NDLI: Time resolved and spectral analysis of solar absorber Cu-Al and Al-Al laser weld emission

Content Provider	IEEE Xplore Digital Library
Author	Siozos, P. Zervaki, A.D. Kamoutsi, H. Haidemenopoulos, G.N. Anglos, D. Magana, T. Hontzopoulos, E.
Copyright Year	2013
Description	Author affiliation: Dept. of Mech. Eng., Univ. of Thessaly, Volos, Greece (Zervaki, A.D.; Kamoutsi, H.; Haidemenopoulos, G.N.) \|\| Inst. of Electron. Struct. & Laser, Found. for Res. & Technol. - Hellas, Heraklion, Greece (Siozos, P.; Anglos, D.) \|\| VIOPA Kerateas, PRIME Laser Technol. SA, Keratea Attikis, Greece (Magana, T.; Hontzopoulos, E.)
Abstract	Solar water heating systems involve several innovations and a number of mature renewable energy technologies that enable efficient energy conversion. The thermal efficiency of solar heat collectors strongly depends on the metallurgical characteristics of the weld between the collector panel and the heat transfer tube. Typically, the welding quality is evaluated by empirical criteria, based, for instance, on measuring the mechanical strength of the spot welds. Little or no use has been made of methods that monitor the welding process and correlate welding conditions with mechanical strength and thermal efficiency. The main objective of the present work is to monitor temporally and spectrally investigate the optical emission generated during laser welding in the fabrication of solar heat collectors and correlate its optical characteristics with mechanical and metallographic data.
Sponsorship	Eur. Phys. Soc.
Starting Page	1
Ending Page	1
File Size	257162
Page Count	1
File Format	PDF
e-ISBN	9781479905942
DOI	10.1109/CLEOE-IQEC.2013.6801579
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-05-12
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical fibers Welding Electron tubes Laser beams Solar heating Fiber lasers
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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