Scopus
Investigation of effects on turbulent heat transfer of twisted wavy tape elements in the tube
International Journal of Thermal Sciences · Mart 2023
Makale Bilgileri
DergiInternational Journal of Thermal Sciences
Yayın TarihiMart 2023
Cilt / Sayfa185
Scopus ID2-s2.0-85143654352
Özet
In this study, the turbulence effects created by the twisted wavy tape elements placed inside a plain tube were investigated with experimental results. Changes in heat transfer and pressure drop due to turbulence generation by the tape elements were examined experimentally. The results obtained for a plain tube were compared to the literature and the experimental system was validated. The Re range of the experiments was between 5000 and 20,000. Geometrical parameters were two different amplitudes of twisted wavy tape elements with a single width value and a single twist ratio. In addition, by changing the number of waves, a total of 6 twisted wavy tape elements were used. According to the results, the highest performance factor is obtained around Re = 5000 for the lowest twisted wavy tape element amplitude and highest wavenumber. On the other hand, the minimum pressure drop is calculated for the minimum wavenumber. In addition, it is observed that there is an increase in pressure drop and heat transfer depending on the increase in the number of waves. Compared to the twisted tape element, a performance enhancement of around 42% was found in the case of the twisted wavy tape element.
Yazarlar (3)
1
Aziz Hakan Altun
ORCID: 0000-0002-1546-1104
2
Soner Ors
3
Sercan Dogan
Anahtar Kelimeler
Heat transfer enhancement
Performance factor
Thermal and hydraulic performance
Twisted wavy tape elements
Twist ratio
Kurumlar
Konya Technical University
Konya Turkey
Selçuk Üniversitesi
Selçuklu Turkey
Metrikler
21
Atıf
3
Yazar
5
Anahtar Kelime