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Janardhanam, Vijay

Publications and source records attributed to Janardhanam, Vijay.

From benchtop to raceway: spectroscopic signatures of dynamic biological processes in algal communities

Major scientific challenges hinder the success of an industrial-scale algal biofuels program. Four broad areas of R&D needs have been identified for economically viable, industrial-scale cultivation of algae: culture sustainability; system productivity; nutrient source scaling and sustainability; and water conservation, management, and recycling. Progress in each of these areas is limited by significant knowledge gaps in fundamental algal biology. This SAND report summarizes research conducted as part of an LDRD project (FY10- FY12) to address this shortcoming. We have developed a novel, multidisciplinary, multiscale approach utilizing Sandia’s core expertise in bioanalytical spectroscopy, chemical imaging, remote sensing, genomics, and computational modeling in collaboration with researchers at University of New Mexico and Arizona State University to investigate the effects that dynamic abiotic and biotic stressors have on algal photosynthesis, growth, and lipid production. The discoveries will enable gains in productivity and sustainability that are critical for cost-effective, industrial-scale algal facilities.

Timlin, Jerilyn Ann↗

Sandia National Laboratories environmental fluid dynamics code: pH effects user manual

This document describes the implementation level changes in the source code and input files of Sandia National Laboratories Environmental Fluid Dynamics Code (SNL-EFDC) that are necessary for including pH effects into algae-growth dynamics. The document also gives a brief introduction to how pH effects are modeled into the algae-growth model. The document assumes that the reader is aware of the existing algae-growth model in SNL-EFDC. The existing model is described by James, Jarardhanam and more theoretical considerations behind modeling pH effects are presented therein. This document should be used in conjunction with the original EFDC manual and the original water-quality manual.

22 GENERAL STUDIES OF NUCLEAR REACTORS↗