Heat transfer and entropy generation in a parabolic trough receiver with wall-detached twisted tape inserts

Aggrey Mwesigye; Tunde Bello-Ochende; Josua P. Meyer

doi:10.1016/j.ijthermalsci.2015.08.015

Heat transfer and entropy generation in a parabolic trough receiver with wall-detached twisted tape inserts

Aggrey Mwesigye, Tunde Bello-Ochende, Josua P. Meyer

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

101 Scopus citations

Abstract

Study on the use twisted tape inserts in a parabolic trough receiver is presented.Use of twisted tape inserts significantly improves receiver thermal performance.Receiver thermal efficiency increases up to 10% with twisted tape inserts.At larger Reynolds numbers use of inserts degrades receiver thermodynamic performance.Entropy generation rates reduce up to 58% with the use twisted tape inserts.

Original language	English (US)
Pages (from-to)	238-257
Number of pages	20
Journal	International Journal of Thermal Sciences
Volume	99
DOIs	https://doi.org/10.1016/j.ijthermalsci.2015.08.015
State	Published - Jan 1 2016
Externally published	Yes

Bibliographical note

Funding Information:
The support received from Tshwane University of Technology , University of Cape Town and University of Pretoria is appreciated. The funding received from NRF , TESP , and Stellenbosch University/University of Pretoria , SANERI/SANEDI , CSIR , EEDSM Hub and NAC is duly acknowledged and appreciated.

Keywords

Entropy generation
Fluid friction
Heat transfer performance
Parabolic trough receiver
Twist ratio
Width ratio

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10.1016/j.ijthermalsci.2015.08.015

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Cite this

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title = "Heat transfer and entropy generation in a parabolic trough receiver with wall-detached twisted tape inserts",

abstract = "Study on the use twisted tape inserts in a parabolic trough receiver is presented.Use of twisted tape inserts significantly improves receiver thermal performance.Receiver thermal efficiency increases up to 10% with twisted tape inserts.At larger Reynolds numbers use of inserts degrades receiver thermodynamic performance.Entropy generation rates reduce up to 58% with the use twisted tape inserts.",

keywords = "Entropy generation, Fluid friction, Heat transfer performance, Parabolic trough receiver, Twist ratio, Width ratio",

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note = "Funding Information: The support received from Tshwane University of Technology , University of Cape Town and University of Pretoria is appreciated. The funding received from NRF , TESP , and Stellenbosch University/University of Pretoria , SANERI/SANEDI , CSIR , EEDSM Hub and NAC is duly acknowledged and appreciated.",

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AU - Bello-Ochende, Tunde

AU - Meyer, Josua P.

N1 - Funding Information: The support received from Tshwane University of Technology , University of Cape Town and University of Pretoria is appreciated. The funding received from NRF , TESP , and Stellenbosch University/University of Pretoria , SANERI/SANEDI , CSIR , EEDSM Hub and NAC is duly acknowledged and appreciated.

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N2 - Study on the use twisted tape inserts in a parabolic trough receiver is presented.Use of twisted tape inserts significantly improves receiver thermal performance.Receiver thermal efficiency increases up to 10% with twisted tape inserts.At larger Reynolds numbers use of inserts degrades receiver thermodynamic performance.Entropy generation rates reduce up to 58% with the use twisted tape inserts.

AB - Study on the use twisted tape inserts in a parabolic trough receiver is presented.Use of twisted tape inserts significantly improves receiver thermal performance.Receiver thermal efficiency increases up to 10% with twisted tape inserts.At larger Reynolds numbers use of inserts degrades receiver thermodynamic performance.Entropy generation rates reduce up to 58% with the use twisted tape inserts.

KW - Entropy generation

KW - Fluid friction

KW - Heat transfer performance

KW - Parabolic trough receiver

KW - Twist ratio

KW - Width ratio

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