Comparison of four outdoor pilot-scale photobioreactors

Table 3 Specifications of outdoor pilot-scale photobioreactors

Specifications	ORP	HT	VT	FP
Optical path (m)	0.2	0.046	0.046	0.02^a
Volume (m³)	4.73	0.56	1.06	0.06
Illuminated volume (%)	100	73	71	100
Ground area occupied (m²)	25.4	27.0^b	31.0^b	2.4
Illuminated volume/ground area (m³ m⁻²)	0.186	0.021	0.034	0.023
Expected PE_sunlight (%)^c	1.5	3	n.a.	5

ORP open raceway pond, HT horizontal tubular, VT vertical tubular, FP flat panel photobioreactor
^aAverage optical path of single panels
^bIncluding half of ground area occupied by dummy panels/tube installed at northern and southern side of reactors
^cData from Norsker et al. [3]

ISSN: 2731-3654