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Background

The Ratchaburi Power Plant was initiated by EGAT in 1993 due to high demand for electricity in Thailand. The plant is located 80km south west of Bangkok in Ratchaburi province and  onstruction was started in early 2000. The plant has a total capacity of 3,645 MW and consists of a Thermal and Combined Cycle Power Plant.

Operating Conditions

Ratchaburi Power Plant uses two types of fuel Natural Gas and Bunker Oil, which contains around 2% of sulphur. The power plants are installed with Flue Gas Desulphurisation, Cooling Towers and Waste Water Treatment facilities.

Special Requirements

Trepax were awarded a contract to supply and install protective systems for the Waste Water Treatment Plant. Trepax worked with EGAT engineers on the design and specifcation of the protective lining systems. A special conductive vinyl ester primer was used to allow the lining to be tested by a holiday detector for the presence of pinholes. This enables the application of a defect free lining system, which assists in providing maintenance free long term protection.

System Specifcations

1. A fibre reinforced epoxy vinyl ester lining system was specifed and used for this project for all areas of the waste water treatment and surrounding concrete areas.

2. To the turbine floor an acid resistant tiled system, bedded and jointed in vinyl ester mortar was used to withstand the heavy demands of the process area.

Project Details

Location	Ratchaburi, Thailand
Project	Ratchaburi Power Plant
Owner	Ratchaburi Electricity Generating Holding Public Company Limited
EPC	MHI
Contractor	Sino-Thai Engineering & Construction Public Company Limited
Date	2002
Work	1. Concrete Waste Water Areas 2. Turbine Floor Areas
System	Various
Area	1. 6,800 m2 2. 9,000 m2
Value	US$ 400,000