CLIENT

Siemens Energy Inc.

PROJECT DESCRIPTION

Siemens entered into a contract for the supply of a power plant with 2 x SGT6-4000F gas turbines with critical octave band noise limits in Illinois, USA. It was determined that the key noise contributors would be the exhaust systems and extremely stringent octave band noise limits were established for the exhausts. Our proposal for the supply of the exhaust systems was chosen after an extensive review by Siemens acoustic personnel.

SCOPE OF WORK

Design, engineer, manufacture and supply of exhaust systems featuring Higgott-KaneTM silencing : complete engineering and foundation load analysis, horizontal primary and secondary transitions, horizontal silencer, horizontal enclosure, exit transition, elbow, vertical silencer, 70ft exhaust stack, test ports, access doors, ladders, platforms, and personnel protection screening. 

ACOUSTICAL REQUIREMENTS

  • Guaranteed sound power levels at each octave band.

SILENCING SOLUTIONS

Design Features:

  • Two stage silencer (horizontal and vertical)
  • Vibration break in horizontal silencer
  • Heavy wall casing for horizontal ducting
  • External ventilated enclosure

RESULTS

All guarantees were met after start-up testing.