BSEE CASE STUDY
Located on the River Great Ouse in Ely, the new Cambridge University Boathouse is a stateoftheart facility that acts as a centre of excellence for rowing. It aims to use energy as eciently as possible and maintain perfect comfort condions for occupants and users of the facility, which is why it has a Building Energy Management System (BEMS) from Trend.
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TREND TAKES TO THE WATER BEMS comfort for Cambridge rowers
ntil recently, Cambridge University’s three rowing clubs – the Cambridge University Boat Club (CUBC), Cambridge University Women’s Boat
Club (CUWBC) and Cambridge University Lightweight Rowing Club (CULRC) – were based in different locations and they had to make do with less than adequate facilities. But with the formation of Project Ely, CUBC was able to purchase a site on the River Great Ouse in Ely for a new boathouse, which joined the three clubs together.
The Project Ely Group was founded as a fundraising initiative and a professional group was established to run the project, with a core team of 20 volunteers from the three clubs working tirelessly either to raise funds or manage the planning and build elements. The bulk of the funds for the new boathouse came from over 450 alumni and friends of the three clubs, which raised nearly £5m.
Charles Rowley at the Cambridge University Boathouse, explains: “It took eight years to reach completion from the original concept, with the build itself taking over two and half years, including one year of enabling works and a further year of construction. Now it is an ecologically intelligent and comfortable environment that not only serves as the main training base for Cambridge University Rowing, it is also open as a venue for rowing camps and corporate events.”
Facilies management ‘ Not only does
the facility look great, we know that thanks to Trend’s BEMS technology and Gemco’s engineering excellence, it is highly energy ecient and can oer Cambridge University’s rowers and visitors maximum levels of comfort and wellbeing.
The facilities at the Cambridge University Boathouse are designed to help the rowers compete on a world class basis. The two storey building features cutting edge training facilities, recreational space, kitchen, showers, changing areas, a drying room and a self- contained flat, plus storage for up to 50 rowing boats.
The project’s main contractor asked East Grinstead-based Gemco Intelligent Buildings Group to design a Building Energy Management System (BEMS) that could optimise energy efficiency. Jason Graystone, Gemco’s Managing Director, said: “As an approved Trend Systems Integrator we recognise the importance of energy usage optimisation and how occupant wellbeing can be enhanced through the use of a fully optimised BEMS. After conducting a site study, we configured a design that would also allow the BEMS to integrate with the gas absorption heat pump, which supplies heating to the Cambridge University Boathouse, as well as the air based ventilation system.” Achieving the level of integration required led to a solution that utilised the Modbus protocol to link the BEMS to the gas absorption heat pump and ventilation system. Modbus is an open protocol that has become a standard communications protocol for connecting industrial electronic devices.
A Trend Open Network Node (TONN) enables Trend IQ 4E controllers to interface with Modbus. Steve Browning,
30 BUILDING SERVICES & ENVIRONMENTAL ENGINEER JUNE 2018
partner and End Customer Marketing Communications Manager at Trend, comments: “When it comes to the amount of room allocated for BEMS in modern buildings, the size of its constituent parts really does matter. Large controllers take up more room in electrical enclosures but Trend continues to lead the way in reducing the footprint of its controllers without compromising on features.”
Jason Graystone adds: “By interfacing the BEMS using Modbus, the IQ View8 user interface can display all relevant information in granular detail. This has numerous analytical benefits and diagnostic advantages, as the rich data provided allows internal processes to be monitored so that events such as sensor, electrode or pump failure is reported to the end user. It also speeds up repair by ensuring that the correct engineer and parts are sent to site, while, from an operational point of view, it allows plant to operate on a demand led basis.”
Explaining how this works, he continues: “Analogue values allow the controls to modulate instead of stage or switch – in other words, the system is demand led and where specific areas need different levels of heat or ventilation, this can be achieved. As well as saving energy it enhances comfort conditions and occupancy health and wellbeing – something that is particularly important for athletes.”
Need for speed
The efficient operation of plant has also been achieved by installing variable speed drives (VSDs), which match the motor speed to the required tasks. VSDs are very effective in saving energy in pump and fan applications, as they provide soft start capabilities which lower instances of electrical stresses and voltage sags.
“The energy cost savings as a result of this technology can be significant, as a centrifugal pump or fan running at 80 per cent speed consumes only half of the energy compared to one running at full speed,” comments Jason Graystone.
The IQ View8 touchscreen display at the Cambridge University Boathouse allows authorised personnel to better understand plant and energy usage, monitor the BEMS in real time and make adjustments whenever necessary. It can also be configured to receive alarms sent from other Trend devices, where they appear on a special display, with an audiovisual indication of the alarm given. Other features include enhanced efficiency via an energy saving mode. This allows the screen to be
programmed to switch off and when in this mode the unit’s LED goes green to indicate that it is still powered on and will illuminate again as soon as it is touched.
The Cambridge University Boathouse was a notable example where Gemco used its project management tool –
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Cycle Management Process – to ensure that everything ran smoothly. “Cycle Management Process is an online software application that documents every step of a project – from procurement and design to delivery, installation and handover,” explains Jason Graystone. “All those working on a project including main contractors, subcontractors and suppliers can access relevant information.” Gemco has also introduced a video handover guide for each site, which clients can refer to at any point in the future if a query arises and negates the need for costly engineer callouts. The video for the Cambridge University Boathouse project can be viewed by visiting https://youtu.be/ogc9MNY7xS0
When it opened at the end of 2016, members of the CUBC, CUWBC and CULRC were unanimous in their praise for the Cambridge University Boathouse. Charles Rowley concludes: “This project took many years of commitment and hard work to reach fruition but we’re confident that we now have a facility that will last at least 100 years. Not only does the facility look great, we know that thanks to Trend’s BEMS technology and Gemco’s engineering
excellence, it is highly energy efficient and can offer Cambridge University’s rowers and visitors maximum levels of comfort and wellbeing.”
uA Building Energy Management System from Trend is providing energy eciency and comfort for the new Cambridge University Boathouse on the River Great Ouse in Ely.
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