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The captioned webinar was co-organised by the EG Division and Hong Kong Fuel Cell and Hydrogen Energy Association (HKFCHEA) on 22 November 2021.
Hydrogen energy has advantages over other energy sources, as it offers zero-carbon emissions, renewability, high energy density and thermal efficiency, low production costs and environmental friendliness.
In the webinar, two critical issues related to green production and effective utilisation of hydrogen energy were discussed. The first issue was about developing photovoltaics and electrolysis coupling systems for green hydrogen production. These are made of a photovoltaics module and an electrolysis module. The second issue was about the storage, transportation and evolution of hydrogen by using solid-state materials in a safe, efficient and simple manner and avoiding hydrogen in a liquid or gaseous state by using cryogenic or pressurised vessels.
The key technologies in solving these issues are based on the application of catalytic nanomaterials for photoelectrochemical water splitting and the hydrolytic dehydrogenation of ammonia borane, respectively.
After the webinar, the Hon Secretary of the EG Division and HKFCHEA Chairman, Ir Steven Chan, presented a souvenir to Dr Zheng Guangping from the Department of Mechanical Engineering of The Hong Kong Polytechnical University, to thank his insightful sharing which drawn more than 400 members to attend this webinar online.
The captioned webinar was co-organised by the EG Division and the Institution of Gas Engineers and Managers (IGEM) Far East District Section on 14 December 2021. Over 200 attendees participated online and offline.
In recent decades, non-metallic pipes have been replacing traditional steel pipes for gas services to eliminate corrosion risks. The first speaker, Ir Charles Chan, Past Chairman of the EG Division and current Vice Chairman of IGEM Far East District Section, explained the history of employing non-metallic pipes for gas services as well as the standards and specifications for polyethylene (PE) and polyamide (PA) pipe used in the gas industry. The advantages and limitations of steel, PE and PA pipes were also compared and explained.
In Hong Kong, liquid LPG service is still limited to the use of steel pipes while other countries have started using non-metallic pipes to help cut down on corrosion risks. Our second speaker Mr Denni Chan, Project Manager of Manthon International Limited, introduced a non-metallic pipe system called SMARTlpg. This is suitable for liquid LPG underground installation in auto LPG stations. The pipe consists of an outer PE layer for strength and an inner PA layer for resistance to liquid LPG, and an interstitial polyester-fibre reinforcement to fulfil the pressure requirements. Mr Chan also explained the connection methods and shared a site installation experience using SMARTlpg.
The webinar was very informative and inspiring. It ended with a fruitful question-and-answer session.