De Lorenzo

DL SOLAR-A

A didactic system for a theoretical and practical study of photovoltaic solar energy facilities. It is mounted on a mobile structure that allows it to be moved to the venue for practical sessions and allowing the photovoltaic panel to receive solar radiation.

Training Objectives:

  • Identification of all components of the trainer and how they are associated with its operation.
  • Measurement of solar irradiation.
  • Measurement of the voltage and power.
  • parameters of the photovoltaic panel .
  • Programming the load regulator.
  • Analysis of the installation of the trainer.
  • Direct current supply.
  • Alternating current supply.

TECHNICAL SPECIFICATIONS:

  • 50 W, 12 V photovoltaic panels.
  • Cell for measuring solar irradiation.
  • Programmable electronic load regulator, with a large LCD screen.
  • 150 Watt semi sinusoidal inverter to obtain 230 V of alternating current.
  • Lamps used with loads of 12 V and 230 V
  • Instrument used to measure solar irradiation in W/m2.
  • Instrument used to measure the charging current.
  • Two protective magneto-thermal switches.

DL SOLAR-B

Modular trainer for the theoretical-practical study of the electrical installations with photovoltaic solar energy

Training Objectives:

  • Measurement of solar irradiation
  • Measurement of the voltage of the photovoltaic panel at no-load
  • Graph of current – voltage of the photovoltaic panel
  • Measurement of the voltage of the panel in overload
  • Regulation and charge of the battery
  • Direct current solar plant
  • Alternate current solar plant
  • Dimensioning criteria

TECHNICAL SPECIFICATIONS:

  • A photovoltaic inclinable module, 90W, 12V, complete with a cell for measuring the solar irradiation and with a temperature sensor.
  • A supporting frame for the modules.
  • A battery control module, 12V, 32A.
  • A load module. It includes two 12V lamps, dichroic 20W and LED 3W, with independent switches.
  • A load module. It includes two mains voltage lamps, dichroic 35W and LED 3W, with independent switches.
  • An electronic regulation module, with LCD screen.
  • A rheostat.
  • A module for the measurement of: solar irradiation (W/m2), solar panel temperature (°C), current up to 30V, ± 15A (two dc ammeters), voltage up to 40V and power up to 300W.
  • A dc to ac converter module, with sinusoidal output at mains voltage. Average power: 300 W

DL SOLAR-C

Trainer for the theoretical and practical study of the applications of the photovoltaic solar energy in a house.

Training Objectives:

  • Identification of all the operational components and controls, and association with their functions. Placing the equipment into operation and testing the lighting bridge.
  • Measurement of solar irradiation
  • Connection of the photovoltaic modules and measurement of their voltage and short-circuit current, with the light in the classroom and from the lighting bridge.
  • Lighting for homes. Interconnect the six photovoltaic modules and apply the obtained voltage to the house in which a charge regulator and its corresponding battery are assumed to be installed.
  • Measurement of battery voltage.
  • Irrigation system. Experiment with the operation of the motor used to extract water from a well.
  • Calculation of electrical consumption

TECHNICAL SPECIFICATIONS:

    A simulation panel with the graphical representation of a house, complete with lamps, switches, motor for the extraction of water, etc.
  • Six photovoltaic modules with 2 mm. terminals for experiencing series, parallel and mixed configurations and for measuring voltage and current as a function of the solar irradiation.
  • A battery for experimenting energy accumulation.
  • A digital multimeter for performing the measurements.
  • A lighting bridge over the photovoltaic modules with two 50 W dichroic lamps and an electronic light regulator. It is possible to change the inclination of the bridge from 0 to 90° as well as the intensity of the light in order to simulate in the classroom the effect of the solar irradiation in the different hours of the day.

DL SOLAR-D1

Didactic system for the study of the generation of electric energy from photovoltaic panels and its inlet in the mains network.

Training Objectives:

  • Measuring the mains voltage
  • Measuring the load current, voltage, power and energy
  • Setting the solar panel to the most irradiated position.
  • Changing the inclination of the solar panel
  • Changing the azimuth of the solar panel
  • Covering the solar panel with different materials
  • Obtaining the solar irradiation data
  • Obtaining the solar panel voltage-irradiation curve
  • Calculating the inner resistance of the solar panel
  • Obtaining the solar panel current-voltage curve
  • Measuring the electricity delivered to the mains grid
  • Measuring the electricity produced by the solar panel and delivered/taken from the mains grid
  • Measuring the electricity produced by the solar panel, delivered/ taken from the mains grid, and the loading of lamps.

TECHNICAL SPECIFICATIONS:

  • A photovoltaic inclinable module, 90W, 12V, complete with a cell for measuring the solar irradiation and with a temperature sensor.
  • A supporting frame for the modules.
  • A load module. It includes two mains voltage lamps, dichroic 35W and LED 3W, with independent switches.
  • A power rheostat, 6A, 80 W.
  • A differential magneto-thermal switch module
  • .
  • A module for the measurement of: solar irradiation (W/m2), solar panel temperature (°C), solar panel current, load current, solar panel voltage and active power at mains voltage.
  • A grid tie inverter, with output at mains voltage, 12 V, 300 W.
  • An electric energy measurement module in kW/h.
  • A network distributor.

DL SUN-TRACKER

For the study of the operation of a solar panel that follows the sun light direction thanks to a motor system.

Training Objectives:

With the trainer, it is possible to monitor the most meaningful parameters of the sun tracker and to compare them with the expected optimal setting according to the actual sun position.

TECHNICAL SPECIFICATIONS:

  • A two-axis solar tracking system, 2 x 20W, 12V, to allow the tracking of the sun light direction.
  • A supporting frame for the modules.
  • A battery.
  • A battery charge regulator, 12V, 30A.
  • A circuit breaker.

DL SIMSUN

This is used to provide suitable lighting to the photovoltaic solar module that is used in the DL SOLAR‐B, DL SOLAR‐D1 and DL SUN‐WIND De Lorenzo trainers. The light intensity can be manually adjusted through a potentiometer or automatically controlled through a 0‐10 V input, to allow performing experiments with different light intensities, therefore simulating the light conditions from dawn to twilight.

The DL SIMSUN includes the following main components:

  • 4 off halogen lamps, 300 W each
  • Dimmer for controlling the light intensity
  • Magneto‐thermal switch, differential 10A
  • Potentiometer, 10k

  • TECHNICAL SPECIFICATIONS:

    • A two-axis solar tracking system, 2 x 20W, 12V, to allow the tracking of the sun light direction.
    • A supporting frame for the modules.
    • A battery.
    • A battery charge regulator, 12V, 30A.
    • A circuit breaker.

    DL TM10

    The simulator allows the study, the performing of experiments and the troubleshooting for the following systems. Instantaneous geyser,Store electric water heater,Solar system for sanitary water production with boiler integration, Central system for heating and sanitary water production. These systems are reproduced on the panel, through a colour representation which allows a complete analysis of the fluid circuit, of its components and of the electrical/electronic circuit for control and regulation.

    TRAINING OBJECTIVES

    It is possible to simulate the behavior of components and systems, on the basis of the operating conditions which can be monitored directly on the panel or through Personal Computer by teacher and students. The Personal Computer constantly keeps under control the simulation in progress and displays its behavior through analog and digital signals and meters; in this way the student, through measurements and tests, can go on with the troubleshooting.

    TECHNICAL DESCRIPTION:

    • Solar panel with natural circulation, with tank for sanitary water storage
    • Boiler and relevant gas burner
    • Safety and regulation devices for the boiler
    • Boiler for sanitary water storage
    • Boiler pump
    • Sanitary water regulation thermostat
    • Probe for boiler temperature and boiler sanitary water thermometer
    • Probe for stored sanitary water temperature through solar panels
    • Safety valve
    • Electrovalve for control of the heating through solar panel or through solar panel with boiler integration
    • Sanitary water with heating through boiler
    • Gas boiler
    • Safety and regulation devices for the boiler
    • Flame control device
    • Modulating valve for gas capacity
    • Heating circulation pump
    • Expansion tank
    • Air exhaust valve
    • Boiler for sanitary water storage
    • Boiler pump
    • Sanitary water regulation thermostat
    • Probe for boiler temperature and boiler sanitary water thermometer
    • Safety valves
    • Magnesium anode