instructor experiment guide1

8/14/2019 Instructor Experiment Guide1

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Heliocentris Energiesysteme GmbH

Hy-ExpertTM

Instructor

Fuel Cell System

Experiments GuideIncluding Components Description


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Experiments guide and components description for the Hy-ExpertTM

Instructor Fuel Cell System

5th Edition, September 2005

Copyright 2005 Heliocentris Energiesysteme GmbH

All rights reserved. These manual and individual parts thereof are protected by copyright. Allexploitation, duplication or photocopying is prohibited except in cases permitted by law.

Components of the hy-ExpertInstructor Fuel Cell System are protected by patent applicationsand/or registered designs.

Head office:

Heliocentris Energiesysteme GmbH

Rudower Chaussee 29

12489 Berlin

Germany

Tel. (+49 30) 63 92 63 26

Fax (+49 30) 63 92 63 29

[email protected]

www.heliocentris.com

North American customers contact:

Heliocentris Energy Systems Inc.

3250 East Mall

Vancouver, BC

Canada V6T 1W5

Tel. 604 827 5066

Fax 604 827 5069

[email protected]

www.heliocentris.com


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General notes

Heliocentris Energizing education

General notes

Heliocentris Energiesysteme GmbH provides this documentation to facilitate the safe andcorrect use of the hy-ExpertTMInstructorfuel cell system. All statements, technical informationand recommendations in this documentation and accompanying documents are believedreliable, but the accuracy and completeness thereof are not guaranteed or warranted. Theyare not intended to be, nor should they be understood to be, representations or warrantiesconcerning the products described.

The following Components Description is a brief version of the hy-ExpertTM InstructorOperation Guide. It is intended to assist while operation under the supervision oftrained personnel and does not replace the Operation Guide. Before operating this fuelcell system, please make sure to read and understand the information of the hy-ExpertTM InstructorOperation Guide. If you have questions, please contact HeliocentrisEnergiesysteme GmbHor your supplier.

The hy-ExpertTMInstructorfuel cell system has been sold subject to the limited warranties setforth in the warranty statement. Further, Heliocentris reserves the right to make changes inthe specifications of the products described in this manual at any time without notice andwithout obligation to notify any person of such changes.


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Table of contents


Table of contents

A: Operating References

A.1 Warnings and safety references

A.2 Product overview

A.3 Fuel Cell Module FC50

A.4 Electronic Load Module EL200

A.5 Voltage Converter Module VC100

A.6 Traffic Light Module TL10

A.7 Control software

A.8 Hydrogen supply option I: Connection set for compressed hydrogen

cylinders

A.9 Hydrogen supply option II: Metal hydride storage with refilling kit

A.10 Hydrogen supply option III: Hydrogen generator with metal hydride

storage

B: Technical basics and didactics

B.1 Learning objectives

B.2 Teaching references and methodology

B.3 Recommended web sites

B.4 References for further reading


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A.1 Warnings and Safety References 1


A.1 Warnings and Safety References

1 Symbols used in this guide

The following symbols are used in the Experiments Guide to indicate warnings and specific

dangers:

WarningIndicates a potentially dangerous situation. Serious injuriescan occur if this reference is ignored.

Warning Indicates danger of explosion.

Warning Indicates danger from rotary parts.

Warning Indicates danger of short-circuits or electrical shock.

Prohibition No open fire!

Prohibition Smoking prohibited!

Prohibition Do not attempt to extinguish with water!

ReferenceDraws attention to application tips and other usefulinformation. This is not a reference to dangerous situations.

Indicates highly flammable material.


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2 Warnings and Safety References A.1


2 General Warnings and Safety Instructions

The hy-Expert

TM

Instructorfuel cell system has been developed and manufactured accordingto recognized technical regulations and is tested for function and safety before delivery.

The hy-ExpertTMInstructorfuel cell system is a laboratory instrument designed foroperation by trained personnel in education and research. The hy-ExpertTMInstructoris not a "consumer-oriented" product, whose appropriate operation is generallyknown and which is protected against operation errors or inappropriate use. Improperoperation or abuse can lead to dangers to the health of the operator, the fuel cellsystem itself and other property items.

The Fuel cell system produces low voltage electricity by converting hydrogenelectrochemically. The hydrogen is stored in pressurized cylinders, a metal hydride tank, orgenerated by a special hydrogen generator.

The operating and maintenance conditions laid down in these Components Descriptionsmust be observed. If the hy-ExpertTMInstructorfuel cell system is passed on to a third party,the Operating Instructions must also be passed on.

3 Restricted use

The hy-ExpertTMInstructorfuel cell system and its components may only be used forexperimentation, demonstration or research purposes. All other uses are not intended andtherefore prohibited.

For safety reasons, unauthorized modifications or changes to the system or itscomponents are prohibited. The parts and components of the system may not bedisassembled. In particular, all gas components, such as the gas fittings or themounting bolts of the fuel cell stack must not be loosened, since this can causehydrogen leakage.

4 Sources of danger

Source of danger Possible consequences Precautions

Use of hydrogen Fire and danger of

explosion

Avoid open fire and smoking in the

vicinity.

Avoid electrostatic charges.

Wrong polarity whenmaking electrical

connections

Danger of short-circuits Make sure to have the correctpolarity when making the electrical

connections.

Rotating parts of thecooling fans

Danger from rotating parts Do not put your fingers or otheritems into the fan housing.


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A.1 Warnings and Safety References 3


5 Authorized operators

Anyone setting-up, operating or maintaining the hy-ExpertTMInstructorfuel cell system mustbe aware of applicable local industrial health and safety regulations. Measures must be takento prevent unauthorized persons installing, operating or maintaining the system.

In education, the hy-ExpertTMInstructorfuel cell system may only be used by students underthe supervision of teaching staff. As the teacher you must ensure proper handling of thesystem. You have an obligation to draw attention to potential dangers. Installation, start-up,shut-downand if necessary, maintenanceof the hydrogen supply as well as fillingthe metal hydride storage device may be done only through the teaching staff.

6 Workplace

The hy-ExpertTMInstructorfuel cell system is intended for installation and operation ina suitable laboratory area. In particular, the room must be equipped with an effective air-evacuation system that prevents the formation of explosive hydrogen-air mixtures in theevent of any uncontrolled escape of hydrogen. Measures must also be taken to avoidelectrostatic discharge.

Local safety regulations that apply at the installation site must be observed. Thisapplies in particular to the use and storage of hydrogen compressed gas cylinders that arenot part of the supplied system.

The fuel cell system must be installed on a stable, horizontal and solid base; it must stand

firm.The catalysts and membranes of the fuel cell are sensitive to dust and reactive chemicals,e.g. H2S and other sulfur compounds, carbon monoxide, ammonia, chlorine compounds,solvents, etc. The system must therefore not be set up, operated or stored in rooms wherethere is a risk of exposure to these substances.

The permissible working temperature is between +5 C and +35 C.


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4 Warnings and Safety References A.1


7 Safety information about using hydrogen

Hydrogen is a highly flammable gas. Users must take care to ensure that hydrogen is not allowed to collect in an

enclosed or unventilated area, which would cause a flammability hazard

Avoid heat in the area surrounding the fuel cell system and hydrogen source.

Smoking and open flames are forbidden.

Measures must be taken to avoid electrostatic charge.

In addition to its fire danger, hydrogen if allowed to collect in an enclosed or unventilatedarea can displace oxygen, thereby creating a risk of asphyxiation. The operator must ensurethe following safety precautions are met:

Adequate ventilation of the laboratory area

Proper installation of the hydrogen equipment

Regular examination of the hydrogen piping and connections for leaks.

8 Safety precautions in an emergency

Significant hydrogen escape:

Do not operate electrical devices, light switches, etc. as an explosive gas mixturecould be present in the area.

Immediately shut off the hydrogen source.

Provide adequate ventilation to clear the affected area.

Fire or explosion:

Immediately shut off the hydrogen source.

Report the fire and follow the fire response procedures for your laboratory.

Leave escaping hydrogen to "burn down". The flame of burning hydrogen is notvisible!

Use a class D fire extinguisher or dry sand to extinguish burning metal hydridepowder. Do not use water or CO2 extinguishers. If smoldering metal hydridepowder cannot ignite adjacent materials, it may be best to leave the hydride burning.

Other emergencies not involving hydrogen escape:

Immediately switch off the FC50, remove its hydrogen connecting tube and if necessaryclose the valve of the compressed hydrogen cylinder or the metal hydride storage canister.

instructor experiment guide1

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