Publication: First and Second Law of Thermodynamics—Analysis for Fuel Cells
Date
01-01-2022
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Abstract
Fuel cells are electrochemical conversion devices using fuel and oxidant with no limitation for carnot cycle. Thermodynamics, which is the study of change in energy from one state to another and the fuel cell performance can be predicted using thermodynamic equations. Fuel cell converts the fuel value into electrical energy and also into thermal energy and the ratio varies, depending on the type of fuel cell. The first and Second laws of thermodynamics, helps in writing down the thermodynamic potentials to specify how energy can be transferred from one form to another. This chapter defines how reversible fuel cell voltages, which predicts the fuel cell performance, are affected by departures from the standard state. This chapter also includes enthalpy, entropy, specific heat, Gibbs free energy, net output voltage irreversible losses in fuel cells and fuel cell efficiency.
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Keywords
Efficiency, First law, Fuel cells, Reversible cell voltage, Second law, Thermodynamics