20.500.12556/RUL-170936 Assessment of building renovation with modular ventilated FIPVT in terms of energy efficiency and indoor environment in office buildings Energy renovation will be the challenge to fulfil the goal of zero energy for building stock. Article presents the design, modelling and performance evaluation for a modular solution of a façade-integrated photovoltaic system upgraded to supply heat and cold to the attached building (FIPVT) based on the “Balcony PV” solution. Different designs and operating strategies were analysed, from the fully integrated, naturally ventilated to bi-directionally, 3D, forced entilated FIPVT. The research was based on in-situ experiments, computational fluid dynamics (CFD) modelling and energy efficiency evaluations with the building energy modelling (BEM) tool. Experiments showed that the thermal mass of the FIPVT causes a pronounced dynamic thermal response, with the diurnal difference of the PV temperature θ$_{PV}$ being up to ± 15 K compared to the static model, and multiparametric models of quasi-dynamic temperature difference Δθ$_{dyn}$ were developed for time step numerical modelling. User-defined macros were integrated into the BEM tool for an all-year evaluation of the FIPVT. A case study showed that the efficiency of the solar energy utilization increased to 28.3 % for the forced ventilated FIPVT and could be further increased with a battery having an optimal capacity of 0.35 kWh per m$^2$ of FIPVT. net-zero-energy buildings energy renovation of buildings buildings energy modelling façade-integrated PVT quasi-dynamic numerical modelling ničenergijske stavbe energijska prenova stavb energijsko modeliranje stavb fasadno integrirana fotonapetostna tehnologija PVT kvazidinamično numerično modeliranje true false true Angleški jezik Slovenski jezik Članek v reviji 2025-07-22 10:59:52 2025-07-22 10:59:54 2026-07-03 04:23:20 0000-00-00 00:00:00 2025 0 0 17 str. pt. A, art. 127497 Vol. 279 Nov. 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.383.51:725 1359-4311 10.1016/j.applthermaleng.2025.127497 243346179 1-s2.0-S1359431125020897-main.pdf 1-s2.0-S1359431125020897-main.pdf 1 7BBBDA8308BE653B16E71B3084A9BB96 9754660192ec988cd3062153fe0a4211d3bd6d85f2a22a1353ff0cbc9ce25baf c447088e-75ff-11f1-9b0d-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=236860 https://www.sciencedirect.com/science/article/pii/S1359431125020897 1 39a640b1-66da-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=213225 Fakulteta za strojništvo 0 0 0