Pacific Controls is the market leader in monitoring HVAC equipment. Its ICT Enabled Managed Services for Business Process Integration provide flexible web-based tools with powerful data mining and diagnostic capabilities that can achieve this. The service is supported by highly experienced electrical, mechanical and controls engineering experts who are available as required to provide additional support during an incident, for off-line analysis and to provide recommendations for improvement, event analysis and reporting.
Data logging and equipment registers have become obsolete now that wireless connections over the Internet allow data to be collected automatically. Intelligent data mining transforms unmanageable data logs into rich sources of valuable information to aid decision making. Pacific Controls experience of monitoring and verification has allowed them to capture diagnostic procedures in rule-based artificial intelligence so that no fault goes unnoticed. Incident-based Pacific Controls Managed Services for Critical Assets Monitoring include online performance assessment of large chilled water and district cooling plants and an effective mechanism for maintaining the plant as close to the performance benchmark as possible.
Pacific Controls managed services framework is capable of communicating with a wide variety of plant and equipment and uses intelligent data mining and analysis to deliver important efficiency and diagnostic information to the user. It incorporates the following features:
Pacific Controls Managed Services for Critical Assets Monitoring use artificial intelligence to suppress false alarms and ensure that high priority alarms are given the attention they deserve. Performance metrics are monitored and analysed using a matrix approach that allows the whole environment of the building and the requirements of its users to be taken into account. This approach highlights unexpected factors that may be having a surprisingly large effect on performance.
Chilled water-based cooling systems are frequently used to air-condition large office buildings or campuses that encompass multiple buildings. They represent a large investment in terms of initial cost, the physical space they occupy within the building, energy and maintenance expenses. Yet many chiller plants do not reach their potential energy efficiency capacity and efficiency (kW/ton) vary with operating conditions, as well as how the power consumption varies at part load conditions. They are empirical in the sense that the polynomial structure is not based on physical relationships. It is a grey-box model as the final power prediction of the chiller is based on physically meaningful quantities obtained from the polynomial curves. The model assumes that evaporator and condenser water flow rates remain constant
Pacific Controls Managed Services for Critical Assets Monitoring include all the tools needed for building energy analysis and minimising fuel bills. These include:
There are a number of monthly reports available by default. These are available online and can be automatically sent by email as portable document format (PDF) files. They include:
Dashboards will be set up for different types of user, showing the energy profile of the building. Typically the system will be monitoring electricity and natural gas use for each building by time of day, facilitating management of peak loads and identification of unnecessary equipment operation during unoccupied periods. It also enables monitoring of power quality supplied to the building and the power factor of the building load. The energy dashboard is the portal to access the building energy profile and provides the following parameters.
Energy use parameters for electricity, gas, and oil if a diesel generator is installed:
Environmental impact parameters:
They can offer predictive maintenance services based on detailed monitoring of condition and sophisticated data mining and analytics that enhance the standard preventative maintenance approach. This can identify potential problems in advance and arrange appropriate intervention. A detailed root cause analysis will identify the solution and the findings are used to issue a job card or work order. The system will automatically carry out hazard identification, risk assessment and risk control analysis. It can also remove the need for unnecessary maintenance of plant that is performing well, thus removing one of the causes of plant failure. This will give customers peace of mind that HVAC systems are operating reliably, with little or no downtime. They can also offer services to reduce GHG emissions and improve energy efficiency.
Building owners gain in running their HVAC systems efficiently and in improving the sustainability of their facility. Cooling generally constitutes about 60% of the total energy load of the building, so tracking the chilled water system and managing its efficiency pays off and brings large savings with little investment. They can keep equipment running at peak efficiency and eliminate failures.
Using Pacific Controls Managed Services for Critical Assets Monitoring, chiller and other HVAC equipment manufacturers can offer their customers monitoring and management services through a single interface that connects all the equipment they have deployed. This allows them to have an on-going relationship with equipment users and provides a central data depository for analysis that will enhance R&D.