Can solar control infrared blocking films be used to replace evaporative cooling for growth of Nannochloropsis sp. in plate photobioreactors
作者： Emeka G Nwoba , David A Parlevliet , Damian W Laird , Ashiwin Vadiveloo , Kamal Alameh
DOI: 10.1016/J.ALGAL.2019.101441
关键词: Evaporative cooler 、 Photobioreactor 、 Photosynthetic efficiency 、 Photosynthesis 、 Photovoltaic system 、 Photosystem II 、 Water jacket 、 Infrared 、 Chemical engineering 、 Materials science
摘要: Photobioreactor overheating is a significant challenge of microalgal mass production, resulting in low photosynthetic efficiency and poor biomass productivity. Due to cost performance limitation, passive evaporative cooling systems for managing culture temperature are currently neither economical nor sustainable. In this study, the growth photophysiology Nannochloropsis sp. MUR 267 four different flat plate photobioreactors designs, namely, solar control infrared reflecting film (IRF), insulated glazed photovoltaic (IGP), conventional water jacket (CWJ), no heat (NHC), were evaluated. Maximum attained IRF comparable with CWJ 22.6% lower than NHC. Biomass productivity (112.47 ± 3.36 mg·L−1·d−1) only 10% that CWJ, net was seen NHC due high temperature. The immediate vitality cell apparatus monitored diurnally through effective quantum yield photosystem II (Fq'/Fm') showed values > 0.6 IRF, IGP. This study clear blocking films can significantly reduce PBRs without dramatic reduction performance.
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