Off-design analysis of SOFC hybrid system

Residential Solid Oxide Fuel Cell Generator Fuelled by Ethanol: Cell, Stack and System Modelling with a Preliminary Experiment

“…The water/ethanol ratio has been set in order to operate the system in safe conditions towards the carbon Deleted: /…in-stack Deleted: imposed …to be …reforming required …for a NG…feeding than for an… feeding…aspect …fully evident in… …4.7 instead …of …with NG Deleted: In terms of the ethanol fuel mixture…, t…chosen …with respect to…carbo ... [24] ... [23] ... [20] ... [21] ... [22] ... [26] ... [19] ... [25] ... [27] Page 25 of 90 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 Figure 11, using the CEA chemical equilibrium software [24], the mixture equilibrium composition as a function of temperature are plotted for a liquid volumetric EtOH/H 2 O ratio of 60/40 (the ratio shifts to 33.3/66.7 with the species in the gas phase). The graph shows how the water content in the mixture is already enough to suppress carbon deposition at temperatures above 600 °C.…”

“…Notably are those reported in [19][20][21][22][23][24][25]; among these, only Riensche et al [19,20], Marsano et al [21], Milewski et al [22] and Campanari [23] have included an ejector model in their simulations. Of these, just…”

Efeito da adição de óxido de zinco e de óxido de boro nas propriedades do zirconato de bário dopado com ítrio

“…Uma célula a combustível é um dispositivo eletroquímico que transforma a energia química de um combustível em energia elétrica [8,9]. Uma célula a combustível unitária é formada por três elementos básicos: o eletrólito condutor de íons, o anodo e o catodo [4,9].…”

Recent key technical barriers in solid oxide fuel cell technology

“…They display a multifuel capability (hydrogen, carbon monoxide, methane, syngas [5], renewable biogas [1,6], etc. ), may play a role in carbon sequestration strategies [7], and may render the highest electricity generation efficiency in power station design if combined with a gas turbine [8]. SOFCs and MCFCs (molten carbonate fuel cells) [9] offer the potential for higher power efficiencies and lower emissions.…”