ACR-News
Know what you want? Try our 'Supplier Directory' 

ASHRAE standard is too prescriptive says Google

GOOGLE and other data centre owners have objected to a proposed ASHRAE efficiency standard.
ASHRAE Standard 90.1 defines the energy efficiency for most types of buildings and has recently been extended to include data centres.

The data companies, which include Google, Microsoft, Nokia and Amazon, object to proposed amendments in the standard requiring air or water economisers as part of the standard data centre design

In an open letter posted on the internet by Urs Hoelzle, senior vice president, operations and Google fellow and five co-signees, the group maintains that efficiency standards should be performance-based and accuses the ASHRAE standard of being 'too prescriptive'.

'Instead of setting a required level of efficiency for the cooling system as a whole, the standard dictates which types of cooling methods must be used,' the letters says.

'For example, the standard requires data centres to use economizers -- systems that use ambient air for cooling. In many cases, economizers are a great way to cool a data centre, but simply requiring their use doesn't guarantee an efficient system, and they may not be the best choice. Future cooling methods may achieve the same or better results without the use of economizers altogether. An efficiency standard should not prohibit such innovation.'

Exceptions

In response, ASHRAE has maintained that there are eight exceptions to the mandatory usage of economizers. 'The addendum does not change the portion of the standard that already allows, through the Energy Cost Budget method, for data centres to be designed without economizers if other energy saving methodologies, including power usage effectiveness is employed,' it added.

The stance of the data centre owners was supported by UK cooling equipment manufacturer Airedale. Director of engineering Bill Coates said 'I agree with this stance as many applications are location specific and would support open innovation solutions always.'

The IOR Annual Conference – a conference on-demand

Delegates to the IOR Annual Conference taking place from 21 to 22 April will get the chance to access the event live and all sessions and recordings for up six months afterwards providing fantastic value and allowing anyone registering for the event ...

  01-Apr-2021

HVACR Live: Visit stand B40 to engage and win big with Clivet products

This will be the first time Clivet has exhibited at HVACRLive ’23 at ExCel and we can’t wait! We are planning to launch at this amazing event with a bang and for the first time in the UK, and show you the extensive product range Clivet has to offer....

  25-Mar-2023

SANHUA launches Braze Plate Heat Exchangers – BPHEs

With carbon neutralization the goal, it’s the top priority of most companies to increase the use of renewable energy and technologies to save energy and reduce emissions. The most direct and effective way to save energy is to improve the efficiency of our systems. Compared with other heat exchangers of the same purpose, properly designed BPHEs can provide higher heat transfer efficiency and lower pressure drops.
  01-Mar-2023
ACR News is the number one magazine in the air conditioning and refrigeration industry. Don’t miss out, subscribe today!
Subcribe to ACR News

Diary

HVACR Live
ACR News Awards
BESA National Conference