General Electric's (GE) Distributed Power business said Tata Energy selected two of GE’s 3.3 MW Jenbacher J620 cogeneration gas engines to power Tata’s Salfi textile mills in Karachi, the country’s largest city. The project represents GE’s 1,000th and 1,001st Jenbacher gas engines to be installed in the country.
In addition to power generation, the Jenbacher units also will recover heat from the engine exhaust to produce steam for the mill’s production processes and also recover heat from the engine’s jacket water to produce chilled water to support cooling needs at the facility.
GE’s Jenbacher natural gas-fueled engines will enable Tata to reduce its on-site power generation costs, gain greater electrical efficiency of 43.5 percent and further improve overall efficiency of the power plant by making effective use of the engine exhaust heat and jacket water heat to align with the government’s goal of encouraging optimal use of cleaner natural gas for power and cooling production. Once Tata installs the new engines by August 2014, the company plans to retire its existing, less-efficient generator sets.
GE’s installed base of Jenbacher units in Pakistan have recorded more than 31 million hours of operation, reflecting the popularity of the engines for their reliability, durability and low emissions since the late 1990s.