25 de noviembre de 2020

MACOGA supplies large size High Pressure Expansion Joints for the largest Hydropower project in the history of Portugal

MACOGA supplies large size High Pressure Expansion Joints for the largest Hydropower project in the history of Portugal
MACOGA supplies large size High Pressure Expansion Joints for the largest Hydropower project in the history of Portugal
MACOGA supplies large size High Pressure Expansion Joints for the largest Hydropower project in the history of Portugal

The Tâmega Hydroelectric Complex represents the largest hydropower project in the history of Portugal and, furthermore, is one of the European energy sector’s most important initiatives of the last 25 years.

MACOGA secured a contract for the design, manufacturing and testing of two MRR Reinforced Expansion Joints DN4600 for 12 bar design pressure and two DN2000 MWA single unrestrained units for 8.1 bar design pressure for the Tâmega Hydroelectric Complex. 

For MACOGA this is another large contract received for Hydro Power Projects in. Once more, MACOGA secured the contract award with an economical and technically optimal proposal, as well as its long-term experience in the design and manufacturing of such complex Expansion Joints.

Tâmega comprises three dams: Alto Tâmega, Daivões and Gouvães. In particular, the latter will be commissioned in 2021 and will be used for energy storage. It will guarantee the supply of energy for the almost three million inhabitants of the city of Porto. In 2023, the entire complex will be finished and ready to provide a combined generating capacity of about 1,158 MW. 

MACOGA is a main supplier for Expansion Joints to Hydro Generating projects throughout the world.

Main mechanical design, parameters and features of the expansion joint supplied are:

Design Codes

  •     EJMA latest edition
  •     ASME Code
  •     Pressure Equipment Directive PED 97/23 / EC

MRR Reinforced

  •     Nominal Size: 4600 mm
  •     Type: Single unrestrained reinforced
  •     Design Pressure: 12 barg
  •     Test Pressure: 18 barg
  •     Operating Temperature: +40/-5 °C

MWA Single unreinforced

  •     Nominal Size: 2000 mm
  •     Type: Single unrestrained unreinforced
  •     Design Pressure: 10 barg
  •     Test Pressure: 15 barg
  •     Operating Temperature: +40/-5 °C