Speakers

Abstract:

Coming soon.

Bio:

Omar Matar (OKM), FAPS, FIChemE is Vice-Dean of Engineering at Imperial College and RAEng/PETRONAS Research Chair in Multiphase Fluid Dynamics. His research interests are in multiphase flows, analytical techniques, numerical modelling, and data-centric methods with applications in oil-and-gas, fast-moving consumer good, and manufacturing.

He has published over 245 refereed papers with over 7000 citations and an h-index of 46 (GS). He is co-Editor-in-Chief of J. Eng. Math., and received >£35M in funding from EPSRC, andindustry including the £5M EPSRC Programme Grant, MEMPHIS, to develop predictive tools for multiphase flows. OKM is also the Director of Transient Multiphase Flows (TMF), consortium on flow assurance, and Deputy-Director of an EPSRC CDT in Fluid Dynamics across Scales.

Abstract:

Market analysis are clearly showing increased electrification of powertrains and especially in 2030, Battery Electric Vehicle (BEV), market could be as high as 30%. The key element for the electrification is the battery. Among the different challenges for developing a battery pack for HEV (Hybrid Electric Vehicle) and BEV, the cooling method can account for up to 5-10% of the total cost of the battery pack.as well as impacting weight and packaging volume. With the forecasted cost reduction of the battery cell, the required increase in power and energy density, the cooling method plays an even greater role. Electric motor and power electronics thermal management is another important aspect of the xEV successful integration.

The presentation will show different methods to manage temperatures of electric components on xEVs and how to handle all the cooling and heating requirements depending on the driving conditions thanks to the help of multi temperature cooling circuits and advanced thermal control methods (such as Model Predictive Control and electronic Horizon) requiring reduced order thermal models.

Improving the cooling performance for durability (battery ageing) improvement, ultra fast charging capabilities (as enabler for increased BEV market penetration), cost reduction, performance (electrical power) increase will be discussed

Bio:

Dr. Cedric Rouaud is Global Technical Expert for Ricardo in thermal management and waste heat recovery for conventional and electrified vehicles (passenger car and commercial vehicles including battery, electric motor, power electronics). He is also chief engineer on powertrain development. He joined Ricardo in 2008. He began his professional career in Renault as a research engineer in 2000, while fulfilling his doctorate diploma in the University of Poitiers.

During his career, he has managed and developed several projects among which include:

• development of technologies for reducing CO2 emissions on gasoline and Diesel engines;
• thermal management of hybrid and electric vehicles (battery, electric motor, power electronics, vehicle integration);
• development of waste heat recovery systems for passenger car, HDD, railway, gensets;
• performing thermo-hydraulic simulations for reducing fuel consumption, improving EV range, optimisation of energy management;
• performing powertrain and vehicle tests (testbed, chassis dyno, Climatic Wind Tunnel, hot/cold environment tests)

Abstract:

Spray cooling is an efficient cooling method forhigh power device heat management.Spray cooling is particularly favorable because of its high heat flux dissipation capability, precise temperature control and reliable long-term stability. Micro, nano and micro/nano structures were fabricated to study the effects of these structures on the spray cooling heat transfer enhancement. The droplet impingement cooling wasnumerically studied first to identify the flow and heat transfer details and to offer insights into the spray cooling heat transfer mechanisms. Through the advanced experimental method, the impact flow and phase change of single microscale droplet were investigated to reveal the heat transfer enhancement mechanisms of spray cooling. The boiling phenomenon of the microscale droplet after impact was studied theoretically by combining the droplet impact process and the following phase change process. Then, the wetting characteristics and heat transfer performance of nano-structured surfaces and micro/nano hybrid surfaces were studiedexperimentally, which showed much higher HTC and CHF with these structured surfaces. The spray cooling heat transfer was also studied experimentally in a closed-loop spray cooling system using arefrigerant as the working fluid.

In the process of convection heat transfer of fluids at supercritical-pressures the phase changedoes not happen.Therefore, there is no dryout phenomenon and CHF for impingement cooling with the supercritical-pressure fluid. Jet impingement cooling with CO2at supercritical pressureswas studied experimentally and numerically. It was found thatthe average HTC of jet impingement cooling of CO2at SCP is rather high than that with spray cooling when the cooling area is not very large compared to the nozzle diameter. Spray cooling consumes less coolant compared to jet impingement cooling with the same heat flux.This studyprovides useful guidance on the heat transfer enhancementandheat transfer mechanisms for spray cooling and supercritical-pressure fluid impingement cooling on different structured surfaces.

Bio:

Peixue Jiangis a professor and Dean of the Department of Energy and Power Engineering, Tsinghua University, China. He received his bachelor’s degreeat Tsinghua University in 1986 and his Ph.D. degree in the Department of Thermo-PowerEngineering at Moscow Power Engineering Institute in 1991. He then joined the Tsinghua University and took the full professor post in 1997.

His main research interests are convection heat transfer in porous media and enhanced heat transfer, convection heat transfer of fluids at super-critical pressures, transpiration cooling and film cooling, thermal transport in micro/nano-scale structures and spray cooling, migration of super-critical CO2 in porous media under conditions of geological storage and oil/shale gas recovery, Enhanced Geothermal System (EGS). He has won the National Natural Science Award second prize, and heis the recipient of the National Science Fund for Distinguished Young Scholars from the National Natural Science Foundation of China, Chang Jiang Scholar of Ministry of Education, the leader of the Science Fund for Creative Research Groups from the National Natural Science Foundation of China. His research has resulted in more than 160 scientific publications in refereed international journals, 120 international conferencepapers, 160 papers published in refereed Chinese journals and 2 book chapters in Chinese.

Professor Jiang is now the Director of Institute of Engineering Thermophysics in Department of Energy and Power Engineering, Director of Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Director of Beijing Key Laboratory of CO2 Utilization and Reduction Technology. He is a council member of the Chinese society of engineering thermophysics, vice chairman of the Chinese heat and mass transfer society, member of department of energy and transportation in science and technology committee of the Ministry of Education, member of the Technical Expert Group on Renewable Energy and Hydrogen Energy of the 13th Five-Year Plan of China.He is an Honorary Professor of University of Nottingham (UK), Honorary Professor of Moscow Power Engineering Institute (Russia), and visiting Professor of University of Sheffield (UK).

Abstract:

Heat transfer through a smooth circular tuberemains one of the most important heat transfer problemsin internal convetion. Depending on the method of heating/cooling (constant heat flux or constant wall temperature) the flow regimes might be forced convection or mixedconvection. This will significantly influence parameters such as the development of the hydrodynamicandthermal boundary layers and entrance lengths, the local-and average heat transfer coefficients, as well as the local and average pressure drops.

Extensive theoretical work was done from which the above-mentioned parameters were estimatedfor forced convection conditions, but it was unfortunately not necessarily verified byrigorous experimental work. Alittleexperimental and theoretical work has been done for mixed convection heat transfer; however,the focus was mainly on the laminar flow regimeand very little work has been done for the transitional flow regime.

It was therefore the purpose of this study to give a new perspective on forced and mixed convection heat transfer in smooth circular tubesby conducting rigorous experiments and compiling an experimental database which were orders of magnitude largerthan previous databases. Some of the main new perspectives that were developedfrom the resultsare:

1. A longer thermal entrance length is required if the flow is simultaneously hydrodynamically and thermally developing.
2. The fully developed forced convection laminar Nusselt number is not constant at 4.36, but is a function of Reynolds number for Reynolds numbers greater than 600.
3. Free convection effects were found to decrease the thermal entrance length.
4. The width of the transitional flow regime decreased and the transition gradient increased as the flow developed along the tube length. Once the flow was fully developed, both the width of the transitional flow regime and transition gradient remained constant.
5. Free convection effects caused the width of the transitional flow regime to decrease and the transition gradient to increase. At very high Grashof numbers, the transitional flow regime even became negligible and the flow regime changed from the laminar flow regime to the quasi-turbulent flow regime at the next Reynolds number increment.

Bio:

Prof Josua Meyer, was in 2002, appointed at the University of Pretoria as professor, and Head of Mechanical and Aeronautical Engineering (1900 students), and in 2004, Chair of the School of Engineering (7000 students). He is now serving his fourth terms for both Head of Department and School Chair.

He is leading the Clean Energy Research unit that he established with a broad focus on thermal sciences and fluid flow, but with a narrower focus on heat exchangers. His heat exchanger work focused on fundamental work of flow in the transitional flow regime, nanofluids, and condensation. On an applications level his work focuseson thermal-solar-, wind-and nuclear energy. He has grown this group to approximately 50 full-time graduate students and 10 staff members. During this time,he also established various labs with state-of-the-art instrumentation and designed and constructed (with his group members) more than 12 unique experimental set-ups.

He has received 11 different national teaching awards from three different universities, as well as an international award, in 2013, for “Best professor in mechanical and aeronautical engineering”. He has won more than 45 research awards including 23 awards for best article of the year or best conference paper. For his research he has won the following national and international awards: Thomas Price Award, Rand Coal Award, South African Institute of Mechanical Engineers Medal, LT Campbell-Pitt Award, Literati Award, Chairman’s Award of the South African Institute of Air-conditioning and Refrigerationand Will Stoecker award. He is a member or fellow of various professional institutes and societies such as ASME, ASHRAE, AIAA, and the Royal Aeronautical Society.

He has an A-rating from the NRF. His is a “highly cited researcher” according to the ISIandranked among the top 1% in engineering. He is on the editorial board of 13 journals and is editor of 7 journals in his field of research. Recently, he was on the selection committee of the Franklin Institute Awards Programme (one of the world’s oldest (since 1824)) for the Benjamin Franklin Medal. To date, 117 awards of this institute have been honoured with Nobel prizes.

He has (co)authored more than 800 articles, conference papers, and book chapters, and has (co)supervised more than 100 research mastersand PhD students. In 2016, he won the University of Pretoria “Exceptional Achiever Award” for the fifth time.

Abstract:

Numerous process engineering applications are now exploiting additive manufacturing (AM) to produce more advanced concepts that are delivering demonstrable performance improvements. In the subject area of heat transferfor example, this includes the fabrication of bespoke heat exchangers, recuperators and heat pipes [1,2,3], some of whichare specifically being used to solveproblems in real industrial settings. In this talk, three specific examples of AM that are being researched in the Process Intensification Group(PIG)at Newcastle University will be discussed, and then abstracted/generalised to provide a perspective on how AM can be best exploited now and in the future.Additionally, this talk will also provide an overview of the current state of AM, and will provide a brief overview of each of the main AM technologies and their major advantages, disadvantages and current/potential applications.

AM might presently be better considered as a tool like any conventional manufacturing processrather than a one-size fits all approach, whereas in the future, AM might becomea moreintegrated toolfor the fabrication of plant equipment that hybridises multiple unit operations. The main work prior to the realisation of the latter will be increasing the knowledge-base of PI-technologies –several EU projects are already working toward this goal (examplesinclude IbD andPRINTCR3DIT) [4,5]. Theprojectsin the PIGthat will be discussed that are also relatedto this research goal are: (1) the miniaturisation of the Torbed® technology (Figure 1a) for screening adsorbents for carbon capture (in collaboration with Torftech Group Ltd., HeriotWatt University and University of Sheffield)[6], (2) proposing novel heat pipe wick geometries that could potentially fully optimise thethermal performanceof heat pipes(work commissioned by HiETA[7]and SES Engineering Services), and (3) producing bespoke and complex reactor geometries that can be used in conjunction with dynamic reactor operation (e.g. oscillatory flow) to unlock new operating windows(Figures 1b and 1c)[8].

[1]Faure, R. (2018). Innovative reactors for H2-SMR process intensification (Air Liquide). In:1stEuropean Forum on New Technologies: Chemical Engineering & 3D Printing, 7thSeptember, Paris, France

[2]Kiener, C. (2018). Software solutions for digital AM process chains (Siemens). In:1stEuropean Forum on New Technologies: Chemical Engineering & 3D Printing, 7thSeptember, Paris, France

[3]Jafari, D., Wits, W.W., Geurts, B.J. (2018). Metal 3D-printed wick structures for heat pipe application: Capillary performance analysis. Appled Thermal Engineering 143, 403-414

[4]Intensified by Design (IbD), (2019). http://ibd-project.eu/

[5]Grande, C. (2018). PRINTCR3DIT EU Project: Process Intensification through Adaptable Catalytic Reactors made by 3D Printing (Sintef). In:1stEuropean Forum on New Technologies: Chemical Engineering & 3D Printing, 7thSeptember, Paris, France

[6]McDonough, J.R., Law, R., Reay, D.A., Zivkovic, V. (2018). Intensified carbon capture using adsorption: Heat transfer challenges and potential solutions. Thermal Science and Engineering Progress 8, 17-30

[7]HiETA Technologies (2019). https://www.hieta.biz/[8]McDonough, J.R., Murta, S., Law, R., Harvey, A.P. Oscillatory fluid motion unlocks plug flow operation in helical tube reactors at lower Reynolds numbers (Re ≤ 10). Chemical Engineering Journal 358, 643-657

Bio:

Dr Jonathan McDonoughis an early career researcher at Newcastle University who has significant interest and expertise in the areas of reaction engineering, fluid mechanics, flow chemistry, fluidization, heat transfer and 3D printing. Since completing his PhD in January 2018, Jonathan has already been the lead author on 8 publications, with further publications under review/development. One of Jonathan’s research themes is to exploit additive manufacturing for the fabrication of new and novel reactor geometries that can unlock previously unobtainable operating windows, paving the way for potentially new chemistries and processes. To this end, Jonathan is actively involved in several complementary projects that explore different aspects of this goal. This means he is now well-equipped to provide a perspective on the potential roles that additive manufacturing will play for the production of new intensified processes now and in the future.

Abstract:

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, 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 thisadvanced batterywill be discussed, with a particular emphasis on how the challenges can be addressed using thermos-fluid sciences.

Bio:

T.S. Zhao is currently the Cheong Ying Chan Professor of Engineering andEnvironment, the Chair Professor of Mechanical & Aerospace Engineeringat HKUST, the Director of the HKUST Energy Institute, and a Senior Fellow of the HKUST Institute for Advanced Study. He is an elected Fellow of the American Society Mechanical Engineers (ASME), Fellow of the Royal Society of Chemistry (RSC), and a Highly Cited Researcher by Thomson Reuters (2014, 2015, 2016, 2017, 2018).

Professor Zhao combines his expertise in research and technological innovation with a commitment to creating clean energy production and storage devices for a sustainable future. He has made seminal contributions in the areas of fuel cells, advanced batteries, multi-scale multiphase heat and mass transport with electrochemical reactions, and computational modeling. In addition to 5edited books, 9 book chapters and over 70keynote lectures at international conferences, he has published 331papers in variousprestigious Journals. These papers have collectively received more than 13,000 citations and earned Prof Zhao an h-index of 62(Web of Science). In recognition of his research achievements, Prof Zhao has in recent years received many awards, including the2014 Distinguished Research Excellence Award (HKUST), two State Natural Science Awards, Ho Leung Ho Lee Scientific and Technological Advancement Award (2018), the Croucher Senior Fellowship award, the Overseas Distinguished Young Scholars Award (NSFC), and the Yangtze River Chair Professorship, among others.

In the international community, Prof Zhao serves as Editor-in-Chief ofApplied Thermal Engineering, Executive Editor of Science Bulletin,and Editor of RSC’s Energy & Environmental Science. He has served as an editorial board member for Energy & Environmental Science, Journal of Power Sources, and other 10 prestigious international Journals.