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building services


Exeter University’s science faculty building is extended


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RIGGS & Forrester is working on an extension to the Science and Engineering Research Support


Facility (SERSF) building at the University of Exeter’s Penryn Campus. Partnering with main contractor Kier, Briggs


& Forrester will provide the mechanical, electrical and public health services. The facility will provide an additional


two laboratories, CTR rooms, offices and seminar rooms for the university to increase the research capabilities. It will


also provide additional office accommodation to the increased number of lecturers and professors. Briggs & Forrester is inking the services


with the existing site wide systems, while maintaining the integrity of the installations to the existing SERSF building during the construction period. Services include gas, domestic services,


deionised water, CO2 & compressed air, ventilation, fume extract, chilled water, DX cooling, controls, above ground drainage


(including lab drainage), generator Installation, mains distribution, general power, CCTV, lighting, access control, fire alarm, intruder alarm, lightning protection, PV installation, data, refuge alarm and mechanical wiring. Briggs & Forrester is expected to


complete the six-month project later this year.


www.briggsandforrester.co.uk


Aston University invests to reduce energy usage


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HEN Aston University required ventilation for a major refurbishment programme they


opted to use Eco-Airvent’s UK designed and patented heat recovery technology – the Classmaster® VHR, UK manufactured heat recovery units (HRU). The challenge was to select a


sufficiently quiet HRU that could be installed in the existing classroom areas without the need to add false ceilings to reduce noise breakout from the HRU. Classmaster® HRU’s ultra low noise levels provided the solution. Powder-coated to match existing ceiling colour, the low profile HRUs were installed at high level. With a total maximum installed specific fan power (SFP) of ≤ 0.66 W/l/s, the ventilation system uses 60% less energy than the current maximum SFP allowable of 1.6W/l/s (Government directive 2013). Eco-Airvent’s patented HRU design


achieves a high thermal efficiency even if HRU is running at a low airflow to conserve


32 highereducationestates


energy. Its technology allows HRU to run at 50% air volume while maintaining 89% thermal efficiency by maintaining turbulent flow within the heat exchanger (this is not possible with conventional technologies as heat exchanger loses its thermal efficiency as it transfers into laminar flow at low airflow rates). To further reduce energy costs,


ventilation control, including automatic summer bypass and night cooling, was provided via BMS linked to Eco-Pro3© controller which automatically adjusts the ventilation rate as required via sensors for temperature, CO² or time-limited manual override. With the third phase of installations


now complete - the first phase was completed in 2015 - Aston University is hoping for many years of trouble-free energy-efficient ventilation.


www.eco-airvent.co.uk


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