Noise management programs are an integral part of airport management and have had great repercussions on traffic management and ground operations in recent years.
VALIS GREs are developed from years of experience in noise reduction, structural engineering and airport supplies. The features described next work together to maximize noise reduction while improving airflow to minimize downtime for testing operations.
With most Ground Run-up Enclosures airport infrastructure managers are faced with the need for an investment that as little or no return but is an absolute requirement for the welfare of the community and the environmental regulations.
Beside noise reduction this investment decision must also take into account the characterization of limiting aircraft, number of run-ups, predominant wind directions and available space on the airport.
In an ever changing business environment, optimization of this investment can be achieved by choosing a VALIS upgradable Ground Run-up Enclosure. VALIS GRE’s are designed for each ICAO aircraft class but allow for class upgrades with comparable little future investment. Why over-invest in an infrastructure when it is now possible to spend gradually as your airport requirement grows?
VALIS GRE is U shaped and totally envelopes the aircraft. The sidewalls in the enclosure are slightly angled in order to reduce interference and turbulence under crosswinds. This means the open end of the enclosure is larger than the bottom end. The walls of the structure are inclined at the intake side to reduce noise level transition effects.
The walls of the enclosure are designed to be perfectly flat, thus eliminating the accumulation of dust, snow and other light debris in eventual crevices or gaps. These flat walls do not hinder noise performance as primary reflection is low, due to our highly absorbent acoustic panels.
COMPLAGE® acoustic panels have been used and constantly improved for 30 years in over 600.000 m2 of noise barriers. These panels are designed to maximize noise reduction in each of their applications, from road and railways to industrial installations and airports.
Tested in accordance to European norms, COMPLAGE® acoustic panels are rated classes A4 and B3, the highest levels for sound absorption and insulation.
Fabricated with a front end in expanded aluminum and a steel casing COMPLAGE® panels are a perfect match of durability, structural stability and cost. The panels are powder coated in thermo-fused polyester and can be supplied in any RAL color code.
The absorbing side of the panels has a variable transparence shape that maximizes absorption of sound while it minimizes water and dust entry to the panel. The interior of the panel is made of a sound absorbing inert material that is incombustible.
VALIS GRE’s use jet-blast deflectors next to the rear of the enclosure wall. These deflectors redirect the flow from the engines upwards but they also reduce the velocity of the flow thus reducing aerodynamic noise from the flow. These deflectors are fabricated from expanded steel or aluminum, supported by a steel frame specially designed to resist the engines jet-blast.
VALIS enclosures can feature a wind monitoring station and a climatized control room.
Vális- Engenharia e Inovação, S.A.
Rua Inácio Perdigão, Lote 7, Zona Industrial
2500-755 Caldas da Rainha
Portugal
Tel: +351 262 845 278*
Fax: +351 262 845 280*
*Cost of a call to the portuguese fixed line network
