Version
Document Title
Release Date
02
Narrow Body EL2.1 (REV. A)
–
Owner's Manual
2021-03-22
EL 2.1 -
Owner’s
Manual - Rev.02
–
Mar 2021
34
Put a number between 60 and 100 in order to set the production rate to a desired production
percentage (60%-100%). Then click on the button "Create Command".
Attention:
Please note that if a lower value is set (for example 50), the production rate
will be set at the minimum possible value (60%).
Ramp Up
The ramp up time of the AEM Electrolyser depends on the electrolyte temperature (the ramp up is
slower at cooler temperatures and quicker in warm temperatures). Typically, the system will start
with a hydration period of 60 seconds, and then ramp up to the nominal production rate with the
following values:
•
Warm-up time (time taken for the EL to heat up):
The electrolyte working temperature in
the AEM Electrolyser is 55°C. The Electrolyser can usually reach a heating ratio of 1 °C/min,
at 55°C reaches maximum efficiency. For example, if we start the machine with an
electrolyte temperature of 25°C it will take about 30 min to be fully operational and perform
at its maximum efficiency.
•
Ramp up time (time to reach nominal production rate):
Usually, the 500 NL/hr production
rate is reached in about 2/3 of the total warm-up time (the warm up time is 30 min, so if you
start at 25, you will need 20 min to reach max production rate).
•
Build pressure time:
When the system starts and the Electrolyser starts to heat up, the
hydrogen production starts immediately, and the maximum production rate is reached later.
With standard set-points, the pressure is completely built in 1/6 of the total warm up time (if
you start at 25 °C, then the warm-up time is 30, so you need 5 min to build pressure).
During ramp up, the system performs periodical purges to guarantee high purity H2 on the
outlet, as well as to release condensed water from the produced H2.
