Design and operational strategies for good Indoor Air Quality in low-energy dwellings: performance evaluation of two apartment blocks in East London, UK
2018
To achieve stringent energy objectives, new dwellings are subject to energy conservation
measures including low air permeability and high levels of insulation. Mechanical Ventilation
with Heat Recovery (MVHR) can be used to control the balance between energy efficiency
and Indoor Air Quality (IAQ) in these buildings. This paper evaluates the effectiveness of the
design and operational strategies adopted in a new development comprising two apartment
blocks in East London. The findings point to significant gaps in operational energy use
compared against design projections, and high concentrations in benzene and formaldehyde
three years after construction. It is suggested that a combination of internal source control
measures at design stage and building fine-tuning in early stages of post-occupancy is
necessary to close the performance gap in energy and IAQ.
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