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International Conference on Innovative Applied Energy    

E-Proceedings ISBN: 978-1-912532-05-6

14-15 March 2019, Oxford, United Kingdom



A simplified model of a reactor for production of hydrogen from photocatalytic water splitting (PWS) using TiO2 and natural sunlight



K R Davey and J Muller


School of Chemical Engineering, The University of Adelaide, Australia



Paper Abstract

New methods for production of energy are important for the replacement of dwindling fossil fuel reserves. The sustainable production of hydrogen as a replacement clean fuel from photocatalytic water splitting (PWS) is being investigated. However, the lack of a unit-operations model for the design, scale-up and optimization of a practical reactor is a restriction to its rapid implementation. We develop an original simplified PWS reactor model, based on established chemical engineering principles, and apply the probabilistic risk framework of Davey and co-workers to simulate the impact of uncontrolled natural fluctuations in sunlight intensity, ambient temperature and diurnal time, on hydrogen production using TiO2 as the photocatalyst. This original model identifies that fluctuations in sunlight intensity have a highly significant impact on hydrogen production. A PWS reactor, sited in S-E Australia and operated between 09.00 and 16.00, h is proposed to ensure conditions for reliable rates of hydrogen production. This work will be of benefit to engineers and chemists researching practical water splitting for the production of hydrogen

Paper Keywords
Photocatalytic water splitting (PWS); PWS reactor; Friday 13th risk modelling, Fr 13; Hydrogen production; Natural sunlight.
Corresponding author Biography

Dr Kenneth Davey FIChemE CEng received his PhD from Melbourne University. He then worked as a Postdoctoral Researcher and Senior Research Scientist with CSIRO and subsequently at The University of Adelaide. Dr Davey teaches core chemical engineering and actively supervises higher degree research students. He has published more than 140 refereed journal articles and patents and has received numerous awards for his work. He is an interdisciplinary researcher in chemical engineering with applications to new risk assessments for improved process efficiencies, reliability and safety, and; energy conversions and storage.

The International Conference on Innovative Applied Energy (IAPE’18)