JNE was engaged by a local steel manufacturer to aid in the installation of a turbo-generator which would allow the plant to convert excess steam into usable energy.

The turbo-generator consists of a 13-stage straight condensing steam turbine, which is directly coupled to a 13.8 kV generator. Excess plant steam is used to spin the turbine which in turn drives the generator. The generator is then connected to the electrical station. The amount of power generated will be directly dependent on the amount of steam available. In operation, this 3600 RPM turbo generator will generate a nominal 6 MW.

Within the steam turbine, steam is expanded through several stages to extract thermal energy and convert it into rotary motion. In each stage, the high heat/pressure steam is expanded through a stationary nozzle, then directed onto the blades of the turbine, causing them to move. The steam exits the turbine as a saturated vapor at a pressure below atmospheric. The steam then enters a baywater-cooled condenser where it is condensed to liquid water.

The power generated will either be utilized by the client for their processing needs or be made available to the provincial power network.

JNE performed the following services:

• Created the process steam and lube oil flow sheets as well as the P&IDs sheets since the original documents were no longer available
• Prepared the specification documents used to purchase the steam condenser, pumps and lube oil skid
• Prepared the specification document used to purchase an outdoor prefab building including all the electrical equipment (switch gear, grounding transformer, exciter transformer, panels, batteries, etc)
• Prepared the functional description document that was used to program the automated controls system
• Conducted site reviews and obtained the required measurements for design
• Prepared construction drawings for the new one story high foundation, piping to and from the turbine, as well as electrical cables between the generator and the existing electrical station
• Reviewed shop drawings
• Conducted construction support services
• Prepared commissioning documents and procedures as well as helped commission the installation