Fan coil units
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How can HVAC systems reduce embodied carbon?
Aermec’s Paul Lawrence explains how smarter fan coils lead the way when it comes to embodied carbon reductions
C
arbon emissions associated with HVAC products and services need to be radically reduced in a bid to reach the Government’s
2050 Net Zero target. Efforts have largely focused on operational carbon emissions, which have been steadily reducing, now attention has shifted towards embodied carbon. Embodied carbon is one of the hot topics under discussion. We’re going to hear a lot more about it as the HVAC industry needs to re-think its approach to greenhouse gases that buildings and systems emit and focus on reducing embodied carbon. We know that embodied carbon matters but what
10 July 2022
exactly is it and how is it calculated? Essentially embodied carbon comprises the CO2 emissions generated by all the materials and construction processes throughout the whole lifecycle of the manufacturing process including the transportation of raw materials. Whereas operational carbon covers all the energy sources associated with buildings such as ventilation, light, power, fuel and wood.
Embodied carbon [KgCO2] = material weight [Kg]
x carbon factor [KgCO2e] Although operational carbon has been talked about for quite some time, there’s a move to
embrace a holistic approach so that embodied carbon is acknowledged and starts to permeate every sector. In the HVAC industry, cooling/heating terminal units; fan coil units (FCUs)/ chilled ceilings offer one of the most sizeable areas where much can be done to reduce embodied and operational carbon emissions.
The industry has long focused attention on
operational efficiencies of HVAC systems; energy and cost savings, but a more holistic approach includes an analysis of CO2 emitted in the supply and manufacture of products and their materials over their operational lifetime is being advocated by
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