October 23, 2019
Radiant cooling and heating systems provide an opportunity to achieve significant energy and peak demand savings compared to conventional systems. As the use of these systems grows, particularly in zero-net-energy (ZNE) and other advanced low-energy buildings, the correct design and operation becomes a critical aspect of meeting expected performance.
Speakers at this full-day symposium included engineers, architects, builders, commissioning specialist and owners who are creating high-performing non-residential buildings in California and elsewhere. Presenters also include UC Berkeley researchers who recently completed a multi-year study that led to new insights, reports, case studies and design tools. This event was co-hosted by the Center for the Built Environment, the ASHRAE Golden Gate Chapter and the PG&E Pacific Energy Center, and with financial assistance from the sponsors listed below.
This event took place at the PG&E Energy Center in San Francisco. It was free and open to the public as an on-site session and by live webinar.
Speakers and Presentations
Fred Bauman, PE, ASHRAE Fellow
Project Scientist, Center for the Built Environment, UC Berkeley
Presentation: New Findings on Radiant System Comfort and Energy Performance
Fred S. Bauman leads research on advanced low-energy HVAC systems, such as radiant, underfloor air distribution (UFAD), displacement ventilation (DV), and personal comfort systems (PCS). Fred was the Principal Investigator for a $3M, four-year research program on radiant systems funded by California’s EPIC Program that recently concluded in April 2019. He has written more than 60 technical articles and was the author of the first UFAD Design Guide, published by ASHRAE in 2003.
Anthony Bernheim, FAIA, LEED Fellow
Healthy and Resilient Buildings Program Manager, San Francisco International Airport
Presentation: Integrating Radiant and Displacement Systems at SFO Terminal to Meet Strategic Sustainability Goals
Anthony Bernheim is a visionary and respected leader in smart, energy efficient, high performance building. He has devoted his career to pioneering the impact of buildings on indoor air quality and human health. With a record of designing and implementing an integrative approach and process to sustainability, Anthony contributes to improving global and human health, comfort and wellness in the built environment. Anthony is currently the Healthy and Resilient Buildings Program Manager at San Francisco International Airport where he manages the Net Zero Energy (sustainability) and the Activation Planning Services (commissioning, activation and simulation) programs for the Airport’s Capital Improvement Program.
Jingjuan Dove Feng, PhD, PE
Technical Project Manager, Research and Technology Commercialization Advanced Energy, TRC Energy Services
Presentation: Construction and Energy Costs of Radiant Systems in the California Bay Area
Jingjuan Dove Feng is a Technical Project Manager at TRC within the Research and Technology Commercialization group. Ms. Feng has a PhD from UC Berkeley and has over 10 years of experience in building science and mechanical systems design and control. Her work includes research and design of high-performance buildings, code and standard development and project management. She has actively participated in several research projects on the topic of radiant systems and has published several journal articles on radiant systems, including cooling load and cooling capacity analysis methods, modeling approach and model predictive control of high thermal mass systems.
Lyn L. Gomes, PE, CCP, LEED AP, CLCATT
Senior MEP coordinator at DPR Construction
Presentation: High Performance Radiant Systems: A General Contractor's Perspective
Lyn L. Gomes brings her experience as an HVAC engineer together with her commissioning and construction knowledge to help make building systems not only work, but work better together. Lyn is chair of the Building Commissioning Association’s national conference and a board member of the Building Commissioning Association. In her spare time she serves on the industry advisory board of Techbridge, an after school STEM program for girls. Lyn received her Bachelors of Science from Cal Poly San Luis Obispo.
Paul Raftery, PhD
Professional Researcher at the Center for the Built Environment, UC Berkeley
Presentation: New Design Tools and Controls for Load-shifting with Radiant Systems
Paul Raftery’s focus is on improving building energy efficiency by investigating advanced integrated HVAC systems. He holds a PhD in Engineering for developing a new method for calibrating building energy models to detailed measured data. He has over a decade of hands-on experience in HVAC engineering, controls, fault detection, simulation, and new technology development. He is a Fulbright Fellow, an active ASHRAE member, and a co-Principal Investigator on two California EPIC research projects: a recently completed $3M four-year project on radiant systems, and an ongoing $2M three-year project on smart ceiling fans.
Peter Rumsey , P.E., LEED AP BD+C, CEM, FASHRAE
Founder and CEO, Point Energy Innovations
Presentation: Shift: Why radiant systems are the future of low energy and decarbonized buildings
Peter is the founder and CEO of Point Energy Innovations, a new consulting firm focused on working directly with owners and developers in the U.S. and globally on the next generation of profitable, low-energy, high-performance and decarbonized buildings and industrial facilities. He has received numerous awards including the Renewable Energy Innovator of the Year and ASHRAE’s prestigious Award of Engineering Excellence, only awarded five times in ASHRAE’s 100-year history. He is a graduate of UC Berkeley and an ASHRAE Fellow. For over a decade he has taught a graduate level class on advanced buildings at Stanford University.
Michele Sagehorn, CEM, LEED AP
Principal and Commissioning Authority, Red Car Analytics
Presentation: Fine Tuning Radiant Systems: Challenges and Lessons Learned from Commissioning Large-scale Commercial Buildings
Michele Sagehorn has worked for over 15 years on high performance buildings, including as a leading commissioning agent. From her background as a quality assurance engineer in the automotive industry, she brings to commissioning a standard of care that is unique to the built environment. Her experience spans numerous project types, including leadership on eight ZNE and twelve carbon-neutral buildings. In 2018, Michele and her colleagues launched Red Car Analytics, a company dedicated to engaging clients in building and operating high performance buildings through analytics.
Featured image: Sonoma Academy Janet Durgin Guild & Commons. Architecture by WRNS Studio, M/P by Interface Eng. See full credits. Photo by Michael David Rose.
The program is approved for 6 learning units/HSW under AIA Continuing Education System (AIA CES).
- Participants will see examples of buildings with high-performance radiant heating/cooling systems in non-residential buildings and be able to name at least two key factors that shape engineering and design of these systems.
- Participants will learn how advanced energy simulations enable design and guide operations of high-mass radiant systems to reduce and shift peak heating/cooling loads and reduce energy costs.
- Participants will gain an overview of recently completed research from the Center for the Built Environment at UC Berkeley on optimizing radiant systems including case studies, design and operation tools and methods, and other key research findings, and learn where detailed information on the research is available.
- Participants will gain an overview of architectural integration of radiant systems and be able to name at least three common owners’ criteria for acoustics, architectural finishes and structural integration.
- Participants will learn common contractor concerns, how to avoid gaps in scopes of work for radiant systems, and can summarize project management approaches to maintain quality in design-building project delivery.