Electrostatic precipitators can stop PM2.5 dust particles from entering buildings, but could create dangerous levels of ozone. Catalysts in AHUs may be the answer, says Staffordshire University’s Derek Wardle
Tag: Cooling
Reduce, reuse, recycle – meeting the F-Gas targets
Managing the supply of HFC refrigerants and reducing pressure on the newly lowered quotas introduced by the F-Gas regulations will be a critical issue for the industry. Martin Passingham at Daikin UK discusses the current legislation and industry issues, as well as the future of refrigerant
How the F-gas regulations are disrupting the cooling industry
The soaring price of refrigerant gas is leading to an outbreak of unsafe and illegal practices, writes Ewen Rose
Practicing perfect commissioning for air conditioning systems
Air conditioning offers benefits in terms of cooling and heating, but only if systems are commissioned correctly before they are put into use. Fujitsu’s Martyn Ives explains
Using CFD to predict flows in chilled beams
Computational Fluid Dynamics can be used to gauge flow predictions for chilled beams, according to Abdullah Karimi’s paper presented at the ASHRAE 2018 Winter Conference. Tim Dwyer reports
How to achieve nearly zero carbon emissions with evaporative cooling
In many climates, comfort cooling with zero carbon emissions can be achieved through a combination of evaporative cooling, renewables and a more relaxed dress code in the summer, says John Hammond
Thermal labyrinth offers comfort at Canadian hospital
A new emergency department at a Canadian hospital enabled designers to use a basement void to install a thermal labyrinth and find their way to healthy energy savings. Tim Dwyer reports
National Gallery of Ireland’s hidden services
Refurbishment of the National Gallery of Ireland required tight environmental control in the galleries, but there was minimal space to make this happen, writes Chris Croly
District cooling at King’s Cross
A sliver of land between a rail line and offices was the only site available for a cooling centre at London’s King’s Cross. Metropolitan Infrastructure’s John Marsh, tells how it overcame space constraints to supply up to 12MW of cooling
The challenge of cooling football stadiums in Qatar
A study of air conditioning in Qatar stadiums has explored the best way to achieve thermal comfort for spectators and players. Cairo University’s Essam E Khalil and Mohamed E Ashmawy share their findings