UPCOMING MEETINGS
TC 6.8 Research Subcommittee
Tuesday, January 9 12:00 PM – 1:30 PM CST
Virtual
Chair: Harrison Skye
Session Type: Technical Committee
Meeting Format: Virtual
Location: Virtual
This meeting will take place virtually. Virtual attendees can click "Enter Meeting" under Resources below to join the meeting on the noted date and time. All times are listed in Central Time (CT). Meeting number: 2346 680 1337 Password: hKP7BZfpx59 Host key: 825657
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TC 6.8 Applied Heat Recovery
Tuesday, January 16 10:00-11:00 AM CST
Chair: John Filler
Session Type: Technical Committee
Meeting Format: Virtual / Microsoft Teams meeting
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TC 6.8 Handbook & Programs
Sunday, January 21 4:00 PM – 6:00 PM CST
Chair: Steve Kavanaugh
Session Type: Technical Committee
Meeting Format: Hybrid
Location: Marriott Marquis Chicago, Glessner House ABC (3)
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TC 6.8 Geothermal Heat Pump and Energy Recovery Applications
Tuesday, January 23 3:00 PM – 5:00 PM CST
Chair: Howard Newton
Session Type: Technical Committee
Meeting Format: Hybrid
Location: McCormick Place West, W180 (1) Location: McCormick Place West, W180 (1)
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Seminar 18: Thinking Outside the Box: Using 40% Tax Credits for Thermal Storage Systems
Sunday, January 21 1:30 PM – 3:00 PM CST
Program Level: Basic Program Track: HVAC&R Systems and Equipment Session Type: Seminar Location: Marriott Marquis Chicago, Great Lakes E Show 1 more tag
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Summary: The Inflation Reduction Act of 2022 provides tax credits for thermal energy storage systems in residential and commercial buildings. Project engineers will be challenged to think outside the box and develop new solutions. This will include using ice storage to heat buildings in cold climates (< 0F), using phase change materials to shift peak electric demand in cold storage warehouses and grocery stores, and improving the effectiveness and efficiency of dedicated outdoor air systems (DOAS).
Chair: Daniel Pyewell
Technical Committee: 6.9 Thermal Storage
Location: Marriott Marquis Chicago, 2nd Floor, Great Lakes E
Seminar 18: Presentation 1: Heating with Ice: Status of Pilot Project in Wisconsin Training Facility
Sunday, January 21 1:30 PM – 1:50 PM CST
Heating with Ice: Status of Pilot Project in Wisconsin Training Facility Presenting Author: Brian Fiegen, Systems Development Leader, Trane Technologies, Melbourne, FL, USA
Many cities in North America are prohibiting natural gas for space heating. They are encouraging buildings to utilize electric heat pumps. In temperate climates, air-source heat pumps will work, but in cold climates (< 0F), they will be challenged and electric resistance heat may not be an option. A novel concept--heating with ice--uses the water in an ice storage tank as a source of heat. Integrating ice tanks, heat recovery chillers, and air-source heat pumps can provide heating in ambient conditions of -30F. A pilot system is being installed in LaCrosse, WI and should be operational for the 2023-2024 season.
Learning Objectives: • Understand how ice storage can be a source of heat for commercial buildings • Understand the limitations of air-source heat pumps and the impact of electric resistance heat on the grid.
Location: Marriott Marquis Chicago, 2nd Floor, Great Lakes E
Seminar 18: Presentation 2: Phase Change Materials for Thermal Storage in Warehouses
Sunday, January 21 1:50 PM – 2:10 PM CST
Phase Change Materials for Thermal Storage in Warehouses Presenting Author: Stan Nabonzy, Director of Thermal Energy Storage, Michaels Energy, LaCrosse, WI, USA
Thermal Energy Storage can be applied to refrigerated warehouses. It can significantly reduce Grid-Scale load and provide a cost-effective alternative to Lithium-ion batteries. Through case studies and examples, the results of TES shifting load and creating efficiency will be shown offering valuable insights for engineers, utilities and customers. This topic will advance participant’s understanding of how TES is applied in permanent load reduction application in DER or RA type applications. Refrigerated or air-conditioned spaces can utilize TES to curtail load during the most expensive periods of the day and shift load to off peak.
Learning Objectives: • Define how Thermal Energy Storage for refrigeration based business can decarbonize buildings, lower costs, and create resiliency for the energy grid. • Describe how utilities and customers have benefitted from TES in refrigeration case examples • Understand the opportunities for phase change materials in supermarkets and refrigerated warehouses to reduce peak electric demand and provide flexibility for the grid.
Location: Marriott Marquis Chicago, 2nd Floor, Great Lakes E
Seminar 18: Presentation 3: Ice Storage and DOAS Optimization
Sunday, January 21 2:10 PM – 2:30 PM CST
Ice Storage and DOAS Optimization Presenting Author: Bruce Lindsay, PE, Trane Technologies, Melbourne, FL, USA
Ice storage systems permit the building to decouple the ventilation air and the conditioned air in the space, and permit different chilled water temperatures to optimize dehumidification and improve energy efficiency. Typically, we design for 40F CHW for the DOAS and 57F CHW for the VAV coils. This can be accomplished using a single chiller. However, if you integrate ice storage, you increase energy efficiency and the chilled water plant qualifies for a 40% tax credit.
Learning Objectives: • Understand the opportunities for DOAS systems to optimize performance and reduce costs using TES to secure tax credits. • understand the benefits of a sensible-only cooling terminal system.
Location: Marriott Marquis Chicago, 2nd Floor, Great Lakes E
rage systems permit the building to decouple the ventilation air and the conditioned air in the space, and permit different chilled water temperatures to optimize dehumidification and improve energy efficiency. Typically, we design for 40F CHW for the DOAS and 57F CHW for the VAV coils. This can be accomplished using a single chiller. However, if you integrate ice storage, you increase energy efficiency and the chilled water plant qualifies for a 40% tax credit.
Learning Objectives: • Understand the opportunities for DOAS systems to optimize performance and reduce costs using TES to secure tax credits. • understand the benefits of a sensible-only cooling terminal system.
Location: Marriott Marquis Chicago, 2nd Floor, Great Lakes E
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Seminar 19: LIVESTREAM: Beneficial Electrification
Sunday, January 21 3:15 PM – 4:45 PM CST
Program Level: Intermediate Program Track: HVAC&R Systems and Equipment Session Type: Seminar Days: Sunday, January 21
Summary: Electrification is a common topic on many building owners' agenda. Many owners are being pushed to decarbonize their building or campus. In some owners' mind, this mostly requires reducing the scope 1 (direct combustion in building or campus) emissions but this simple approach can cause scope 2 emissions to exceed the scope 1 savings, resulting in a net increase in carbon dioxide emissions. Heat pump systems, and specifically ground source heat pumps, in colder climates can accomplish a reduction or elimination of scope 1 emissions without increasing the resulting scope 2 emissions, i.e. beneficial electrification.
Chair: Svein Morner
Technical Committee: 2.8 Building Environmental Impacts and Sustainability
Co-Sponsoring Committee: 6.8 Geothermal Heat Pump and Energy Recovery Applications
Other Sponsoring Committee: 4.2 Climatic Information
Seminar 19: Presentation 1: Beneficial Electrification of Mcfarland, WI Public Safety Building
Sunday, January 21 3:15 PM – 3:35 PM CST
Beneficial Electrification of Mcfarland, WI Public Safety Building Presenting Author: Andrew DeRocher, HGA, Minneapolis, MN, United States
McFarland (climate zone 6) Public Safety Building was designed and constructed to be an all electric net zero energy facility. This presentation will describe the net-zero energy journey through the design, construction and operation and share the successes as well as the lessons learned throughout this process. Andy will discuss how the heating load was minimized and the renewable energy systems was sized to generate enough energy to cover the heating load which is typically the biggest challenge when creating net zero energy facilities in northern climates.
Seminar 19: Presentation 2: Comed Schools Electrification
Sunday, January 21 3:35 PM – 3:55 PM CST
Comed Schools Electrification Presenting Author: Andrew Wiegand, MichaelsEnergy, La Crosse, WI, USA
There are six general categories to the Illinois public schools carbon free assessment program. The program aims to show multiple carbon solutions for each school. All are important but schools appear generally drawn toward one of them; solar. Ignoring all else because of their general lack of public appeal, or sticker shock.
Energy Efficiency, HVAC Electrification, Insulation, WELL, electric vehicles, are included but hurdles such as electric load, time commitments, cost, and personnel appear too big.
The way to get to carbon neutral is using multiple paths. If schools concentrate on only solar, carbon neutrality will be hard to reach.
Seminar 19: Presentation 3: Dunkelflaute (Dark Doldrums) Defrosting of Air-Source Heat Pumps
Sunday, January 21 3:55 PM – 4:15 PM CST
Dunkelflaute (Dark Doldrums) Defrosting of Air-Source Heat Pumps Presenting Author: Eric Peterson, PhD, PE, CEng, Visiting Research Fellow-Univ. of LEEDS, Leeds, West Yorkshire, United Kingdom
This presentation will address cold climatic constraints of air-source heat-pump (ASHP) operation that may improve the business case for drilling geothermal heat exchangers. ASHP evaporators need to be repeatedly reverse-cycled to pulse hot gas through “evaporators” to defrost frozen condensate during conditions of gloomy fog to 6°C. Frost build-up on air source heat exchanger surface decrease the system coefficient of performance (COP). Unfortunately, such gloomy fog conditions coincide with failure of renewable energy generation from rooftop solar and off-site windfarms.
Seminar 19: Presentation 4: Comprehensive Decarbonization Planning for Diverse County-Owned Buildings
Sunday, January 21 4:15 PM – 4:35 PM CST
Comprehensive Decarbonization Planning for Diverse County-Owned Buildings Presenting Author: Russell Knudson, pe, HGA, Minneapolis, MN, United States
Owners and operators of large real estate portfolios have the greatest opportunity in the global effort to combat climate change by decarbonizing their operations. Determining the highest value properties to focus a decarbonization effort requires forethought, planning, and an ability to continually re-focus the effort to other buildings. We will present the methods used to solicit, structure, evolve, and accomplish a comprehensive energy/emissions capital planning study of over one million square feet. The study resulted in a long-range decarbonization capital plan that includes approximately 2,800 tons CO2e mitigated annually, $17 million in IRA incentives, and $2 million in energy savings.
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