Energetic and economic evaluation of hybrid solar energy systems in a residential net-zero energy building

Thermal Transmittance (U-value) Evaluation of Innovative Window Technologies

“…Results for the heat insulation solar glass window (W07) showed a U-value of 1.84 W/m 2 •K that is well below their argon-based counterparts. Similar studies on thermal transmittance on HISG have shown U-values in the range of 1.30 to 1.70 W/m 2 •K, for low and high transmittances (Li et al, 2019). Alternatively, PV-integrated solutions provide an new approach to insulation characterisation, reporting U-values as low as 1.10 W/m 2 •K and marking a record for energy production of 40 W in panels with area of coverage of 0.66 m 2 (Cuce, Young and Riffat, 2014).…”

Vertical Planar Liquid-Vapour Thermal Diodes (PLVTD) and their application in building façade energy systems

“…Climate Control Building Envelopes (CCBE) can massively reduce space heating & cooling energy demands and are an essential part of NZEBs (Ascione et al 2016;Charisi, 2017;Li et al, 2019). In cold climates, a CCBE must be well-insulated to prevent fabric heat losses; use heat recovery ventilation to prevent airflow related heat losses; and should incorporate mechanisms to enable collection of solar and ambient heat.…”

BIPV/T facades – A new opportunity for integrated collector-storage solar water heaters? Part 1: State-of-the-art, theory and potential

“…Recent academic advances in PV/T collector development have explored the use of nanofluids to improve heat transfer and nanomaterials for phase change thermal storage or optical filtering (Abdelrazik et al, 2018;Das et al, 2018). Recent advances in system-level approaches, applications, and economics of BIPV/T (Buonomano et al, 2016;Yang & Athienitis, 2016;Barone et al, 2019) include studies on heat pump integration (Good et al, 2015;Calise et al, 2016;Qu et al, 2016) and the multifunction façade context (Li et al, 2019;Tian et al, 2019). .…”

“…Buildings are correspondingly responsible for ~39% of global CO2 emissions which need to be radically and rapidly cut in order to mitigate the climate crisis. For residential and commercial buildings in a variety of climates, BISTS can provide between 10% and 90% of space heating and domestic hot water energy demands (Smyth et al, 2006;Li et al, 2013;Drosou et al, 2014;O'Hegarty et al, 2014;Good et al, 2015;Mehdaoui et al, 2019;Beausoleil-Morrison et al, 2019;Billardo et al, 2019) and BIPV can cover similarly large proportions of building electrical loads (Good et al, 2015;Sorgato et al 2018;Belussi, 2019;Li et al, 2019). Mismatches between energy demands and solar availability (instantaneously, diurnally and over interseasonal timescales) mean that thermal energy storage is an essential part of most BISTS and is crucial for achievement of a high solar fraction.…”