search.noResults

search.searching

dataCollection.invalidEmail
note.createNoteMessage

search.noResults

search.searching

orderForm.title

orderForm.productCode
orderForm.description
orderForm.quantity
orderForm.itemPrice
orderForm.price
orderForm.totalPrice
orderForm.deliveryDetails.billingAddress
orderForm.deliveryDetails.deliveryAddress
orderForm.noItems
ENERGY MANAGEMENT AND SUSTAINABILITY


Supermarket Refrigeration Henderson Group, the family-owned business that owns Spar and Eurospar, achieved an 80% reduction in energy consumption with an EC upgrade. Refrigeration systems account for between 30% - 60% of the total electricity used by supermarkets. In this case, the simplest and most cost-effective way of improving the chiller cabinet’s energy performance was to upgrade the fans from AC to EC fans, incorporating on-board electronics which allow control of the power input to the motor, thus achieving the required fan speed.


Utilising EC fan technology in chiller cabinets results in far lower running costs than traditional AC fans,


NHS Estate – Croydon Health Services


The Croydon Health Services engineering team, along with Carbon Architecture, who manage Energy projects for the Trust, were keen to explore the possibility of upgrading the tired, old, belt-driven fan in one of its AHU’s. The aim was to reduce energy consumption and increase the available airflow capacity. In the height of summer, the existing AHU was not delivering adequate airflow, leading to overheating problems in the hospital. Carbon Architecture had a full validation of the existing AHU carried out and supplied this information to Airedale International Air Conditioning. A detailed site survey was then carried out to confirm the mechanical solution as well as record the unit‘s power consumption.


We produced a bespoke fan and bulkhead solution that allowed simple installation and connection via pre-wired extended control and mains cables. The technology at the core of the solution is the EC RadiPac centrifugal fan; a direct drive EC external rotor motor, with aerofoil backward curved impeller and onboard control electronics including integral variable speed drive. The onboard electronics allow for alarm outputs/ condition monitoring, simple analogue speed control, closed loop sensor control (demand ventilation) and MODBUS communication/control, ideal for integration to the hospitals planned BMS upgrade works. A professional installation was carried out by Airdale, with little fuss and minimum downtime over an eight-hour period. After the on-site team carried out some minor alterations to the electrical panel, which included the addition of its own sub-meter, the unit was back up and running in no time.


The installation achieved its two primary objectives; reducing the power consumption of the AHU by 40% (a 3.6


www.tomorrowsfm.com


and consequently lower ‘life-time costs’. The company reviewed the energy output of its existing stock of 2000 refrigeration fans, which worked with conventional energy-hungry shaded-pole motors. The business contacted us, and Cross Group, which delivers industrial and commercial refrigeration solutions, to install over 2,000 new fans throughout their 400 stores.


The business’ existing 38W AC fridge fans were upgraded to ebm-papst’s EC 8W fans, reducing the kW demand from 91.2kW to 17.60kW. This led to a total power consumption reduction of 644,736kWh, with the new EC fans consuming just 154,176kWh in a year; compared to the 798,912kWh of the old fans.


kW reduction at matched duty) and increased the available airflow. It also provided additional benefits of being maintenance free and increased the system resilience, control and monitoring.


Conducting an upgrade programme is less disruptive than you might think. EC fans are usually directly interchangeable with their predecessors, meaning the replacement process is quick and simple. Longer term ongoing maintenance is also minimised, as the EC technology means there is less heat flowing through the motors which in turn leads to fewer rotor copper and slip losses.


Since the Climate Change Act 2008, the UK Parliament aims to reduce the UK’s greenhouse gas emissions by at least 80% (from the 1990 baseline) by 2050. The University of Birmingham warned recently that in this time, the warming climate will cause the demand for cooling appliances to quadruple. Researchers predict energy use for air conditioners and refrigeration to jump 90% compared to 2017 levels. HVAC systems are typically responsible for 60% of a building’s energy consumption, so reducing the energy consumption of these units can be very rewarding for building, energy and facility managers.


www.ebmpapst.co.uk/upgrade TOMORROW’S FM | 29


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61  |  Page 62  |  Page 63  |  Page 64  |  Page 65  |  Page 66  |  Page 67  |  Page 68  |  Page 69  |  Page 70  |  Page 71  |  Page 72  |  Page 73  |  Page 74