@article{Grossmann_Matthes_Karwacki_Kwidziński_Tomaszewski_Lackowski_Cenian_2019, title={New results from microalgae production and techniques}, volume={2}, url={https://ojs.gsw.gda.pl/index.php/Eco-Energetics/article/view/109}, DOI={10.24426/eco-energetics.v2i2.109}, abstractNote={<div class="item abstract"> <p>The paper deals with new technical solutions for outdoor cultivation systems for microalgae production. Various types of algae cultivation systems and materials applied for reactors are described. The characteristics and performance of a novel closed photobioreactor system with “Christmas tree” design (brand name: GICON-PBR) consisting of a silicone double-wall tubing-system, developed in collaboration between the companies GICON and Wacker Chemical corporation, are discussed. Special attention is paid to the issue of temperature control for closed cultivation systems. The performance of the chilling system stabilizing the temperature of algae cultivation, which applies a thermal energy storage filled with Phase Change Material (PCM). Two kinds of the systems are considered: free cooling and with compressor units. The lumped-model equations were developed to analyze heat-transfer dynamics inside the installation and some results are presented here. The model equations describe energy balances for the chiller, PCM thermal storage and heat receiver. Influence of the heat transfer, fluid-flow-rate control, heat capacity of the system components as well as heat losses to ambient were taken into account. The results of PCM storage application are compared with reference water-filled buffer-tank. The study shows a great potential of PCM storage unit to stabilize the temperature of the algae cultivation system.</p> </div>}, journal={Eco-Energetics: technologies, environment, law and economy}, author={Grossmann, Jochen and Matthes, Stefan and Karwacki, Jarosław and Kwidziński, Roman and Tomaszewski, Adam and Lackowski, Marcin and Cenian, Adam}, year={2019}, month={cze.}, pages={47–62} }