151555 20251017144652.0 doi 10.1016/j.ijhydene.2013.07.015 sideral 85416 ART-2014-85416 eng Romero-Pascual, E. Universidad de Zaragoza (orcid)0000-0001-7814-2277 Modelling of an HTPEM-based micro-combined heat and power fuel cell system with methanol 2014 Access copy available to the general public Unrestricted A fuel cell-based combined heat and power system using a high temperature proton exchange membrane fuel cell has been modelled. The fuel cell is fed with the outlet hydrogen stream from a methanol steam reforming reactor. In order to provide the necessary heat to this reactor, it was considered the use of a catalytic combustor fed with methanol. The modelling aims to fit the hydrogen production to the demand of the fuel cell to provide 1 kWe, maintaining a CO concentration always lower than 30,000 ppm. A system with 65 cells (45.16 cm2 cell area) stack operating at 150 °C and hydrogen utilization factor = 0.9 (with O2/methanol ratio = 2 at combustor; H2O/methanol ratio = 2 and temperature = 300 °C at reformer) needed a total methanol flow of 23.8 mol h−1 (0.96 L h−1) to reach 1 kWe, with a system power efficiency (LHV basis) ca. 24% and a CHP efficiency over 87%. The ability to recycle the non-converted hydrogen from the fuel cell anode to the combustor and to use the heat produced at the fuel cell for obtaining hot water increased the global energy efficiency. info:eu-repo/semantics/openAccess by-nc-nd https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es 3.313 2014 CHEMISTRY, PHYSICAL 43 / 138 = 0.312 2014 Q2 T1 ENERGY & FUELS 25 / 89 = 0.281 2014 Q2 T1 ELECTROCHEMISTRY 7 / 27 = 0.259 2014 Q2 T1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Soler, J. Universidad de Zaragoza (orcid)0000-0001-9022-2835 5005 555 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Ingeniería Química 39, 8 (2014), 4053-4059 Int. j. hydrogen energy International Journal of Hydrogen Energy 0360-3199 253382 http://zaguan.unizar.es/record/151555/files/texto_completo.pdf Postprint 1365904 http://zaguan.unizar.es/record/151555/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:151555 articulos driver 2025-10-17-14:36:48 ARTICLE