Wei-Hsin Chen

, National Cheng Kung University, Taiwan

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, Taiwan. 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. He was also an invited lecturer at the University of Lorraine in 2019 and 2020. His research topics include bioenergy, hydrogen energy, clean energy, carbon capture, and atmospheric science. He has published around 550 papers in international and domestic journals and conferences. He is the associated editor of International Journal of Energy Research, and the editorial members of Applied Energy, Energies, BMC Energy, Energy, Ecology and Environment, etc. He is also the author of several books concerning energy science and air pollution. In recent years, his important awards include 2015 and 2018 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), 2019 Highly Cited Review Article Award (Bioresource Technology), and 2016-2019 (4 consecutive years) Web of Science Highly Cited Researcher Awards.

 

THERMOELECTRIC GENERATION FOR ENVIRONMENTAL SUSTAINABILITY: FROM WASTE HEAT TO GREEN POWER

Due to energy shortage and environmental pollution, concerns on energy issues have increased significantly over the past several decades. The need for alternative energy sources is important for many countries. On the other hand, many industrial processes and power plants generate a huge amount of waste heat from burning fossil fuels or utilizing other fuels. In the waste heat, low-temperature waste heat accounts for the largest proportion. On account of a large amount of the low-temperature waste heat in the industry, if the waste heat can be recovered effectively, it will be an effective countermeasure to abate industrial energy consumption, thereby mitigating the atmospheric greenhouse effect and global warming. Thermoelectricity (TE) is a friendly, reliable, and sustainable energy resource, and thermoelectric generators (TEGs) are promising devices to harvest waste heat, especially for recovering low-temperature waste heat. Through the Seebeck effect, TEG can convert thermal energy from waste heat into electrical energy. In recent years, the development of TE and TEG for green power generation has received a great deal of attention. In this study, progress in the recent researches of TEG through different methods will be introduced. These methods include material development to intensify the figure-of-merit of TEG, operating strategy to enhance TEG’s performance, and TEG geometry design or material combination to maximum power output. In particular, the application of evolutionary computation for designing TEG geometry will be illustrated. The important characteristics and findings of TEG from both the experimental and numerical studies conducted in our laboratory will also be highlighted.