@ARTICLE{Andrzejczyk_Rafał_The_2017, author={Andrzejczyk, Rafał and Muszyński, Tomasz}, number={No 3}, journal={Archives of Thermodynamics}, pages={3-21}, howpublished={online}, year={2017}, publisher={The Committee of Thermodynamics and Combustion of the Polish Academy of Sciences and The Institute of Fluid-Flow Machinery Polish Academy of Sciences}, abstract={In this study, the influences of different parameters at performance two-phase closed thermosiphon (TPCT) was presented. It has been confirmed that the working fluid, as well as operating parameters and fill ratio, are very important factors in the performance of TPCT. The article shows characteristics of gravitational tube geometries, as well as the technical characteristic of the most important system components, i.e., the evaporator/condenser. The experiment’s plan and the results of it for the two-phase thermosiphon for both evaluated geometries with varying thermal and fluid flow parameters are presented. Experiments were performed for the most perspective working fluids, namely: water, R134a, SES36, ethanol and HFE7100. Obtained research proves the possibility to use TPCT for heat recovery from the industrial waste water.}, type={Artykuły / Articles}, title={The performance of H2O, R134a, SES36, ethanol, and HFE7100 two-phase closed thermosyphons for varying operating parameters and geometry}, URL={http://journals.pan.pl/Content/105653/PDF/01_paper.pdf}, doi={10.1515/aoter-2017-0013}, keywords={two-phase closed thermosiphon, heat pipe, energy efficiency, NTU, number of heat transfer units, heat recovery}, }