Figure 5: Photograph and optical transmission data of the flat panel reactor set-up.
From: Solar spectral conversion for improving the photosynthetic activity in algae reactors
Labels in the photograph (a) denote (1) 50 × 50 cm2 reactor with backside mirror and (2) with backside converter and mirror, (3) oxygen and temperature sensors, (4) data acquisition, (5) fan pumps and (6) ultraviolet-disinfection of incoming air. Irradiance/transmittance spectra of the reactor are shown in b: (purple curve, A), as-measured solar irradiance spectrum; (green curve, B), spectrum after the light passes the reactor, but before falling onto the converter material (for 2 × 104 ml−1 of H. pluvialis in active state); (C, blue curve) total transmission spectrum of the reactor before the converter material. The blue/red semitransparent vertical bars represent the absorption/emission bands of the phosphor. a.u., arbitrary unit.
