Publication result detail

Manufacturing of solar absorber by unconventional methods

MRŇA, L.; FOREJT, M.; LIDMILA, Z.; PODANÝ, K.; KUBÍČEK, J.

Original Title

Manufacturing of solar absorber by unconventional methods

English Title

Manufacturing of solar absorber by unconventional methods

Type

Paper in proceedings (conference paper)

Original Abstract

Solar absorbers of flat type have the advantage of relatively simple production, but on the other hand, they have lower thermal efficiency and require perpendicular incidence of solar radiation on their surface. This contribution presents new type of solar absorbers where the above-mentioned disadvantages are reduced while keeping relative production simplicity. The solar absorber is characterized by the creation of the appropriate spatial structure in sheet metal by forming through a technology of drawing in flexible tools. This spatial structure not only increases the heat-transfer surface but also eliminates the need for perpendicular incidence of the incoming solar radiation. The component with this structure is fixed to the rear side of the absorber by laser welding. Inlet holes for the fluid are produced by Flow drill method.

English abstract

Solar absorbers of flat type have the advantage of relatively simple production, but on the other hand, they have lower thermal efficiency and require perpendicular incidence of solar radiation on their surface. This contribution presents new type of solar absorbers where the above-mentioned disadvantages are reduced while keeping relative production simplicity. The solar absorber is characterized by the creation of the appropriate spatial structure in sheet metal by forming through a technology of drawing in flexible tools. This spatial structure not only increases the heat-transfer surface but also eliminates the need for perpendicular incidence of the incoming solar radiation. The component with this structure is fixed to the rear side of the absorber by laser welding. Inlet holes for the fluid are produced by Flow drill method.

Keywords

solar absorber, laser welding, drawing in flexible tools, flow drill

Key words in English

solar absorber, laser welding, drawing in flexible tools, flow drill

Authors

MRŇA, L.; FOREJT, M.; LIDMILA, Z.; PODANÝ, K.; KUBÍČEK, J.

RIV year

2013

Released

23.05.2012

ISBN

978-80-87294-29-1

Book

Metal 2012

Edition

1

Pages from

1

Pages to

6

Pages count

6

BibTex

@inproceedings{BUT96511,
  author="Libor {Mrňa} and Milan {Forejt} and Zdeněk {Lidmila} and Kamil {Podaný} and Jaroslav {Kubíček}",
  title="Manufacturing of solar absorber by unconventional methods",
  booktitle="Metal 2012",
  year="2012",
  series="1",
  number="1",
  pages="1--6",
  isbn="978-80-87294-29-1"
}