Numerical analysis on the influence of ambient crosswind on the performance of solar updraft power plant system

Ming, Tingzhen; Wang, Xinjiang; Richter, Renaud de; Liu, Wei; Wu, Tianhua; Pan, Yuan

doi:10.1016/j.rser.2012.04.055

Cited by 82 publications

(35 citation statements)

References 65 publications

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“…This is because the wind sweeps over the transparent cover thereby causing loss of energy from the system to the ambient. This negative effect of the wind on the plant performance is in line with the reports of Pretorius [24] and Ming et al [28,32].…”

Section: Results Analysis and Discussionsupporting

confidence: 91%

“…VanReken and Nenes [27] in their investigation inferred that cloud would probably form as a result of downwind thus causing shade over the collector area and reduce performance. Ming et al [28] numerically simulated the effect of cross wind on the performance of SCPP and the results reveal two ways influence which inferred that when the wind is comparably weak (below 15m/s), the system performance deteriorates while strong wind (above 15 m/s) will increase the mass flow rate and output power of the system. Du Preez and Kröger [29,30] used turbulence numerical model to investigate the effect of wind on a cooling tower and it was found that the flows inside at on the inlet of the tower was affected by wind thus in order to minimize the wind effect, they introduced windbreak walls.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Experimental investigation of the effect of wind speed and wind direction on a solar chimney power plant

Aja

Al-Kayiem

Karim

2013

WIT Transactions on Ecology and the Environment

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Wind has been reported to have adverse effect on the performance of traditional solar chimney power plants but no reference has been made on the wind effect on inclined solar chimneys. An experimental investigation on the effects of ambient wind speed and wind direction on the performance of a south facing inclined solar chimney power plant model is reported in this paper. The effect of ambient wind speed and direction on the system performance was analyzed and the results showed that for the south facing collector, wind speed and directions have strong effects on the plant performance. The wind speed was found to have considerable influence on the convective heat loss through the cover and the walls to the ambient. Considering the wind direction, it was found that the system performance was favoured when the wind direction is from south moving north while the performance is impaired when the wind direction is from east or west. The results also showed some performance degradation when the wind is from the north. The findings also revealed that the walls of the air flow channel of the system resist the wind from sweeping the hot air generated in the system out to the ambient. Based on the findings, the use of inlet guide vanes as wind breakers at the collector inlet of traditional solar chimney power plant can reduce the losses associated to the wind effect inside the collector. The wind breakers will channel the natural energy of the wind into the system and enhance the system performance.

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Section: Results Analysis and Discussionsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Experimental investigation of the effect of wind speed and wind direction on a solar chimney power plant

Aja

Al-Kayiem

Karim

2013

WIT Transactions on Ecology and the Environment

View full text Add to dashboard Cite

show abstract

“…29). Ming et al [131] conducted a numerical analysis on the performances of an SCPP identical to the prototype in Manzanares [15] to investigate the impact of a strong ambient crosswind on the system output power through the collector inlet and chimney outlet. The results showed that when the ambient crosswind was comparably weak, it would deteriorate the flow field and reduce the output power of the SCPP.…”

Section: Analytical and Simulation Studiesmentioning

confidence: 99%

A review on solar chimney systems

Kasaeian

Molana

Rahmani

et al. 2017

Renewable and Sustainable Energy Reviews

150

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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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“…during construction as mentioned in section 1.1. It is also highly relevant for the design of cylindrical thin-walled solar updraft towers [169,218] where wind is the critical design load.…”

Section: Case Study: Ovalling Vibrations In a Silo Groupmentioning

confidence: 99%

“…As pointed out in the introduction (chapter 1), ovalling is also highly relevant during construction phases of such buildings and also for the design of solar updraft towers [169,218]. With heights up to several hundreds of meters and diameters of ten meters and more, ovalling vibrations have to be prevented by means of stiffening rings along the height and on top of these towers.…”

Section: The Ovalling Phenomenonmentioning

confidence: 99%