| Autor: |
Constantine Teubissi Simeu, Donatien Njomo, Venant Sorel Chara-Dackou, Mahamat Hassane Babikir |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
Results in Engineering, Vol 23, Iss , Pp 102353- (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2590-1230 |
| DOI: |
10.1016/j.rineng.2024.102353 |
| Popis: |
The use of nanofluids (NFs) as heat transfer fluids (HTFs) is one way of improving the thermal performance of parabolic trough solar collectors (PTSCs). This study presents a comparative analysis of the thermal performance of a PTSC using nanofluids as HTF. Two categories of nanoparticles (NPs) (green and conventional) and two base fluids (water and Syltherm 800) giving eight nanofluids are used in a one-dimensional quasi-static thermal model, simulated from a numerical code written in Matlab. After numerical validation of the proposed model, the comparative analysis in static and dynamic regimes linked to solar radiation shows that green NPs present not only differentiated positive but also negative effects on thermal performance depending on the base fluids compared to conventional NPs, and that the combination of green nanoparticles with high thermal capacity base fluids presents more positive than negative thermal effects. The impact of conventional NPs is more significant with water, at around 0.005 MWh, than with Syltherm 800, which averages around 0.002 MWh. The use of HTF configurations based on Syltherm 800 increases production by around 1 MWh more than that of water. HTF configurations based on Syltherm 800 generate around $0.004/kWh less than water on average. HTFs based on Syltherm 800 produce around 7.5 kgCO2/year more than water. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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