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Holiday Party & 2017 Technical Awards Program Celebrating Excellence in Engineering Tuesday, December 5, 2017 Metropolitan Club, Oak Room 66th Floor, Willis Tower, Chicago, Illinois 2017 Excellence in Engineering Award Winners 180 Pearson Kresge Centennial Hall University of Chicago Chicago, IL Evanston, IL North Residence Hall & Dining Boiler Plant Upgrades New Construction & Renovation Commons Don McLauchlan and Ryan Hoff Scott Foster Chicago, IL Elara Engineering Affiliated Engineers Inc. New Building Sachin Anand 801 Grand Loyola Center for Transitional dbHMS Des Moines, Iowa Research & Education Energy Modeling & Improvements Maywood, IL David Eldridge & John Tsingas New Laboratory & Office Building Grumman/Butkus Associates Scott Foster Awards Presented By: Affiliated Engineers Inc. Advocate Health Care Ron Russell Boiler Optimization Oak Park District 97 Technology Awards Chair 6 Chicago-Area Hospital Sites Administration Building Dan Doyle & Tim Jendrycki Oak Park, IL Frank Moccio Grumman/Butkus Associates New School District 97 Offices Illinois Chapter President Sachin Anand Austin Gardens Environmental dbHMS Fiona Martin Educational Center Event Chair Oak Park, IL Shirley Ryan AbilityLab Geothermal Net Zero Building Chicago, IL More information about these and other Mark Nussbaum Research & Rehabilitation Award-winning projects is posted online Architectural Consulting Hospital at www.illinoisashrae.org. Engineers Michael Stark Environmental Systems Design Chamberlain Corporate Headquarters UIUC Chemistry Annex Our Judges Oak Brook, IL Renovation & Addition Michael Belczak — Primera Engineers, Ltd. New Office Center Champaign, IL Suzan Sun-Yuan John O. Varley Brian Berg, Sr. — Berg Engineering Environmental Systems Design Harley Ellis Devereaux Consultants Randolph Harding — Singh + Associates, Inc. Chicago Bar Association Building Unity Temple Restoration Tom Kelleher — AMS Mechanical Systems Chicago, IL Oak Park, IL Tony McGuire — McGuire Engineers Retro-Commissioning Project New Geothermal-Based HVAC Syed Suhail Mark Nussbaum Ron Russell — Russell Engineering Sieben Energy Architectural Consulting Michael Streich — Environmental Systems Engineers Design The Franklin Reid Woods — Midwest Applied Solutions Chicago, IL ComEd Monitoring-Based Commissioning Syed Suhail Sieben Energy 801 Grand Assessment, Modeling, and Improvements Building Data: 920,317-square-foot (excluding parking), 44-story office building in downtown Des Moines, IA. Originally constructed in 1989, the building combines high-rise offices and a podium level with shops, a restaurant, a lobby, and parking. It is owned by Principal Financial Group. Scope of Project: G/BA performed an energy audit and created a calibrated energy model as part of a Level 3 report by owner’s representative JLL. The firm also did airflow modeling to determine measures to mitigate stack effect and air infiltration. The projects were key to achieving the owner’s goals of reducing energy costs, improving IAQ, and achieving LEED-EB O&M certification. The project resulted in energy cost savings of approximately $424,000 per year, based on a 27.8% reduction in site EUI, with improved IAQ in the podium levels. Project Summary: KƌŝŐŝŶĂůůLJŵŽĚĞůĞĚŵĞĂƐƵƌĞƐ 801 Grand is all-electric, other than natural gas for cooking and for podium-level retail. Mechanical systems include four air-handling units and the cooling plant (including two chillers and associated pumps). Air from the AHUs is supplied through a common distribution system to series fan power terminals and VAV terminals on the floors. Each floor’s main air distribution ductwork has isolation dampers, allowing a subset of floors to receive &ŝŐƵƌĞϭ͗ƵŝůĚŝŶŐĞYh^dZĞŶĚĞƌŝŶŐ &ŝŐƵƌĞϮ͗ƵŝůĚŝŶŐsŝĞǁĞĚĨƌŽŵ'ŽŽŐůĞDĂƉƐ airflow while the remainder can be closed off. Base building electrical service is provided by ĂůŝďƌĂƚŝŽŶDĞƚƌŝĐDŽĚĞůĞĚZĞƐƵůƚDΘsdĂƌŐĞƚŽŵŵĞŶƚ two electric meters maintained by MidAmerican ǀĞƌĂŐĞDŽŶƚŚůLJhƐĂŐĞ ͲϮ͘ϭйƚŽϭϭ͘ϰй нͬͲϱƚŽϭϬй KŶůLJƉƌŝůŽƵƚƐŝĚĞŽĨƌĂŶŐĞ Energy. Tenant floor electricity is provided to the ŶŶƵĂůhƐĂŐĞsĂƌŝĂŶĐĞ ϰ͘ϵϲй ϱй ĐŚŝĞǀĞĚ ŶŶƵĂůĂƚĂs;ZD^Ϳ ϲ͘Ϭй ϭϱй ĐŚŝĞǀĞĚ͕ŐŽŽĚƐĞĂƐŽŶĂůŵĂƚĐŚ building through three electric meters. ,ŽƵƌůLJĂƚĂDŵŽŶƚŚ ϰ͘ϲй нͬͲ ϭϬй WĞƌ^,Z'ƵŝĚĞůŝŶĞϭϰ͕ŐŽŽĚŵĂƚĐŚ ,ŽƵƌůLJĂƚĂs;ZD^ŵŽŶƚŚͿ ϭϰ͘Ϯй ϯϬй WĞƌ^,Z'ƵŝĚĞůŝŶĞϭϰ͕ŐŽŽĚŵĂƚĐŚ In 2012, owner Principal Financial Group was occupying 25 floors and renting 12 floors to ĚĚŝƚŝŽŶĂůŵĞĂƐƵƌĞƐ ϮϬϭϭϴϬϭ'ƌĂŶĚŶŶƵĂůĞŵĂŶĚWƌŽĨŝůĞ tenants. PFG wanted to relocate to nearby ϲϬϬϬ ϱϬϬϬ buildings, opening more floors in 801 Grand for ϰϬϬϬ tenant rentals. To support that goal, JLL worked ϯϬϬϬ with PFG toward two main improvements: ϮϬϬϬ ϭϬϬϬ • Certify the building in LEED-EB O&M to Ϭ ϭϭϮϯϰϱϲϳϴϵϭϬ ϭϭ ϭϮ ϭϮ demonstrate sustainable practices, including DŽĚĞůĞĚŬt ĐƚƵĂůŝůůŝŶŐŬt reducing operating costs. • Improve indoor environmental quality pertaining to air infiltration during cold weather. Indoor Air Quality: Thermal comfort in the lobby and skyway connections have been greatly This objective addressed poor conditions in the lobby and skyway connections, as well as improved by controlling temperature, retaining humidity, and reducing air velocity. limiting the number of hours when AHUs could be turned off overnight due to high rates of Innovation: CONTAM modeling was a key component allowing the client to achieve its goals. infiltration when the units were turned off. Installation of passive controls for stack effect and infiltration allowed the building to save G/BA worked with JLL to provide a Level 3 energy audit, including a calibrated energy model, energy instead of trying to control infiltration using fan energy. to satisfy the first goal. The engineer provided an energy model of the building pressurization to O+M: New controls allow staff to determine status and recommend repairs more efficiently. achieve a reduction that would meet the second goal. Increasing the number of terminal units on the BAS provides faster insight to building CONTAM Modeling: CONTAM modeling demonstrated that physical barriers would be more operators. LED lighting reduces the time spent replacing lamps. O+M costs were estimated to effective for mitigating air infiltration than HVAC-based countermeasures. Passive measures be reduced by a bit over $100,000, above and beyond energy cost reductions. installed included new doors on the skyway linking 801 Grand to other buildings, reducing Cost Effectiveness: Eleven no- or low-cost measures were implemented, totaling $224,515 in negative pressure from other facilities. High-speed doors were added to the parking levels. annual savings with payback less than one year. Seven projects were implemented as capital Calibrated Energy Model and Level 3 Energy Audit: G/BA helped JLL produce the Level 3 improvement measures with longer payback, but achieving PFG’s goal of a deep energy retrofit report. JLL secured pricing for the recommended energy conservation measures and served to increase leasing activity and LEED certification. Total bundled implementation costs were as CM during implementation. G/BA calculated energy consumption compared with CY 2011 $3.05 million, with verified annual savings of $424,175 and a combined simple payback of 7.2 interval data provided by JLL. High levels of calibration were achieved through several strategies: years. This rate of payback is outstanding for a deep energy retrofit project in an area that has some of the nation’s lowest prices for power. Lighting and controls retrofits on tenant floors • The engineer deployed current-sensing data loggers for several items of process equipment, also provided cost savings for the occupying firms, in addition to contributing to the ENERGY including a sample of elevators, and for the HVAC control air compressors. STAR score improvement from 40 to 68, and site EUI reduction of 95.6 kBtu/ft2 to 69.6 kBtu/ft2. • The engineer deployed temperature, humidity, and light sensing data loggers in a sample of Environmental Impact: Operating fans at lower speeds reduces filter replacements and waste. occupied floors to inform the hourly schedules used in the model. Optimization of the discharge air temperature control reduces chiller run time and, therefore, • Nighttime and Sunday walk-throughs allowed the engineer and JLL to observe conditions refrigerant use. Reducing chiller operation reduces water use, accompanied by reductions in when occupancy was low, to establish an accurate baseline and to identify opportunities to condensate waste, sewer discharge, and related treatment. ENERGY STAR Portfolio Manager reduce lighting and HVAC energy use. shows a reduction of 4,783 metric tons of CO2e, based on energy savings over the baseline year. • Interval data allowed an analytical approach to determining daily and seasonal schedules. Acknowledgements: In addition to Joe Galambos and Brian Lecher from JLL, additional project team Energy Efficiency: Since energy conservation measures were implemented from 2013 to 2016, members included PFG staff Ryan Carpenter, Bill Johnson, David DeBo, and Randy Brown. Jarod the building’s electricity use is down 27.8%. A 20% improvement was needed to use a LEED Stockel from Baker Group was the mechanical contractor, and Garry Caldbeck from SystemWorks pilot credit for alternate compliance with the minimum energy performance prerequisite. provided LEED certification support and commissioning of installed projects. Grumman/Butkus Associates Energy Efficiency Consultants and Sustainable Design Engineers 820 Davis Street, Suite 300 847.328.3555 phone Regional Locations: Chicago