PUMPS & WASTE MANAGEMENT Environmental features
in real-time is crucial to reduce energy costs and improve environmental performance of buildings. Without information on fluid flow, across the system, it’s difficult to diagnose and optimise efficiency. With accurate flow information, the picture changes entirely. In the case of the Armstrong DEPM pump models, Active Performance Management capability is resident as standard and building owners/energy managers can opt for the subscription based Pump Manager service to optimise efficiency. Pump Manager is a cloud-based application that uses the embedded intelligence and connectivity of Armstrong Design Envelope pumps to provide performance reports to system operators. With greater access to information, operators can make changes and address issues to optimise HVAC performance. Online trending and analysis across multiple parameters on single pumps, or on an aggregated basis for multiple pumps, can assist in identifying performance degradation and facilitate a predictive and proactive approach. The technology could report issues such as excessive vibration, pump in hand, risk of cavitation or a dead head, for example, should they start to occur. The performance management technology for this new generation of single-phase pumps is designed for compatibility with industry- standard BMS, EMS or CMMS solutions. In addition to optimising energy efficiency access to this level of connectivity can increase pump availability and reliability, reducing unexpected failures and providing early problem detection. Lastly it helps organisations report their energy use and environmental performance. Potential annual energy savings, in the case of the Pump Manager service, are up to 40%.
The latest generation of single-phase pumps can also help building owners in their ambitions to improve the environmental performance of their sites. The reductions in energy consumption, of course, can improve the site’s carbon footprint. In addition, however, there may be opportunities to reduce embodied carbon. This is an area of increasing interest for owners of building stock as well as for industry bodies such as CIBSE, which defines embodied carbon as:
[T]he greenhouse gas emissions (GHG) associated with the making of a product, its installation, its maintenance, repair, replacement, and then its end of life. It covers the whole life cycle, excluding operational aspects and the potential recovery, reuse or recycling of materials. The embodied carbon associated with MEP design can be significant in a building lifetime due to the materials that MEP equipment are made of and high replacement rates. The low-cost circulators traditionally installed in single-phase applications can score poorly in relation to embodied carbon, in that they are often not repairable, leading to comparatively high replacement rates. By contrast, the latest generation of single-phase pumps are built to last, with a longer expected lifecycle. In addition, within Armstrong’s range, there is the added option for a 50:50 split of design flow to reduce embodied carbon in 100% duty/standby scenarios. Two smaller pumps working in parallel can reduce the embodied carbon for the installation considerably.
Albion hp BSEE Jun22.qxp_Layout 1 10/5/22 10:43 Page 1
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www.bsee.co.uk In a league of our own. BUILDING SERVICES & ENVIRONMENTAL ENGINEER JUNE 2022 33
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