TY - JOUR
T1 - An integrated MEMS infrastructure for fuel processing
T2 - Hydrogen generation and separation for portable power generation
AU - Varady, M. J.
AU - McLeod, L.
AU - Meacham, J. M.
AU - Degertekin, F. L.
AU - Fedorov, A. G.
PY - 2007/9/1
Y1 - 2007/9/1
N2 - Portable fuel cells are an enabling technology for high efficiency and ultra-high density distributed power generation, which is essential for many terrestrial and aerospace applications. A key element of fuel cell power sources is the fuel processor, which should have the capability to efficiently reform liquid fuels and produce high purity hydrogen that is consumed by the fuel cells. To this end, we are reporting on the development of two novel MEMS hydrogen generators with improved functionality achieved through an innovative process organization and system integration approach that exploits the advantages of transport and catalysis on the micro/nano scale. One fuel processor design utilizes transient, reverse-flow operation of an autothermal MEMS microreactor with an intimately integrated, micromachined ultrasonic fuel atomizer and a Pd/Ag membrane for in situ hydrogen separation from the product stream. The other design features a simpler, more compact planar structure with the atomized fuel ejected directly onto the catalyst layer, which is coupled to an integrated hydrogen selective membrane.
AB - Portable fuel cells are an enabling technology for high efficiency and ultra-high density distributed power generation, which is essential for many terrestrial and aerospace applications. A key element of fuel cell power sources is the fuel processor, which should have the capability to efficiently reform liquid fuels and produce high purity hydrogen that is consumed by the fuel cells. To this end, we are reporting on the development of two novel MEMS hydrogen generators with improved functionality achieved through an innovative process organization and system integration approach that exploits the advantages of transport and catalysis on the micro/nano scale. One fuel processor design utilizes transient, reverse-flow operation of an autothermal MEMS microreactor with an intimately integrated, micromachined ultrasonic fuel atomizer and a Pd/Ag membrane for in situ hydrogen separation from the product stream. The other design features a simpler, more compact planar structure with the atomized fuel ejected directly onto the catalyst layer, which is coupled to an integrated hydrogen selective membrane.
UR - http://www.scopus.com/inward/record.url?scp=51649100554&partnerID=8YFLogxK
U2 - 10.1088/0960-1317/17/9/S08
DO - 10.1088/0960-1317/17/9/S08
M3 - Article
AN - SCOPUS:51649100554
SN - 0960-1317
VL - 17
SP - S257-S264
JO - Journal of Micromechanics and Microengineering
JF - Journal of Micromechanics and Microengineering
IS - 9
ER -