Cold aisle, hot aisle and rack exhaust containment are all effective air management methods to separate the hot and cold air streams in data centres. However, both cold aisle and hot aisle containment require working in hot areas (the hot aisle). The rack exhaust system has the potential for higher densities (all aisles are cold); this is restricted by the exhaust duct volume. For hot aisle containment and rack exhaust containment the area available for.. Read More
The guide below is to provide some indication on how the settings at CRAC (computer room air conditioning) units can be modified to satisfy ASHRAE recommended range and save energy on cooling and humidification.
In 2014, Operational Intelligence and the Operations team of a global finance service firm achieved an exceptional result. Through energy assessments, data hall temperature measurements and operator education workshops we implemented air management improvements, optimised fan control and gradually increased air and chilled water temperature set points to achieve significant financial savings through reduced energy costs. On top of that we installed an indirect free cooling circuit. This resulted in a PUE reduction,.. Read More
It can be difficult and frustrating to receive organisational funding and project approval. By holistically analysing which initiatives deliver the maximum benefit, operators can prioritise improvements and produce a strong business case to approve changes to reduce energy and mitigate risk. Our team help curate the European code of conduct on data centre energy efficiency participant usage guide. For the full publication, please follow the link.
At Operational Intelligence we believe the data centre industry is starting to recognise that its focus must go beyond energy consumption. Single-issue metrics such as PUE only consider the operational phase, omitting impacts from other issues and during other stages a facilities lifetime. No single-metric has the capacity to capture fully the interlinked nature of the data centre system. Using single metrics is dangerous as improvement in one area can adversely affect a.. Read More
Reflecting on Experience There is always pressure at the end of a project to reduce commissioning time. However, the interdependency dimensions of any project are financial, time and quality. Each one of these dimensions affects the other dimensions. Compromise One If you shorten the programme time, then it will either cost more or the quality (of tests / commissioning) will be compromised. Compromise Two If you try to reduce the cost of it (cutting.. Read More