Next Article in Journal
Proposal for a Methodology for Sustainable Rehabilitation Strategies of the Existing Building Stock—The Ponte Gêa Neighborhood
Previous Article in Journal
Autonomous Underwater Robot Fuzzy Motion Control System with Parametric Uncertainties
Previous Article in Special Issue
Is Innovation Redesigning District Heating? A Systematic Literature Review
Article

Spraying Cooling System for PV Modules: Experimental Measurements for Temperature Trends Assessment and System Design Feasibility

Department of Industrial Engineering, University of Padova, Via Venezia 1, 35131 Padova, Italy
*
Author to whom correspondence should be addressed.
Academic Editors: Vesa Ruuskanen and Hamid Reza Karimi
Received: 31 December 2020 / Revised: 18 March 2021 / Accepted: 21 March 2021 / Published: 1 April 2021
(This article belongs to the Special Issue Planning for Home Renewable Energy Systems)
The hallmark of the PhotoVoltaic (PV) electricity generation is its sustainability, while its main weakness is the low conversion efficiency. A drawback to which is added the PV cell sensitivity to temperature variations: the higher the cell operating temperature, the lower the efficiency. Considering that in-operation modules reach a conversion efficiency in the range of 10 to 15%, there is an urgent need to control their temperature to enhance the electricity generation. To this purpose, the authors developed a PV spraying cooling system able to drastically knockdown modules operating temperature. Using experimental measurements acquired through a dedicated test rig and after an in-depth literature review, the authors analyze the nozzles number, geometry, and position, as well as water and module’s temperature distribution, limestones formation, degradation of front glass properties, water consumption, and module power production with and without the cooling system. The experimental campaign shows that a cooling system equipped with three nozzles with a spraying angle of 90°, powered by water at 1.5 bar and managed in ON/OFF mode (30 s on to 180 s off), can improve the module’s efficiency from 11.18% to 13.27% thanks to a temperature reduction of up to 24 °C. Despite the improvement in electricity production (from 178.88 W to 212.31 W per single module), at the time of writing, the equipment and installation costs as well as the plant arrangement complexity make the investment not eligible for financing also in the case of a 1 MW floating PV facilities. View Full-Text
Keywords: photovoltaics cooling; water film cooling; water spraying cooling; temperature reduction; PV energy efficiency photovoltaics cooling; water film cooling; water spraying cooling; temperature reduction; PV energy efficiency
Show Figures

Figure 1

MDPI and ACS Style

Benato, A.; Stoppato, A.; De Vanna, F.; Schiro, F. Spraying Cooling System for PV Modules: Experimental Measurements for Temperature Trends Assessment and System Design Feasibility. Designs 2021, 5, 25. https://0-doi-org.brum.beds.ac.uk/10.3390/designs5020025

AMA Style

Benato A, Stoppato A, De Vanna F, Schiro F. Spraying Cooling System for PV Modules: Experimental Measurements for Temperature Trends Assessment and System Design Feasibility. Designs. 2021; 5(2):25. https://0-doi-org.brum.beds.ac.uk/10.3390/designs5020025

Chicago/Turabian Style

Benato, Alberto, Anna Stoppato, Francesco De Vanna, and Fabio Schiro. 2021. "Spraying Cooling System for PV Modules: Experimental Measurements for Temperature Trends Assessment and System Design Feasibility" Designs 5, no. 2: 25. https://0-doi-org.brum.beds.ac.uk/10.3390/designs5020025

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop