Efficient lifting: improving chiller performance

Reducing the ‘lift’ in a refrigeration cycle can cut a chiller’s operational energy use significantly, according to Trent Hunt, in a presentation at last month’s ASHRAE Conference in Atlanta. Tim Dwyer summarises the paper

Sponsored roundtable: cooling for life

Decarbonising cooling involves passive design measures, efficient cooling and a robust approach to refrigeration leakage, according to members of a CIBSE Journal roundtable on whole life cooling, sponsored by Daikin

Turning to CO2 refrigerant in large-scale retrofits

Using CO2 as a refrigerant in heat pumps is ideal for retrofits requiring higher-temperature heat. Daniel Clark, of Isentra, reports on the refurbishment of Wolfson College, which is using heat pumps for district heating and DHW

Highlights from the ASHRAE Winter Conference

The ASHRAE Winter Conference in Orlando featured more than 300 presentations to nearly 2,800 delegates. Tim Dwyer gives a taste of the engineering zeitgeist, including seminars on growing cannabis and the latest BACnet software to secure controls

Sponsored roundtable: The benefits of REFCOM Elite

Poorly installed cooling systems can have disastrous consequences for energy efficiency and CO2 emissions. Amanda Birch hears how REFCOM Elite can eliminate the risks, in our latest expert roundtable