BSEE PUMPS
Between ensuring energy efficiency, and finding the most cost‐effective solution, there are many aspects to consider in the specification and subsequent use of pumps across industries and environments including healthcare, schools and many more. By John Calder, Technical Pump Engineer and Director, Dura Pump.
legislation. As of January 1st this year, energy efficiency class IE3 will apply to motors from 0.75 kW to 375 kW. All motors sold in the EU must be rated at IE3 efficiency, unless they are connected to a variable-speed drive, in which case an IE2 motor is acceptable. The European Union has introduced this Directive to ensure that all motors are of premium efficiency. Not only will it help organisations to become more eco-friendly, it will help them to save money on energy costs too. With 70% of industry’s electricity consumption directly attributed to electric motors, the EU commission and UK Government forecast a total reduction of around one million tonnes of CO2 each year with this new Directive.
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Similarly, the government legislation, ESOS, requires large companies to prove their commitment to saving energy throughout their businesses. We recommend the best way to ensure your organisation’s ongoing dedication to the energy efficiency of your pump systems is through regular, dedicated maintenance. It is important that systems are regularly reviewed to ensure maximum efficiency. When systems are regularly maintained they are less likely to fail, and all too often we come across situations where emergency work is needed for pumps which haven’t been serviced in a while.
For example, we have worked on emergency projects with private hospitals where pumps can be critical to most medical operations. A failed heating pump at one hospital put almost 20 operations at risk when it failed on a Friday afternoon, with operations scheduled for the next morning. In this case, we managed to make it to site the same day to examine the failure and diagnose that a new inverter was needed, and solved the problem in time.
uA Grundfos booster set with Inverters.
The prospective complications and knock-on effects of cancelling the surgeries could have been catastrophic for the hospital, and the patients who were waiting for serious appointments. In this case, all 20 operations went ahead smoothly as we were called in and were able to
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PUMPS FOR HEALTHCARE FACILITIES Complying with energy efficiency regulations
ecent legislation includes the IE3 motor energy efficiency directive and the ESOS (Energy Savings Opportunity Scheme)
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act in time, and patients were none the wiser that their operations had been under threat.
This case illustrates why it is so important that healthcare facilities and other organisations understand the importance of having a reliable solution in place, not only to minimise risk of emergency situations, but to save on cost of repairs and the cost of energy. We encourage facilities managers to ensure that the pumps they have on site are up to date and that they are the most efficient systems that they could be using, as a proactive maintenance programme. Equipment which isn’t maintained is more likely to fail catastrophically, whereas maintained equipment can be monitored and worked on long before an issue becomes a major problem.
We would recommend similar advice for organisations across industries as we regularly deal with comparable situations across the board, from prisons and schools, to zoos and airports. We publish a range of useful educational guides on pumps and systems on our website.
www.durapump.co.uk
Warwick Hospital saves £2,500 on heating pumps W
ith energy costs constantly rising, Warwick Hospital approached Dura Pump about how to save energy by assessing the efficiency of their heating pump systems.
The challenge
Dura Pump received the task of carrying out an assessment of the hospital’s current systems to see where energy was being wasted, and to make recommendations to reduce energy consumption. The challenge was that many of
20 BUILDING SERVICES & ENVIRONMENTAL ENGINEER JULY 2017
the pumps in use were relatively new and seemed to have the sufficient controls in place.
The solution
After a careful analysis of the systems, the team at Dura Pump found a number of pumps which could be optimised to increase efficiency. To complete this process, the specialist engineers at Dura Pump replaced four pumps with a more efficient pump design which uses a smaller motor.
In some similar instances, it is sometimes
possible to reduce energy consumption using inverter drives, but due to the specific pump applications in this case, inverters were not necessary. Instead, Dura Pump was able to trim the impellor of the pumps to achieve the exact duty required.
The result
As a result of these changes, almost £2,500 will be saved each year on the hospital’s energy bills, meaning that the whole project will pay for itself in only 33 months.
VISIT OUR WEBSITE:
www.bsee.co.uk
worked on emergency projects with private hospitals where pumps can be critical to most medical operations. A failed heating pump at one hospital put almost 20 operations at risk when it failed on a Friday afternoon, with operations scheduled for the next morning.
’ uInefficient belt drive pumps.
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