He has pioneered a new, transformative way of delivering critical infrastructure that employs a systematic approach, automation, and manufacturing in place of traditional bespoke construction..
PUE is dependent upon whether the heat rejection plant operates using adiabatic cooling..However, for most data centres, peak summer temperatures exceed the required supply temperature.
This necessitates mechanical cooling to maintain design conditions.The larger the temperature difference, the harder the mechanical cooling system must work.Compared to free cooling, mechanical cooling requires substantial electrical input, which ultimately contributes to more heat being rejected.
This can further increase water consumption if the heat rejection plant utilises adiabatic cooling.. Reducing the mechanical cooling demand.The obvious, although usually impractical, way would be to locate the data centre in a colder climate where the average temperature is lower, allowing for free cooling to operate for longer and reducing the mechanical cooling hours operated.
This won't be practical for most data centre operators due to cost, land, power and connectivity availability.. A more practical way to reduce the mechanical cooling demand is by increasing the air/water temperature supplied to the data hall.
For example, migrating to ASHRAE A1 Allowable temperature range from ASHRAE A1 Recommended during peak external ambient conditions could reduce OPEX considerably.. ASHRAE Environmental Classes (Allowable) for Data Centres.The PETP team viewed emerging potential design solutions through two key lenses: effectiveness and efficiency.
‘Effectiveness’ is the ability of a design to deliver the required rehabilitative outcome, while ‘efficiency’ is the total whole life cost required to achieve this outcome..This collaborative assessment process included data visualisations and the transparent, objective evaluation of different potential solutions.
The team was able to balance the different and often competing interests of stakeholders using a range of techniques, including use of Virtual Reality (VR) to simulate how the new building would work and help them understand and contribute to the design..Gathering feedback from groups including prison staff and those delivering services in prisons gained buy-in and approval from all levels – from senior policy makers to operational staff – and meant we were able to demonstrate best overall value for money.. Translating evidence into design.