Timothy G. Wentz, P.E., HBDP, LEED ® -AP
Construction Management Department
University of Nebraska
Lincoln, Nebraska


Prof. Wentz graduated from the University of Nebraska with a Bachelor of Science degree in Mechanical Engineering and a Master’s degree in Business Administration. He is a registered professional engineer in Nebraska, Colorado and Wyoming. Additionally, he holds both Master Heating Contractor and Master Plumbing Contractor licenses, is a LEED ® – Accredited Professional (AP-BD&C) and holds an ASHRAE certification as a High-performance Building Design Professional (HBDP). Upon graduation from the University of Nebraska – Lincoln, Tim went to work for his family’s mechanical contracting firm where he developed an expertise in design/build contracting, estimating and project management on a wide range of commercial projects across the Midwest. Since entering academia Prof. Wentz has received numerous awards and honors for his teaching and service to the HVAC industry. In 2000, ASHRAE awarded Tim the E. K. Campbell Award of Merit for outstanding service and achievement in teaching. The Mechanical Contractors Association of America (MCAA) has named Tim their national “Educator of the Year” award on three occasions, 2000, 2002 and 2004. In March of 2009, the MCAA awarded Tim its highest honor, the Distinguished Service Award and in 2015 ASHRAE awarded Tim the Exceptional Service Award. In recognition of his service to industry, in 2018 the College of Engineering at the University of Nebraska awarded Tim its inaugural Lifetime Achievement Award. Prof. Wentz is a very active volunteer within ASHRAE, where he has served as the Nebraska Chapter President for 1997-1998. He also served as Director and Regional Chair for Region IX of ASHRAE and was inducted into the Region IX Hall of Honor in 2005. ASHRAE also elected Tim a Fellow of the Society in 2005. Tim recently served as Society President in 2016-2017 and launched the Society theme for that year ‘Adapt Today to Shape Tomorrow’.

Thomas H. Phoenix, P.E., FASHRAE, LEED AP
Clark Patterson Lee
328 East Market Street, Suite 200
Greensboro, NC 27401


Thomas Phoenix is a Principal with the Architectural/Engineering firm of Clark Patterson Lee (formerly Moser Mayer Phoenix Associates) in their office in Greensboro, NC. He has a B.S. degree in engineering from NC State University. He is a Registered Professional Engineer in North Carolina and six other States and has over 30 years of experience in the design, operation and maintenance of building mechanical and energy systems in commercial, educational, government, and medical office facilities. Mr. Phoenix has been an active member of ASHRAE (American Society of Heating, Refrigerating and Air Conditioning Engineers) since 1982, and was elevated to the grade of Fellow in 2011. He is an ASHRAE Presidential Member, having served as Society President in 2014-15. He served on ASHRAE’s Board of Directors for 11 years, and has chaired the Publishing and Education Council and numerous ASHRAE committees. He currently is the Chair of the Advanced Energy Design Guides Steering Committee. Mr. Phoenix is also an ASHRAE Certified Building Energy Modeling Professional (BEMP), and a Certified Building Energy Assessment Professional (BEAP). Mr. Phoenix is active in his local community. He is a graduate of Leadership Greensboro, a member of the Leadership Greensboro Alumni Association and a past member of the Board of Trustees for the Greensboro Children’s Museum. He is a Charter Member and Past President of the Gate City Rotary Club. He served as a Committee Chairman for the Jimmy V Celebrity Golf Classic for Cancer Research for 19 years and was a leader with local Boy Scouts of America Troop 101. He is married to the former Rebecca Champion, and he and Becky have two children.

T. David Underwood, P.Eng.


T. David Underwood, P.Eng., is retired, and lives in Oakville, Ontario, Canada He was a volunteer Board member of ORAC (the Ontario Refrigeration and Air Conditioning Contractors Association) for many years and served in all executive positions. He represented ORAC and HRAI on the Canadian Standards Association B52 committee on Mechanical Refrigeration, the advisory committee that assisted the Ontario government in developing refrigeration regulations. He coauthored a trade refrigeration safety manual and served on the Refrigeration trade advisory committee for the refrigeration trade in Ontario. When David was a member of a Canadian Model National Building Code, advisory committee, he participated in writing the Building Science and Plumbing section of the 2015 edition of the code. As the 2015-2016 ASHRAE president, David Underwood was a member of the Board of Directors and the Executive Committee. He is an ASHRAE Fellow, and an ASHRAE Life Member. He also served on the Board as president elect, treasurer, two terms as a vice president and as a director-at-large. He holds the ASHRAE Exceptional Service Award, Distinguished Service Award and the William J. Collins Research Promotion Award. He is an ASHRAE Distinguished Lecturer, a member of Technical Committee 7.2, HVAC&R Construction & Design Build Technologies, and a member of the Building Performance Alliance Ad Hoc Committee. Underwood was awarded a Bachelor of Science in Civil Engineering from the University of Manitoba. Immediately after graduation, he entered the HVAC&R industry and was employed by a major products manufacturer for approximately 10 years. In 1975, Underwood founded Isotherm Engineering Ltd an HVAC&R design-build enterprise.

Malcolm “Dennis” Knight, P.E., BEMP
2018-2019 Vice President


Dennis Knight, P.E., Fellow ASHRAE, BEMP, is ASHRAE’s Vice President for the 2018-2019 term. He also serves as an ASHRAE Distinguished Lecturer and Chair of Standards Committee SPC 224 – The Application of Building Information Modeling. Prior to his 2018-2019 term as Vice President, Knight served a term on the Board as director-at-large. Most recently he served as chair of the ASHRAE BIM Multi-disciplinary Task Group and is a member of the steering committee for the annual Building Performance Analysis Conference and SimBuild. He also serves as ASHRAE’s liaison to the buildingSMART Alliance. In addition to his contributions to ASHRAE, Knight’s experience in the design, construction, operation and maintenance of high performance buildings spans over 40 years. Knight has commissioned hundreds of new buildings and audited or retro commissioned over 100 million square feet of existing commercial, federal and industrial building stock. He introduced BIM to a 30 person architectural firm and provides whole building energy simulation analysis. Knight is currently owner and CEO of Whole Building Systems, LLC, Charleston, S.C. Knight frequently lectures in the US and abroad on high performance building tools and technology and has authored numerous publications and white papers on a variety of technical topics.  He has developed curriculum and teaches on BIM, integrated building design, life cycle cost analysis, ASHRAE 90.1 and IECC energy code compliance, energy management for historic structures in hot and humid climates, and energy modeling and commissioning of energy using systems. For his time and dedication to ASHRAE and the industry, Knight is the recipient of the ASHRAE Regional Service Award and the ASHRAE Research Promotion “Top Dog.” Knight is a graduate of the College of Charleston with a Bachelor of Science in Physics and holds dual registration in South Carolina as a Mechanical Engineer and Fire Protection Engineer.

İbrahim Dinçer, Professor of Mechanical Engineering
Vice President for Strategy, International Association
for Hydrogen Energy Vice President, World Society of Sustainable Energy Technologies


Dr. İbrahim Dinçer is a full professor of Mechanical Engineering at University of Ontario, Canada and adjunct professor at Faculty of Mechanical Engineering of Yildiz Technical University in Istanbul, Turkey. Renowned for his pioneering works in the area of sustainable energy technologies and HVAC&R applications. He has authored/co-authored numerous books and book chapters, and many refereed journal and conference papers. He has chaired many national and international conferences, symposia, workshops and technical meetings. He has delivered many keynote and invited lectures. He is an active member of various international scientific organizations and societies, and serves as editor-in-chief, associate editor, regional editor, and editorial board member on various prestigious international journals. He is a recipient of several research, teaching and service awards, including the Premier’s research excellence award in Ontario, Canada. During the past four years, he has been recognized by Thomson Reuters as one of the Most Influential Scientific Minds in Engineering and one of the Most Highly Cited Researchers.

Om Taneja, Ph. D., P.E., Fellow ASHRAE
Consulting Engineer – Associated Consulting Engineers


Dr. Taneja holds a Bachelor’s degree in Mechanical Engineering from Indian Institute of Technology, New Delhi, Master’s degree in Control systems and a Ph.D. degree in Systems Sciences and Operations Research from New York University. Om is a licensed professional engineer and has been active in discussing facilities, sustainability and energy-related issues at various professional organizations. He has been an Associate Professor at Kean University of New Jersey, Dean of HVAC/Facilities Management Divisions at Technical Career Institute and has presented more than 40 technical and management papers at different national and international conferences. Dr. Taneja has more than 35 years of diversified experience in the area of design, construction, operations and maintenance of large facilities. He has been the Director of Facilities design, construction and operations for the United Nations Headquarters, General Electric Headquarters, US General Services Administration region 2 and for hospitals, various court houses. Dr. Taneja was nominated ASHRAE fellow in 2015 and is serving as a “Distinguished Lecturer” for ASHRAE.