INDUSTRY NEWS ISH DIGITAL 2021 WELCOMED 82,000 PARTICIPANTS T
he first digital edition of HVAC and water trade fair, ISH, saw 373 companies taking part and welcomed 82,000 participants altogether
including the post-fair phase. Focal points included the European Green Deal and the
significance of ventilation and air conditioning systems, especially against the background of the pandemic. Some 290 hours of content were broadcast during the digital fair from 22 to 26 March 2021. During this time, 277 live and on-demand events were held and watched by around 62,000 viewers. It was possible to make personal appointments with
exhibitors’ representatives until 1 April 2021 so that, in the end, a total of around 6,600 meetings were held. The platform stayed open for all participants until 30
April 2021, thus giving them the chance to see recorded content and make contact with other participants. The result was that approximately 82,000 participants
were active when the platform closed, which means around 13,000 participants were added during the post-fair phase. Some 33,400 contacts were distinguished by interest
on both sides. Wolfgang Marzin, president and chief executive of Messe Frankfurt, said: “We wanted to launch a high-quality networking platform and present themes of importance to the sector in a concentrated way. I think we succeeded in this. By holding ISH digital, we have been able to gather a lot of experience for hybrid events in the future. The next ISH will be held at Frankfurt Fair and Exhibition
Centre from 13 to 17 March 2023. Exhibitor registration opens in November 2021.
MECHANICAL VENTILATION CUTS COVID RISK B
uilding ventilation systems reduce the spread of airborne diseases by half
compared to natural ventilation for schools, offices and hospitality venues, research shows. Ventilation specialists S&P
UK has released the findings of detailed research carried out by its European R&D centre aimed at shedding light on whether mechanical or natural ventilation should be used to improve air quality and curb the risk of contracting airborne diseases such as COVID-19 in indoor environments. With lockdown easing and the UK vaccination rollout on
track, more businesses, office managers, headteachers and other building owners are seeking clarity from the government, the scientific community and industry bodies on how best to minimise the spread of COVID-19 in an enclosed space. The virus is spread via infectious aerosols which can stay airborne for long periods, particularly in poorly ventilated areas. The study by S&P UK found mechanical ventilation systems
reduce by half the risk of COVID aerosol transmission compared to natural ventilation, such as opening windows and doors which has the added disadvantage of letting in noise, pollution and cold air in the winter. The detailed scientific modelling and analysis by S&P
researchers considered three scenarios: schools, offices, and bars/restaurants. After four days in a classroom of 24 students wearing masks
and an infected teacher, the accumulated probability of infection is 21% with natural ventilation – or five pupils infected. With mechanical ventilation, it is 9% – or two pupils infected. With no ventilation, seven contract COVID-19. If a student is positive rather than the teacher, the numbers are halved. In the winter, opening windows for 10 minutes every hour
results in a 4.8% infection rate, meaning four cases after day four – twice as high as mechanical ventilation.
Meanwhile, in a restaurant
with 35 unmasked customers but a masked infected waiter, with natural ventilation, two customers are infected in the first two hours, and two more are infected over the second two-hour period, giving a total of four cases. With mechanical
ventilation, it is halved to one infected customer in each two- hour period, or a total of two. With an infected customer instead of the waiter, with open
windows, three customers contract COVID-19 by the end of night. With mechanical ventilation, it is one. In an open plan office with 40 workers where one is
infected, with everyone wearing masks, there are four infected employees after four days with natural ventilation, and two with mechanical. With no masks, it rises to 13 with open windows and eight with mechanical. There are long-held concerns that most offices only
recirculate existing air with air conditioning units, rather than pumping in fresh air using mechanical ventilation systems. The authors, S&P Global CFD (computational fluid dynamics)
engineers Albert Carrasquer and Jordi Fabregat, concluded: “(Mechanical) ventilation can reduce more than twofold the infection risk when compared to open windows. If a lower infection risk is desired, installation must deliver higher ventilation rates than those defined by (British) standards.” The Scientific Advisory Group for Emergencies (SAGE)
says building ventilation should be “integral to the COVD risk mitigation strategy for all multi-occupant public buildings and workplaces”. Alex Finch, managing director of S&P UK, said: “Our
research shows that investing in mechanical ventilation systems must be considered by anyone who helps to manage any indoor space, whether that’s a headteacher, an office manager or a restaurant owner.
Inbrief
Research from Samsung has revealed that retailers are on the lookout for products that can add to the aesthetic appeal of stores and go a step beyond in making customers feel more comfortable while making purchasing decisions.
www.samsung.com
Viessmann has formed a strategic partnership with Priva Group to explore opportunities for global synergies around combined tech- driven solutions that predictively adapt climate and energy to users’ needs.
www.viessmann.co.uk
The Manufacturers’ of Equipment for Heat Networks Association (MEHNA) has launched a new digital face with it new website which will act as the central platform for communicating and achieving key aims.
www.mehna.org.uk
Taking immediate action to refurbish ageing school heating systems is vital to put ‘hard-to- tackle’ educational buildings on the road to the future of heating, according to a new report by Baxi Heating.
www.baxiheating.co.uk
This year looks set to be a record year for gas boiler sales, with year-to-date sales up 41 per cent from 2020, with a 12-month average sales figure increasing by 14 per cent, according to the Heating and Hotwater Industry Council (HHIC).
www.hhic.org.uk
LCL Awards has launched a range of new Level 2 plumbing qualifications, offering three different routes for candidates, depending on access to workplace learning and prior experience.
lclawards.co.uk
Easy Air Conditioning is the latest UK distributor to team-up with Haier HVAC Solutions and will sell the full range of Haier air conditioning products.
www.haierhvac.eu
Johnson Controls has been named to the inaugural Financial Times Climate Leaders in Europe list.
www.johnsoncontrols.com
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