2020
DOI: 10.1016/j.matpr.2020.01.103
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Comparative study of heat transfer characteristics of a tube equipped with X-shaped and twisted tape insert

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Cited by 14 publications
(5 citation statements)
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“…The study also observed that in the case of HLUTT and HLDTT tapes, there is a decrease in the thermal performance factor with an increase in Re and twisted ratios which are showing in Figure 4, whereas in the case of FLTT, the thermal performance factor tends to increase with different twisted ratios and improvements of Re [12]. Paneliya et al, [13] found 1.27 times larger heat transfer enhancement for X-Shaped tapes than twisted tape inserts by comparing the thermal characteristic of water flowing in a tube equipped with X-tape and twisted tape to investigate the effect of insert tape geometry on the heat exchanger tubes [13]. The material of the insert tapes was stainless steel in this study.…”
Section: Twisted Tape Insertsmentioning
confidence: 69%
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“…The study also observed that in the case of HLUTT and HLDTT tapes, there is a decrease in the thermal performance factor with an increase in Re and twisted ratios which are showing in Figure 4, whereas in the case of FLTT, the thermal performance factor tends to increase with different twisted ratios and improvements of Re [12]. Paneliya et al, [13] found 1.27 times larger heat transfer enhancement for X-Shaped tapes than twisted tape inserts by comparing the thermal characteristic of water flowing in a tube equipped with X-tape and twisted tape to investigate the effect of insert tape geometry on the heat exchanger tubes [13]. The material of the insert tapes was stainless steel in this study.…”
Section: Twisted Tape Insertsmentioning
confidence: 69%
“…(3) The thermal performance factor decreases with an increase in Re and twist ratios in the case of HLUTT and HLDTT twisted tapes. Twisted Tapes (X-shaped and twisted tape insert) [13] Water Twist ratio= (3,4); Nusselt Number = (2.91 to 5.16 for the Xshaped and 2.52 to 4.46 and 3.07 to 5.33 for constant and variable pitch twisted tape)…”
Section: Discussionmentioning
confidence: 99%
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“…With an increasing in cut length ratio, the Nusselt number increased or heat transfer enhanced. The rectangular cut twisted tape creates a swirl flow that increases fluid mixing and speeds up heat transmission [17]. Transfer of heat in a circular tube is improved via utilizing a conical ring and twisted tape combination in both reverse flow and swirl flow.…”
Section: Introductionmentioning
confidence: 99%
“…Other than twisted tape, X-shaped tape also becomes a promising shape in order to manipulate the fluid flow inside a tube. Paneliya et al 92 has conducted a comparative study between X-shaped tape and twisted tape. Based on the experimental results, the heat transfer rate produced with X-shaped tape inserts is 1.27 while twisted tape is 1.08 higher as compared to smooth tube.…”
mentioning
confidence: 99%