Fuel_cell_fundamentals-solutions

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Problem 1.1 (10 points) Possible answers include:
FC advantages over other power conversion devices:
1. Potentially higher efficiency.
2. Solid state components have no moving parts, giving higher reliability
and lower maintenance costs
3. silent operation
4. low emissions
5. fuel cells refuel rather than recharge, which could be faster.
Disadvantages:
1. cost
2. low power density
3. problems of hydrogen storage, production, transport, lower energy
density
4. temperature problems: PEMs can’t start in the cold, high temperatures
of SOFCs create materials, thermal cycling, and sealing problems
5. water management issues in PEMs.
Applications:
1. portable applications (such as laptops, cellphones, etc.) where their
fast refueling, silent operation, and independent scaling of fuel reservoir
and power make fuel cells an attractive option.
2. Transportation applications where their low emissions and high efficiency
makes fuel cells an attractive option.
3. Power generation applications where their silent operation, low emissions,
and high efficiency make fuel cells amenable to siting in cities for
distributed generation (DG) applications, reducing the cost of power
distribution and possibly making process

키워드

fuel cell fundamentals,   solution