Data PVT

The DataPVT.xlsx file is a spreadsheet compiling both electrical data from a water heating system and environmental data from a hybrid photovoltaic/thermal (PV/T) system. This setup includes four photovoltaic modules, with two modules dedicated to photovoltaic (PV) generation and the other two assigned to the hybrid PV/T system. Electrical data encompass the voltage, current, and electrical power values generated by each of the four modules. For the water heating system, temperature and fluid flow data are recorded, while environmental data include ambient temperature, water temperature in the reservoir, solar irradiation, and wind speed.
The data is organized into 22 columns, each displaying the following variables:

Day – Day of data collection.
Time – Data collection time.
V1 - Voltage measured in module 1 of PV system (V).
V2 - Voltage measured in module 2 of PV system (V).
V3 - Voltage measured in module 1 of PV/T system (V).
V4 - Voltage measured in module 2 of PV/T system (V).
I1 - Current measured in module 1 of PV system (A).
I2 - Current measured in module 2 of PV system (A).
I3 - Current measured in module 1 of PV/T system (A).
I4 - Current measured in module 2 of PV/T system (A).
PPV1 - Electrical power generated by module 1 of PV (W).
PPV2 - Electrical power generated by module 2 of PV (W).
PPVT1 - Electrical power generated by module 1 of PV/T (W).
PPVT2 – Electrical power generated by module 2 of PV/T (W).
Tamb - Ambient temperature (°C).
Tboiler - Fluid temperature inside the boiler (°C).
To - Fluid temperature at the heat exchanger outlet (°C).
Tres - Water temperature in the reservatory (°C).
Ti – Fluid temperature at the heat exchanger inlet (°C).
G – Solar irradiation (W/m²).
m ̇ – Mass flow rate of the fluid at the heat exchanger outlet (l/s).
Vwind - Wind speed (m/s).

Data was collected at one-minute intervals (day and night) between August 29 and October 20, 2024. The acquisition system collects twenty samples for each variable, calculates the respective average, and associates it with the date and time when the data was collected.