Mathematical evaluation of solar chimney power plant collector, integrated with external heat source for non-interrupted power generation

2018 ◽  
Vol 30 ◽  
pp. 59-67 ◽  
Author(s):  
Mohammed A. Aurybi ◽  
S.I. Gilani ◽  
Hussain H. Al-Kayiem ◽  
Ali A. Ismaeel
Keyword(s):  
Power Generation ◽  
Power Plant ◽  
Heat Source ◽  
External Heat ◽  
Solar Chimney ◽  
External Heat Source ◽  
Solar Chimney Power Plant ◽  
Mathematical Evaluation ◽  
Plant Collector

scholarly journals Mathematical evaluation of sloped solar chimney power plant for power generation in different regions of Nepal

2020 ◽  
Author(s):  
Suresh Baral
Keyword(s):  
Power Generation ◽  
Power Plant ◽  
Ambient Temperature ◽  
Power Output ◽  
Pressure Ratio ◽  
Electrical Power ◽  
Solar Chimney ◽  
Solar Insolation ◽  
Solar Chimney Power Plant ◽  
Mathematical Evaluation

Abstract Sloped solar chimney power plant (SSCPP) could be one of the appropriate technologies for powering Nepalese communities. The main components of the plant are chimney, collector and power-generating unit. In this study, the mathematical evaluation of the SSCPP has been conducted for the estimation of the power generation in Nepalese context. For the analysis, the mathematical models have been developed from the governing equations. The parameters such as chimney height and radius, collector radius, ambient temperature and solar insolation have been taken as inputs for simulation of the overall system. The output parameters such as overall system efficiency, chimney efficiency, air velocity, power output from the turbine and electrical power from the proposed system have been evaluated. The results showed that power developed by air, turbine power and electrical power is 120, 66 and 44 kW, respectively. The developed power is estimated when the height and the radius of the chimney were 190 and 5 m, respectively. It is seen that ambient temperature and velocity of air also play an important role in the power generation. The performance influencing the power output based on turbine pressure ratio, thermal conductivity and specific heat capacity of soil and the mass flow rate have also been estimated. Besides, the solar insolation data were taken for five different regions of Nepal to find the power generation and collector efficiency.

Solar Chimney Power Plant - A Review on Latest Technological Advances for Performance Enhancement

2021 ◽  
Vol 9 (VI) ◽  
pp. 2434-2443
Author(s):  
Sreelekha Arun
Keyword(s):  
Power Generation ◽  
Power Plant ◽  
Performance Enhancement ◽  
Mechanical Energy ◽  
Technological Advancement ◽  
Solar Chimney ◽  
Air Turbine ◽  
Power Generation Technology ◽  
Solar Chimney Power Plant ◽  
Generation Technology

The energy consumption on global scale is continuously increasing, resulting in rapid use of energy resources available. Solar chimney power generation technology hence began to get growing attention as its basic model needs no depleting resources like fossil fuels for its functioning but only uses sunlight and air as a medium. It takes the advantage of the chimney effect and the temperature difference in the collector that produces negative pressure to cause the airflow in the system, converting solar energy into mechanical energy in order to drive the air turbine generator situated at the base of the chimney. Solar Chimney Power Plant (SCPP) brings together the solar thermal technology, thermal storage technology, chimney technology and air turbine power generation technology. However, studies have shown that even if the chimney is as high as 1000 m, the efficiency achievable is only around 3%. Hence, this review paper intents to put together the new technological advancement that aims to improve the efficiency of SCPP.

Heat Storage Performance Analysis of Solar Chimney Power Plant System

2014 ◽  
Vol 472 ◽  
pp. 276-285 ◽  
Author(s):  
Hong Jing Guo ◽  
Jian Lan Li ◽  
Shu Hong Huang
Keyword(s):  
Heat Transfer ◽  
Power Generation ◽  
Power Plant ◽  
Heat Storage ◽  
Storage System ◽  
Solar Chimney ◽  
Unsteady Temperature ◽  
Heat Transfer Theory ◽  
Solar Chimney Power Plant ◽  
Continuous Power

Solar chimney power plant which can realize continuous power generation is a potential power generation technology. Based on the heat transfer theory and hydrodynamics theory, a comprehensive heat transfer and flow model of solar chimney power plant was proposed, and the characteristics of unsteady temperature field and flow field of the system were analyzed. With Manzanares solar chimney power plant as the geometric prototype, the performance of plant generation output and generation stability were studied in condition of different thickness of heat storage layer, different specific heat capacity and thermal conductivity of heat storage medium. The numerical stimulation results showed that above three factors significantly affected the power generation output and generation stability. Thus, the optimization of the three factors was achieved in this paper, which provides the basis for the solar chimney heat storage system design.

scholarly journals Numerical analysis of solar updraft power plant integrated with external heat source

2017 ◽  
Vol 131 ◽  
pp. 01004 ◽  
Author(s):  
Mohammed A. Aurybi ◽  
Hussain H. Al-Kayiem ◽  
Syed I. U. Gilani ◽  
Ali A. Ismaeel
Keyword(s):  
Numerical Analysis ◽  
Power Plant ◽  
Heat Source ◽  
External Heat ◽  
External Heat Source
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