Table 1.

Overview of average and maximal areal and volumetric productivities and average and maximal photosynthetic efficiencies obtained in summer 2013 (July–August)

Photobioreactor	ORP		HT		VT		FP
	Avg	Max	Avg	Max	Avg	Max	Avg	Max
P x,ground (g m−2 day−1)	9.7	14.0	12.1	15.7	19.4	24.4	20.5	27.5
P x,vol (g L−1 day−1)	0.03	0.08	0.65	0.85	0.57	0.71	0.90	1.20
Dilution rate (day−1)	0.14	0.12	0.25	0.34	0.27	0.40	0.27	0.36
Number of days	24	8	36	8	36	8	36	4
Photosynthetic efficiency (% sunlight)	1.1	1.5	1.5	1.8	2.4	4.2	2.7	3.8
Dilution rate (day−1)	0.16	0.12	0.25	0.28	0.27	0.24	0.27	0.18
Number of days	24	8	36	6	36	9	36	3

Dilution rates are measured values. Maximal areal and volumetric productivities were obtained in a single week in July with a high average photon flux density; 44 mol m⁻² day⁻¹