1 / 10

WIMEA-ICT RC1 Radiation and diffusor test

WIMEA-ICT RC1 Radiation and diffusor test. J. Reuder, M. Schneider, Andrew Seidl, Bjorn Pehrsson, Robert Olsson. Setup. 3 different sensors: Vishay BPW20R Excelitas VTB8440BH Hamamatsu 3 diffusor setups no diffusor 1 mm teflon diffusor 3 mm teflon diffusor .

bosco
Download Presentation

WIMEA-ICT RC1 Radiation and diffusor test

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. WIMEA-ICT RC1Radiation and diffusor test J. Reuder, M. Schneider, Andrew Seidl, Bjorn Pehrsson, Robert Olsson WIMEA ICT RC3 workshop Kampala, 29.08.-02.09.2016

  2. Setup • 3 different sensors: • Vishay BPW20R • Excelitas VTB8440BH • Hamamatsu • 3 diffusor setups • no diffusor • 1 mm teflon diffusor • 3 mm teflon diffusor installation side by side with the GFI reference sensor for solar irradiance: data used for this comparison: 18.06.-24.08.2016 WIMEA ICT RC3 workshop Kampala, 29.08.-02.09.2016

  3. Scatter plot for all available 5 minute averages – no diffusor Without diffusor two of the sensors show a saturation effect (Vishay BPW20R at around 600 Wm-2, Hamamatsu S1223 already at around 300 Wm-2) WIMEA ICT RC3 workshop Kampala, 29.08.-02.09.2016

  4. Scatter plot for all available 5 minute averages – 1mm diffusor • the saturation effect disappears when using the 1 mm or 3mm diffusor • here the Excelitas sensor shows a large spread WIMEA ICT RC3 workshop Kampala, 29.08.-02.09.2016

  5. Scatter plot for all available 5 minute averages – 3 mm diffusor WIMEA ICT RC3 workshop Kampala, 29.08.-02.09.2016

  6. Scatter plots with error bars – no diffusor, 5 minute avg. WIMEA ICT RC3 workshop Kampala, 29.08.-02.09.2016

  7. Scatter plots with error bars – 1 mm diffusor, 5 minute avg. WIMEA ICT RC3 workshop Kampala, 29.08.-02.09.2016

  8. Scatter plots with error bars – 3 mm diffusor, 5 minute avg. WIMEA ICT RC3 workshop Kampala, 29.08.-02.09.2016

  9. Scatter plots with error bars – Hamamatsu, 3mm diffusor • the Hamamatsu S1223 provides the best results in the test • the accuracy (see table) increases with longer averaging intervals WIMEA ICT RC3 workshop Kampala, 29.08.-02.09.2016

  10. recommendations • use the Hamamatsu S1223 with 3 mm diffusor for Gen 3 • as the reliable solar radiation data from Bergen are limited to ca. 700 Wm-2 (bad summer in Bergen) we suggest a continuation of the test on the Gen2 deployments in Uganda, Tanzania and South Sudan • the corresponding nodes should be eqipped with the 3 mm teflon diffusor • 4-6 weeks of measurements should be conclusive results comparable to those in Bergen, but extending the global irradiance range to around 1000 Wm-2 WIMEA ICT RC3 workshop Kampala, 29.08.-02.09.2016

More Related