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Water quality in HVAC hydronic systems: an international review

Previous research has highlighted that inadequate water quality and corrosion can increase system energy consumption significantly and lead to immediate system damage and premature plant failure. Corrosion is a complex and unavoidable phenomenon which can occur due to a number of chemical, biological and physical reasons. To mitigate and contain its impact, a number of chemical and physical approaches have been developed worldwide to maintain adequate water quality. These approaches could include the use of chemical inhibitions to passivate the system or the implementation of mechanical filtration approaches to maintain the cleanliness of the water in hydronic systems and the removal of gases from the system. This paper provides an overall review and comparison of the various international standards & approaches and the latest research conducted in regard to water quality and corrosion in hydronic systems. The paper aims to highlight the current state of knowledge in the field and the various approaches adopted in practice. This research also aims to highlight the gaps in knowledge and literature which can be used to prompt future research and exploration within the area.

History

School

  • Architecture, Building and Civil Engineering

Published in

ASHRAE Transactions

Volume

130

Issue

1

Publisher

ASHRAE

Version

  • AM (Accepted Manuscript)

Rights holder

© ASHRAE

Publisher statement

© 2024, ASHRAE (www.ashrae.org). Published in ASHRAE Transactions. Additional reproduction, distribution, or transmission in either print or digital form is not permitted without ASHRAE's prior written permission. All other outside requests for use must be directed to ASHRAE, https://www.ashrae.org/permissions.

Acceptance date

2023-12-25

ISSN

0001-2505

Language

  • en

Depositor

Amr Suliman. Deposit date: 20 February 2024

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