PanAm Thermal Generating Ltd.
Retrofit of a diesel power generation plant
Description:
La Chorrera Power Plant
37 km west of Panama City
Republic of Panama Owner and Client:
IGC/ERI PanAm Thermal Generating Ltd.
World Trade Center, 6th Floor, Suite 601
Panama City, Republic of Panama Project
Location:
37 km west of Panama City
Contact:
Mr. René Rivera, Technical Manager
Tel: (507) 265-4685
Scopt of Work :
Complete acoustical retrofit of a 96 MW diesel power generation plant housing six Wartsilä 18V46 oil-fired internal combustion engines capable of producing 16 MW each. the plant contributed 62 dBA at the nearest sensitive area (NSA) - 820 ft. (250 m) away.
Noise Sources:
Radiator coolers, building ridge ventilation exhaust, combustion exhaust silencers, combustion exhaust ducts, building roof and walls.
Noise Level Target:
The target was established as The World Bank Standard of 45 dBA at 820 ft. (250 m) at the nearest sensitive area.
Unique Project Challenges:
The plant had to remain operational during construction in order for PanAm to meet its minimum contractual supply obligations of 60 MW. This necessitated that much of the work be done at night, under less than optimum conditions. Close coordination with the operational staff of the plant was essential in ensuring that the language and cultural differences did not present communication barriers that could have a negative impact on the quality and safety aspects of the project.
Silencing Solutions :
ATCO Noise Management desgined, supplied and installed the following components: an acoustical building ridge vent, an acoustical upgrade of the wall and roof systems, an acoustical barrier wall around the existing combustion exhaust silencers, combustion exhaust duct lagging, and inlet and exhaust silencing for 102 radiator coolers. ATCO also installed additional exhaust silencers during scheduled engine overhaul shutdowns.
Post-construction testing confirmed that ATCO's noise mitigation measures performed as designed. The building ridge vent design resulted in the additional benefits of improved ventilation and lower temperatures in the engine hall.
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