Research into solar absorption chillers despite their environmental benefits has been limited to date mainly larger systems whilst ignoring smaller building-scale units, which can significantly benefit from the use of optimally designed, low concentrating, non-imaging optical reflectors. A chiller system designed provide year-round space cooling for a typical primary health care facility in Cai...

This work aims to assess the impacts of climate change on photovoltaic (PV) electricity in two Italian cities, with different latitudes and Köppen–Geiger classifications. was undertaken using recent EURO-CORDEX set high-resolution projections PV power generation models, implemented TRNSYS software. Data for variables (surface air temperature solar radiation) were analysed over a long period fro...

The present study investigates the effect of fixed external shading devices’ geometry on thermal comfort, daylighting and energy demand for cooling heating in hot dry climate city Ghardaïa (Algeria). A parametric analysis was performed by using three software: RADIANCE 2.0 DAYSIM 3.1 simulation TRNSYS.17 dynamic simulation. Three device parameters were assessed: spacing between slats, tilted an...

This present work focuses on assessing the techno-economic benefits of different control strategies for a heat pump integrated into solar assisted district heating system (SDHS). The has been developed using dynamic simulation software (TRNSYS) and optimized based genetic algorithm. With an industrial-sized connected to thermal storage tanks domestic hot water (DHW) space (SH) requirements comm...

 In the preset study, the performance of a solar assisted heating, ventilation and air conditioning (HVAC) system in an operating theater building was studied. The yearly performances of the existing HVAC system and the system with the added solar collectors were simulated in terms of energy consumption and provided air conditions using a transient system simulation software (TRNSYS). In t...

Abstract This work aims to improve the knowledge on dynamic thermophysical characterization of building envelopes by comparing three numerical methods applied an experimental wall made masonry brick. The thermal conductivity λ and capacity ρCp are determined performing a data fitting optimization between measurements heat flux resulting from these models. device consists box with controlled amb...

The solar-assisted electric boiler water heating systems adopted in student apartments at universities have some shortcomings, such as unsuitable system designs, unstable supply temperature, and excessive power consumption. As discussed this paper, the hot was reformed, two with same building area, solar collector similar consumption were selected to be used comparative experiments. auxiliary h...

Heating ventilating air-conditioning (HVAC) systems have been increasingly widespread in Italy: they can exploit renewable energies, are energy efficient systems, do not directly consume fossil fuels, and the post-pandemic era, also subject to incentive processes by Italian government. In South Tyrol, harsh climates both winter summer seasons, ground-source heat pump (GSHP) be an excellent solu...