KNC model VRS, straight and elbow ventilation silencers were incorporated into the inlet and outlet ventilation design. Special turning vanes were designed via computational fluid dynamics and KNC’s own state-of-the-art, proprietary, finite element, acoustic analysis program. The walls, roof and doors were manufactured of KNC model HTL-4, high transmission loss panels with tongue and groove connections for quick and easy installation. All products are cost effective and backed by KNC’s extensive, independently tested database and history of proven performance. The sound enclosure dimensions are 17'-0" W x 17'-0" H x 56'-0" L with a 10'-0" W x 12'-0" H removable wall section. The panels were manufactured of solid outer and perforated inner skins manufactured of satin finish (millphosphatised) galvanized steel, type G90 to readily accept field painting.
As stated, time constraints were demanding on this project. Manufacturing time took only 10 weeks after the submittal drawings were approved by the client. During that time the client installed the foundation and concrete curb. A two-phase installation time was used: 3 days for structural steel framing and 14 days for NOISEBLOCK™ sound barrier panels, silencers, doors and flashing. The client installed a roof membrane and field painted the enclosure after installation. KNC offered field supervision of the installation and the site was visited regularly by the KNC representative during installation. Additional projects are in the planning stages incorporating the NOISEBLOCK™ system.