Solar Chimney Power Plant Performance

2006 ◽  
Vol 128 (3) ◽  
pp. 302-311 ◽  
Author(s):  
Johannes P. Pretorius ◽  
Detlev G. Kröger
Keyword(s):  
Power Plant ◽  
Large Scale ◽  
Power Production ◽  
Plant Performance ◽  
Solar Chimney ◽  
Roof Shape ◽  
Reference Plant ◽  
Computer Simulation Program ◽  
Solar Chimney Power Plant ◽  
Plant Power

This paper evaluates the performance of a large-scale solar chimney power plant. The study considers the performance of a particular reference plant under specified meteorological conditions at a reference location in South Africa. A computer simulation program is employed to solve the governing conservation and draught equations simultaneously. Newly developed convective heat transfer and momentum equations are included in the numerical model and multiple simulations are performed. Results indicate 24hr plant power production, while illustrating considerable daily and seasonal power output variations. It is shown that plant power production is a function of the collector roof shape and inlet height.

Thermoeconomic Optimization of a Solar Chimney Power Plant

2008 ◽  
Vol 130 (2) ◽  
Author(s):  
Johannes P. Pretorius ◽  
Detlev G. Kröger
Keyword(s):  
Power Plant ◽  
Computer Simulations ◽  
Large Scale ◽  
Cost Model ◽  
Solar Chimney ◽  
Construction Costs ◽  
Cost Structures ◽  
Solar Chimney Power Plant

No physical optimum solar chimney power plant exists when only regarding the dimensions of such a plant. However, if construction costs are introduced, thermoeconomically optimal plant configurations may be established. This paper investigates the thermoeconomic optimization of a large-scale solar chimney power plant. Initially, relevant dimensions are selected, which are to be optimized. An approximated cost model is then developed, giving the capacity for finding optimum plant dimensions for different cost structures. Multiple computer simulations are performed and results are compared to the approximated cost of each specific plant. Thermoeconomically optimal plant configurations are obtained.

Effect of the ground heat storage on solar chimney power plant performance in the South of Tunisia: Case of Tozeur

Solar Energy ◽  
2019 ◽  
Vol 193 ◽  
pp. 545-555 ◽  
Author(s):  
Faten Attig-Bahar ◽  
Melik Sahraoui ◽  
Mohamed Sadok Guellouz ◽  
Slim Kaddeche
Keyword(s):  
Power Plant ◽  
Heat Storage ◽  
Plant Performance ◽  
The South ◽  
Solar Chimney ◽  
Solar Chimney Power Plant

Solar Chimney Cycle Analysis With System Loss and Solar Collector Performance

2000 ◽  
Vol 122 (3) ◽  
pp. 133-137 ◽  
Author(s):  
Anthony J. Gannon ◽  
Theodor W. von Backstro¨m
Keyword(s):  
Experimental Data ◽  
Simple Model ◽  
Power Plant ◽  
Kinetic Energy ◽  
Solar Collector ◽  
Large Scale ◽  
Small Scale ◽  
Energy Losses ◽  
Solar Chimney ◽  
Solar Chimney Power Plant

An ideal air standard cycle analysis of the solar chimney power plant gives the limiting performance, ideal efficiencies and relationships between main variables. The present paper includes chimney friction, system, turbine and exit kinetic energy losses in the analysis. A simple model of the solar collector is used to include the coupling of the mass flow and temperature rise in the solar collector. The method is used to predict the performance and operating range of a large-scale plant. The solar chimney model is verified by comparing the simulation of a small-scale plant with experimental data. [S0199-6231(00)00503-7]

Analytical Thermal Analysis of Solar Chimney Power Plant

2010 ◽  
Author(s):  
Mohammad O. Hamdan
Keyword(s):  
Power Plant ◽  
Analytical Model ◽  
Numerical Data ◽  
Ideal Gas ◽  
Second Law ◽  
Solar Chimney ◽  
Solar Plant ◽  
Solar Chimney Power Plant ◽  
Plant Power ◽  
Monotonic Relation

An analytical model and a thermodynamics study of the steady airflow inside a solar chimney are performed in this paper. A simplified Bernoulli equation combined with fluid dynamics and ideal gas equation are modeled and solved using EES solver to predict the performance of a solar chimney power plant. The analytical model is validated against an experimental and numerical data available in the literature. The developed analytical model is used to evaluate the effect of geometric parameters on the solar plant power generation. The analysis is showing that the height and diameter of the tower are the most important physical variables for the solar chimney design. The collector area has minimal effect on second-law efficiency but strong effect on harvested energy. The second law efficiency has non-monotonic relation with the turbine head.

Solar Chimney Power Plant Performance Analysis in the Central Regions of Iran

2012 ◽  
Vol 135 (1) ◽  
Author(s):  
A. Asnaghi ◽  
S. M. Ladjevardi ◽  
A. Haghparast Kashani ◽  
P. Saleh Izadkhast
Keyword(s):  
Power Plant ◽  
Performance Analysis ◽  
Solar Radiation ◽  
Power Plants ◽  
Plant Performance ◽  
Solar Chimney ◽  
Electrical Grid ◽  
Central Regions ◽  
Solar Chimney Power Plant ◽  
A Site

In the current study, the performance analysis of a solar chimney power plant expected to provide off-grid electric power demand for villages located in Iranian central regions is presented. High annual average of solar radiation and available desert lands in the central parts of Iran are factors to encourage the full development of a solar chimney power plant for the thermal and electrical production of energy for various uses. The interested is in Kerman where solar radiation is much better than other areas of Iran. The obtained results clear that solar chimney power plants having 244 m diameter can produce from 25.3 to 43.2 MW h of electricity power on a site like Kerman during different months of a year, according to an estimation calculated from the monthly average of sunning. This power production is sufficient for the needs of the isolated areas and can even used to feed the main electrical grid.

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