Larry Bentley

Larry Bentley is a retired engineer who has worked on the Chill Challenge since its inception as a EWB-USA volunteer.  

Larry worked for more than 35 years in the telecommunications industry where he specialized in construction project management for AC/DC power systems, generators, switchgear and UPS systems. His work earned the U.S. Department of Energy’s Energy Conservation Design award in 1984.  Larry has used his expertise to assist communities in 20 developing countries in Latin America, Africa and Asia.  His missions have included work in refugee camps in Nepal, Uganda, and Ethiopia, electrical system evaluation in hospitals in Liberia and Sierra Leone during the Ebola crisis, and assessing and repairing water wells in Ethiopia as part of a drought response effort.  Larry won EWB’s Founder Award in 2014 for his efforts and currently serves on the organization’s Standing Content Committees for both Energy and Water.

Larry received a BS in Aeronautical Engineering from Georgia Tech.  He is certified as a commercial pilot and flight instructor, as well as a certified trainer for rotary mud drilling and hand pump repair.

Brian Dean

Brian Dean is the Head of Energy Efficiency and Cooling in the Vienna office of Sustainable Energy for All (SEforALL).  SEforALL is an international organization working toward universal access to sustainable energy by 2030, and reducing greenhouse gas emissions to limit climate warming to below 2° Celsius.
Brian has spent more than 22 years supporting energy efficiency and cooling from a range of projects, including policy development, building design, energy analytics and software development.  He joined SEforALL after spending five years with the International Energy Agency (IEA). As the IEA’s Lead for Energy Efficiency in Buildings, he was responsible for investment and policy tracking, the annual Global Status Report on Buildings and Construction, as well as the Future of Cooling report. 

For almost 14 years, Brian worked in Washington DC, San Francisco and New Delhi as the Head of Energy Efficiency Analytics and Policy at ICF International, a global consulting and technology services company. He started his career as a building designer and HVAC engineer.

Andrew Dowdy

Andrew Dowdy is a retired engineer and diplomat who has worked on the Chill Challenge since its inception as a EWB-USA volunteer.  

In his first career, he worked for 17 years in the oil and gas exploration business as a petroleum engineer, geologist and corporate officer.  In his second, Andrew served for 24 years as a US Foreign Service officer in a number of overseas assignments and in Washington.  Much of his work for the State Department focused on economic, environmental and energy policy issues.  In his final assignment, as director of the Office of Alternative and Renewable Energy, Andrew worked on global energy access issues, among others.  

Andrew holds a B.S. in geological engineering from the University of Oklahoma, an M.S. in national resource strategy from the Industrial College of the Armed Forces, and studied economics at the Foreign Service Institute.   He is a member of the International Association of Energy Economists, and has written on the economics of off-grid energy.  

Dave Leonard

Dave Leonard retired in 2018 from a career in IT and Data Center technology and operations and has been a member of EWB-USA’s Chill Challenge team since July, 2019.  

He gained his cooling expertise through inventing, designing, implementing and operating highly efficient and reliable precision cooling for the data center industry.  He served as Chief Data Center Officer for ViaWest, a Data Center Colocation and Managed Services company, where he was responsible for the Colocation business division.  Prior to ViaWest, Leonard founded Critical Infrastructure Consulting LLC., and was the Chief Technology Officer of Infocrossing and its predecessor for 8 years. Prior to that, Leonard was Chief Technology Officer of Corporate Express, Inc. based in Broomfield, Colorado.

Dave holds a BS in Computer Science from Texas Christian University and has presented extensively at Data Center educational events. He was a Fellow in the Uptime Institute’s Fellow Program throughout the life of that program and annually judged the Green Enterprise IT Awards and the Ken Brill Awards.  He currently lives on Maui, where he has maintains his cool through arduous surf and beach activities. 

Rajan Rajendran

Rajan Rajendran is Vice President, System Innovation Center and Sustainability at Emerson Climate Technologies. In this role, Rajan oversees the operation of Emerson’s Helix Innovation Center, located in Dayton, Ohio.  The Helix is Emerson’s new business opportunities development and incubation center focused on solving customer problems by taking an ecosystem approach.

Rajendran serves on HVACR industry committees, such as the AHRI, the Alliance For Responsible Atmospheric Policy, NAFEM and ASHRAE. In addition, he is vice chair of the Systems Steering Committee at AHRI, the co-chair of the Global Food Cold Chain Council (GFCCC) and represents the United States on UNEP’s Refrigerant Technical Options Committee (RTOC) as the lead author for Refrigeration and member of the Air Conditioning chapters.   

Rajendran has a B.S. from the University of Madras, India, and an M.S. and Ph.D. in mechanical engineering from Iowa State University. He also has a master’s degree in business administration from Wright State University. 

Mike Saunders

Mike Saunders has more than 25 years of experience in refrigeration product development and support. His experience ranges from compressor development, system architecture design and analysis, as well as software development. He also serves on industry committees for ASHRAE and AHRI.  

His current role as senior lead innovation technologist has him working at Emerson’s new Helix innovation center on the University of Dayton campus focusing on innovation in the food retail and food service space.  He also spends time on educating and supporting supermarkets on refrigeration trends and technologies. 

Mike holds a B.S. in mechanical engineering and an M.S. in mechanical engineering from the University of Idaho.

Davide Ziviani*

Dr. Davide Ziviani is a Research Assistant Professor at the Ray W. Herrick Laboratories and serves as the Associate Director of the Center for High Performance Buildings (CHPB) at Purdue University. He has extensive expertise in the modeling and testing of thermal systems and their components, including positive displacement compressors and expanders, organic Rankine cycles for waste heat recovery, as well as advanced conventional and disruptive HVAC&R technologies for residential and commercial applications. 

Dr. Ziviani received his Doctoral degree in Electromechanical Engineering from the University of Ghent in Belgium, and Master’s and Bachelor’s degrees in Mechanical Engineering from the University of Ferrara in Italy. He has authored and co-authored more than 90 archival journal articles and conference papers. He has also the co-author of 4 book chapters. 

Dr. Ziviani is actively involved with ASHRAE and IIR. He serves as the Research Chair of ASHRAE TC 8.1 and as the Vice-Chair of ASHRAE TC 8.3. Moreover, he serves also as member of the Board of the Knowledge Center on Organic Rankine Cycle (KCORC) Foundation.

*Dr. Ziviani recused himself from judging the submissions from Purdue University.