Page 16 - Climate Control News June 2021

Boilers & Heating
Standard updates
LEFT: Safety is paramount when working with hazardous equipment such as boilers.
Standards Australia head of standards de- velopment, Roland Terry-Lloyd, said the up- date also sets out new requirements to re- duce the emission of greenhouse gases from boilers, as well as addressing the significant technology upgrades that have occurred in the industry.
“Supporting safer work environments and safety for the public is paramount particu- larly when dealing with hazardous equip- ment such as boilers that can pose serious risks,” he said.
“This updated standard puts safety at the forefront with clear, concise testing methods and safety requirements.
“For the first time the inclusion of require- ments aimed at reducing greenhouse gas emis- sions from boilers, as well as methodologies that address the vast array of new technology now deployed in the sector, has resulted in an inter- nationally competitive standard.”
James Forbes, chair and drafting leader for the new standard, said the revision was a huge task for the committee with over 1,000 updates and modifications made during the drafting process.
He said the end result is a much-improved document to guide the industry.
World-first microchannel range
DANFOSS HAS ANNOUNCED a world-first range of microchannel heat exchangers for low- density, alternative refrigerants.
Danfoss said the new technology solves a key design challenge for OEMs transitioning to lower GWP refrigerants such as R1234ze and R515B, especially in large air-cooled chillers using screw and centrifugal compression.
The low density of these refrigerants makes sys- tem performance highly sensitive to pressure drops. Danfoss said the new optimised microchannel heat exchangers (MCHEs) provide the ideal bal- ance between maximum heat rejection and in-
ternal refrigerant pressure drop.
Danfoss said OEMs can transition more easily
to low-GWP, low-density refrigerants.
for boiler saT
HE REVISION DRAMATICALLY
improves testing requirements and OPERATORS OF BOILERS controls for increased workplace and
WILL NOW BE BETTER personal safety.
fety
PROTECTED FOLLOWING
The standard now provides safer A SUBSTANTIAL REVISION methodologies and improved requirements to
OF ONE OF THE INDUSTRY’S KEY SAFETY STANDARDS.
address factors such as boiler controls, spe- cial lifting equipment, boiler access and other work health and safety (WHS) aspects.
The updated standard is AS/NZS 2593:2021, Boilers – Safety management and supervision systems.
Heat exchanger recycling
ALFA LAVAL HAS introduced heat exchanger recycling in partnership with a Swedish firm, Stena Recycling.
The ground-breaking business model for sus- tainable and environmentally efficient recycling of heat exchangers enables up to 100 per cent metal regeneration.
The partnership is a first step towards a cir- cular approach to the company’s product port- folio, and an important part of Alfa Laval’s com-
mitment to become carbon neutral by 2030. The goal of this new initiative is twofold: Firstly, to encourage replacement of less ener- gy-efficient plate heat exchangers by new mod-
ern products.
This will lead to significant energy savings and
reduced CO2 emissions in customers’ processes. Secondly, plate heat exchangers contain large amounts of valuable metals that can be recycled
and reused in new Alfa Laval products.
Plate heat exchangers contain large amounts of valuable metals that can be recycled and reused
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