Understanding Hepa filters

An appropriately specified Hepa filter can be used in mechanically ventilated spaces and recirculating systems to practically remove small airborne particulates. CIBSE Journal technical editor Tim Dwyer looks at what must be considered when integrating them into HVAC systems

COVID

Safe return – making school air conditioning Covid-secure

As children across the UK return to the classroom, schools have had to devise Covid-secure services strategies to safeguard pupils and staff. Chris Baker details the plan for safe air conditioning at Parrs Wood High School

Air conditioning

Taking the heat out of the ICT classroom

Increased use of computing in schools is causing a rise in cooling loads that can results in air conditioning being in conflict with heating. Science teacher Chris Baker looks at four methods of reducing cooling requirements at Parrs Wood High School

Air conditioning

CIBSE roundtable

Delivering smarter homes using offsite building methods

CASE STUDIES

Groundbreaking services design in the best buildings of today

Agar Grove: measuring the performance of a Passivhaus winner

The success of Agar Grove at the CIBSE Building Performance Awards was in part due to the focus on controlling overheating and minimising plant heat losses. Andy Pearson finds out how the Passivhaus approach helped tackle fuel poverty

Heating

Streetwise: How a pair of terrace homes reduce energy use using smart technology

Passivhaus standards of energy efficiency were delivered in two Cardiff homes by installing a sensor network that monitored room occupancy, temperature and air quality. Atamate’s David Miles, Dan Cash and Kat Kelly explain

energy efficiency