Questions and current understanding about solar chimney power plant: A review

Guo, Penghua; Li, Tiantian; Xu, Ben; Xu, Xinhai; Li, Jingyin

doi:10.1016/j.enconman.2018.12.063

Cited by 81 publications

(21 citation statements)

References 144 publications

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“…Covering about 71% of the earth's surface, water is one of the largest resources on earth. About 97% of the water on earth exists as saline water in oceans and seas, 2% of water has also been stored in frozen form in Polar Regions, and the rest exists as freshwater in lakes, groundwater, and rivers . Due to rapid growth of the world's population and weak water management, access to freshwater in natural water reservoirs is decreasing on a daily basis .…”

Section: Introductionmentioning

confidence: 99%

Experimental evaluation of solar still efficiencies as a basic step in treatment of wastewater

Taherizadeh

Farahbod

Ilkhani

2019

Heat Trans. Asian Res.

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The present study investigates a unit for making use of freshwater in a kiln in a practical manner. At first, in this unit, the saline wastewater flowing out of the MED unit in Mobin Petrochemical Complex enters a gravitational bed and is subjected to preliminary treatment. In the next stage, the same saline wastewater enters the first pretreatment reactor for undergoing a coagulation procedure; then, it enters a second biological reactor for undergoing both coagulation and biological treatment. Afterwards, the output current of the biological reactor enters a solar pond for the separation of the dissolved salt in the wastewater, for which, it enters an antiseptic system that uses ultraviolet (UV) for treatment. Finally, the saline wastewater is transformed into a soft treated current. In the present study, the performance of a solar condensation unit installed on the path of the output wastewater of the UV antiseptic unit has been examined. In this study, the thermal output, conduction output, and freshwater production output have been altogether subjected to practical evaluation.The results offered herein are indicative of the relative error rates equal to about 7.2% and 4.9% for thermal output of day and night, respectively. Moreover, the conduction efficiency relative errors have been about 7% and 5.6% for day and night, respectively. In addition, on average, the relative cumulative error of the thermal energy storage substrate's output was about 3.5% per day over a month. K E Y W O R D Sconduction efficiency, production rate, solar-powered desalination unit, thermal output, wastewater treatment

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Section: Introductionmentioning

confidence: 99%

Experimental evaluation of solar still efficiencies as a basic step in treatment of wastewater

Taherizadeh

Farahbod

Ilkhani

2019

Heat Trans. Asian Res.

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“…Among many issues, its low efficiency, high bulk size requirement and its dependency on the solar irradiation are the major obstacles experienced [6,7]. On the other hand, it is expected that SCPP will possibly play an important role in increasing energy resources, enhance the energy system and reduce the environmental impacts after utilising the current research and development of construction technology, novel materials and revolution concepts [8].…”

Section: Introductionmentioning

confidence: 99%

Investigations of the instantaneous performance of a solar chimney power plant installed in Aswan using IoT

Esmail

Mekhail

2019

IET Renewable Power Generation

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Although solar chimney power plant (SCPP) has a promising potential to convert the solar energy to electric power, greater efforts are needed to ensure its successful commercialisation on a large scale. The main obstacles with regard to the large-scale applications of SCPP are its efficiency, bulk size and dependency on solar irradiation. A comprehensive study on the integration of the Internet-of-Things (IoT) as a novel technique to monitor and hence improve its performance is presented. A small-scale SCPP is designed and constructed specifically for this purpose in Aswan, Egypt. The instantaneous performance parameters (temperature, solar intensity, wind speed, open circuit voltage, power etc.) were measured and further processed using IoT. The results show that IoT has a promising potential to enhance the performance of the system by providing a complete picture of the whole measurements. This is considered as a step forward for enhancing the technologies which will ensure the success of large-scale SCPP in the real world.

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“…Commercial SCPPs have a series of advantages such as simple technical principles, low operation and maintenance expenses, and low global warming potential. The Manzanares prototype was built in 1980s [5], and since then much research work has been conducted in this field [2,[6][7][8][9]. There are also some disadvantages of SCPPs.…”

Section: Introductionmentioning

confidence: 99%

Daily dynamic performance of a solar chimney power plant integrated by waste heat recovery

Zhou

2020

IET Renewable Power Generation

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The numerical simulation of a large-scale hybrid SCPP (an additional waste heat source is connected to the collectorto-chimney transition section) is performed based on a transient model. The daily dynamic profiles of power output, mass flow rate of condensed water and temperature at a representative point for continuous 24 h are obtained, as well as the daily total electricity output and the power difference-to-average ratio (PDAR) defined as the ratio of the peak-valley difference of the daily power profile to the daily average. The effect of effective waste heat flux (EWHF) on the power output by changing the solar radiation intensity is evaluated. Results show that the incorporation of waste heat with enough high heat flux into SCPP causes clear enhancement of the power output. With the increase in the EWHF from 0 to 2 GW, the daily total electricity output increases by 119.99% and the PDAR drops from 1.61 to 0.8. Moreover, the PDAR is smaller for weaker solar radiation. This indicates that enough high waste heat flux helps to flatten the daily profile of the plant power output, especially for weak solar radiation. While low waste heat flux has little influence on the power output and the PDAR.

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Questions and current understanding about solar chimney power plant: A review

Cited by 81 publications

References 144 publications

Experimental evaluation of solar still efficiencies as a basic step in treatment of wastewater

Experimental evaluation of solar still efficiencies as a basic step in treatment of wastewater

Investigations of the instantaneous performance of a solar chimney power plant installed in Aswan using IoT

Daily dynamic performance of a solar chimney power plant integrated by waste heat recovery

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