International Journal of Photoenergy / 2013 / Article / Tab 1

Research Article

Improving the Electrical Parameters of a Photovoltaic Panel by Means of an Induced or Forced Air Stream

Table 1

Sensors description.

Sensor modelCharacteristics

B Class Precision Pt100 Probes(i) Measure the temperature of the panel
(ii) Manufacturer: TC direct
(iii) Range: −50–150°C
(iv) Accuracy: ±0.5100°C

A Class Precision Pt100 Probes
(i) Measure the temperature of the air flow
(ii) Manufacturer: TC direct
(iii) Range: −50–250°C
(iv) Accuracy: ±0.3600°C

Hot Film Anemometers EE66-C(i) Measure the air velocity, natural convection
(ii) Manufacturer: E+E electronik
(iii) Range: 0–2 m/s
(iv) Accuracy: ±(0.06 m/s + 2%)

Hot Film Anemometers EE65-C(i) Measure the air velocity, forced convection
(ii) Manufacturer: E+E electronik
(iii) Range: 0–20 m/s
(iv) Accuracy: ±(0.2 m/s + 3%)

Precision Pyranometer
PSP
(i) Measure the global radiation
(ii) Manufacturer: EPPLEY Precision Spectral Pyranometer (PSP)
(iii) Range: 0–1200 W/m2

Electronik Load(i) Electronic governor
(ii) Obtain the characteristic curve
(iii) Manufacturer: Universidad Politécnica de Cartagena
(iv) Range: 0–100 V
    0–10 A
(v) Accuracy: ±5 mV
     ±5.4 mA

Data Logger 34980A(i) Data acquisition system
(ii) Collect and register data
(iii) Manufacturer: Agilent
(iv) Accuracy (%reading + %range): Depending on type of input
  Temperature sensors: ±0.0060°C
  Anemometers: 0.0050% + 0.0005%
  PV Panel voltage: 0.0035% + 0.0005%
  PV Panel current: 0.0050% + 0.0005%
  Pyranometer: 0.0050% + 0.0005%