Methanol Fueled High Temperature PEM Fuel

Methanol Fueled High Temperature PEM Fuel

Methanol Fueled High Temperature PEM Fuel Cell Auxiliary Power Unit
M. F. Jensen, M. Sorensen, L. Ashworth
SerEnergy in short…
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Located in Hobro, Denmark
Established 2006
25 employees
500 kW shipped
Privately owned
– Founders
– Fischer Group GmbH
HT PEM
• High operational temperature
(120-180° Celsius) gives you
the benefit of:
– High CO tolerance. High Sulfur
tolerance +5 PPM
– Simple reformer integration
– Cooling at high temperatures
– No water management
HT PEM
HT PEM modules
• Serenus 166 Air C – 1 kW
• Serenus 390 Air C – 3,2 kW
• Serenus 25/65/120 Liquid C - 1-6 kW
Reformed Methnaol Fuel Cell
Regulated DC
DC/DC
Unregulated DC
Excess Gas
Fuel cell
H2 rich Gas
Heat
Liquid
Methanol
Evaporator
Vapor
Reformer/
Burner
Exhaust
RMFC topologies
• Air and liquid
H3-350
Weight: 13kg
Max charging power: 350W
Fuel consumption: 0.45l/h
Fuel: 60%MeOH in Water (~12MJ/kg)
10L gives 22 hours of operation (7.7kWh)
Theoretical charging cycle
Charging example
20
30
15
28
26
10
24
5
22
0
20
-5
0
5
10
15
20
25
30
18
16
-10
14
-15
12
-20
10
Time [h]
I-Battery [A]
U-Battery [V]
Battery voltage [V]
Battery Current [A]
Charging cycle obtained
24V battery system in operation
H3 350 - EOL performance
H3 350 start up - EOL
Liquid cooled
S165L015G – 120 Cell Stack
• Stack assembled by the
4th of April.
• Functional tested
• Performance tested on
pure H2, and syngas.
• Pmax > 5kW (nom 4kW –
PaXell)
• Further test will be
conducted to cover:
– Air/fuel distribution
– Pressure drops
– Various stack temp,
fuel gas comp. Etc.
S165L015G Stack Performance
120 Cell HTPEM
90
6
80
5
70
Stack Voltage [V]
50
3
40
2
30
20
1
10
0
0
0
10
20
30 Stack Current
40
[A] 50
60
70
80
Stack power [kW]
4
60
pure H2
syn gas: 24.5%
CO2, 0,5% CO
Stack Power, Pure
H2
Stack power,
SynGas
Energy density VS efficiency
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Diesel
Gasoline
Ethanol
Methanol
Hydrogen
~10 kWh/L
~9 kWh/L
~6 kWh/L
~4,5 kWh/L
~1 kWh/L @ 350bar
Reforming fuels
Can be omitted for high
temperature PEM
Reformer
(650-900C)
HTWGS
(350-450C)
Methanol
LTWGS
(200-250C)
Reformer
(200-250C)
Ultra
purification
Fuel cell
Ultra
purification
Fuel cell
Methanol
• WW market
– 50 Bn liters
– 1250 Bn liter (Gasoline)
Renewable?
– CRI (H2+CO2)
– BioMCN (Glyserin)
– Varmland (Biomass)
Infrastructure
• 1000 L – IBC
• Container type
• Rebuild Gasoline/diesel
• Safety
– As Gasoline/Diesel
– Catching fire?
Hybridization – the power of ”and”
0.5 kW/kg
5 kW/kg
(Power)
2.5 kWh/kg
0.1kWh/kg
(Energy)
Energy
+
Power
=
Solution
System design
Power output: 20,000W
Weight: 120 KG
Volume: 218 L
Power output: 5,000W
Weight: 57 KG
Volume: 104 L
Alternative fuels
System advantages
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Fewer components
Low complexity
High heat rejection
Simple fuel system/fuel storage
Lowest CAPEX on liquid fuels
Component recycling
Outlook
Thank you
This work was supported by the Danish government
through the EUDP program