Giuseppe Starace

TL;DR: In this paper, the efficiency and energy behavior of Ground Source Heat Pumps (GSHPs) used for heating and cooling of buildings were investigated. But the main results pointed out the heat fluxes transferred to and from the ground and the efficiency of the system.

TL;DR: In this paper, a two-dimensional numerical model of the falling film evaporation on horizontal tubes is presented, where the temporal change characteristics of the film flow process were studied and different types of flow (stable film and drops mode) were investigated, by varying the ratio between the water-to-air mass flow ratio.

TL;DR: In this article, a numerical analysis of a cross-flow heat exchanger was carried out to verify the influence of the hydrodynamic regimes of the fluids involved in the heat transfer process, induced by fins in the channels, on the performances of the whole HX.

TL;DR: In this article, the authors compared the performance of a new DAR thermodynamic model with the predictions of Zohar et al. The main difference is due to an accurate modeling of the refrigerant composition, assumed there as pure ammonia.

TL;DR: In this paper, a multi-scale approach is proposed to estimate the heat transfer geometry at the micro-scale using both numerical and analytical approaches, which leads to a better accuracy level with respect to the full-scale one and allows to profitably investigate different fins influence on flow distributions.