ElectroChem’s Ultima™ gas management unit multiplies the power of the PowerStation™ to enable fuel cell and electrochemical testing to an efficient level. Designed for PEM, alkaline, and phosphoric acid fuel cells, it provides added capacity for 4 more single cells and fuel cell stacks. For those faced with extensive fuel cell testing requirements, there is no more advanced system, and no safer system for unattended operation. Only sold with the PS-Ultima™ System Controller.

Key Features:

• Gas management multiplier of the CompuCell™ Module
• Precision automated gas supply, humidification and effluent management
• Convenient front panel access to manual controls and output and return gas fittings
• Safety designed in through hardware features and software control

Ultima System Picture

Gas flow control:

Ultima Gas Flow

 

Temperature- and humidification control:

Ultima System Control Schematic

 

Specification:

Pressure:
Max. operating pressure 50 psig (approx. 4,5 bar)
Humidifiers (each):
100 % saturation at 75 °C for input gas flow of 2000 ml/min.
2 liter water bottles (max. fill capacity 1,6 liters)
MFCs:
Full scale ranges available: 10 to 20000 sccm
Control range: 2 % to 100 % of full scale
Accuracy: +/-1 % of full scale
Repeatability: +/-0,2 % of full scale
Resolution: 0,1 % of full scale
Wetted materials: 316L SS, Viton™, Nickel
Physical characteristics:
20 3/4 ” x 28 1/2 ” x 23″ (w x h x d); 53 x 72 x 58 cm
180 lbs. (82 kg)
Gas connections: (Ultima™ gas management unit only)
1 / 4 ” Swagelok™ tubing connectors
front panel:
Output humidified reactant gases to fuel cell 8
Reactant return gases from fuel cell 8
Ports for refill of humidifier bottles 8
rear panel:
Input reactant gases (accomplished through CompuCell™)* 2
Input purge gas (accomplished through CompuCell™)* 0
Output venting of reactant gases 2
Electronic load:
Power: 800 W (also available 2000 W or 4000 W)
Selectable voltage: 0 – 10, 0 – 20 and 0 – 50 V
Selectable current: 0 – 2, 0 – 20 and 0 – 150 A
Constant current and voltage mode:
• Accuracy: ± 0,25 % of full scale for med/high ranges
± 0,50 % of full scale for low range
• Resolution: 1/4000 of full scale
Constant power mode:
• accuracy: ± 3 % of full scale for all ranges
• resolution: 0,25 % of full scale
Electric requirements:
All power and control connections provided by PowerStation™ Control Unit*

 

* The Ultima™gas management unit is designed to operate in conjunction with the CompuCell™gas management unit. Detailed specifications on the CompuCell™ are provided in separate literature available from ElectroChem.

Detailed Ultima Specifications:

PS-Ultima™ – Electronic Load:

• power: 800 W (8″ x 5,25″ x 22″, w x h x d; approx. 40 kg)
• selectable voltage: 0 – 10, 0 – 20 and 0 – 50 V
• selectable current: 0 – 2, 0 – 20 and 0 – 150 A
• constant current and voltage mode:
- accuracy: ± 0,25 % of full scale for med/high ranges
± 0,50 % of full scale for low range
- resolution: 1/4000 of full scale
• constant power mode:
- accuracy: ± 3 % of full scale for all ranges
- resolution: 0,25 % of full scale
• digital front panel display
• convenient front panel connection
• digital interface via IEEE-488

 

Ultima image 6
• Temperature measurements via 5 front panel, temperature sockets Type K

Typical Heater Assignments

Introduction2

• FC # 1 Heater 1
• FC # 4 Heater 4
• FC # 2 Heater 2
• FC # 5 Heater 5
• FC # 3 Heater 3 Front Panel Off/On Switch (Panic Button)

PowerStation™ – Computer:

Key Features:

• PowerStation™ software installed
• free upgrades and support
• provides digital and analog control and data acquisition from all integrated peripherals
• visual display of real time data and system status
• network compatible via Ethernet

Specifications:

• Pentium™ Computer
• 4 digital interface cards factory installed
• 4 customized cables to interface module
• Ethernet network interface supported
• 15″ Monitor
• Windows XP Pro™ operating system
• Microsoft Office™ Basic
• 110 V or 220 V operation

 

Ultima Software Image

PowerStation Ultima™ – Software:

• Independent humidification for each of 10 reactant lines
• Independent mass flow control for each of 10 reactant lines
• Independent temperature control for each of 5 fuel cells
• Safety criteria independently selected for all reactant lines and temperatures

 

Integrated Software for Safety and Flexibility: Key Software Features:
• On Windows™ – based software
• Integral to the PowerStation™
- Not based on general purpose lab test software
- Not adapted from battery test
- Not modified from a 3rd party product
• Safety designed in – for unattended operation
• Simple – for the novice user
• Flexible – for professional fuel cell R & D needs
• complete 5 cell control
• complete 5 cell data acquisition
• quick and easy test configuration
• real time graphic data output
• user friendly graphic user interface
• two stage software structure reduces dangerous user input errors
• continuous data logging

 

Ultima image 9

Cell Configuration:
• define fuel cell characteristics based on real properties such as active area and number of cells
• define gas flow conditions in convenient measures such as stoichiometric ratio and ml/min.
• select gas lines to be used
• present purge conditions for end of test
• enable temperature controls for cell heaters, gas line heaters and humidifiers • enable temperature and pressure safety controls

Ultima Screen Images
Ultima Screen Images 2

Ultima Screen Images 3

System Configuration:
allows long term compatibility with multiple modules:
• CompuCell™ – 2 humidified reactants
• Ultima™ Module – 8 humidified reactants
• DMFC™- Direct Methanol Unit PS-DM
• GTL – heated gas supply lines

Ultima Screen Images 4

 

Setup-Flow Control:

• enable all or only some of the 10 gas channels
• user defined gas correction factor allows users to select new gas mixtures

 

 

Ultima Screen Images 5 - TemperatureSetup-Temperature:

• select thermocouples to use
• use measurements for logging, and/or control
• select PID controller algorithm characteristics to match heater requirements

Setup-Pressure:
• backpressure transducers monitoring active pressure to sense leaks and activate safety shutdown
• user selects shutdown criterion

Ultima Set up Load Image 1


Setup-Electronic Load:

• expand electronic load capacity by adding an optional secondary load
Ultima Set Up Load Image 2
Ultima Graph 1

Fixed, load following and combination gas flow control options
a) fixed flow
b) stoichiometric load following
c) fixed minimum plus load following

Very Wide Flexibility in Load Control Sequences:
• stepped, ramped, constant load control
• simulates real-world power applications
Ultima Graph 2