Experimental study of temperature field in a solar chimney power setup

Zhou, Xinping; Yang, Jiakuan; Xiao, Bo; Hou, Guoxiang

doi:10.1016/j.applthermaleng.2006.12.007

Cited by 151 publications

(50 citation statements)

References 8 publications

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“…Several authors Sangi et al, (2011);Ghalamchi et al, (2013); Kasaeian et al, (2014); Zhou et al, (2007) show no changes up to this point which temperature is slightly lower but illustrates an important physical phenomenon according to Figure 3. The heat transfer between the fluid and the absorber reaches its maximum between the positions of sensors 4 and 5.…”

Section: Figure 4: Temperature Variations Along the Absorber (H = 3m)mentioning

confidence: 99%

Experimental study in natural convection

Ousmane¹,

Dianda²,

Kam³

et al. 2015

Glo Jnl Pure Appl Sci

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The study of thermal and ventilation parameters, obtained in a transient, laminar solar chimney of reduced dimensions, (1 < m <3) m with a square collector (side = 2m) is presented. Experimental measurements has been made to determine the temperature of the absorber and the fluid in the collector, it is shown that at the entrance of the chimney, the temperature of the absorber decreases slightly while that of the fluid is maintained at a maximum level. Temperature differences were observed up to 32°C between the atmosphere and the fluid in April. A temperature variation at the absorber depending on the stack height is presented. Temperature measurements in the chimney, at various heights depending on the axial coordinate, show a variable temperature profile. It is, from these, shown that, in the selected interval of stack height, the average speeds of output increase linearly as a function of stack height. For a chimney of 3m in height and 20cm in diameter, a maximum speed of approximately 0.7 ms -1 was observed. The lack of appropriate equipment handicaps the velocity measurement at the chimney entrance. Thus, the results of simulations with the computer code COMSOL 5.1 has confirmed temperature values measured at the chimney entrance and after this, velocity values are determined.

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Section: Figure 4: Temperature Variations Along the Absorber (H = 3m)mentioning

confidence: 99%

Experimental study in natural convection

Ousmane¹,

Dianda²,

Kam³

et al. 2015

Glo Jnl Pure Appl Sci

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“…In 2002, a pilot solar chimney power of 5 W was built on the roof of a building by Zhou et al [20], [21] in…”

Section: Review On Experimental Workmentioning

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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“…Secondary objectives are to compare the measured and predicted results and through investigation of the experimental results suggest improvements to the turbine design. (Zhou, et al, 2007a): A pilot experimental solar chimney power setup consisted of an air collector 10 m in diameter and an 8 m tall chimney has been built. The temperature distribution in the solar chimney power setup was measured.…”

Section: Scpp Theoretical Modelsmentioning

confidence: 99%