COMBINED HEAT & POWER
BREEAM points
The energy saving calculated from the BRUKL report also delivers benefits in terms of BREEAM points. For ‘New Construction’, the 2018 version is the latest, whereas for ‘Refurbishment & Fit out’ the 2014 version is current.
Using Artus instead of FCUs gives a reduction of 23%, equating to a saving of 7% of the overall regulated energy, earning 3 BREEAM points (Refurbishment & fitout 2014).
With Artus Advantage, the energy is reduced for all three elements – cooling, heating and terminal units. The reduction is 60%, equating to a saving of 19% of regulated energy, earning 7 BREEAM points. Artus Advantage outperforms the energy reduction of active chilled beams – this has been confirmed by three separate energy analyses.
Artus Pro control system
Artus Pro is a control system which uses elevated water temperatures to reduce the energy usage of the units, whilst keeping the number of units the same. The cooling capacity of an Artus unit at 14/17 is lower than at 6/12, so in theory, more units would be needed. However using the ‘Artus Pro’ control strategy mitigates this, so by scheduling the chilled water temperature
against the ambient temperature, it is possible to achieve an energy reduction that is almost identical to Artus Advantage without increasing the number of units used. (The numbers for the model building trial layout are shown in the table below.)
Try it yourself
This analysis is for a model building. Readers can try this for themselves on their own buildings, with the example data below. You choose your own values for the chiller SEER and the heat pump SCoP based on the equipment you are using.
The conclusions we are seeing are that by using the low energy, low noise Artus, there are comfort and cost benefits to be made. These benefits are increased when employing the Artus Advantage or Artus Pro system and energy savings, operational cost savings and a reduction in environmental impact are possible.
A dedicated website has been set up which explains the technology behind the development of Artus
https://discoverartus.com and explains more about its applications and features. Airedale International designs and manufactures innovative and high- efficiency cooling solutions from its headquarters in Leeds. It provides solutions for industries including healthcare, commercial education, hospitality and data centres.
BREEAM Maximum credits Standard Artus Artus Ene01 Score BREEAM New
available 9
Construction 2018 BREEAM Refurbishment 15 & Fit-out 2014
Read the latest at:
www.bsee.co.uk
FCU 0
1
1 3
7
Active
Advantage Chilled Beams 3
3 6
BUILDING SERVICES & ENVIRONMENTAL ENGINEER OCTOBER 2020 23
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
