Harvesting energy from low-grade heat based on nanofluids
- Title
- Harvesting energy from low-grade heat based on nanofluids
- Author
- Xi Chen
- Keywords
- Energy harvesting; Electrical potential; Low-grade heat; Conversion efficiency; Nanofluids
- Issue Date
- 2012-07
- Publisher
- ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
- Citation
- NANO ENERGY, 권: 1, 호: 6, 페이지: 805-811
- Abstract
- Conventional thermoelectric materials have limited capability of scavenging electrical energy from low-grade heat (LGH). Based on the capacitive effect of liquid-solid interface in a nanoconfinement, we investigate a novel energy harvesting mechanism which is based on the thermally sensitive ion/charge distribution of electrolytes confined in nanopores. The mechanism is elucidated using comprehensive molecular dynamics (MD) simulations. The effective thermal sensitivity, effective figure of merit, and thermal-to-electric energy conversion efficiency of the nanofiuidic system compare favorably with respect to the conventional thermoelectric materials. The result of a preliminary thermal-to-electrical energy conversion experiment on a nanoporous carbon is presented, to qualitatively show the feasibility of the approach. (C) 2012 Elsevier Ltd. All rights reserved.
- URI
- http://www.sciencedirect.com/science/article/pii/S221128551200153X?_rdoc=1&_fmt=high&_origin=gateway&_docanchor=&md5=b8429449ccfc9c30159a5f9aeaa92ffbhttp://hdl.handle.net/20.500.11754/41366
- ISSN
- 2211-2855
- DOI
- 10.1016/j.nanoen.2012.07.013
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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