Abstract
The use of fossil fuels leads to depletion of fuel reserves and environmental pollution. One way to achieve a sustainable future in urban areas and remote communities is to use the independent renewable energy systems. Meanwhile, solar energy is one of the most common sources of energy generation that has attracted of the world. The present study provides the comprehensive examine the performance of two parabolic dish collector and flat-plate collector from energy, exergy, Enviroeconomic and Exergoenviroeconomic view of points. To examine the performance of solar systems, the climatic conditions of two different cities in Asia (Beijing and Tehran) have been used. In addition, the performance of the systems is investigated under different parameters and using different working fluids and MWCNT nanoparticle. It was found that the both solar systems have better overall performance in Tehran than in Beijing. Moreover, in the months when the solar collector has lower exergy efficiency, its use in Tehran compared to that Beijing has a better exergy performance than other months. In addition, the lowest and highest Levelized Cost of Energy are belong to dish collector (in Tehran with water) and flat plate collector (in Beijing with Dowtherm Q), respectively. For Tehran, LCOE of dish collector increases more than 5.5-fold when using water/MWCNT nanofluid instead of water.
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