Performance characteristics of a novel shell and tube heat exchanger with shell side interstitial twisted tapes for viscous fluids application

Zahid H. Ayub; Dapeng Yang; Tariq S. Khan; Ebrahim Al-Hajri; Adnan H. Ayub

doi:10.1016/j.applthermaleng.2018.01.054

Performance characteristics of a novel shell and tube heat exchanger with shell side interstitial twisted tapes for viscous fluids application

Zahid H. Ayub, Dapeng Yang, Tariq S. Khan, Ebrahim Al-Hajri, Adnan H. Ayub

Mechanical & Nuclear Engineering

Isotherm Inc.

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

A unique shell and tube heat exchanger with interstitial twisted tapes was tested with propylene glycol/water solution. Propylene glycol concentration was varied between 0 and 40% by volume. Same size conventional shell and tube exchanger with single segmental baffles was also tested under similar temperature and flow conditions. Results from the two exchangers were then compared. The new design heat exchanger showed better thermal enhancement index for the whole range of fluid concentrations. Correlations for Nusselt number and Darcy friction factor were proposed for both heat exchangers.

Original language	British English
Pages (from-to)	248-255
Number of pages	8
Journal	Applied Thermal Engineering
Volume	134
DOIs	https://doi.org/10.1016/j.applthermaleng.2018.01.054
State	Published - Apr 2018

Keywords

Segmental baffle
Shell and tube
Twisted tape
Viscous flow

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10.1016/j.applthermaleng.2018.01.054

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title = "Performance characteristics of a novel shell and tube heat exchanger with shell side interstitial twisted tapes for viscous fluids application",

abstract = "A unique shell and tube heat exchanger with interstitial twisted tapes was tested with propylene glycol/water solution. Propylene glycol concentration was varied between 0 and 40% by volume. Same size conventional shell and tube exchanger with single segmental baffles was also tested under similar temperature and flow conditions. Results from the two exchangers were then compared. The new design heat exchanger showed better thermal enhancement index for the whole range of fluid concentrations. Correlations for Nusselt number and Darcy friction factor were proposed for both heat exchangers.",

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author = "Ayub, {Zahid H.} and Dapeng Yang and Khan, {Tariq S.} and Ebrahim Al-Hajri and Ayub, {Adnan H.}",

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AU - Ayub, Zahid H.

AU - Yang, Dapeng

AU - Khan, Tariq S.

AU - Al-Hajri, Ebrahim

AU - Ayub, Adnan H.

PY - 2018/4

Y1 - 2018/4

N2 - A unique shell and tube heat exchanger with interstitial twisted tapes was tested with propylene glycol/water solution. Propylene glycol concentration was varied between 0 and 40% by volume. Same size conventional shell and tube exchanger with single segmental baffles was also tested under similar temperature and flow conditions. Results from the two exchangers were then compared. The new design heat exchanger showed better thermal enhancement index for the whole range of fluid concentrations. Correlations for Nusselt number and Darcy friction factor were proposed for both heat exchangers.

AB - A unique shell and tube heat exchanger with interstitial twisted tapes was tested with propylene glycol/water solution. Propylene glycol concentration was varied between 0 and 40% by volume. Same size conventional shell and tube exchanger with single segmental baffles was also tested under similar temperature and flow conditions. Results from the two exchangers were then compared. The new design heat exchanger showed better thermal enhancement index for the whole range of fluid concentrations. Correlations for Nusselt number and Darcy friction factor were proposed for both heat exchangers.

KW - Segmental baffle

KW - Shell and tube

KW - Twisted tape

KW - Viscous flow

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VL - 134

SP - 248

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JO - Applied Thermal Engineering

JF - Applied Thermal Engineering

ER -

Performance characteristics of a novel shell and tube heat exchanger with shell side interstitial twisted tapes for viscous fluids application

Abstract

Keywords

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