Journal of Fundamentals of Renewable Energy and Applications

Journal of Fundamentals of Renewable Energy and Applications
Open Access

ISSN: 2090-4541

+44 1300 500008

Chlorella sp. microalgae suspensions rheological behaviour analyzes in different culture times


International Congress and Expo on Biofuels & Bioenergy

August 25- 27, 2015 Valencia, Spain

Daniela Guimaraes

Posters-Accepted Abstracts: J Fundam Renewable Energy Appl

Abstract :

Renewable fuels production got greatincentive recently, with fuel prices increase and more environmental issues concerns.
Among raw materials available for biofuels, microalgae emerge as a sustainable alternative due to high productivity and
needlessness in land and water quality. Taking into account the growing interest in microalgae use as raw material for biodiesel
production, this research aims to analyze rheological behavior of microalgae suspensions (Chlorella sp.) in different culture times,
in order to estimate the energy demands of each step, aimed optimizing the continuous-feed tubular bioreactor construction.
Rheological studies are important for obtaining the information needed in the elaboration of projects and equipment that will be
used in various operations existing in systems of production and extraction of algal biomass. Rheological analyses were conducted
with rotational concentric cylinders viscometer (LVDV2T Brookfield viscometer). The Power Law model was adjusted well to the
data of shear stress as a function of strain rate. In all concentrations, the cultures showed non-Newtonian behavior.

Top