Reducing mixing in both flat panel and tubular photobioreactors can result in a positive net energy balance with state-of-the-art technology and Dutch weather conditions. In the tubular photobioreactor, the net energy balance becomes positive at velocities < 0.3 ms-1, at which point the biomass production cost is 3.2 €/kg dry weight. In flat panel reactors, this point is at an air supply rate <...

A state feedback law is proposed for on-line optimization of microalgal growth in a photobioreactor in the presence of non-measurable disturbances. The objective is to maximize a photosynthetic production rate (specific growth rate of microalgae) by manipulating the irradiance. The model describing the growth of microalgae is based on the mechanistic description in the form of the so-called pho...

Cultivation of specific microalgae is still difficult in an industrial setup as contamination and balancing the economic cost are not always possible. Understanding ecology cultivation therefore necessary to implement stable production. The aim study was understand how different types photobioreactors culture medium influenced survival a inoculum, S. almeriensis. bacterial community were studie...

Abstract Microalgae cultivation is considered fit to the concept of green economy, in which greenhouse gases (GHG’s) mitigation and production valuable substances performed simultaneously. Carbon dioxide consumption by algal cells reduces GHG’s emission atmosphere, while biomass conversion biofuel feedstock supports circular economy microalgae process. In this study, Chlorella sp. was cultivate...

This paper investigates a new class of modifier-adaptation schemes to overcome plant-model mismatch in real-time optimization uncertain processes. The main contribution lies the integration concepts from fields Bayesian and derivative-free optimization. proposed embed physical model rely on trust-region ideas minimize risk during exploration, while employing Gaussian process regression capture ...

Abstract Algae offer tremendous potential for the production of various high‐value products (HVPs). Besides light quantity and quality, factors such as temperature, medium composition, pH, aeration are important algae‐specific process parameters that influence growth behavior their chemical composition. Screenings algae HVPs ongoing, but available data cultivability suitability organisms limite...

There were considered the technological and biological aspects of perspective microalgae as a resource alternative energy. An overview analysis current state art from point view assessing use renewable raw material high productivity for producing third-generation biofuels is presented. In recent decades, research in field technologies production biomass energy purposes has focused mainly on sea...

In this study, the influence of solar inclination angles on biomass growth and biomolecule profile Chlorella pyrenoidosa (C. pyrenoidosa) were analyzed in vertical flat–panel photobioreactor (FPPBR). The C. was at three different (32.9°, 47.9°, 90°) a natural open environment with BG-11 medium poultry excreta leachate (PEL). maximum yield obtained 2.40 g/L PEL 1.45 angle 47.9°. 5.09–10.26%, 3.9...

This work describes the characterisation and culture performance of a novel, orbitally shaken, single-use photobioreactor (SUPBr) system for microalgae cultivation. The SUPBr mounted on an orbitally shaken platform was illuminated from below. Investigation of fluid hydrodynamics indicated a range of different flow regimes and the existence of 'in-phase' and 'out-of-phase' conditions. Quantifica...