RNEW 310 Renewable Energy Engineering Assignment

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Reference no: EM132689274

RNEW 310 Renewable Energy Engineering - Alfred University

Project for fuel cell

Model within an excel spreadsheet a solid oxide fuel cell that uses hydrogen gas and air as reactants to produce water and energy in the forms of electricity and heat.

A - Starting with reactants, hydrogen and oxygen gas, and product water/water vapor, whose properties dependent upon temperature, calculate the Gibb's free energy of each (hydrogen, oxygen and water//water vapor) for the temperature range 300 K to 1500 K in increments of 20 K. Also, determine the maximum thermodynamic EMF (electromotive force in volts) and maximum efficiency for each temperature of operation. Use an excel spreadsheet and show the calculations for each (entropy, enthalpy, Gibbs energy, efficiency, EMF) as a function of temperature plot the data.

B - From the table below, consider using a particular metal within your fuel cell (for electrodes and activation). Discuss why you may or may not consider utilizing each one. Think in terms of possible reactions (the depletion of metal), as well as trade-offs in economics (cost), efficiency and fuel cell lifetime. Which material(s) would you choose?

C - From the resistivity table below and from the ionic diffusivity parameters from the graph attached

D - Determine the concentration losses

E - Next use results from A - D to determine the operating voltage of the fuel cell as a function.

Attachment:- Renewable Energy Engineering.rar

Reference no: EM132689274

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