar chimney power generating system

Ming

Meng

Liu

et al. 2012

Int. J. Energy Res.

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SUMMARY Severe fluctuation of the output power is a common problem in the generating systems of various renewable energies. The concept of output power fluctuation factor of renewable energy power generating systems was put forward in this paper. Aiming to decrease the fluctuation factor of output power in solar chimney power generating systems (SC), a novel hybrid energy storage system made of water, and sandstone was employed to replace the traditional sandstone energy storage system. The mathematical models of fluid flow, heat transfer and power generating features of SC were established and the influences of material, depth, areas and location of the energy storage layer upon output power were analyzed. The simulation results indicated that adopting the hybrid energy storage of water and sandstone can effectively decrease the fluctuation factor of SC output power and hence smooth the SC output power. In addition, according to the largest daily power generating capability or the smallest peak fluctuation factor, the corresponding optimum depth of the water energy storage layer would be 5 cm or 20 cm, respectively. Copyright © 2012 John Wiley & Sons, Ltd.

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Section: Introductionmentioning

confidence: 99%

Analysis of output power smoothing method of the solar chimney power generating system

Ming

Meng

Liu

et al. 2012

Int. J. Energy Res.

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“…This coefficient depends on the inlet guide vane (IGV) stagger angle and the ratio h/D. Kirstein and von Backström [17] developed a semi-empirical formula to predict this coefficient. If the IGV stagger angle and h/D are 22.5°and 0.356, respectively, the loss coefficient is 0.056.…”

Section: Additional Lossesmentioning

confidence: 99%

Constructal solar chimney configuration

Koonsrisuk

Lorente

Bejan

2010

International Journal of Heat and Mass Transfer

100

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“…Kröger and Buys [7] Presented analytical relations for determining the pressure differential due to frictional effects and heat transfer correlations for developing radial flow between the roof and the collector. Kirstein, et al [8], Kirstein, and Von Backström [9] presented studies focused on the loss coefficient in the transition section between the turbine and the chimney as dependent on inlet guide vane stagger angle and collector roof height including scaled model experiments and CFD simulations. The good agreement between the simulations and the experiments permits predictions for a proposed full-scale geometry.…”

Section: Introductionmentioning

confidence: 99%

Effect of varying ambient temperature and solar radiation on the flow in a solar chimney collector

Tayebi¹,

Djezzar²

2016

ijsgce

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The solar chimney is a simple solar thermal power plant that is capable of converting solar energy into thermal energy in the solar collector. The generated thermal energy is converted into kinetic energy in the chimney and ultimately into electric energy using a turbo generator. The aim of the present numerical study is to conduct a more detailed numerical analysis of a collector of the solar chimney. A mathematical model based on the continuity, Navier-Stokes, and energy equations was developed to determine the solar chimney power plant collector mechanism in detail. The basic equations were solved numerically using an iterative method. The distribution of temperature, velocity and pressure in the solar collector are illustrated for the city of "Adrar"-Southern Algeria-to examine the effect of varying ambient temperature and solar radiation on the flow in the collector. A good agreement was obtained between the experimental data of the Manzanares prototype and our results.

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Flow Through a Solar Chimney Power Plant Collector-to-Chimney Transition Section

Abstract: I, the undersigned, hereby declare that the work presented in this thesis is my own original work and that I have not previously in its entirety or in part submitted it at any university for a degree

Cited by 10 publications

References 1 publication

Analysis of output power smoothing method of the solar chimney power generating system

Analysis of output power smoothing method of the solar chimney power generating system

Constructal solar chimney configuration

Effect of varying ambient temperature and solar radiation on the flow in a solar chimney collector

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