期刊
SOLAR ENERGY
卷 110, 期 -, 页码 64-70出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.solener.2014.09.003
关键词
Carbon nanotubes; Phase change materials; Thermal properties; Thermal energy storage
资金
- Natural Science Foundation of China [51378426]
- Program for New Century Excellent Talents in University of Ministry of Education [NCET-11-0714]
- Open Research Fund of Key Laboratory of Green Building and Energy Conservation, Xihua University [SZJJ2012-045]
- Fundamental Research Funds for the Central Universities [SWJTU12CX007]
The effect of carbon nanotubes (CNTs) on thermal behavior of palmitic stearic acid binary eutectic mixture (PA-SA) was investigated experimentally. Four samples of PA-SA/CNTs composite phase change materials (PCMs) with mass fractions of CNTs of 5-8 wt.% at an increase of 1 wt.% were prepared. The thermal properties of the PA-SA/CNTs composite PCMs characterized by Differential Scanning Calorimeter indicated that the phase change temperatures and latent heats of the composites changed slightly as the change of the mass fraction of CNTs. The thermal conductivities of the PA SA/CNTs composite PCMs increased by 20.2%, 26.2%, 26.2% and 29.7% respectively when the mass fractions of CNTs were 5 wt.%, 6 wt.%, 7 wt.% and 8 wt.%. The thermal performance test results showed that the thermal release rate of the prepared composite PCMs increased due to the addition of CNTs while the storage rate decreased. Thermal cycling test results revealed that the PA-SA/CN'Ts composite PCMs performed well in thermal reliability. (C) 2014 Elsevier Ltd. All rights reserved.
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