MICRO CHANNEL STRUCTURE WITH STRENGTHENED ROUGH SURFACE IN AN ETHANOL REFORMING HYDROGEN GENERATOR
The combination of the hydrogen production from ethanol and microchannel technology can provide a portable hydrogen resource for fuel cell, which will effectively solve the energy and environment problem. This paper introduces a new surface structure – microchannel structure with strengthened rough surface (MCSWSRS) which has a feature of strongly transferring heat in microchannel. The MCSWSRS depends not only the dimension effect of this structure but also the special rough surface to strengthen heat transmission, so MCSWSRStransfers more heat than the smooth structure. Based on the heat strengthening transmission mechanism of MCSWSRS and the microchannel theory, a new kind of microchannel reactor was built and its heat strengthening transmission property has been analyzed. When the reacting temperature of microchannel reactor was 330 °C and catalyst was Ni/La2O3, properties of MCSWSRS were experimented in the system of hydrogen from steam reforming of ethanol. The experimentation shows that hydrogen production efficiency of this microchannel reactorwith MCSWSRS was 9％ higher than that of the fixed bed tube reactor under the same reacting conditions. The results show that the MCSWSRS in reactor is feasible and advantageous in practice.
microreactor hydrogen generator surface structure heat transfer ethanol
SU Dashi TANG Yong PAN Mingqiang
College Of Mechanical Engineering, South China University Of Technology, Guangzhou 510640,China;Shao College Of Mechanical Engineering, South China University Of Technology, Guangzhou 510640,China
国际会议
海南三亚
英文
2007-01-10（万方平台首次上网日期，不代表论文的发表时间）