The predesign process established a LEED Gold rating as a target benchmark for project performance for this 8-story urban office building. As part of the design team, we immediately focused on pursuing integrated design solutions to reduce energy usage.
Incoming ventilation air is preconditioned by heat and humidity extracted from exhaust air by an enthalpy wheel. Sensors monitor carbon dioxide levels and control fresh air flow directly to each area of the building as needed. The smart building controls help regulate systems for efficient operation.
An ice thermal energy storage system employs load shifting and enables the chillers to operate at peak efficiency. Ice thermal storage also allows the building cooling system to operate off-grid with the support of a backup generator.
– Establishing LEED Gold as a target benchmark during predesign and aligning system strategies to that performance goal.
– Implementing an energy recovery strategy to precondition outdoor air using heat and humidity transfer from exhaust air.
– Deploying CO₂-based demand-controlled ventilation to deliver fresh air where needed and reduce unnecessary outside-air loads.
– Integrating smart building controls to regulate equipment and sequences for efficient operation.
– Designing and implementing ice thermal energy storage for load shifting and improved chiller efficiency.
– Enabling cooling resiliency/off-grid operation through thermal storage supported by a backup generator.
– Advancing constructability and schedule certainty through industrialized preassembly, including modularized mechanical units and shop-built penthouse assemblies (as applicable to related City Center work referenced in the copy).
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