Heat transport control of carbon based phase change nanocomposite by nanostructure design

2016 Fiscal Year Final Research Report

• Project/Area Number: 26289048
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Thermal engineering
• Research Institution: Kyushu University
• Principal Investigator: KOHNO Masamichi 九州大学, 工学(系)研究科(研究院), 教授 (50311634)
• Co-Investigator(Kenkyū-buntansha): 塩見 淳一郎 東京大学, 工学(系)研究科(研究院), 准教授 (40451786)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: ナノカーボン / 相変化材料 / 熱伝導率

Outline of Final Research Achievements

We show that inclusion of graphene nanoplatelets increases the thermal conductivity of phase change material by 120% at a loading of 1 vol%. Comparing the experimental results with the model calculations based on the effective medium theory suggests that graphene based nanocomposites outperforms those with carbon nanotubes or metal nanoparticles reported in the literature. High thermal conductivity, high aspect ratio and low thermal interface resistance at the graphene e host matrix interface makes it the most suitable nano filler candidate to enhance the thermal conductivity of low conductive materials.Differential scanning calorimetry study of the nanocomposites show that the phase change enthalpy and the melting temperature remains similar to that of pristine material, which makes graphene a promising candidate for thermal energy storage applications.

Free Research Field

熱工学