News Column

HyPerComp, Inc. Reports Findings in Chemical Engineering

February 12, 2014

By a News Reporter-Staff News Editor at Journal of Engineering -- A new study on Chemical Engineering is now available. According to news reporting from Westlake Village, California, by VerticalNews journalists, research stated, "This study provides design and operational guidelines for achieving maximum biomass productivity in outdoor photobioreactors (PBRs). Detailed simulations of coupled light transfer and growth kinetics of microalgae were performed for open ponds, vertical flat-plate, and tubular PBRs operated in batch mode and exposed to time-dependent collimated and diffuse solar irradiance."

The news correspondents obtained a quote from the research from HyPerComp, Inc., "The temporal evolution of microalgae concentration was predicted by accounting for light saturation, photoinhibition, and respiration. Three-dimensional spectral light transfer simulations of collimated and diffuse solar radiation in the PBRs were performed at different times of the day. The green microalgae Chlamydomonas reinhardtii was used for illustration purposes. The study demonstrated that the daily productivity per unit of illuminated surface area for PBRs operated in batch mode was identical and depended uniquely on the ratio X-0/a where X-0 is the initial microalgae concentration and a is the illuminated surface area per unit volume of PBR. A maximum daily productivity of about 0.045 kg/m(2)/day was achieved for X-0/a = 0.035 kg/m(2). Remarkably, similar results were obtained with experimental data and other simulation results based on different models reported in the literature, for different microorganisms and PBRs operated in continuous mode."

According to the news reporters, the research concluded: "The PBR optical thickness, represented by X-0/a, constitutes a convenient parameter for designing (via a) and operating (via X-0) these PBRs to achieve their maximum performance."

For more information on this research see: Design tool and guidelines for outdoor photobioreactors. Chemical Engineering Science, 2014;106():18-29. Chemical Engineering Science can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England. (Elsevier -; Chemical Engineering Science -

Our news journalists report that additional information may be obtained by contacting E. Lee, HyPerComp Inc, Westlake Village, CA 91361, United States. Additional authors for this research include J. Pruvost, X. He, R. Munipalli and L. Pilon.

Keywords for this news article include: California, United States, Westlake Village, Chemical Engineering, North and Central America

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Source: Journal of Engineering

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