Success Story

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Customer: SINIAT BV

The gypsum board production process at SINIAT requires a continuous supply of 5.8 MWth heat and 1.8 MW electric power. SINIAT operated a radial gas turbine of old technology with low electrical efficiency 14%, delivering only 1.1 MW electricity. They wanted higher electrical efficiency along with high temperature heat. SINIAT wanted to install the gas turbine in the same area as the existing old radial gas turbine within just two weeks.

Part of the gas turbine exhaust is ducted to two calciners. As the temperature requirement of the calciners is higher than the exhaust gas temperature, post-firing is applied. As the exhaust gases still have around 15% O2, post-firing is possible without additional ambient air blending. The remaining part of the exhaust is ducted to the board dryers, where a lower temperature but higher flow rate is required for the desired drying effect. Exhaust gases are blended with ambient air and post-firing is applied as necessary to control the temperature.

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