heliocentris commercial confidential 1 integration of industrial fuel cells in technical...

Heliocentris Commercial Confidential 1

Integration of Industrial Fuel Cells in Technical ApplicationsUsing the NEXA®Training System

Dr. Claus Fischer & Ralph Schanz

HELIOCENTRIS Energiesysteme GmbH

Berlin / Germany


• Founded in 1995

• Pioneer in fuel cell education

• Based in Berlin (Germany) / office in Vancouver

• Leading supplier of fuel cell training systems to

Universities, Research Institutes and Science Centres

with over 35.000 units sold to 50 countries

Heliocentris


School education• Science kits

• Lesson material

• Outreach programs

Heliocentris - An educational companyPost secondary education

• Lab products

• Training systems

• Fuel cell and hydrogen components

• System integration service


• Rapidly emerging industry using fuel cells as replacement of conventional batteries (vehicles, off-grid power supply)

• High demand of R&D, particularly in fuel cell integration

• Lack of experience on industrial fuel cell systems (kW)

• Training necessary to improve implementation skills for fuel cells in own applications

Today´s Challege on Fuel Cell Integration


Based on an industrial 1.2 kW Fuel Cell Module (NEXA®)

The NEXA® Training System


Fuel Cell Module

• Nexa® Power Module 1.2 kW

• Unregulated DC output 22..48 V / Nominal 24 V

• Rated Current: 46 A

• Pressure 0.7- 17 bar (10..250 PSIG)

• Quick coupler & integrated flow meter


• Start-up kit included – ready to use

• In-built system control

• Complete safety monitoring

• Easy system integration

• Long life time at extended run times

• Reliable operation (No. 1 fuel cell in universities)

Fuel Cell Module

Advantages of the NEXA® Power Module


NEXA Accessories


Energy Management Module

• DC/DC converter (24 V)

• Battery charger with Start- and Back-up Batteries

• Batteries 24 V (2 different capacities plus external battery option)

• DC/AC Inverter (230 V)

26...48 Vdc

Power IN

IIN IOUT ILOAD

IBATDC OUT 230 Vac OUT

Relay --

++

21...30 Vdc

N

22...30 Vdc 230 Vac

~~

A AA

A

DC/DC Converter DC/AC Inverter

Battery


DC Electronic Load

• Max Power 1500 W

• Fully computer programmable adjust load profiles

Computer, Monitor & Training Software


• The stable conditions for operation

• Which fuel cell size is requested

• How to optimize the battery capacity vs. hydrogen capacity

• How climatic conditions effect fuel cell operation

• How the system responds on a selected load profile


Learn step by step:


• Flow Chart

• Power Chart

• Time Chart


Real time MonitoringFC-VoltageFC-CurrentH2 /O2 -ConcentrationHydrogen consumptionTemperaturePressure H2

Battery-VoltageMass flow O2

FC-TemperatureVoltage Purge Cells Run Time FC-SystemRun Time Fuel Cell

• Flow Chart

• Power Chart

• Time Chart


Versatile in Use: Four Examples

• Electrical Engineering

• Physical / Mechanical Engineering

• Energy Engineering

• Application Engineering

• Product and Prototype Development



1) Evaluation of Suitable Power Electronics

• Need for power electronics

• Set up a hybrid system

• Analyse the design

• Adapt to special applications


2) Evaluation & Design of a Battery Power Management

• Need for batteries

• Charging and discharging

• Selection of battery types

• Optimize the parameters



3) Design of an Off-grid Power Supply • Set-up and operation of a fuel

cell hybride (2 kWpeak/1 kWcont)

• Ohmic and inductive loads

• Power quality analyses

• Final prototype design



4) Development of Fuel Cell Powered Vehicles

• Design and construction of a car

• Proper Selection and adjustment of a suitable motor, buffer battery etc.

• Optimizing the power management

• Improve interaction of all system components



Conclusion and Outlook

Further information and contact:www.heliocentris.com

• The Nexa® Training System is a valuable tool for complex fuel cell engineering tasks and for fuel cell integration.

• The system response on various load profiles of a fuel cell hybrid system can be investigated.

• Electrical components of an own application can be defined and optimized (ideal for prototype design).


Instructor


Instructor – the Fuel Cell Stack System for Training

• 50 watts fuel cell stack

• Safe hydrogen supply solutions (Gas

cylinders, hydride storage tanks or

electrolyser solutions)

• Complete educational material included

(Experimentation handbook,

experimentation and display software,

interactive CD-ROM with learning

modules)


Fuel Cell System

- H2 connection and flow meter - 50 W air cooled fuel cell stack- Temp. sensor- Single cell control- Purge magnet valve

DC/DC-converter

-DC/DC converter

-Start battery

Hydrogen supply

- Hydrogen connection- Pressure reducer- Pressure gauge - Safety magnet valve

Instructor


Parameter Control and Set ModeInstructor


Voltage

Current

Fan PowerH2-Consumption

Temperature

Instructor Parameter Monitoring Mode


Effect of Temperature

25°C

45°C

Experiment 1: Factors effecting the characteristic curveInstructor


Input Power: 77 W

Stack Power: 40 W

Usable Power: 26 W

Stack = 0,52

System= 0,34

Instructor Experiment 2: “Usable Power”


INVITATION:

Please visit us at HANNOVER FAIR 21-25 April in Germany (Hall 13, Stand E40/1).Large Fuel Cell Exhibition

Tessekürler

heliocentris commercial confidential 1 integration of industrial fuel cells in technical...

Documents

fuel cell educationbased

operationwhich fuel

dc electronic loadmax

stable conditions

load profilescomputer

battery capacity

kwunregulated dc output22

wfully computer programmable