Boiling has long been recognized as being driven by bubbles. However, it is only recently that the local hydrodynamic and thermal field created by a bubble is recognized as a driver to Critical Heat Flux Phenomenon along with the heat transfer efficiency as measured through the heat transfer coefficient. The talk takes a step back and presents a seamless approach by focusing on a single bubble and its potential to dramatically alter the heat transfer performance.

Professor T.S. Zhao Academician of The Chinese Academy of Sciences (CAS) Cheong Ying Chan Professor of Engineering and Environment Chair Professor of Mechanical & Aerospace Engineering Director of the HKUST Energy Institute Senior Fellow of the HKUST Institute for Advanced Study HKUST Plenary Lecture 2: Tackling Challenges in Electrochemical Energy Storage Using Thermo-fluid Sciences

The combination of energy shortage and climate change is one of the most complex challenges the world, as a whole, has had to face. The next 50 years is a vital period for human civilization and it is imperative that we revolutionize the way we produce and store energy and incorporate renewables as our primary source of energy. This talk will provide a snapshot of the future of the sustainable energy landscape and identify several game-changing technologies that will facilitate the widespread deployment of renewables. In particular, we will highlight our recent advances in redox flow batteries, fuel cells, and lithium-oxygen battery technologies achieved through an interdisciplinary approach that combines thermal-fluid science and electrochemistry. The scientific issues and practical challenges pertaining to this advanced battery will be discussed, with a particular emphasis on how the challenges can be addressed using thermos-fluid sciences.

Biomaterials are always required to keep their qualities from the moment of their isolation or purification to the moment of utilization. A high-quality preservation is the crucial technology for the logistics and long-term shelf life of precious biomaterials, e.g. biopharmaceuticals and clinical analytes, because most of the biomaterials rapidly deteriorate depending on their ambient environment. Since last year, attention has been attracted on the robustness of such a biomaterial (vaccine in liquid state) in logistics, which highlights the importance of the preservation technology.

In this lecture, focusing on water in biomaterials, which mediates deterioration of all kinds of biomaterials, two topics are introduced: 1) A new method for estimating deterioration speed of proteins in preservative solutions by evaluating the rotational water molecular speed, 2) Designing the air and vacuum drying processes (dehydration) of bio-preservative solution including a crystallizable protective agent. The former technique enable the prediction of sample shelf life that should be useful for screening protective agents, and the latter technique could be a useful tool to design the "non-freezing" drying process considering the sample size, which might propose more cost-saving high-throughput pharmaceutical process than freeze-drying and freezing process are.