LEC IEC 62282-7-2 Edition 1.02021-05 INTERNATIONAL STANDARD Fuel cell technologies Part 7-2: Test methods - Single cell and stack performance tests for solid oxide fuel cells (SOFCs) IEC 62282-7-2:2021-05(en) IEC IEC 62282-7-2 Edition 1.02021-05 NTERNATIONAL STANDARD Fuel cell technologies - Part 7-2: Test methods - Single cell and stack performance tests for solid oxide fuel cells (SOFCs) INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 27.070 ISBN 978-2-8322-9805-3 Warning! Make sure that you obtained this publication from an authorized distributor. ? Registered trademark of the International Electrotechnical Commission IEC 62282-7-2:2021 @ IEC 2021 - 2 - CONTENTS FOREWORD INTRODUCTION 6 1 Scope... 2 Normative references 3 Terms, definitions and symbols. 3.1 Terms and definitions. 3.2 Symbols... 10 4 General safety conditions .. 11 5 Cell/stack assembly unit . 6 Testing system . 12 6.1 Subsystems in testing system ... 6.2 Maximum variation in control items of testing system 7 Instruments and measurement methods 14 7.1 General..... 14 7.2 Instrument uncertainty . 14 7.3 Anode gas. 14 7.4 Cathode gas 7.5 Output voltage ... 18 7.6 Output current.. 18 7.7 Cell/stack assembly unit temperature.. 18 7.8 Mechanical load.. 18 7.9 Total impedance . 18 7.10 Ambient conditions. 19 8 Test preparation, 19 8.1 General.. 19 8.2 Standard test conditions and test range .. 8.3 Components and impurities of anode gas and cathode gas .. .20 8.4 Basis of the test procedure .. 20 8.5 Confirmation of aging conditions of unit ... .20 8.6 Confirmation of criteria of stable state.. .20 8.7 Data acquisition method. 20 9 Test procedure 9.1 Set-up .20 9.2 Initial conditioning .... .21 9.3 Shut-down .21 10 Performance test. .21 10.1 Rated power test... .21 10.2 Current-voltage characteristics test... 10.3 Effective fuel utilization dependency test . .23 10.4 Long term durability test . .24 10.5 Thermal cycling durability test. .25 10.6 Internal reforming performance test . 26 10.7 Resistance components identification test. 11 Test report.. 28 11.1 General... .28