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Technical Brief

Performance of Carbon Nanotubes–Water Nanofluid Charged Wickless Heat Pipe Flat Plate Solar Collectors Having Different Filling Ratio

[+] Author and Article Information
Sandesh S. Chougule

Research Scholar
Discipline of Mechanical Engineering,
Indian Institute of Technology,
Indore, M.P. 453446, India
e-mail: sandesh_chougule@yahoo.com

S. K. Sahu

Mem. ASME
Assistant Professor
Discipline of Mechanical Engineering,
Indian Institute of Technology,
Indore, M.P. 453446, India
e-mail: santosh.sahu04@@gmail.com

1Corresponding author.

Contributed by the Solar Energy Division of ASME for publication in the JOURNAL OF SOLAR ENERGY ENGINEERING: INCLUDING WIND ENERGY AND BUILDING ENERGY CONSERVATION. Manuscript received February 23, 2014; final manuscript received September 24, 2014; published online October 23, 2014. Editor: Gilles Flamant.

J. Sol. Energy Eng 137(2), 024501 (Oct 23, 2014) (4 pages) Paper No: SOL-14-1072; doi: 10.1115/1.4028701 History: Received February 23, 2014; Revised September 24, 2014

An experimental study was carried out to investigate the thermal performance of solar heat pipe collector at outdoor test condition. The thermal performance of wickless heat pipe solar collector was investigated by using CNT–water nanofluid. Carbon nanotubes (CNT) nanoparticles with diameter 10–12 nm and 0.1–10 μm length were used in the present experimental investigation. The effects of various filling ratio (F.R.) (50%, 60%, and 70%) and coolant flow rate on thermal performance were discussed in this study.

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References

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Figures

Grahic Jump Location
Fig. 1

Thermosyphon solar collector

Grahic Jump Location
Fig. 2

Effect of F.R. on heat gain (Qg) of wickless solar heat pipe collector

Grahic Jump Location
Fig. 3

Comparison between efficiency curves with different F.R. for solar heat pipe collector at ASHRAE standard coolant flow rate

Grahic Jump Location
Fig. 4

Comparison between efficiency curves at different cooling mass flow rates

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