EXERCISE BIKE ELECTROLYSER AS THE HYDROGEN PRODUCTION SYSTEM MUHAMAD NASIRUDDIN BIN MOHD SAMSI A thesis submitted in the fulfilment of the requirement for the award of degree of Bachelor of Engineering (Chemical) Faculty of Chemical Engineering Universiti Teknologi Malaysia JANUARY 2013
vi ABSTRACT In this study, the exercise bike electrolyser as the hydrogen production system is discussed. The objective of this study is to design and construct a model of exercise bike electrolyser and to analyze the efficiency of the exercise bike electrolyser as the hydrogen production system. The bicycle is pedalled for 30 minutes and the voltage and hydrogen gas produce is analyzed. Result shows that maximum voltage produce is 0.87V and average voltage produce is 0.75V. There are no hydrogen produce due to low electric current produce and high overpotential of iron nail electeode. As a conclusion, the system is inefficiently to produce hydrogen.
vii ABSTRAK Dalam kajian ini, basikal senaman elektroliser sebagai sistem pengeluaran hidrogen dibincangkan. Objektif kajian ini ialah untuk merekabentuk dan membina sebuah model basikal senaman elektroliser dan untuk menganalisis kecekapan daripada basikal senaman elektroliser sebagai sistem penghasilan hidrogen. Basikal dikayuh selama 30 minit dan voltan bersama dengan gas hydrogen yang terhasil dianalisis. Keputusan menunjukkan bahawa hasil voltan maksimum adalah 0.87V dan hasil voltan purata adalah 0.75V. Analisa menunjukkan hidrogen tidak dihasilkan kerana penghasilan arus elektrik yang rendah dan lebihan voltan elektrod paku besi yang tinggi. Sebagai kesimpulan, sistem ini tidak cekap untuk menghasilkan hydrogen..
viii TABLES OF CONTENTS CHAPTER TITLE PAGE TITLE PAGE DECLARATION DEDICATION ACKNOWLEDGMENTS ABSTRACT ABSTRAK TABLE OF CONTENTS LIST OF TABLES LIST OF FIGURES LIST OF ABBREVATIONS LIST OF SYMBOLS LIST OF APPENDICES i ii iv v vi vii viii xi xii xiv xv xvi 1 INTRODUCTION 1.1 Background of Study 1.2 Problem Statement 1.3 Objective of Study 1.4 Scope of Study 1 1 3 3 4
ix 2 LITERATURE REVIEW 2.1 Hydrogen 2.1.1 Hydrogen as a Fuel 2.1.2 Hydrogen Used in Fuel Cell 2.2 Water Electrolysis 2.2.1 Electrolyser 2.2.2 Alkaline Electrolyser 2.2.3 Proton Exchange Membrane Electrolyser 2.3 Renewable Energy 2.3.1 Wind Energy 2.3.2 Wind Energy in Malaysia 2.3.3 Limitation of Wind Energy 2.3.4 Solar Energy 2.3.5 Limitation of Solar Energy 2.4 Exercise for a Healthy Lifestyle 2.4.1 Cycling 2.4.2 Pedal-A-Watt 2.5 Alternator 5 5 5 7 7 9 11 12 13 15 16 18 19 20 21 22 23 25 3 METHODOLOGY 3.1 Introduction 3.2 Designing the Exercise Bike s Electrolyser System 3.3 Construct the Exercise Bike 3.4 Fabrication the Alkaline Electrolyser 3.5 Preparation of 30 wt% of Potassium Hydroxide Solution 3.6 Hydrogen Gas Production Analysis 3.7 Data Collection 3.8 Quality Analysis of Hydrogen Gas 27 27 27 29 31 33 33 35 36 4 RESULT AND DISCUSSION 4.1 The Qualitative Analysis of Hydrogen Gas 4.2 Analysis of the Current Generation 37 37 38
x 4.3 Analysis on the Hydrogen Generation 41 5 CONCLUSION AND RECOMMENDATIONS 5.1 Conclusion 5.2 Recommendations 42 42 43 REFERENCES APPENDICES 44 47
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