Covid-19 may have moved the 10th CIBSE Technical Symposium from auditorium to desktop, but the expertise and knowledge shared by more than 70 speakers, made it an enriching experience for those who tuned in. Alex Smith, Liza Young and Phil Lattimore report
Author: Alex Smith
Slowing the flow: estimating water demand in non-domestic buildings
Overestimating water flow rates means plant is oversized and water is wasted. Heriot-Watt University’s Sarwar Mohammed considers a new method for calculating flow rates accurately in
non-domestic building
Industry urged to have its say on changes to Wiring Regulations
Draft for public comment released for proposed Amendment 2 to BS 7671:2018
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
Clear guidance: TR40 Best practice for exhaust ventilation
The risk of death and illness because of exposure to hazardous substances in the workplace can be cut by following the best practice guidance in ILEVE and BESA’s new TR40 publication. Alex Smith summarises the guidance aimed at the safe design and installation of local exhaust ventilation
Measuring overheating
To minimise overheating in homes it is important to produce accurate models to understand where risks might lie. To test the accuracy of modellers’ predictions, researchers – led by Ben Roberts – compared four models with real-life temperatures in two homes
Calculating Covid-19 risk according to activity and indoor space
A group of UK researchers has attempted to quantify the transmission risk of airborne Covid-19 infection according to activity and type of indoor space. Chris Iddon describes the methodology and how the risk of infection falls as ventilation rates are increased
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
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
Homes for the future?
The UK has had a housing shortage for some time. Hywel Davies looks at proposals to increase provision and possible unintended consequences