Thermo-hydraulic performance investigation of a heat exchanger tube inserted with twisted tapes modified with various twist ratio and alternate axis

UYANIK, MAHMUT; dagdevir, toygun; Ozceyhan, Veysel

Thermo-hydraulic performance investigation of a heat exchanger tube inserted with twisted tapes modified with various twist ratio and alternate axis

Mahmut UYANIK, (Erciyes Üniversitesi, Mühendislik Fakültesi, Makine Mühendisliği Bölümü, Kayseri, Türkiye)

Toygun DAĞDEVİR, (Erciyes Üniversitesi, Mühendislik Fakültesi, Makine Mühendisliği Bölümü, Kayseri, Türkiye)

Veysel ÖZCEYHAN (Erciyes Üniversitesi, Mühendislik Fakültesi, Makine Mühendisliği Bölümü, Kayseri, Türkiye)

European Mechanical Science

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Yıl: 2022 Cilt: 6 Sayı: 3 Sayfa Aralığı: 189 - 195 Metin Dili: İngilizce İndeks Tarihi: 14-09-2022

Thermo-hydraulic performance investigation of a heat exchanger tube inserted with twisted tapes modified with various twist ratio and alternate axis

Öz:

This paper presents a numerical investigation on a heat transfer enhancement by using a computational fluid dynamics software. The heat transfer enhancement is implemented by inserting twisted tape into a heat exchanger tube. The twisted tapes with twist ratios of 4, 6 and 8 were modified with alternate axis. The pitch of the twisted tape having the rotation direction such as clockwise and counterclockwise are connected with 90º connection angle. Water is selected as working fluid and turbulent flow condition corresponding to Reynolds number ranging from 5000 to 29000 are considered in the study. The heat exchanger tube is under constant heat flux of 50 kW/m2. Numerical analysis results prove that the use of twisted tape improves thermal performance compared to smooth tube. As the twist ratio increased, the heat transfer performance and the friction loss penalty decreased. Overall results are determined with thermohydraulic performance criteria (THP). The highest THP value is obtained as 1.21 for the tube inserted with the twisted tape which has the twist ratio of 4 and alternate axis between the twist pitches at Reynolds number of 5913

Anahtar Kelime: Heat transfer enhancement twisted tape alternate axis friction factor performance evaluation criteria.

Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık

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APA	UYANIK M, dagdevir t, Ozceyhan V (2022). Thermo-hydraulic performance investigation of a heat exchanger tube inserted with twisted tapes modified with various twist ratio and alternate axis. , 189 - 195.
Chicago	UYANIK MAHMUT,dagdevir toygun,Ozceyhan Veysel Thermo-hydraulic performance investigation of a heat exchanger tube inserted with twisted tapes modified with various twist ratio and alternate axis. (2022): 189 - 195.
MLA	UYANIK MAHMUT,dagdevir toygun,Ozceyhan Veysel Thermo-hydraulic performance investigation of a heat exchanger tube inserted with twisted tapes modified with various twist ratio and alternate axis. , 2022, ss.189 - 195.
AMA	UYANIK M,dagdevir t,Ozceyhan V Thermo-hydraulic performance investigation of a heat exchanger tube inserted with twisted tapes modified with various twist ratio and alternate axis. . 2022; 189 - 195.
Vancouver	UYANIK M,dagdevir t,Ozceyhan V Thermo-hydraulic performance investigation of a heat exchanger tube inserted with twisted tapes modified with various twist ratio and alternate axis. . 2022; 189 - 195.
IEEE	UYANIK M,dagdevir t,Ozceyhan V "Thermo-hydraulic performance investigation of a heat exchanger tube inserted with twisted tapes modified with various twist ratio and alternate axis." , ss.189 - 195, 2022.
ISNAD	UYANIK, MAHMUT vd. "Thermo-hydraulic performance investigation of a heat exchanger tube inserted with twisted tapes modified with various twist ratio and alternate axis". (2022), 189-195.

APA	UYANIK M, dagdevir t, Ozceyhan V (2022). Thermo-hydraulic performance investigation of a heat exchanger tube inserted with twisted tapes modified with various twist ratio and alternate axis. European Mechanical Science, 6(3), 189 - 195.
Chicago	UYANIK MAHMUT,dagdevir toygun,Ozceyhan Veysel Thermo-hydraulic performance investigation of a heat exchanger tube inserted with twisted tapes modified with various twist ratio and alternate axis. European Mechanical Science 6, no.3 (2022): 189 - 195.
MLA	UYANIK MAHMUT,dagdevir toygun,Ozceyhan Veysel Thermo-hydraulic performance investigation of a heat exchanger tube inserted with twisted tapes modified with various twist ratio and alternate axis. European Mechanical Science, vol.6, no.3, 2022, ss.189 - 195.
AMA	UYANIK M,dagdevir t,Ozceyhan V Thermo-hydraulic performance investigation of a heat exchanger tube inserted with twisted tapes modified with various twist ratio and alternate axis. European Mechanical Science. 2022; 6(3): 189 - 195.
Vancouver	UYANIK M,dagdevir t,Ozceyhan V Thermo-hydraulic performance investigation of a heat exchanger tube inserted with twisted tapes modified with various twist ratio and alternate axis. European Mechanical Science. 2022; 6(3): 189 - 195.
IEEE	UYANIK M,dagdevir t,Ozceyhan V "Thermo-hydraulic performance investigation of a heat exchanger tube inserted with twisted tapes modified with various twist ratio and alternate axis." European Mechanical Science, 6, ss.189 - 195, 2022.
ISNAD	UYANIK, MAHMUT vd. "Thermo-hydraulic performance investigation of a heat exchanger tube inserted with twisted tapes modified with various twist ratio and alternate axis". European Mechanical Science 6/3 (2022), 189-195.