Davide Ziviani
Purdue University, School of Mechanical Engineering
177 S. Russell Street
West Lafayette, IN 47907
USA
+1-619-496-9011
Region: V
Honorarium: None
dziviani@purdue.edu
Ziviani

Dr. Davide Ziviani is an Assistant Professor in the School of Mechanical Engineering at Purdue University and is the Associate Director of the Center for High Performance Buildings (CHPB) at the Ray W. Herrick Laboratories. He joined Purdue University as Post-doc in 2017 and transitioned to faculty member in 2019. Dr. Ziviani received his Doctoral degree in Electromechanical Engineering from the University of Ghent in Belgium in 2013.

Dr. Ziviani teaches undergraduate and graduate courses on Thermodynamics and Analysis of Thermal Systems and is also one of the core faculty of the International Refrigeration and Compressor Course (IRCC) founded by TU Dresden and Purdue University and expanded with the participation of Oklahoma State University (OSU) and Karlshure Unversity of Applied Sciences. At Purdue, he also serves on the Experiential Learning Committee since Fall 2020 and the Purdue Military Programs Committee that oversees all the ROTC educational programs. His research focuses on fundamentals and applications of emerging HVAC&R technologies and their equipment to high performance buildings, thermal management systems, military applications and deep space habitats. Dr. Ziviani runs a reseach program that leverages over $2M in industry-funded projects as well as over $4M in federal grants through U.S. DOE BTO, AMO, U.S. DOD and NASA. Dr. Ziviani is a member of the Cooling Technologies Research Center (CTRC) at Purdue conducting research on thermal mangement of EVs and pumped two-phase loops, and is Co-I of the Resilient Extra-Terrestrial Habitats Institute (RETHi) with focuss on ECLSS, thermal mangement and cyber-physical testing. He has authored and co-authored more than 150 archival journal articles and conference papers. He is also the co-author of 4 book chapters and co-inventor of 3 provisional patents and 1 awarded patent. Dr. Ziviani is part of the organizing committee of the bi-annual Herrick Conferences at Purdue since 2016 and will chair the 2023 International Refrigeration and Air-Conditioning Conference.

Dr. Ziviani is actively involved with ASHRAE and the International Institute of Refrigereration (IIR). He currently serves as the Chair of TC8.1 and TC8.3, Vice-Chair of TC10.7, and voting member and Program SubCom. Chair of TC8.11. He is CEC Member since July 2021, and serves in the CEC ExCom as Topical Conferences Subcommittee Chair since July 2022. Moreover, Dr. Ziviani is Member of UNSC/IIR Board of Directors and is Commission Member B2 “Refrigerating Equipment” for the U.S. Dr. Ziviani also serves as Membership Officer to USNC/IIR.

Dr. Ziviani has been recognized for his academic excellence. He received the 2021-22 Teaching for Tomorrow Fellowship Award from Purdue University and was nominated to the list of “Outstanding Engineering Teachers” during Spring 2021, Fall 2021, and Spring 2022. Moreover, he is the recipient of the 2023 ASHRAE New Investigator Award.

Topic
The role of flammable refrigerants (A2L/A2/A3) in heat pumps for residential and commercial buildings
The phase down of high-GWP refrigerants in the mid- and long-terms requires trade-offs between GWP and flammability. Efforts are being made to pursue natural refrigerants such as propane (R290) in residential applications (e.g., mini-split systems) especially in Europe and Asia, but in the U.S. there are still several barriers to be overcome to adopt mildly- and flammable-refrigerants. This lecture provides an overview of the state-of-the-art flammable refrigerant in heat pump applications for residential and commercial buildings, outlines current regulatory limitations and provides an outlook on research activities.
Emerging HVAC&R Technologies and Applications
The Heating, Ventilation, Air Conditioning, and Refrigeration (HVAC&R) industry has heavily relied on vapor compression cycles since the early part of the 20th century. However, due to environmental concerns and advances in both material and thermal sciences, advanced heat pumping and non-vapor compression technologies have gained attention as potential alternatives to conventional HVAC&R systems. Non-vapor compression technologies, also termed not-in-kind technologies, include solid-state refrigeration technologies, thermally- driven cycles, gaseous cycles, chemical and membrane heat pumping technologies, desiccant systems among others. This lecture provides an overview of the state-of-the-art heat pumping technologies, current limitations, and research directions.
Techno-economic and Climate-based Evaluations of Advanced Heat Pumping and Water Heating Technologies
Low-GWP refrigerants and advanced heat pumps are gaining attention to replace or integrate existing heat pumping and water heating technologies while meeting electrification and decarbonization targets. Assessing new equipment requires realistic building loads, climate conditions, utility rates and operating costs among other aspects. This lecture will present a systematic methodology to compare conventional heat pumping technologies and advanced systems while accounting for realistic building behaviors, user schedules, climate conditions and utilities. The analyses yield quantitative investigations of performance trade-offs of climate-based equipment solutions, and investigation of a broad range of emerging technologies with realistic benchmark cases (building type, climates, load profiles, performance rating).