Solar updraft tower power generation

Zhou, Xinping; Xu, Yangyang

doi:10.1016/j.solener.2014.06.029

Cited by 95 publications

(39 citation statements)

References 160 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The turbine generator efficiency, ηt, is set to 80% [1]. The driving potential, ∆p, is equal to the difference between p0 and p3.…”

Section: Mathematical Modelmentioning

confidence: 99%

See 1 more Smart Citation

Mathematical Modelling of the Performance of a Solar Chimney Power Plant with Divergent Chimneys

Leung

2017

Energy Procedia

View full text Add to dashboard Cite

Chimney is a critical component influencing the performance of a Solar Chimney Power Plant (SCPP). An enhancement on the power output of SCPPs with divergent chimneys was observed in a number of experimental and numerical studies using Computational Fluid Dynamic (CFD) models. In this paper, a mathematical model was established to analyse the hydrodynamic features of a series of divergent chimneys in a SCPP. The importance of estimating the loss from the potential diffuser stall in divergent chimneys was especially discussed in this study. The result of the mathematical model was compared with those of CFD simulation to evaluate the validity and the performance of this present model. Subsequently, parametric studies were conducted by using this mathematical model. The performance of divergent SCPPs was found to be governed by the area ratio of chimney entrance over its exit. The result further indicated that the optimal area ratio of divergent chimneys was different when the chimney height varied from 100m to 300m. Besides, several shorter divergent SCPPs showed a comparable power output as the cylindrical SCPPs with taller chimneys, which demonstrated an outstanding advantage of divergent SCPPs for commercial application.

show abstract

“…The turbine generator efficiency, ηt, is set to 80% [1]. The driving potential, ∆p, is equal to the difference between p0 and p3.…”

Section: Mathematical Modelmentioning

confidence: 99%

“…It allows warm air from a solar collector move upwards to drive a wind turbine, converting the internal energy of the air into mechanical energy. The shape of chimney is usually cylindrical in most studies [1,2]. Based on this, the hydrodynamic characteristics of cylindrical chimneys were analyzed comprehensively.…”

Section: Introductionmentioning

confidence: 99%

Mathematical Modelling of the Performance of a Solar Chimney Power Plant with Divergent Chimneys

Leung

2017

Energy Procedia

View full text Add to dashboard Cite

show abstract

“…Simulation Methodology. Equations to calculate the coefficients, namely, the heat transfer coefficients, the loss coefficients, the friction loss, and turbine efficiency, follow the previous studies [1,4,18]. The equations are converted into the codes to solve the equations.…”

Section: Chimney Continuity Equationmentioning

confidence: 99%

Design and Simulation of a Solar Chimney PV/T Power Plant in Northwest China

Liu

Cao

Liu

et al. 2018

International Journal of Photoenergy

View full text Add to dashboard Cite

A solar chimney PV/T power plant (SCPVTPP) is proposed. Mathematical models are established for the PV/T solar collector, the chimney, and the power conversion unit, respectively. Performances of the designed SCPVTPP are then simulated. The SCPVTPPs with different PV module areas are finally discussed. It is found that the PV cells hold the highest temperature in the solar collector. Temperature rise of the PV module has significant influences to its power generation. Without cooling, the PV power capacity has an average decrease of 28.71%. The contradictory influences of temperature rise and airflow cooling lead to an 11.81% decrease of the average power capacity. By adding the power generated by PVT, the total PV-related power contribution increases by 4.72%. With the increase of the solar collector ratio, the temperature rise and the wind velocity both first decrease then increase, the SCPP power productivity decreases linearly, and the PV power productivity increases linearly, whereas the PVT power productivity first increases linearly then increases superlinearly. There is a reversed solar collector ratio, exceeding which the PV generates most power. In this study, solar thermal power takes the major role when the solar PV area ratio is smaller than 0.055.

show abstract

“…Among all the CSP technologies, PT can achieve higher-temperature operation compared to other CSP technologies and yield higher thermal-to-electric conversion efficiency [10,11]. The two types of PT are differentiated by water/steam or molten salt heat-transfer fluid in the receiver.…”

Section: Introductionmentioning

confidence: 99%

Dynamic simulation of steam generation system in solar tower power plant

Zhang

Wang

et al. 2019

Renewable Energy

View full text Add to dashboard Cite

Concentrated solar power plant (CSP) with thermal energy storage can be operated as peak load shaving plant, which is one of the most economic solutions to the intermittency of renewable energy grid. The steam generation system (SGS) is the central hub between the heat transfer fluid and the working fluid of CSP, of which the dynamic characteristics need to be further investigated. The SGS of Solar Two power tower plant with the molten salt as both the heat transfer fluid and storage media is selected as the object. The mathematical model with lumped parameter method is developed to analyze its dynamic characteristics. Model validation is carried out and it shows that the proposed model can simulate the characteristics of SGS in an accurate manner. Five simulation tests were carried out under the disturbances that the molten salt solar tower power plant may encounter under various solar irradiation and output electrical load. Both the dynamic and static

show abstract

Solar updraft tower power generation

Cited by 95 publications

References 160 publications

Mathematical Modelling of the Performance of a Solar Chimney Power Plant with Divergent Chimneys

Mathematical Modelling of the Performance of a Solar Chimney Power Plant with Divergent Chimneys

Design and Simulation of a Solar Chimney PV/T Power Plant in Northwest China

Dynamic simulation of steam generation system in solar tower power plant

Contact Info

Product

Resources

About