Akademik Veri Yönetim Sistemi
Tezin Türü: Doktora
Tezin Yürütüldüğü Kurum: Université Badji Mokhtar, Faculty of Technology, Electromechanics Department, Cezayir
Tezin Onay Tarihi: 2025
Tezin Dili: İngilizce
Öğrenci: Maroua MEKCEM
Asıl Danışman (Eş Danışmanlı Tezler İçin): Hocine Cheghıb
Eş Danışman: Muhittin Bilgili
Özet:
Heat pipes are highly effective heat transfer devices used for thermal management in different fields. The working fluid within the heat pipes provides the heat transport from the evaporator to the condenser and limits their thermal performance. Thus, substitution of conventional working fluids with nanofluids has been a promising solution to enhance the thermal performances of heat pipes.
The wickless gravity assisted heat pipe, called also Two-phase closed thermosyphon (TPCT) is the subject of this study, regarding its importance in various applications such as, permafrost de-icing, solar collectors, nuclear reactors and heat recovery systems.
This study provides important findings of an experimental investigation performed on a miniature copper two-phase closed thermosyphon using three different cellulose nanofiber concentrations with three filling ratios at different heat loads. Effects of these parameters on wall temperature, thermal resistance, and startup are analysed and compared to each other. Furthermore, transient wall temperature variation from the minimum to the maximum applied heat load is analysed for cases of highest and lowest wall temperature distribution.