Scope Process Controls were recently commissioned to provide technical assistance and coordination for a turbine governor retrofit project in the Malaysian State of Selangor. The unit is a 300MW steam turbine which was built by Mitsubishi Heavy Engineering over 30 years ago. The original servomotors and their associated control equipment had reached the end of their life and reliability had become a major issue.
The modifications involved the installation of a new high pressure hydraulic system with new governor actuators and servo valves. Interfacing between Bailey Infi90 and the Emerson Ovation DCS provided many challenges that were overcome.
Scope Process Controls were recently engaged to automate two boilers at a major oil refinery in Victoria, Australia.
The boilers are designed to fire gaseous fuels ranging from natural gas to highly variable refinery fuel gas (RFG). Our design included orifice plate ranging and sizing recalculations as well as introducing dual cross-limiting techniques that are robust across the varying fuel compositions.
This project was part of aglobal company-wide energy reduction programme!
A major food producing facility in Northern Victoria utilise a non-condensing steam turbine to reduce 40 bar high pressure steam to 17 bar medium steam for use in the main production facility. The turbine is coupled to a large refrigeration compressor supplying chilled water to the process.
Matching the constantly varying steam and refrigeration loads created a major challenge from a process control point-of-view and Scope Process Controls were engaged to design a control strategy that could meet these challenges. Despite the enormous challenges associated with such a configuration we were able to design, programme and implement a control system that has improved efficiency, reliability and output of the machine.
A significant manufacturing facility in Victoria has undertaken an interesting project to better manage the operation of their compressed air system. By knowing the consumption profile throughout the facility they can operate machines in the most efficient manner.
Scope Process Controls provided the Comate VFM60 vortex flowmeters with inbuilt temperature and pressure compensation which enable the client to accurately measure the air production of all compressors which means they can schedule their operation to achieve maximum effficiency.