Doing the hard yards: Tackling the hard to abate sectors for net zero | Martin Wood and Adrian La Porta

How could that be acceptable?”.

Due to the wet bulb temperature being often many degrees below coincident dry bulb temperature, in high dry bulb conditions this can mitigate the requirement for mechanical cooling.. Data Centre with DEC unit.Chilled water system flexibility.

The most common systems installed in data centres use chilled water as the medium between the internal and external units.Chilled water systems offer significant flexibility:.Data hall configuration:.

Chilled water systems can accommodate various data hall layouts and are suitable for future integration of liquid cooling technologies.. Heat rejection plant location:.The heat rejection plant can be positioned on the roof or even remotely from the data hall itself, providing valuable design freedom..

External heat rejection options:.

Chilled water systems are compatible with a range of external heat rejection options, including dry cooling, dry cooling with partial evaporative assist, and full adiabatic cooling.In many cases, they refer to the possibility of achieving net zero carbon in operation only, which means that they do not account for the embodied carbon of the building over its lifecycle.

A net zero carbon building is one that achieves both zero operational (regulated and unregulated) and zero embodied emissions.. Buildings should only be considered net zero carbon if the amount of carbon emissions associated with a building’s products/materials, construction stages, use (including operation) and deconstruction, is zero or negative.This can be achieved via measures to reduce the use or the carbon of individual materials, the implementation of energy efficiency measures, the use of on-site renewables and finally a combination of carbon offset schemes and green Power Purchase Agreements (PPA)..

It should be noted, that for most new developments nowadays it is not feasible to become net zero within the possibilities of the design (energy and material efficiency measures), so the use of carbon offset schemes and PPA is essential.. Why should we focus on sustainable construction and net zero carbon?.The UK has established ambitious targets to reduce carbon by 2050.