The main mechanical room was relocated from the penthouse to the 10th floor through discussions and analysis of the benefits. This change allowed savings in both power and materials for the project. Structurally, the relocation of the mechanical room allowed the column load to decrease. Mechanically, the design change reduced the total distance of air, heated hot water, and chilled water movement needed in the building.
14 levels of office space was conditioned utilizing a raised floor ventilation air distribution system with radiant cooling and heating ceiling panels to allow for future flexibility. This system allowed the radiant panel boards to remove the sensible load to its maximum capacity, while the under floor air distribution (UFAD) system operated based on the dehumidification and ventilation load.
TLD/CT
MEP Relocation
Raised Floor System
Tri-Generation
MECHANICAL HIGHLIGHTS
A tri-generation system was selected as the strategy to heat, cool, and power the building due to its sustainable and redundant characteristics as well as being energy efficient. Reciprocating Engine Generator was used to produce power matching the thermal load, while Fuel Cells efficiently produced power to meet the remaining electrical demand. Redundancy in design allowed for a fully operable building in the event of either electric or natural gas utility service interruption with Diesel Generator Backup in the event of a full utility failure.
To better address resiliency, reliability, and occupant comfort, the team worked in a collaborative and integrative manner to develop the concept of a tuned liquid damper/cooling tower combination. This combined system will allow for an increased comfort factor under everyday loading situations while being operated as a cooling tower in order to reject heat from the mechanical system.
MECHANICAL EXECUTIVE SUMMARY
