Plenary Speaker

Prof. Ibrahim Dincer

Professor of Mechanical Engineering, University of Ontario, Canada

Vice President for Strategy, International Association for Hydrogen Energy

Vice President, World Society of Sustainable Energy Technologies

Editor in-Chief: International Journal of Energy Research 


Ibrahim Dincer is a full professor of Mechanical Engineering at University of Ontario and adjunct professor at Faculty of Mechanical Engineering of Yildiz Technical University. Renowned for his pioneering works in the area of sustainable energy technologies he has authored/co-authored numerous books and book chapters, and many refereed journal and conference papers. He has chaired many national and international conferences, symposia, workshops and technical meetings. He has delivered many keynote and invited lectures. He is an active member of various international scientific organizations and societies, and serves as editor-in-chief, associate editor, regional editor, and editorial board member on various prestigious international journals. He is a recipient of several research, teaching and service awards, including the Premier's research excellence award in Ontario, Canada. During the past four years he has been recognized by Thomson Reuters as one of The Most Influential Scientific Minds in Engineering and one of the most highly cited researchers.

Plenary Topic: New Dimensions and Directions in Sustainable Energy and Green Technologies


Energy was/has been/is/will be a critical element in shaping economies, policies, strategies, and relationships with the environment. Since we are moving into a new era where the sustainable energy and green technologies will only be the source of right solutions in targeting to achieve better efficiency, better environment and better sustainability. The subject matter plenary presentation will cover sustainable energy options, including renewable energies, efficient energy use, exergy conservation, energy storage, hydrogen energy, ammonia and solar fuels, system integration for multigeneration, waste to energy, etc., and green technologies, including greenization which is a process in helping making the existing systems cleaner and more environmentally benign. The presentation will also cover the domains of research, innovation and commercialization in turning the knowledge to tangible technologies for sustainable economies. The role of innovation is significantly recognized by numerous countries as a critical component in technology development for more value-added economic activities and greater prosperity which makes a country truly a developed one. There will be a focus on how the complex energy equations will have to be solved, what the new energy dimensions are, and how the energy directions will evolve for future. Furthermore, there will be various cases studies, projects and examples presented to illustrate the sustainable energy options and green technologies for practical applications.

Keynote Speaker

Prof. Wei-Hsin Chen

Distinguished Professor in Department of Aeronautics and Astronautics, National Cheng Kung University, Taiwan

Editorial Board Member: Applied Energy, International Journal of Energy Research and Energies


Professor Wei-Hsin Chen received his Ph.D. degree from the Institute of Aeronautics and Astronautics, National Cheng Kung University in 1993. After receiving his Ph.D. degree, Dr. Chen worked in an iron and steel corporation as a process engineer (1994-1995). He joined the Department of Environmental Engineering and Science, Fooyin University in 1995 and was promoted to a full professor in 2001. In 2005, he moved to the Department of Marine Engineering, National Taiwan Ocean University. Two years later (2007), he moved to the Department of Greenergy, National University of Tainan. Now he is a faculty member and distinguished professor at the Department of Aeronautics and Astronautics, National Cheng Kung University. Professor Chen visited the Princeton University, USA, from 2004 to 2005, the University of New South Wales, Australia, in 2007, the University of Edinburg, UK, in 2009, the University of British Columbia, Canada, from 2012 to 2013, and the University of Lorraine, France, in 2017 as a visiting professor. His research topics include bioenergy, hydrogen energy, clean energy, carbon capture, and atmospheric science. He has published over 350 papers in international and domestic journals and conferences. He is the editorial member of a number of international journals, including Applied Energy, International Journal of Energy Research, Energies, etc. He is also the author of several books concerning energy science and air pollution. Recently, his important awards include 2015 Outstanding Research Award (Ministry of Science and Technology, Taiwan), 2015 Highly Cited Paper Award (Applied Energy, Elsevier), 2017 Outstanding Engineering Professor Award (Chinese Institute of Engineers), and 2016 and 2017 Web of Science Highly Cited Researcher Awards.

Keynote Topic: Progress in Biomass Torrefaction for Sustainable Solid Fuel Production


Development of renewable energy is considered as an effective countermeasure to abate anthropogenic CO2 emissions and mitigate global warming. Bioenergy accounts for the largest share among developing reviewable energies, and has been extensively applied in heat and power generation as well as residential and transport sectors. Biomass can also be directly utilized as a solid fuel and burned for heat and power generation. However, biomass possesses a number of disadvantages such as hygroscopic and biodegradable nature, high moisture content, low calorific value, poor grindability, large volume or low bulk density, and low homogeneity. These drawbacks give rise to a low conversion efficiency as well as difficulty in the collection, grinding, storage and transportation of biomass, thereby limiting the application of biomass in industry Torrefaction is a promising technology to upgrade biomass for sustainable solid fuel production. The aforementioned properties of biomass can be improved to a great extent after it undergoes torrefaction, making biochar approaches coal. As a consequence, torrefied biomass can be used as an alternative to coal consumed in industry. This talk addresses the progress in biomass torrefaction technology for biochar production, especially in the impact of this thermal pretreatment on the property variation of biomass. The applications of biochar in industry such as combustion, gasification, ironmaking, pyrolysis, and liquefaction are also underlined.

Prof. Dennis Y. C. Leung

Professor and Associate Head, Department of Mechanical Engineering, The University of Hong Kong, Hong Kong

Editorial Board Member: Frontiers in Environmental Sciences, Applied Energy, Journal of Power & Energy, and Sustainable Energy, Energy Conversion and Management


Prof. Dennis Y.C. Leung received his BEng (1982) and PhD (1988) from the Department of Mechanical Engineering at the University of Hong Kong.  He had worked in the power industry for five years heading the air pollution section before joining the University of Hong Kong in 1993. Professor Leung is now a full professor and associate head of the Department of Mechanical Engineering specializing in environmental pollution control and renewable & clean energy development. He has published more than 450 articles in this area including 250+ peer reviewed SCI journal papers. He was invited to publish more than 20 review articles in leading energy and environment related journals.  His current h-index is 59 and total citations are more than 13000. He is one of the top 1% highly cited scientists in the world in energy field since 2010 (Essential Science Indicators) and named as a Highly Cited Researcher by Clarivate Analytics.  Prof. Leung has delivered more than 50 keynote and invited speeches in many conferences as well as public lectures.  Prof. Leung is a chartered engineer, a fellow of the IMechE and Energy Institute. He is also the Past Chairman of the Energy Institute (HK), and serves as an editorial board member of a number of journals including and Applied Energy, Applied Sciences, Progress in Energy and Journal of Power & Energy. He is the Specialty Chief Editor of the Frontiers in Environmental Science since 2014. Professor Leung received numerous awards including the Outstanding Earth Champion Hong Kong award in recognizing his contributions in protecting the environment.

Keynote Topic: Carbon capture and storage: Technologies development and current status


Global warming and climate change concerns have triggered global efforts to reduce the concentration of atmospheric carbon dioxide (CO2). Carbon capture and storage (CCS) is considered a crucial strategy for meeting CO2 emission reduction targets. In this talk, various aspects of CCS are reviewed and discussed including the state of the art technologies for CO2 capture, separation, transport, storage, leakage, monitoring, and life cycle analysis. The selection of specific CO2 capture technology heavily depends on the type of CO2 generating plant and fuel used. Among those CO2 separation processes, absorption is the most mature and commonly adopted due to its higher efficiency and lower cost. Pipeline is considered to be the most viable solution for large volume of CO2 transport. Among those geological formations for CO2 storage, enhanced oil recovery is mature and has been practiced for many years but its economic viability for   anthropogenic sources needs to be demonstrated.  There are growing interests in CO2 storage in saline aquifers due to their enormous potential storage capacity and several projects are in the pipeline for demonstration of its viability. There are multiple hurdles to CCS deployment including the absence of a clear business case for CCS investment and the absence of robust economic incentives to support the additional high capital and operating costs of the whole CCS process. Lastly, the challenges and prospects of various carbon mediation measures, and their current status will be discussed.

Prof. Michael K. H. Leung

Professor in School of Energy and Environment, City University of Hong Kong, Hong Kong

Director of Ability R&D Energy Research Centre (AERC)

Editorial Board Member: Applied Energy


Prof. Michael Leung received his PhD degree in Mechanical Engineering from the University of Florida, Gainesville, Florida, U.S.A. in 1995. He was an Assistant Professor in the Department of Mechanical Engineering at the University of Hong Kong before joining the City University of Hong Kong in 2010. Presently, Prof. Leung is a Professor in the School of Energy and Environment at CityU and the Director of Ability R&D Energy Research Centre at CityU. Prof. Leung's main research interests are solar photocatalysis, fuel-cell electrochemistry and advanced refrigeration and air-conditioning. He has published 140+ journal papers, 16 books/book chapters, and 6 patents. He is listed in the Most Cited Researchers in Energy Science and Engineering by Shanghai Ranking’s Global Ranking of Academic Subjects by Elsevier. The research grants received add up to a total above HK$40M (US$5M). Prof. Leung is also the Chairman in the Education and Examinations Committee of the Hong Kong Institution of Engineers, a Past Chairman of the Energy Institute (Hong Kong Branch), a Chartered Engineer, and a Registered Professional Engineer. 

Keynote Topic: Photocatalytic Fuel Cell: Prospects and Challenges


Photocatalytic fuel cell (PFC) is primarily a synergistic integration of two emerging technologies, namely, photocatalysis (PC) and fuel cell (FC). Solar PC can decompose organic compounds while FC provides an electrical potential gradient to facilitate transport of electrons. Therefore, PFC can be effectively applied to utilize solar energy for wastewater treatment and recovery of energy chemically stored in wastewater. It is a promising technology for solving both environmental and energy problems. In order to conduct proper research for rapid development of PFC, we need to have good knowledge about the material properties and clearly understand the cell mechanisms of PFC. The Fermi level between the photoanode and the cathode forms interior bias that inhibits recombination of photogenerated electrons and holes, resulting in increase in visible-light activation of PFC. Modification of photoelectrocatalysts and use of microfluidics are effective strategies for improving the PFC performance. The PFC effects can also be manipulated by the system configuration, design and control for specific outputs and reaction rates. In this talk, the speaker will present the fundamentals, latest development of PFC, and upcoming R&D challenges needed for enhancing the PFC technology.

Invited Speaker

Ir. Chen Thiam Leong
(FASHRAE, FIFireE, FIEM, P. Eng, C. Eng, PjB)


Chen is Past President of the Association of Consulting Engineers Malaysia, Institution of Fire Engineers Malaysia,  ASHRAE Malaysia Chapter and Kiwanis Down Syndrome Foundation. He is also Advisor to the Malaysian Air-Conditioning & Refrigeration Association and the BAS Association of Malaysia. He is a founding member of the Malaysian Green Building Confederation and Malaysia’s Green Building Index, and is currently Chair of the GBI Accreditation Panel.
Chen holds a First Class Honours degree in Mechanical Engineering from the University of Leeds, England. He has over 40 years’ experience in the Building Services Industry (local and overseas), and his innovative designs have won 2 ASEAN Energy Awards, an Emerson Cup Winner and a 2nd Placing in the prestigious ASHRAE Technology Award 2013.
Chen is very active in the engineering fraternity, and serves in Malaysian Standard writing committees where he was instrumental in drafting the national Energy Efficiency Bylaw and the upcoming Energy Efficiency & Conservation Act. He served in the National Steering Committees on Energy, ODS and Photo Voltaic. Chen authored/co-authored Malaysian Standards on Energy, HVAC and Fire Codes; and was a national expert for the HCFC Phase-out Master Plan. He has presented numerous technical papers in the fields of Fire Protection, Smoke Control, Air-Conditioning, Refrigerant issues, Energy & Green Issues.
In 2006 Chen was appointed Malaysia’s 1st ASHRAE Distinguished Lecturer and has since been lecturing globally on Sustainability and Energy Efficiency. In recognition of his contribution to the engineering fraternity, he was conferred the ACEM Gold Medal Award in 2010.
Invited Speaker TopicTowards Green Refrigerants & Beyond Refrigerants


The first generation of refrigerants was all about accepting anything that works: heralding the era of Natural refrigerants. The second generation addressed concerns on safety (flammability), toxicity & durability: and saw the emergence of the Synthetic era. The third generation refrigerants sought to protect our ozone layer, resulting in the demise of CFCs followed by HCFCs. Today's fourth generation seeks to arrest global warming: and inevitably completing the circle back to the first generation refrigerants.

So what's next after the latest emerging HFOs and Naturals aka Green Refrigerants? Are we ready and prepared to move past the era of Synthetics and Naturals to a future of Non Rs?

Dr. Alex Lee 


Dr. Alex Lee has over 25 years of research experiences at STAe, DSO, IHPC, CIMNE (Singapore), NUS, with a focus on the applications of numerical methods to the built environment (building and cities) with energy and sustainability as key pivots. His expertise includes Integrated Building Performance Analysis, HVAC System, Energy in Buildings, Performance Based Fire and Smoke Analysis. He is an Adjunct Professor in NUS, SiT and BCA Academy. He has also been actively involved the Integrated Sustainable Design of Building, working closely with different stakeholders on the building ecosystem such as architects, engineers, project managers for a holistic view of energy and building. He is also the co-developer and the co-founder of BIM HVCTool – A Graphica User Interface for Building Performance Analysis Tool.

​​​Invited Speaker TopicBIM Centric ETTV Analyser and Performance Based SC2


For Singapore BCA Green Mark 2015, ETTV has been tightened up by 10% for Certified / Gold and by 5% for Gold Plus / Platinum. This poses challenges for designers and consultants to design visually attractive facades that are energy efficient, yet capital cost efficient. This move by the  BCA would predictably cause increased workload to engineers in the ETTV computation.  So what should be the next wave of Building Information Modelling (BIM) analytics? Architects need to be equipped with a model based software that can help them visually see ETTV performance on each facade, making sense to their design implications. It should not be a complex table of formula and numbers. In a nutshell, engineers can now pass on the labour-intensive ETTV computation task to the software. No more unproductive chore to compute ever changing WWR facade element area calculation or building orientation determinacy for curved buildings, or mind-boggling computation of Shading Coefficient (SC2) values for complex sun shading devices. All these can be performed not in the boring tabulated standard practice but with a visual interface is so user friendly that even architects can compute ETTV through this model based approach.

Prof. Jin Liwen


​​Dr. Jin Liwen is currently a Professor in the Institute of Building Environment and Sustainable Technology of Xi’an Jiaotong University. He graduated from Chang'an University, China, in 1994 with a bachelor’s degree in heating, ventilation and air conditioning engineering, and received his doctor's degree from Nanyang Technological University, Singapore, in 2006. He was a research staff at Nanyang Technological University and National University of Singapore in 2006-2012 before joining Xi’an Jiaotong University. He is the co-leader of the Shaanxi Key Innovation Team of Building Environment and Energy Engineering. His research interests include heat transfer enhancement, building energy conservation and renewable energy applications.​​

Invited Speaker Topic: Flow and Heat Transfer in Curve Channel with Sinusoidal Wave Wall                                                Structure


Numerous studies have been carried out on flow and heat transfer in curve channel for its excellent heat transfer performance attributed to the positive effect of centrifugal force on thinning thermal boundary layer and introducing secondary flow. Known as one of common forms of curve channels, spiral channel has received special attention for its high compactness, which is rather essential in the design of heat transfer device in many fields, such as electric cooling, spacecraft and automobiles. In the present work, wave structure is introduced into curve channel to increase the flow disturbance and thin thermal boundary layer periodically. Flow and heat transfer characteristics in curve channel with sinusoidal wavy wall structure and the effects of wave amplitude are numerically investigated. The results show that the second flow in curve channel becomes strong and complex and overall heat transfer performance can be efficiently improved after introducing periodical wave wall structure. In addition, the amplitude of wave wall has a significant effects on the comprehensive evaluation index of heat transfer enhancement considering the increase of pressure drops, and the optimum wave amplitude may be found for a curve channel with a given curvature radius.

Prof. Hans Weemaes


Prof Hans Weemaes is a Dutch national, with a 15+ year international career in Consulting, Educations and Financial Services. He is a Managing Director at NEAPOLI, a multiple award winning environmental design & engineering firm with offices in Kuala Lumpur, Seoul and in London. NEAPOLI’s current portfolio exceeds 25 million sqft Green Building space across major sustainable projects around the world.

Prior to this, Hans worked as a Visiting Professor at Yonsei School of Business, as where he taught Strategic Management, Entrepreneurship and Project Management.

At ING Bank London, he was responsible for the execution of their strategic initiatives. He also worked as an independent consultant, and completed various strategic consultancy engagements all over the world for SME’s as well as completing studies on innovation for the Singaporean Economical Development Board.
He has an MBA with Distinction from London Business School, and a Masters in Business from Erasmus University in the Netherlands. In addition, he is a LEED Accredited Professional.

Invited Speaker Topic: Machine Learning for Building Energy Parametric Optimisation


Artificial intelligence (AI) can change the way we think about buildings, neighbourhoods and cities: uncovering information that was previously too laborious to quantify, and producing design methods that challenge what’s humanly possible.  NEAPOLI has employed AI techniques and specifically Machine/Deep Learning, to overcome a technical limitation of building energy performance simulations: the computation time. In this presentation, Prof Hans Weemaes, MD NEAPOLI, will present three case studies of AI boosting the performance of building design by providing large scale data analysis and inference capability.