ENERGY SAVING
With digital twinning,
engineers can rapidly receive a quantifi ed report on the impact of introducing heat pumps, or replacing a specifi c pump model, with actual calculations of the resulting savings in energy
maintenance or pump failure. This has a huge impact on embodied carbon and cost. In installations such as hotels, offi ces and retail stores, or sites considered as having a low risk (such as schools and apartment blocks) there are far more sustainable, effi cient and cost-eff ective ways of safeguarding pump operation than having pumps standing idle ‘just in case’. Adopting a parallel pumping strategy (specifying two smaller pumps, each sized for 50% of the design fl ow) in preference to a 100% standby approach, can reduce fi rst installed and lifecycle costs, free up space in the plant room or energy centre, and potentially halve the embodied carbon for the installation. The Armstrong Tango range of pump solutions, for example, incorporates two pumps into a single case and has built-in parallel sensorless pump control and embedded intelligence and connectivity for parallel pumping. These models can deliver energy savings of more than 30%, and can signifi cantly improve lifecycle costs as well as space. Some of the larger models also incorporate built-in isolators which allow for maintenance of each head without the need to disrupt supply, simplifying and speeding up routine tasks. And when you’re considering embodied carbon, don’t
forget that the bodies of some legacy pumps, such as the Armstrong models, can be left in place, with just the controls and motor elements needing to be upgraded. This can save downtime and cost, minimise disruption, and have a major positive impact on embodied carbon performance.
Operational effi ciency Today’s generation of pumps can also perform important diagnostic tasks, constantly recording and feeding back information to the facility/maintenance manager. With this the user is not only given the information needed to maintain effi ciency of the system, but is alerted if problems could be about to arise. An active performance management service such as Armstrong’s Pump Manager, for example, provides the user with real time data from the system and each pump individually, and utilises machine learning to eliminate energy drift, providing up to 30% savings. Vitally, Pump Manager provides not just active, but predictive diagnostic information. The application uses the data it receives, directly from the pumps, to detect the future possibilities of problems such as bearing failures and cavitation, reducing and mitigating equipment failure and realising around 50% savings in maintenance costs. An important benefi t of full pump connectivity, of course, is that the performance of heating and cooling systems in multiple locations can be analysed remotely. Local HVAC engineers in the areas where the pumps are situated can be given expert guidance from a central point, anywhere in the world. With access to highly-detailed real-time data on performance of individual pumps, the specialist employed to oversee the performance of HVAC systems can manage any intervention at any site remotely, and provide advice on any actions that need to be taken by local engineers. This provides an additional safeguard that comfort conditions will not be compromised for building occupants.
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consumption, energy costs and carbon reductions provided by the
technology in minutes. Using these insights the simulation also calculates the payback period and return on investment.
www.acr-news.com • January 2025 17
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