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

2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Qingjun Liu ◽  
Fei Cao ◽  
Yanhua Liu ◽  
Tianyu Zhu ◽  
Deyou Liu
Keyword(s):  
Power Plant ◽  
Temperature Rise ◽  
Solar Collector ◽  
Thermal Power ◽  
Average Power ◽  
Northwest China ◽  
Solar Pv ◽  
Power Capacity ◽  
Solar Chimney ◽  
Pv Module

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.

Theoretical Performance Analysis of Solar Chimney Power Plant for Kota Region of Rajasthan, India

2015 ◽  
Vol 787 ◽  
pp. 157-161 ◽  
Author(s):  
Zainab Akhtar ◽  
K.V.S. Rao
Keyword(s):  
Power Plant ◽  
Solar Radiation ◽  
Power Output ◽  
Average Power ◽  
Energy Generation ◽  
Solar Chimney ◽  
Minute Interval ◽  
Average Power Output ◽  
Solar Chimney Power Plant ◽  
Theoretical Performance

A solar chimney power plant (SCPP) sometimes also called 'solar updraft tower' is a part of the solar thermal group of indirect solar conversion technologies, utilizing a combination of solar air collector and central updraft tube or chimney to generate a solar induced convective flow which drives pressure staged turbines to generate electricity. In this paper the performance of a solar chimney power plant (SCPP) is evaluated if established in the Kota region of Rajasthan in India. Kota has high intensity of solar radiation with more than 270 sunny days in a year. To investigate the theoretical performance evaluation of the solar chimney power plant in Kota region, total energy generation and average power output for every ten minute interval has been calculated on the basis of solar radiation and temperature data provided by Centre for wind energy Technology (C-WET) available for the period from June 2011-May 2012 for every ten minute interval. Subsequently day wise and month wise calculations have been performed for energy generation and power output for the year June 2011 - May 2012. Further, annual average power output of SCPP is calculated at Kota for different sets of dimensions of SCPP and assuming different values of collector efficiency. Power produced at the plant established in Kota region is compared with power output estimated by J. Schlaich by their experience gained from prototype of SCPP in Manzanares, Spain. Land area required for solar chimney power plant if installed in Kota region of Rajasthan India is calculated for 200 MW capacity 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]

scholarly journals Analysis of the Applicability of the Parabolic Trough Solar Thermal Power Plants in the Locations with a Temperate Climate

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3003
Author(s):  
Tomasz Janusz Teleszewski ◽  
Mirosław Żukowski ◽  
Dorota Anna Krawczyk ◽  
Antonio Rodero
Keyword(s):  
Energy Balance ◽  
Power Plant ◽  
Thermal Power Station ◽  
Solar Collector ◽  
Thermal Power ◽  
Solar Thermal ◽  
Simplified Model ◽  
Temperate Climate ◽  
Power Station ◽  
Solar Thermal Power

Currently, intensive work is underway in Poland to increase the share of renewable energy sources in the overall energy balance. Therefore, this paper presents the possibilities of using concentrated solar power in zones with a temperate climate. A simplified model based on the energy balance in the solar collectors considering the main operating parameters of the typical solar power plant was developed. It should be noted here that the model does not take into account issues related to heat accumulation and electricity generation in a Solar Thermal Power Station. The simulation of forced convection inside the solar collector absorber was additionally included in the calculations to improve its accuracy. The model was verified using actual heat measurements at the outlet of the parabolic collector installation at a Solar Thermal Power Station located in the south of Spain. The heat generated by a similar solar collector system in a selected region with a temperate climate, the city of Bialystok (north-eastern Poland, geographic coordinates: 53°08′07″N 23°08′44″E) was determined by the developed simplified model for different months of the year. Based on the results of the analysis, it was found that the energy obtained from the same area of concentrated solar collectors located near Bialystok is eight times lower compared to the location in Cordoba depending on the variant of the power plant operation.

Exergetic Analysis of a Solar Thermal Power Plant

2013 ◽  
Vol 724-725 ◽  
pp. 156-162 ◽  
Author(s):  
Jing Qiu Wu ◽  
Dao Fei Zhu ◽  
Hua Wang ◽  
Yong Zhu
Keyword(s):  
Power Plant ◽  
Energy Saving ◽  
Heat Loss ◽  
Thermal Efficiency ◽  
Thermal Power Plant ◽  
Solar Collector ◽  
Thermal Power ◽  
Exergy Loss ◽  
Solar Thermal ◽  
Solar Thermal Power

The study of heat loss and exergy loss distribution in the power plant system plays a very important role in improving the efficiency of the system. In this paper, a dynamic simulation model of the 5MW solar thermal power system is established. Then, the simulation test with the actual data in a solar thermal power plant is carried out, and we analyze the heat and the exergy loss of the system. The results show that, the heat loss of the condenser is the largest, up to 72%. To increase the thermal efficiency of the system, the energy-saving research for the condenser should be pay attention to. The solar collector field has the most of exergy loss in the system, accounting for approximately 89%. From the exergy efficiency perspective, the solar collector system has huge potential for energy- saving. The thermal efficiency and exergy efficiency of a solar thermal power plant system increases as the load increases, full-load operation of the unit should be maintained as much as possible.

A Solar Thermal Power System with Gas-Liquid Injector and Hydroturbine

2011 ◽  
Vol 347-353 ◽  
pp. 112-115
Author(s):  
Hui Lan Huang ◽  
Xiang Chen ◽  
Gang Li
Keyword(s):  
Power Plant ◽  
Thermal Power ◽  
Solar Thermal ◽  
Solar Chimney ◽  
Plant System ◽  
Solar Thermal Power ◽  
Thermal Power System ◽  
Liquid Injector ◽  
Solar Chimney Power Plant ◽  
New System

The characteristic of solar chimney power plant system is analyzed. For the key issue of low efficiency in solar chimney power plant system, a solar thermal power system with gas-liquid injector and hydroturbine is presented. This new system obtain the energy transferred process by gas-liquid injector. It is solar energy transformed into thermodynamic energy into potential energy and then into electricity. The density difference of work fluid is increased by gas-liquid phase transition in running process.The efficiency of solar thermal power generation is increased. In the case of the same cost, the theory power efficiency of new system increases one order of magnitude compared with the solar chimney power plant system. It proposes a new solution for large-scale application of solar thermal power technology.

Design of Commercial Solar Tower Systems: Utilization of Solar Induced Convective Flows for Power Generation

Solar Energy ◽  
2003 ◽  
Author(s):  
Jo¨rg Schlaich ◽  
Rudolf Bergermann ◽  
Wolfgang Schiel ◽  
Gerhard Weinrebe
Keyword(s):  
Power Plant ◽  
Thermal Power ◽  
Small Scale ◽  
Economic Data ◽  
Solar Chimney ◽  
Convective Flows ◽  
Solar Thermal Power ◽  
Solar Air Collector ◽  
Technical Issues ◽  
The One

An updraft Solar Tower power plant — sometimes also called ‘solar chimney’ — is a solar thermal power plant utilizing a combination of solar air collector and central updraft tube to generate a solar induced convective flow which drives pressure staged turbines to generate electricity. In the paper we first describe the functional principle of the Solar Tower and give some results from designing, building and operating a small scale prototype in Spain. Then future commercial Solar Tower systems like the one being planned for Australia are described. We present technical issues and basic economic data.

scholarly journals Site Selection of Solar PV Power Plant at Bathinda

2020 ◽  
Vol 8 (5) ◽  
pp. 5032-5038
Keyword(s):  
Power Plant ◽  
Energy Demand ◽  
Thermal Power ◽  
Electrical Power ◽  
Ghg Emissions ◽  
Electrical Energy ◽  
Simulation Software ◽  
Solar Pv ◽  
Energy Potential ◽  
For Profit

In this paper, the technical and economical feasibility study of the photovoltaic (PV) power plant at Bathinda city in the Punjab state of INDIA has been carried out. For this, solar irradiance of this location has been used to assess the annual solar energy potential of the selected site PV plant. The complete work has been carried out using PVsyst simulation software. This study has been carried out to feed the electrical energy generation deficit and the increasing future electrical energy demand of Punjab State. At present, Punjab State Power Corporation Limited (PSPCL) is paying ₹ 9.04 per kWh to the private players and the other states to procure electrical energy to meet the consumer load demand. In this work, it has been found that the actual cost to the company generating electrical power using PV is around ₹ 3 per kWh after including the capital cost, loan interests, depreciation, running charges and maintenance costs. So, the proposed PV generation setup definitely will prove to be beneficial for profit-making proposition for the company supplying electrical energy to PSPCL. Besides, reduction in carbon and GHG emissions with this proposed generation has also been evaluated, which will save the environment from global warming. This is due to the fact that most of the electrical power generation in the Punjab state of India is through thermal power

scholarly journals An Investigation of Hybrid Solar-Steam Power Plant: A case study in Iraq

2020 ◽  
Vol 10 (4) ◽  
pp. 199-216
Author(s):  
Dr. Karima Esmail Amori ◽  
Randa Rashid Sari
Keyword(s):  
Power Plant ◽  
Solar Collector ◽  
Thermal Power ◽  
Working Fluid ◽  
Feed Water ◽  
Outlet Temperature ◽  
Parabolic Trough ◽  
Flow Rates ◽  
Parabolic Trough Solar Collector ◽  
Side Flow

 In this work integrating Al-Zubaydia (Kut-Iraq) thermal power plant with solar thermal system is studied for heating feed water by solar energy to reduce fuel consumption and greenhouse gases emission. A closed type Parabolic Trough Solar Collector (PTSC) is designed, constructed, instrumented, and tested. Its thermal characteristics are reported under Iraq climate conditions for the period extended from June, to September 2017. The collector heat gain, efficiency, absorber temperature and heat exchanger effectiveness (considered as feed water heater) were presented for absorber side flow rates of (0.15, 0.2, 0.3, 0.4, 0.5) lpm of water or oil), and shell side water flow rates of (0.4, 0.5, 0.6lpm). Results show that the maximum obtained thermal efficiency of parabolic trough solar collector was 83.33% for oil working fluid. The maximum obtained oil outlet temperature was 106 oC at solar noon for (0.15) lpm. Theoretical results showed that the fuel save mode needs collector area of (32842 m2), while that needed for power boosting is (102569 m2) for the same thermal cycle efficiency. The fuel save mode reported a reduction in greenhouse emission.

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