Gas-to-gas heat exchanger design for high performance thermal energy storage

The mathematical modelling and optimization of a gas-to-gas heat exchanger with a non-constant cross sectional area is presented. The design of the cross sectional area of the heat exchanger analyzed is based on an hexagonal mesh, which would be highly impractical to fabricate in a conventional way...

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Main Authors: Cardenas, B., Garvey, Seamus D., Kantharaj, Bharath, Simpson, M.C.
Format: Article
Published: Elsevier 2017
Subjects:
Online Access:https://eprints.nottingham.ac.uk/44939/
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author Cardenas, B.
Garvey, Seamus D.
Kantharaj, Bharath
Simpson, M.C.
author_facet Cardenas, B.
Garvey, Seamus D.
Kantharaj, Bharath
Simpson, M.C.
author_sort Cardenas, B.
building Nottingham Research Data Repository
collection Online Access
description The mathematical modelling and optimization of a gas-to-gas heat exchanger with a non-constant cross sectional area is presented. The design of the cross sectional area of the heat exchanger analyzed is based on an hexagonal mesh, which would be highly impractical to fabricate in a conventional way but could be built relatively easily through modern manufacturing techniques. The geometric configuration proposed allows attaining a high exergy efficiency and a significant cost reduction, measured in terms of volume per unit of exergy transfer. The relationship that exists between the overall exergy efficiency of the heat exchanger and its cost is thoroughly explained throughout the study. The results obtained from the modelling demonstrate the premise that it is possible to realize designs for heat exchangers that are highly exergy-efficient and very cheap, owing to the small volume of material required, if the constrains imposed by the limitations of traditional manufacturing methods are set aside. Furthermore, the study reveals a very important fact: the volume of material in a heat exchanger increases in quadratic proportion to its characteristic dimension, which implies that scaling up the geometry has a strong impact on its cost-effectiveness.
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spelling nottingham-449392020-05-04T19:53:47Z https://eprints.nottingham.ac.uk/44939/ Gas-to-gas heat exchanger design for high performance thermal energy storage Cardenas, B. Garvey, Seamus D. Kantharaj, Bharath Simpson, M.C. The mathematical modelling and optimization of a gas-to-gas heat exchanger with a non-constant cross sectional area is presented. The design of the cross sectional area of the heat exchanger analyzed is based on an hexagonal mesh, which would be highly impractical to fabricate in a conventional way but could be built relatively easily through modern manufacturing techniques. The geometric configuration proposed allows attaining a high exergy efficiency and a significant cost reduction, measured in terms of volume per unit of exergy transfer. The relationship that exists between the overall exergy efficiency of the heat exchanger and its cost is thoroughly explained throughout the study. The results obtained from the modelling demonstrate the premise that it is possible to realize designs for heat exchangers that are highly exergy-efficient and very cheap, owing to the small volume of material required, if the constrains imposed by the limitations of traditional manufacturing methods are set aside. Furthermore, the study reveals a very important fact: the volume of material in a heat exchanger increases in quadratic proportion to its characteristic dimension, which implies that scaling up the geometry has a strong impact on its cost-effectiveness. Elsevier 2017-12 Article PeerReviewed Cardenas, B., Garvey, Seamus D., Kantharaj, Bharath and Simpson, M.C. (2017) Gas-to-gas heat exchanger design for high performance thermal energy storage. Journal of Energy Storage, 14 (2). pp. 311-321. ISSN 2352-152X Air to air heat exchanger; High exergy efficiency; Non-constant cross sectional area; Additive manufacturing; Cost optimization http://www.sciencedirect.com/science/article/pii/S2352152X17300956?via%3Dihub doi:10.1016/j.est.2017.03.004 doi:10.1016/j.est.2017.03.004
spellingShingle Air to air heat exchanger; High exergy efficiency; Non-constant cross sectional area; Additive manufacturing; Cost optimization
Cardenas, B.
Garvey, Seamus D.
Kantharaj, Bharath
Simpson, M.C.
Gas-to-gas heat exchanger design for high performance thermal energy storage
title Gas-to-gas heat exchanger design for high performance thermal energy storage
title_full Gas-to-gas heat exchanger design for high performance thermal energy storage
title_fullStr Gas-to-gas heat exchanger design for high performance thermal energy storage
title_full_unstemmed Gas-to-gas heat exchanger design for high performance thermal energy storage
title_short Gas-to-gas heat exchanger design for high performance thermal energy storage
title_sort gas-to-gas heat exchanger design for high performance thermal energy storage
topic Air to air heat exchanger; High exergy efficiency; Non-constant cross sectional area; Additive manufacturing; Cost optimization
url https://eprints.nottingham.ac.uk/44939/
https://eprints.nottingham.ac.uk/44939/
https://eprints.nottingham.ac.uk/44939/