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ISAC

Sabroe Integrated Standard Automation Concept

Sabroe Integrated Standard Automation Concept


Many refrigeration systems that use R717 (ammonia) as refrigerant and feature an evaporative condenser are operated using a fixed set point to maintain a constant condensing pressure. This is rarely ideal, as the energy consumption of the compressors typically increases by 3% for every °C the condensing pressure rises – shaft power consumption is directly influenced by condensing pressure. This impacts overall operating costs and plant efficiency. Reducing condensing pressure improves compressor efficiency, but itself also requires energy. Maximum overall efficiency stems from the best possible balance between compressor energy consumption and the energy required to reduce condensing pressure. The CP Optimiser automatically calculates this energy balance, taking into account changing loads and conditions. This paves the way to considerable savings on energy bills, which means the CP Optimiser normally pays for itself within a matter of months.refrigeration control and monitoring set-ups of virtually all kinds. It provides an effective way to integrate SCADA graphics with PLC functionality in order to ensure effective, reliable monitoring and control of both large and small industrial refrigeration installations. ISAC modules provide standardised, pre-vetted solutions for almost any installation, based on consistent, industry-standard data inputs and outputs that ensure seamless, glitch-free exchanges of data between many different kinds of equipment, regardless of capacity, configuration or manufacturer.

Features

  • Extensive Sabroe practical experience is embedded in all ISAC modules
  • All modules are designed as modular building blocks and based on standardised interfaces and data exchange configurations
  • Each module designed and tested individually to eliminate technical incompatibilities
  • Supports a wide range of standard configurations, ranging from single touch screens to multiple workstations
  • Based on standardised components with a very high degree of documentation, for maximum consistency and efficiency
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