Study of Thermal Flow Characteristics in Micochannels for Supercritical Hydrogen Fluid Mixtures with Accurate Thermophysical Property Measurements

2016 Fiscal Year Final Research Report

• Project/Area Number: 26420149
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Thermal engineering
• Research Institution: Kyushu University
• Principal Investigator: Sakoda Naoya 九州大学, 工学研究院, 助教 (30532337)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 水素 / 混合物 / 超臨界流体 / 熱物性 / マイクロチャンネル

Outline of Final Research Achievements

The binary fluid system of hydrogen and carbon dioxide shows a divergence of the critical curve, and PVT properties of the mixtures were measured in the supercritical fluid region. A microchannel holder made of polycarbonate for a quartz microchannel was developed to observe flow characteristics in the microchannel, and it is available at high-pressures up to 10 MPa. The microchannel was assembled into the supercritical-fluid observation apparatus, and a hydrogen and carbon dioxide mixture of 0.107 mole fraction of hydrogen was supplied to the microchannel. A flow characteristic of it was observed at 298 K and 7.3 MPa until the mixture reaches the steady state.

Free Research Field

熱工学