Dehumidification drying of red oak. 2. Cause of cooling coils corrosion in heat pumps

Dehumidification kiln-drying of red oak lumber resulted in the corrosion of cooling coils in a laboratory kiln. Cooling coils in industrial kilns protected by anti-corrosion finishes did not exhibit any signs of corrosion. Laboratory kiln-drying condensates were characterized by a bluish tinge and p...

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Published in:Forest products journal 1999, Vol.49 (9), p.33-36
Main Authors: Solliday, D, Dawson-Andoh, B.E, Renton, J.J, Armstrong, J.P, Jagodzinski, P, Coyle, C.M
Format: Article
Language:English
Subjects:
acetates (salts)
chemical analysis
components
condensates
cooling
copper
copper acetate monohydrate
crystals
dehumidification
fallow
heat pumps
kiln drying
kilns
lumber
Quercus
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container_end_page 36
container_issue 9
container_start_page 33
container_title Forest products journal
container_volume 49
creator Solliday, D
Dawson-Andoh, B.E
Renton, J.J
Armstrong, J.P
Jagodzinski, P
Coyle, C.M
description Dehumidification kiln-drying of red oak lumber resulted in the corrosion of cooling coils in a laboratory kiln. Cooling coils in industrial kilns protected by anti-corrosion finishes did not exhibit any signs of corrosion. Laboratory kiln-drying condensates were characterized by a bluish tinge and produced blue crystals upon evaporation. X-ray diffraction analysis of the kiln condensate blue crystals identified them as copper acetate monohydrate. This identification was further supported by Fourier transform infrared and UV-visible spectra of condensate crystals.
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source Business Source Ultimate; ABI/INFORM Global
subjects acetates (salts)
chemical analysis
components
condensates
cooling
copper
copper acetate monohydrate
crystals
dehumidification
fallow
heat pumps
kiln drying
kilns
lumber
Quercus
title Dehumidification drying of red oak. 2. Cause of cooling coils corrosion in heat pumps
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