doi:10.1016/j.ijhydene.2013.07.015engRomero-Pascual, E.Soler, J.Modelling of an HTPEM-based micro-combined heat and power fuel cell system with methanolART-2014-85416A 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.2014http://zaguan.unizar.es/record/15155510.1016/j.ijhydene.2013.07.015http://zaguan.unizar.es/record/151555oai:zaguan.unizar.es:151555International Journal of Hydrogen Energy 39, 8 (2014), 4053-4059by-nc-ndhttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.esinfo:eu-repo/semantics/openAccess