Corrosion in heating and cooling water circuits - A field study

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Corrosion and clogging are hidden hazards in various engineered systems dealing with water as storage or heat transfer medium. The related efficiency and serviceability losses may entail expensive remedial measures and costs up to the range of millions (e). Especially modern low-exergy installations are affected. They may suffer from oxygen ingress through capillary tubes, higher microbial activity due to moderate temperatures and increased vulnerability of complex components to particulate corrosion products. This field study presents in-situ investigations of chemical and microbial water quality and corrosion in pipes of different non-residential buildings. It identifies processes and recommends measures to prevent corrosion. Causes of corrosion and clogging were found to be i.a. related to operational errors.

Original languageEnglish
JournalEnergy Procedia
Pages (from-to)359-366
Number of pages8
Publication statusPublished - 01.11.2018
Event12th International Renewable Energy Storage Conference, IRES 2018 - Dusseldorf, Germany
Duration: 13.03.201815.03.2018
Conference number: 12,12th%20International%20Renewable%20Energy%20Storage%20Conference%20IRES%202018,2018%20at%20Messe%20D%C3%BCsseldorf%2C%20Germany.

Bibliographical note

This research has been funded by the German Federal Ministry of Economic Affairs and Energy in the project EQM-Hydraulik (project no. 03ET1270B) which is gratefully acknowledged. Additionally, we thank our coworkers in the field Dr. Tanja Eggerichs and Tobias Otte for sampling and measurements as well as for their valuable input and we thank our partners: Blue Biolabs, Synavision, Union Investment, Wilo, IMI Hydronic Engineering.

    Research areas

  • Asset protection, Corrosion in heating and cooling systems, Corrosion monitoring, Corrosion prevention, Microbially influenced corrosion (MIC), Quality assurance, Technical building services
  • Energy research
  • Chemistry