Projects

CLIENT

Dominion Transmission, Inc.
P.O. Box 25459
Richmond, Virginia 23260-5459

SCOPE OF WORK

Design and supply of an acoustic building with a mechanical ventilation system for a gas compressor station.

ACOUSTICAL REQUIREMENTS

The client specifications called for the walls and roof to have a minimum sound transmission class (STC) of 54 with a sound absorptive noise coefficient (NCR) of .90.

NOISE SOURCES

Caterpillar 3616 engine driving a WG74 Superior reciprocating compressor, two Dresser-Rand TCV10s reciprocating engines and two Ingersoll Rand 75 hp air compressors.

SILENCING SOLUTIONS

INNOVA utilized its highly acoustic G assembly with an STC rating of 54 for the walls and roof.

The design and supply of the mechanical system included noise attenuation measures for the two roof-mounted air relief vents and wall intakes.

Post-construction testing confirmed that the compressor station was below the Federal Energy Regulatory Commission (FERC) guidelines.

UNIQUE PROJECT HURDLES

The building is situated high on a hill overlooking a rural residential community that is very sensitive to the noise generated by a compressor station. A standing seam roof and concealed fastening wall system were requested by the client and incorporated into the design. The client also requested the entire building to be erected in five weeks.