The existing gas turbine installation of the Mymensingh power plant is upgraded to a combined installation with a total capacity of 210 MW. Royal Haskoning is responsible for the design of the building site, infrastructure, buildings and technical installations.
 
Upgrade existing installation
The existing 4x35 MW gas turbine installation is placed on a backfilled embankment at the “Old Bramaputra” riverbank, in Mymensingh.

The extension of the plant consists in the upgrade to a combined installation (CCPP) with a total capacity of 210 MW. To realize this new boilers are coupled to the existing gasturbines. The generated steam powers the new steamturbine, which drives the generator, that leads the electricity to the national grid.

Embankment protection
The existing, backfilled terrain is extended. The embankment protection is designed according to the “falling apron”-principle. That ensures protection against the current of the river during monsoon periods, even when the riverbed descends due to ersion.

Earthquake
The design has to fulfill high earthquake requirements. For the design of the extension liquefaction of the existing subsoil is taken into account. For the foundations 26 m long cast in situ piles have been made, to be able to resist these earthquake forces.

Design
Royal Haskoning is responsible for the design of the embankment extension, infrastructure, buildings en civil structures as well as the non process installations. For this, an optimum mix of the local available means and materials combined with Western technology was used.

Paul Bierman
T +31 (0)24 3284 239
E Paul Bierman