Hybrid Nanofluid in a Direct Absorption Solar Collector: Magnetite vs. Carbon Nanotubes Compete for Thermal Performance
The paper presents the experimental measurements of thermal efficiency of a tubular direct absorption solar collector (DASC) with a hybrid nanofluid based on magnetite (Fe3O4) and multi-walled carbon nanotubes (MWCNT). The volumetric concentration of Fe3O4 and MWCNT was 0.0053% and 0.0045%, respectively. The experiments were carried out for the flow rates of 2–10 L/min and a temperature difference up to 20 ∘C between the environment and the DASC. The performance of the DASC with a hybrid nanofluid was in the range of 52.3–69.4%, which was just beyond the performance of the collector with surface absorption. It was also found that using a MWCNT-based nanofluid with an equivalent total volumetric concentration of particles (0.0091%), the efficiency was 8.3–31.5% higher than for the cases with the hybrid nanofluid.
Top-30
Journals
|
1
2
3
|
|
|
Nanomaterials
3 publications, 23.08%
|
|
|
Journal of Thermal Analysis and Calorimetry
2 publications, 15.38%
|
|
|
Energies
1 publication, 7.69%
|
|
|
Powder Technology
1 publication, 7.69%
|
|
|
Solar Energy
1 publication, 7.69%
|
|
|
Applied Thermal Engineering
1 publication, 7.69%
|
|
|
Energy Science and Engineering
1 publication, 7.69%
|
|
|
Progress in Energy and Combustion Science
1 publication, 7.69%
|
|
|
Scientific Reports
1 publication, 7.69%
|
|
|
Frontiers in Energy Research
1 publication, 7.69%
|
|
|
1
2
3
|
Publishers
|
1
2
3
4
|
|
|
MDPI
4 publications, 30.77%
|
|
|
Elsevier
4 publications, 30.77%
|
|
|
Springer Nature
3 publications, 23.08%
|
|
|
Wiley
1 publication, 7.69%
|
|
|
Frontiers Media S.A.
1 publication, 7.69%
|
|
|
1
2
3
4
|
- We do not take into account publications without a DOI.
- Statistics recalculated weekly.