The Comparison of CFD Flow Field between Slope Solar Energy Power Plant and Traditional Solar Chimney Power Generating Equipment

2013 ◽  
Vol 561 ◽  
pp. 614-619 ◽  
Author(s):  
Qing Ling Li ◽  
Xiao Qing Xie ◽  
Jun Chao ◽  
Xuan Xin ◽  
Yan Zhou
Keyword(s):  
Power Plant ◽  
Velocity Field ◽  
Solar Energy ◽  
Numerical Study ◽  
Solar Chimney ◽  
Heat Collector ◽  
Fluent Software ◽  
Generating Equipment ◽  
The Cost ◽  
Power Generating Equipment

A numerical study with FLUENT software has been carried out as to air performance in the slope solar energy power plant. The velocity field, temperature and pressure fields in the solar chimney, and the simulated result were compared with the simulated result of traditional solar chimney power generating equipment. The simulation results show that distribution of the temperature field and the velocity field in slope solar energy power plant and traditional solar chimney power generating equipment. In the case of the same height, the velocity of traditional is slightly larger than the slope style's, but there is little difference. In order to achieve the same power generation effect, the overall height of slope style is more than the traditional style, but the vertical chimney height of traditional style is greater than the slope style. The cost of construction of vertical chimney is expensive, and many problems have been considered, like radix saposhnikoviae and earthquake prevention, the heat collector also need to be cleaned on time. The slope style can take full advantage of land, the height of vertical chimney will be reduced, so the construction of the chimney will be relatively easy. Rainwater can clean the heat collector when it runs down from it. All things considered. The slope solar energy power plant has more development prospects.

scholarly journals Experimental and Numerical Study of Collector Geometry Effect on Solar Chimney Performance

2017 ◽  
Vol 12 (4) ◽  
pp. 59-71
Author(s):  
Aseel K. Shyaa ◽  
Rafea A. H. Albaldawi ◽  
Maryam Muayad Abbood
Keyword(s):  
Power Plant ◽  
Numerical Study ◽  
Governing Equations ◽  
Solar Chimney ◽  
Ansys Fluent ◽  
Glass Cover ◽  
Pilot Work ◽  
Fluent Software ◽  
Design Velocity ◽  
Solar Chimney Power Plant

There have been many advances in the solar chimney power plant  since 1930 and the first pilot work was built in Spain (Manzanares) that produced 50 KW. The solar chimney power plant is considered of a clean power generation that needs to be investigated  to enhance the performance by studying the effect of changing the area of passage of air to enhance the velocity towards the chimney to maximize design velocity. In this experimental and numerical study, the reduction area of solar collector was investigated. The reduction area that mean changing the height of glass cover from the absorbing plate (h1=3.8cm, h2=2.6cm and h3=1.28cm). The numerical study was performed using ANSYS Fluent software package (version 14.0) to solve governing equations. The aim of this work was to study the effect of change the height of reduction area to the design velocity (velocity move the blade of turbine at inlet in the chimney). The results showed that the third height (h3=1.28cm) gives the best result because when decreasing the height between the glass cover and absorbing plate, the area between them decreased and the design velocity increased then the efficiency of solar chimney model was increased.

Designing Solar Power Plant Due to Consumer Load Schedule, Solar Energy Potential, and Electricity Prime Cost

2019 ◽  
pp. 168-196
Author(s):  
Yuliia Daus ◽  
Valeriy Kharchenko ◽  
Igor Viktorovich Yudaev ◽  
Vera Dyachenko ◽  
Shavkat Klychev
Keyword(s):  
Power Plant ◽  
Solar Energy ◽  
Solar Power ◽  
Electrical Energy ◽  
Solar Power Plant ◽  
Energy Potential ◽  
Load Curve ◽  
Load Schedule ◽  
Production Building ◽  
The Cost

The object of research in the chapter is the solar power plant as the source of additional economically expedient power supply of the electrical energy consumer. The purpose of this research is to analyze the options for the layout of solar power plant, taking into account the solar energy potential of the district, the design features of the proposed location, the load curve of the consumer, and the cost of the generated electrical energy. The chapter presents the results of calculation and selection of the parameters of solar power plant elements on the roof of the consumer's production building. The chapter presents the results of research of the dependence of the cost of the electricity generated by the solar power plant on the number of installed panels, which in order to increase the realized solar energy potential of the district also allows adding photoelectric modules and accumulating devices in the layout of the operating station at tariff growth. The chapter presents the results of researching these areas, that are conducted by the authors and which are completely original.

Simulation of a pilot solar chimney thermal power generating equipment

2007 ◽  
Vol 32 (10) ◽  
pp. 1637-1644 ◽  
Author(s):  
Xinping Zhou ◽  
Jiakuan Yang ◽  
Bo Xiao ◽  
Guoxiang Hou
Keyword(s):  
Thermal Power ◽  
Solar Chimney ◽  
Generating Equipment ◽  
Power Generating Equipment

Numerical Study on Enhanced Paraffin/Air Heat Transfer with Extended Surface

2012 ◽  
Vol 501 ◽  
pp. 376-381
Author(s):  
Yan Zhou ◽  
Wen Juan Zheng ◽  
Xi Yan Fan ◽  
Jun Chao ◽  
Qing Ling Li
Keyword(s):  
Heat Transfer ◽  
Heat Storage ◽  
Numerical Study ◽  
Solar Chimney ◽  
Release Capacity ◽  
Vertical Heat ◽  
Heat Collector ◽  
Extended Surface ◽  
Solar Chimney Power Plant ◽  
Air Flow Velocity

The extended surface is used to enhance paraffin/air heat transfer because of the paraffin’s poor thermal conductivity, and the heat storing and releasing capacity of paraffin heat storage layer with variety of extended surface are compared by numerical simulation. The results show that: the heat storage layer with vertical rectangular fin extended surface has stronger ability on the heat storage and release, and can more effectively improve the air flow velocity in the solar chimney power plant system with vertical heat collector. Due to the restrictions of manufacturing, the heat storage and release capacity is stronger when the heat storage layer surface area with vertical rectangular fin is from 3.4 times to 5.8 times compare to the flat-plate heat storage layer.

Numerical Study on the Interaction of Water Mist with a Fire Plume

2011 ◽  
Vol 130-134 ◽  
pp. 1730-1733
Author(s):  
Xiang Di Zhao ◽  
Hong Li Xu ◽  
Xi Shi Wang
Keyword(s):  
Velocity Field ◽  
Droplet Size ◽  
Mass Flow ◽  
Numerical Study ◽  
Critical Value ◽  
Water Mist ◽  
Temperature History ◽  
Fire Plume ◽  
Plume Temperature ◽  
Fluent Software

A numerical study on the interaction of water mist with a fire plume was conducted using FLUENT software. The effects of different mist characteristics, such as droplet size and spray intensity, was considered in this simulation. The fire plume temperature history and velocity field were investigated. The results show that with a certain droplet size of water mist, the extinguishing time will be shorter when the mass flow of water increases, but this effect is no longer distinct after the mass flow of water mist increased to a critical value.

Numerical study on the performance of a solar chimney power plant

2015 ◽  
Vol 105 ◽  
pp. 197-205 ◽  
Author(s):  
Penghua Guo ◽  
Jingyin Li ◽  
Yunfeng Wang ◽  
Yuan Wang
Keyword(s):  
Power Plant ◽  
Numerical Study ◽  
Solar Chimney ◽  
Solar Chimney Power Plant

Unsteady Conjugate Numerical Simulation of the Solar Chimney Power Plant System with Vertical Heat Collector

2011 ◽  
Vol 704-705 ◽  
pp. 535-540 ◽  
Author(s):  
Yan Zhou ◽  
Xiao Hui Liu ◽  
Qing Ling Li
Keyword(s):  
Numerical Simulation ◽  
Power Plant ◽  
Solar Radiation ◽  
Output Power ◽  
Maximum Output Power ◽  
Maximum Output ◽  
Solar Chimney ◽  
Air Velocity ◽  
Heat Collector ◽  
Solar Chimney Power Plant

A new kind of solar chimney power plant system combining chimney and heat collector was designed. Paraffin was chosen as the material of energy storage layer and the unsteady conjugate numerical simulation of the system was done by Fluent software. The operation condition of the system was simulated when the solar radiation value was changed with time according to the actual situation. Simulation results showed that: with the increase of solar radiation, flow velocity of the air and the maximum output power increased. At twelve o'clock, the air velocity could reach 1.24 m/s and output power was 122W. Due to the energy storage effect of phase change materials, the system had output power of 1.3W at night. Moreover because of the continuous work of the heat storage layer, in the same condition of solar radiation, the air velocity and maximum output power increased with the system operation days extended.

Sign in / Sign up

Export Citation Format

Share Document