Abstract
This study presents a case study of a novel hybrid solar chimney power plant (HSCPP) design’s performance in the city of Doha, Qatar. The HSCPP construction is similar to the traditional solar chimney power plant (SCPP) but with the addition of water sprinklers installed at the top of the chimney. This allowed the solar chimney (SC) to operate as a cooling tower (CT) during the nighttime and operate as an SC during the daytime, hence providing a continuous 24-h operation. The results showed that the HSCPP produced ~633 MWh of electrical energy per year, compared to ~380 MWh of energy produced by the traditional SCPP. The results also showed that the HSCPP was able to produce 139,000 tons/year of freshwater, compared to 90,000 tons/year produced by the traditional SCPP. The estimated CO2 emission reduction (~600 tons/year) from the HSCPP is twice that of the traditional SCPP (~300 tons/year). The results clearly show that the HSCPP outperformed the traditional SCPP.
Highlights
Increasing demand for energy and water, driven by an exponential increase in the world population and industrial growth, without proper management will lead to more stress on the available resources and increased air pollution
The wind speed was recorded to be in the range of 1.5–6.7 m/s with an average value of 3.7 m/s, this change will be shown to have a minimum impact on the performance of the SCCP, as opposed to the other factors
The results showed that the hybrid solar chimney power plant (HSCPP) can run continuously if the weather conditions are favorable
Summary
Increasing demand for energy and water, driven by an exponential increase in the world population and industrial growth, without proper management will lead to more stress on the available resources and increased air pollution. Sustainable, renewable, and clean energy has emerged as a favorable choice to reduce GHG and mitigate climate change impact [1,4,5]. Some clean energy technologies, such as solar photovoltaic (PV) and wind, do not depend on water. Require huge amounts of water, such as biofuels and nuclear power. This is an additional burden on already scarce water resources. Among all renewable energy technologies, solar PV has increasingly becomes the first utility choice because of its competitive price, but many challenges still lie ahead, such as the efficiency of the PV panel, intermittent nature, and integration policies [6,7,8,9]
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