A PV-T hybrid collector simultaneously generates heat and electrical energy. In the literature the problem is well-known from 70’s, but their optimisation is matter of interest at the moment. In this work, the electrical and thermal output of a solar domestic hot water systems with one-cover-sheet and tube collector has been analysed. The simplest manufacturing model and the most investigated in the literature, has been considered in this preliminary analysis. An one-dimensional mathematical model has been realised and compared with the literature. The mathematical model can calculate the temperatures of solar cells, the temperature of the hot water, the thermal and electric efficiency and the amount of energy supplied during a year at different hourly water consumption rates. Different operative conditions have been simulated for three different places in Italy (Northern, Southern and Middle city). The simulation results indicate that this kind of plants could be an interesting packed solution for the energy saving of residential building in Italy, even if it can be less convenient than a PV panel and a separate thermal collector.
Solar PV-T hybrid plants applied to residential buildings in Italy
FILIPPESCHI, SAURO;FANTOZZI, FABIO
2011-01-01
Abstract
A PV-T hybrid collector simultaneously generates heat and electrical energy. In the literature the problem is well-known from 70’s, but their optimisation is matter of interest at the moment. In this work, the electrical and thermal output of a solar domestic hot water systems with one-cover-sheet and tube collector has been analysed. The simplest manufacturing model and the most investigated in the literature, has been considered in this preliminary analysis. An one-dimensional mathematical model has been realised and compared with the literature. The mathematical model can calculate the temperatures of solar cells, the temperature of the hot water, the thermal and electric efficiency and the amount of energy supplied during a year at different hourly water consumption rates. Different operative conditions have been simulated for three different places in Italy (Northern, Southern and Middle city). The simulation results indicate that this kind of plants could be an interesting packed solution for the energy saving of residential building in Italy, even if it can be less convenient than a PV panel and a separate thermal collector.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
