In this paper, an innovative water-based PhotoVoltaic Thermal (PVT) collector prototype is presented. One of the main novelty of such system is the related economic affordability. This target is obtained through the almost inexpensive elements used for the system construction. Specifically, the PVT collector is composed of a polycrystalline PV module (Figure 1a) coupled to eleven PVC pipes for water heating located in a box under the PV panel (Figure 1b). Th presented system is also suitable for building architectonical integration. It can be used for Domestic Hot Water (DHW) preparation and simultaneously for supplying also electricity to the building. The developed prototype was experimentally tested at the University of Patras under different working and weather conditions. Subsequently, a suitable dynamic simulation model was developed for assessing the energy, economic and environmental performance analysis of the above described system for different weather conditions and building uses. Here, hourly weather data (TMY, IWEC, etc.) can be processed (solar radiation, air temperature and humidity, wind, etc.). The model, implemented in MatLab environment, was successfully validated vs. the above mentioned collected experimental data (a good agreement of the simulation results vs. the measurements was achieved). In addition, in order to optimize the system design, a specific tool for the system parametric analysis was developed and added to the simulation code. By such tool the effects on the collector performance of the variation of different design and operating parameters (i.e. water pipes diameters, water mass flow rate, collector slope, etc.) can be carried out. Finally, in order to investigate the convenience of the presented prototype and the potentiality of the developed simulation tool, a suitable case study is discussed. Here, the PVT collector is coupled to a stratified hot water storage tank for supplying DHW to a single-family house located in three different European weather zones: Freiburg, Naples and Almeria. In order to assess the optimal system layout, different design and operating parameters (including the volume of the storage tank) as well as different DHW demand profiles were investigated. Useful design criteria and interesting energy and economic results were obtained.
Low-cost water-based photovoltaic thermal collectors: experimental investigation and simulation model / Baggio, Paolo; Barone, Giovanni; Buonomano, Annamaria; Forzano, Cesare; Palombo, Adolfo; Panagopoulos, Orestis. - Renewable energies, innovative HVAC systems and envelope technologies for the energy efficiency of buildings(2018), pp. 1-22. (Intervento presentato al convegno SDEWES 2018 - 13th Conference on Sustainable Development of Energy, Water and Environment Systems tenutosi a Palermo, Italy nel September 30th - October 4th 2018).
Low-cost water-based photovoltaic thermal collectors: experimental investigation and simulation model
Giovanni Barone;Annamaria Buonomano;Cesare Forzano;Adolfo Palombo
;
2018
Abstract
In this paper, an innovative water-based PhotoVoltaic Thermal (PVT) collector prototype is presented. One of the main novelty of such system is the related economic affordability. This target is obtained through the almost inexpensive elements used for the system construction. Specifically, the PVT collector is composed of a polycrystalline PV module (Figure 1a) coupled to eleven PVC pipes for water heating located in a box under the PV panel (Figure 1b). Th presented system is also suitable for building architectonical integration. It can be used for Domestic Hot Water (DHW) preparation and simultaneously for supplying also electricity to the building. The developed prototype was experimentally tested at the University of Patras under different working and weather conditions. Subsequently, a suitable dynamic simulation model was developed for assessing the energy, economic and environmental performance analysis of the above described system for different weather conditions and building uses. Here, hourly weather data (TMY, IWEC, etc.) can be processed (solar radiation, air temperature and humidity, wind, etc.). The model, implemented in MatLab environment, was successfully validated vs. the above mentioned collected experimental data (a good agreement of the simulation results vs. the measurements was achieved). In addition, in order to optimize the system design, a specific tool for the system parametric analysis was developed and added to the simulation code. By such tool the effects on the collector performance of the variation of different design and operating parameters (i.e. water pipes diameters, water mass flow rate, collector slope, etc.) can be carried out. Finally, in order to investigate the convenience of the presented prototype and the potentiality of the developed simulation tool, a suitable case study is discussed. Here, the PVT collector is coupled to a stratified hot water storage tank for supplying DHW to a single-family house located in three different European weather zones: Freiburg, Naples and Almeria. In order to assess the optimal system layout, different design and operating parameters (including the volume of the storage tank) as well as different DHW demand profiles were investigated. Useful design criteria and interesting energy and economic results were obtained.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.