Finalnad’s W’rtsil’ Corporation said it has been awarded a contract by Surma Energy Ltd, a company of Larfarge Surma Cement Ltd, to deliver a 30 MW power plant for a new cement plant of Lafarge Surma at Chhatak in Bangladesh.
The power plant will be designed and constructed by W’rtsil’ under an Engineering, Procurement and Construction (EPC) contract worth approximately 15 million Euro. (US$1=0.77 Euro). The power plant ordered in December will be handed over in the first quarter of 2005.
The new cement plant will initially have an annual production of 1.2 million tonnes of high-quality cement. The raw material will be transported from its own quarry by a 17 km conveyor belt.
The power plant will comprise four W’rtsil’ 18V34SG gas engines and two W’rtsil’ 18V200 diesel engines. The 18V34SG-engined sets will each deliver 5990 kW at 750 rpm, and the 18V200 sets 3450 kW at 1,500 rpm.
The gas engines will be for normal base-load operation on natural gas while the 18V200-engined sets will be for peak-load operation during the starting of main motors in the cement plant.
The plant will operate independently of any external network.
Wartsila said this makes the project technically demanding in terms of stringent voltage and frequency variation. The cement plant has a number of large electric motors, which create high starting loads. Yet the voltage and frequency drops as these motors are started must be restricted because the drive system of the long conveyor belt is sensitive to voltage and frequency variations.
The plant’s location in north-east Bangladesh lacks proper road connections for heavy transport. Thus the generating sets will be delivered by river transport. But this is only possible between May and October when the river levels are sufficiently high (usually 7m above levels in the ‘dry’ season).