LAPSE:2020.0751
Published Article
LAPSE:2020.0751
Infrared Spectroscopic Analysis of the Inorganic Deposits from Water in Domestic and Technical Heat Exchangers
Johannes Kiefer, Alexander Stärk, Agnita Lynda Kiefer, Heike Glade
June 23, 2020
The deposition of insoluble inorganic substances on heat exchanger surfaces has a strong negative influence on the heat transfer and thus on the performance of the apparatus and the process. The analysis of the deposits is a crucial step towards the development of suitable technologies for scaling mitigation and prevention. Such analysis, however, is challenging and often requires advanced instrumentation and sample preparation. To overcome this problem, we present a straightforward analytical approach based on Fourier-transform infrared (FTIR) spectroscopy. We demonstrate that FTIR spectroscopy is a powerful tool for the chemical analysis of inorganic deposits. For example, it can identify the common anions in scales such as sulfates and carbonates. It can even distinguish between salts with the same anion but different cations such as calcium and sodium. Test measurements are performed on the deposits from a domestic water cooker and from the evaporator of a seawater desalination pilot plant.
Keywords
boiler, carbonate, chemical analysis, debris, Fourier-transform infrared spectroscopy, heat exchanger, scale, sulfate
Suggested Citation
Kiefer J, Stärk A, Kiefer AL, Glade H. Infrared Spectroscopic Analysis of the Inorganic Deposits from Water in Domestic and Technical Heat Exchangers. (2020). LAPSE:2020.0751
Author Affiliations
Kiefer J: Technische Thermodynamik, Universität Bremen, Badgasteiner Str. 1, 28359 Bremen, Germany; School of Engineering, University of Aberdeen, Aberdeen AB24 3UE, UK; Erlangen Graduate School in Advanced Optical Technologies, Friedrich-Alexander-Universität Er [ORCID]
Stärk A: Technische Thermodynamik, Universität Bremen, Badgasteiner Str. 1, 28359 Bremen, Germany
Kiefer AL: Technische Thermodynamik, Universität Bremen, Badgasteiner Str. 1, 28359 Bremen, Germany
Glade H: Technische Thermodynamik, Universität Bremen, Badgasteiner Str. 1, 28359 Bremen, Germany
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Journal Name
Energies
Volume
11
Issue
4
Article Number
E798
Year
2018
Publication Date
2018-03-30
Published Version
ISSN
1996-1073
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Original Submission
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PII: en11040798, Publication Type: Journal Article
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LAPSE:2020.0751
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doi:10.3390/en11040798
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Jun 23, 2020
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CC BY 4.0
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Jun 23, 2020
 
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Original Submitter
Calvin Tsay
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