例题VCE 化学2017 Question 2 VCE化学AOS1|第三、第四部分:Galvanic cells & fuel cell 这两个部分主要的题型是Cell图分析题。考点通常是比较系统化的,涉及的重点有: ➮Writing/balancing half-equation & overall ionic equation of redox reaction (写equation的题) ➮Analysing design features & chemical pro...
Chemical and Process Engineering Department, University of Newcastle upon Tyne, Merz Court, Newcastle upon Tyne, NE1 7RU,, United KingdomJohn Wiley & Sons, Ltd.Fuel CellsArgyropoulos P,Scott K,Shukla A K. Empirical model equations for the direct methanol fuel cell[J].Fuel Cells 2002,2(02)...
equation. For a direct liquid fuel cell, the effect of the change of concentration of the fuel is theoretically calculated by this equation. As was stated in the previous sections, fuel cells are much more efficient than the conventional internal combustion engines theoretically since chemical ...
TheFuel Cellblock models a fuel cell that converts the chemical energy of hydrogen into electrical energy. This chemical reaction defines the electrical conversion: H2+12O2→H2O+heat which occurs due to these anode and cathode half-reactions: ...
Table 1. Major failure modes of different components in solid oxide fuel cell (SOFC) ComponentFailure modeCauses At the cathode side Chemical degradation Cr evaporation Mechanical degradation Corrosion cracking Bipolar plate (or interconnect) Conductivity loss Inner oxidation At the anode side Mechanical ...
while the cell temperature is defined and solved using theHeat Transferinterface. Understanding the entire working of the cell — including the flow, chemical species transport, electrochemical reactions, and heat transfer through the cell — involves various multiphysics phenomena, which are defined usin...
Equation (4) was used for the water volume estimation, VH2O, in a volume V, e.g. anode flow field volume, in a certain tomogram i. Inti and Intdry represent the average grey value intensities of the volumes V in tomogram i and a reference tomogram of the dry fuel cell. IntH2O is...
The model equation is validated against experimental data for a small-scale fuel cell and is applicable over a wide range of methanol concentration and temperatures.关键词: direct methanol fuel cell model performance 被引量: 60 年份: 2003
A fuel cell system consists in a fuel cell stack and auxiliary equipments, which produce electrical energy (and heat) directly from the electrochemical oxidation of a fuel in an elementary electrochemical cell (Fig. 1). From: Electrochimica Acta, 2011 ...
A microbial fuel cell (MFC) is a hybrid bio-electrochemical device that converts the energy stored in chemical bonds in organic compounds to electrical energy through catalytic reactions that occur in microorganisms. From: Metropolitan Sustainability, 2012 ...