Lighting the way for low energy illumination

Despite the prevalence of LEDs, lighting still makes up a substantial proportion of energy use in buildings. Guests at the latest CIBSE Journal roundtable discussed how operational and embodied energy use could be further reduced by smarter design and a circular approach to components

Calculating indoor infection risk

To understand how ventilation reduces Covid transmission it is important to look at the level of risk as the number of building occupants increases, says Chris Iddon, who introduces a methodology that addresses the difference in personal and population risk

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