Page 4

All articles

  • Mesmerizing view of fresh green fields under a cloudy sky

    Why does hot air rise? 

    We’ve all heard the saying “hot air rises”. Daniel Bonatti, M.AIRAH, explains why this phenomenon occurs, how our understanding has evolved over time, and what it means for practical applications in building design.

  • Slow response to new filter standards 

    An important changeover of filter standards is underway in Australia, but industry has so far been slow to move.

  • mark-vender

    Advocacy

    The human factor

  • A green light from voters

    AIRAH has prepared a document outlining the Institute’s policy priorities for the freshly re-elected federal government.

  • From the president

    Lessons from a legend

  • Z6p 4507 Fake Webres

    From the editor

    Same, but different

  • Blind spots on the road to net zero: Australia’s refrigerant reporting gaps 

    Australia’s National Greenhouse and Energy Reporting (NGER) Act mandates that large corporations report greenhouse gas emissions, energy production, and consumption, including emissions from refrigerants.

  • Simon Hill, LAIRAH, ARBS Hall of Fame

    A tribute to Simon Hill, L.AIRAH 

    AIRAH sends its condolences to the family of Simon Hill, L.AIRAH, who passed away on April 3.

  • close-up-ventilation-system

    AIRAH develops short course on ASHRAE Standard 241 

    Ecolibrium speaks with Brad Prezant, Affil.AIRAH, instructor of the Institute’s new short course on ASHRAE Standard 241. 

  • 250325 RefCon25 crowd web-res

    What we learnt at RefCon25 

    AIRAH’s 2025 Refrigeration Conference was billed as the hottest conference for the coolest industry, and it didn’t disappoint. 

  • Babylyn Briones

    Q&A with Babylyn Briones 

    Babylyn Briones is AIRAH’s new Accreditation Officer and Registrar, having started with the Institute in April. Ecolibrium got to know Babylyn, whose work focuses primarily on the AIRAH Professional Engineer Register (APER).

  • Spectacular conversion

    Cutting-edge HVAC and BMS design played a huge role in the Canberra Raiders’ redevelopment of their spiritual home at Northbourne Oval. Here’s how the state-of-the-art project unfolded.

  • How’s your air? Q&A with Brandon Chappo

    After mould-related illness turned Brandon Chappo’s life upside down, he co-founded Change the Air Foundation to do provide a voice for the millions of others affected.

  • Welcome to the new-look Ecolibrium

    Ecolibrium has undergone a redesign to make the magazine easier to read, more visually appealing, and better aligned with AIRAH’s brand.

  • The importance of external CFD for data centres

    This paper discusses the growing importance of external CFD in evaluating and optimising rooftop mechanical layouts for high-density data centres.

  • Mitigating airborne pathogens indoors: A systematic review of existing and next-generation air cleaning technologies

    This technical paper provides a systematic review and comparison of existing and next-generation air cleaning technologies.

  • Innovative space cooling and heating using an R744 heat pump: a comparative study 

    This paper by Alemu Tiruneh Alemu, M.AIRAH, and Julian Hudson, M.AIRAH, explores sustainable HVAC solutions by focusing on electrifying heating with heat pumps and operational cooling and heating efficiencies.

  • Three cheers!

    The electrification of 3 Ravens brewery in Melbourne could serve as a blueprint for other craft operations, as Nick Johns-Wickberg discovers.

  • Legionella in a warming world 

    Clive Broadbent, L.AIRAH, discusses how climate change and increases in surface water temperatures could potentially encourage the growth of bacteria that prefer warm water (mesophiles), including Legionella.

  • Double trouble

    Mark Lommers, M.AIRAH, looks at the repeal of Western Australia’s controversial Sewerage (Lighting, Ventilation and Construction) Regulations 1971, which for more than 50 years required the doubling up of toilet exhaust fans.