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ASME PTC 50 Document Information:
Title
Fuel Cell Power Systems Performance
ASME International
Publication Date:
Nov 29, 2002
Scope:
OBJECT AND SCOPE
This Code applies to all fuel cell power systems regardless of the
electrical power output, thermal
output, fuel cell type, fuel type, or system application.
Fuel cell power systems contain an assembly of electrochemical cells,
which oxidize a fuel to
generate direct current electricity. Balance-of-plant subsystems may
include controls, thermal
management, a fuel processor and a power conditioner. Some fuel cell
power systems may contain
additional power generating equipment such as steam generators, gas
turbine generators, or
micro-turbine generators. The net power output and all the fuel input
to the system shall be taken
into account in the performance test calculations.
This Code applies to the performance of overall fuel cell power
systems. The Code addresses
combined heat and power systems, that is, the generation of
electricity and usable heat at specific
thermal conditions. It does not address the performance of specific
subsystems nor does it apply to
energy storage systems, such as regenerative fuel cells or batteries.
It also does not address
emissions, reliability, safety issues, or endurance.
This Code contains methods and procedures for conducting and reporting
fuel cell system testing,
including instrumentation to be used, testing techniques, and methods
for calculating and reporting
results.
The Code defines the test boundary for fuel and oxidant input,
secondary energy input and net
electrical and thermal energy output. At these boundaries, this Code
provides procedures for
measuring temperature, pressure, input fuel flow and composition,
electrical power, and thermal
output.
The Code provides procedures for determination of electrical
efficiency or heat rate and overall
thermal effectiveness at rated or any other steady-state condition.
The Code also provides the
method to correct results from the test to reference conditions.
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