Natural gas, a very essential source of energy is found naturally in the earth’s crust. Natural gas is used everyday across the world for heating, cooking and more. It must be obtained from deep within the earth’s crust, refined and then transported to various locations where it can be processed for use. The process of transporting and storing natural gas is what is referred to as Gas Transmission. In keeping with various occupational standards as well as any local or state noise regulations, it is the responsibility of gas transmission companies to ensure that appropriate noise control measures are put in place at compressor stations.  Noise and the safety of workers at each site has always been a priority for all our clients.

Engines
The engine and compressor are the heart of a compressor station. The compressor is needed to force the gas along its path within inter-state pipelines while the engine is needed to power the entire operation. Compressor stations may use a gas turbine or a reciprocating engine. Both involve the burning of natural gas to produce energy. The process of supplying gas to the engine as well as the engine exhaust are the major sources of noise.
Recommended silencers: Our Model CTS silencer incorporates silencer panels into a custom designed stack that fits into the exhaust of the turbine. Model RCS silencer is perfectly suited for reciprocating engines. The EES silencer reduces unwanted noise within the IC engine exhaust system. 
Compressor Station Blow-down
The blow-down or depressurization of station equipment and gas piping is a source of intermittent noise. Blow-downs are usually scheduled and controlled as part of routine maintenance or during emergencies but may last for several minutes. During this period, it is essential to take the necessary precautions against continued exposure to noise. Without attenuation, the noise level from such depressurization could be in excess of 100dB even at 100ft away!
Recommended silencers: Our EVO and BOS silencers are custom designed to handle variable inlet pressure for a timed station blow down. These models combine the multiple inlet option to manage gas from different sources especially during start-up.

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Compressors

Compressors are used to force (by increasing the pressure) natural gas to flow more readily through a pipeline. Companies that transport natural gas are able to do so by installing compressor stations intermittently along their network of pipelines. Noise generated by a compressor could be continuous or pulsating. Continuous noise is usually emitted by centrifugal and turbine compressors whereas pulsation noise is emitted by reciprocal, rotary or screw type compressors. Compressor noise mostly emanates from the compressor suction and discharge. Installing a silencer at the inlet or suction is a simple but proven method of attenuating noise. Our solution will always put into consideration the effect on operation, the available space and the noise characteristics of the compressor.

Recommended silencers: Our Model CIS Compressor Silencer is an absorptive type silencer, designed for the short acoustic wave lengths produced by centrifugal and axial compressors. It offers low-pressure drop and can be used at an open inlet unit or in-line if low-pressure air is being piped from a remote source. The CIS Inline Silencer could also be used in conjunction with one of our pulsation dampeners to control pulsation in positive displacement compressors. Model RCS Silencer provides high performance flow path pulsation and noise control for compressors or blowers running at constant RPM.

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