Energy and exergy analyses of a parabolic trough collector operated with nanofluids for medium and high temperature applications
| Autor: | M. Benzakour Amine, Abdelmajid Jamil, Tarik Kousksou, Amine Allouhi, Rahman Saidur |
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| Přispěvatelé: | Laboratoire des Sciences de l'Ingénieur Appliquées à la Mécanique et au génie Electrique (SIAME), Université de Pau et des Pays de l'Adour (UPPA) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Exergy
Thermal efficiency Materials science 020209 energy Nuclear engineering Energy Engineering and Power Technology Thermodynamics 02 engineering and technology Nanofluid 7. Clean energy Exergy efficiency Heat transfer 0202 electrical engineering electronic engineering information engineering Parabolic trough [PHYS]Physics [physics] Renewable Energy Sustainability and the Environment business.industry Nanofluids in solar collectors 021001 nanoscience & nanotechnology Energy efficiency PTC Fuel Technology Nuclear Energy and Engineering Working fluid 0210 nano-technology business Thermal energy |
| Zdroj: | Energy Conversion and Management Energy Conversion and Management, Elsevier, 2018, 155, pp.201-217. ⟨10.1016/j.enconman.2017.10.059⟩ |
| ISSN: | 0196-8904 |
| DOI: | 10.1016/j.enconman.2017.10.059 |
| Popis: | International audience; Thermal performance of parabolic trough collectors (PTCs) can be improved by suspending nanoparticles into the traditionally used heat transfer fluids. In this work, a one-dimensional mathematical model is proposed to investigate the effect of various nanoprticles suspended in the working fluid for medium and high temperature PTCs. The major finding of this work is that the nanofluid enhances the thermal efficiency of the PTC slightly. High operating temperatures are more suitable for using nanofluids and generate higher relative gains of energy delivered. It is also found that the exergetic efficiency improvement is more important than energetic efficiency. The peak exergy efficiency is achieved by the CuO based nanofluid and is about 9.05%. The maximum daily relative gain of thermal energy delivered is found to be 1.46% by using 5% of Al2O3 in the base fluid. Optimal control of the operating conditions can lead to maximum energetic and exergetic performances of the PTC. |
| Databáze: | OpenAIRE |
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