Numerical simulation of the solar chimney power plant systems coupled with turbine

Ming, Tingzhen; Liu, Wei; Guoling, Xu; Xiong, Yan; Guan, Xiqiang; Pan, Yuan

doi:10.1016/j.renene.2007.06.021

Cited by 132 publications

(43 citation statements)

References 19 publications

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“…This model operated with the peak power about 50 kW for eight years [12]. Since then many researchers have studied the feasibility of the large scale solar chimney [13,14]. Several pilots of solar chimney have been constructed in the world and their performance has been investigated [15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

New combination of solar chimney for power generation and seawater desalination

Niroomand

Amidpour

2013

Desalination and Water Treatment

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A B S T R A C TIn this article, a new combination of solar chimney and Humidification-Dehumidification desalination process is introduced. In this system, the air is humidified by injection of water drops into the air flow. Then, the partial of vapors contained in the air is condensed on the outer surface of the cold water tubes. Two mathematical models have been developed for a one-dimensional flow in the solo solar chimney and the integrated system. The performance of the integrated system including power and potable water production is estimated and the results are discussed. Furthermore, it has been demonstrated that increasing in the temperature and mass flow rate of humidifier inlet water would improve the performance of the integrated system. It is found that the increase in water production would cause the decrease in power output. Also, to produce more fresh water, the number of dehumidifier tubes should be increased.

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Section: Introductionmentioning

confidence: 99%

New combination of solar chimney for power generation and seawater desalination

Niroomand

Amidpour

2013

Desalination and Water Treatment

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“…A direct connection had the smallest air mass flow due to the appearing of the flow recirculation at the junction, and a curved junction produced the highest flow [63]. Kirstein [64] and von Backstrom [65] Tingzhen et al [70] carried out numerical simulations on the chimney systems equipped with a 3-blade turbine. Also, the design and simulation of an MW-graded SC system with a 5-blade turbine was presented ( 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

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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“…The unknown system variables (P 8 , T 8 , P 9 , T 9 , P 10 , T 10 , ∆P HX and . m air ), can be determined by solving the system of Equations (11), (27), (33)- (36), (38) and (40). The updraft tower model can then be used to predict the turbine power output.…”

Section: Updraft Tower Modelmentioning

confidence: 99%

Performance Analysis of an Updraft Tower System for Dry Cooling in Large-Scale Power Plants

2017

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An updraft tower cooling system is assessed for elimination of water use associated with power plant heat rejection. Heat rejected from the power plant condenser is used to warm the air at the base of an updraft tower; buoyancy-driven air flows through a recuperative turbine inside the tower. The secondary loop, which couples the power plant condenser to a heat exchanger at the tower base, can be configured either as a constant-pressure pump cycle or a vapor compression cycle. The novel use of a compressor can elevate the air temperature in the tower base to increases the turbine power recovery and decrease the power plant condensing temperature. The system feasibility is evaluated by comparing the net power needed to operate the system versus alternative dry cooling schemes. A thermodynamic model coupling all system components is developed for parametric studies and system performance evaluation. The model predicts that constant-pressure pump cycle consumes less power than using a compressor; the extra compression power required for temperature lift is much larger than the gain in turbine power output. The updraft tower system with a pumped secondary loop can allow dry cooling with less power plant efficiency penalty compared to air-cooled condensers.

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Numerical simulation of the solar chimney power plant systems coupled with turbine

Cited by 132 publications

References 19 publications

New combination of solar chimney for power generation and seawater desalination

New combination of solar chimney for power generation and seawater desalination

A review on solar chimney systems

Performance Analysis of an Updraft Tower System for Dry Cooling in Large-Scale Power Plants

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