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Additively Manufactured Heat Exchangers- Development and Testing

Wadsö, Isak LU and Holmqvist, Simon (2020) MMKM10 20201
Product Development
Abstract
Heat exchangers are important devices in many applications. Extensive work is done
in optimization, but the overall designs are often one of the conventional varieties
such as plate or shell-and-tube heat exchanger. These are constrained by their
manufacturing, for example the use of construction material such as sheet metal and
cylindrical pipes. The current progress in additive manufacturing has the potential
to disrupt convention, as it allows complex shapes better suited to the nature of fluid
flow.
The intersection between heat exchangers and additive manufacturing has been
explored in this thesis. The structures known as Triply Periodic Minimal Surfaces
were found to have special potential because of their suitability for... (More)
Heat exchangers are important devices in many applications. Extensive work is done
in optimization, but the overall designs are often one of the conventional varieties
such as plate or shell-and-tube heat exchanger. These are constrained by their
manufacturing, for example the use of construction material such as sheet metal and
cylindrical pipes. The current progress in additive manufacturing has the potential
to disrupt convention, as it allows complex shapes better suited to the nature of fluid
flow.
The intersection between heat exchangers and additive manufacturing has been
explored in this thesis. The structures known as Triply Periodic Minimal Surfaces
were found to have special potential because of their suitability for both heat transfer
and additive manufacturing. Specifically, the “Schwarz D” and “Schoen G”
varieties were used.
A method for enclosing these structures according to the internal channels was
developed and a manifold was designed to allow full counter current flow. Two
complete heat exchanger variations were produced in the material AlSi10Mg,
evaluated experimentally and simulated using computational fluid dynamics.
This thesis suggests equal usefulness of the two proposed designs for heat
exchanging applications, as well as demonstrates their manufacturability. The inner
structure was found to provide good mixing and an even flow distribution, while the
manifold design requires further development to lower pressure loss. (Less)
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author
Wadsö, Isak LU and Holmqvist, Simon
supervisor
organization
course
MMKM10 20201
year
type
H2 - Master's Degree (Two Years)
subject
keywords
Additive manufacturing, Heat exchanger, Triply periodic minimal surface, AlSi10Mg
language
English
id
9019472
date added to LUP
2020-07-03 12:50:09
date last changed
2020-07-03 12:50:09
@misc{9019472,
  abstract     = {Heat exchangers are important devices in many applications. Extensive work is done
in optimization, but the overall designs are often one of the conventional varieties
such as plate or shell-and-tube heat exchanger. These are constrained by their
manufacturing, for example the use of construction material such as sheet metal and
cylindrical pipes. The current progress in additive manufacturing has the potential
to disrupt convention, as it allows complex shapes better suited to the nature of fluid
flow.
The intersection between heat exchangers and additive manufacturing has been
explored in this thesis. The structures known as Triply Periodic Minimal Surfaces
were found to have special potential because of their suitability for both heat transfer
and additive manufacturing. Specifically, the “Schwarz D” and “Schoen G”
varieties were used.
A method for enclosing these structures according to the internal channels was
developed and a manifold was designed to allow full counter current flow. Two
complete heat exchanger variations were produced in the material AlSi10Mg,
evaluated experimentally and simulated using computational fluid dynamics.
This thesis suggests equal usefulness of the two proposed designs for heat
exchanging applications, as well as demonstrates their manufacturability. The inner
structure was found to provide good mixing and an even flow distribution, while the
manifold design requires further development to lower pressure loss.},
  author       = {Wadsö, Isak and Holmqvist, Simon},
  keyword      = {Additive manufacturing,Heat exchanger,Triply periodic minimal surface,AlSi10Mg},
  language     = {eng},
  note         = {Student Paper},
  title        = {Additively Manufactured Heat Exchangers- Development and Testing},
  year         = {2020},
}