Closed system
The Chartered Institute of Procurement & Supply (CIPS) Glossary of procurement terms, defines a closed system as: ‘A system or process that, once started, does not allow new entrants. A framework agreement might have multiple buyers and multiple suppliers, but once set up no additional buyers or suppliers can be added to it.’
Water Treatment for Closed Heating and Cooling Systems (BG 50/2021), second edition, by Dr Pamela Simpson, published by BSRIA in 2021, states: ‘Closed systems are effectively sealed and the water inside the system is not exposed to the atmosphere. They contain a fixed volume of water that recirculates and tends to suffer only negligible water losses in normal operation.’
BG 87/2024, Useful Information Guide, written by Chin Hang “Kay” Lam and published by BSRIA in 2024, defines a closed system as: ‘A hydronic heating or cooling system which is effectively sealed. The water in the system is not exposed to the atmosphere and should suffer no, or only negligible, losses in normally operation.’
[edit] Related articles on Designing Buildings
Featured articles
Check out some of the best features and news from Designing Buildings as well as key stories from around the web.
Construction Management, 8 July
NEETs crisis drives interest in trades, but apprenticeships barriers remain.
Passive fire protection webinar
MEP services penetration seals.
Where its at podcast (and video) - The role of the Architectural Technologist as an Expert Witness.
More than 200 remarkable buildings added to SAVE’s Buildings at Risk register.
Government scraps pre-application consultation for Nationally Significant Infrastructure Projects.
Historic England and infrastructure
New projects offer opportunities for the historic environment and local communities.
Construction Management, 2 July
Construction deaths halve in two years.
Green Book changes to drive investment in all parts of UK.
Minimum energy efficiency standards (MEES)
CIAT briefing on response to consultations for privately rented non-domestic properties.
Connect, collaborate, shape the future
Registration now live for UK Construction Week Birmingham.
CIOB announces Saul Humphrey FCIOB as new President for 26/27 term.
A quick, simple, and zero-bills solution to prevent overheating.