PhotoVoltaic/Thermal cogeneration (PV/T) technology seems to offer very interesting prospects, also considering recent economic incentives on renewable energies issued in Italy. Conversely, some problems have to be faced: good thermal behaviour of the module studying the best thermal exchange...

This paper reports on the energetic and economic comparison between electronic and thermostatic expansion valves in a centralized refrigeration plant of a supermarket. Adopting electronic expansion valves enables an appreciable energy saving, due to the fact that electronic valves allow a lower...