Future homeowners in Western Australia could soon be living in a greener, more sustainable world thanks to innovative research from Murdoch University. A PhD student is proposing the use of microalgae as a revolutionary new cooling system for residential properties, potentially transforming how we manage indoor temperatures.
Microalgae: A Sustainable Design Solution
Microalgae-based architecture has been gaining significant attention globally as an environmentally friendly design approach. These microscopic organisms deliver a remarkable range of environmental benefits, most notably through their exceptional carbon capture capabilities and reduction of greenhouse gas emissions.
Research indicates that microalgae are between 10 to 50 times more efficient than conventional plants at converting carbon dioxide. They also boast rapid growth rates and high biomass productivity, making them an ideal candidate for sustainable applications.
Heat Absorption Breakthrough
Beyond these established benefits, Murdoch University PhD candidate Amin Mirabbasi believes the heat absorption properties of microalgae could represent a game-changing development for sustainable architecture. Mr Mirabbasi, who studies at the university's new Algae Innovation Hub, has dedicated three years to designing microalgae-filled photobioreactors that can be seamlessly incorporated into various structures.
These innovative systems can be integrated into houses, apartments, mining dongas, and broader urban designs. Mr Mirabbasi sees microalgae as an untapped opportunity for Western Australia, particularly given the state's ideal growing conditions.
Perfect Climate for Algae Cultivation
"Compared with colder European and southern Australian climates, Perth presents negligible freezing risk and high solar availability, which supports microalgae cultivation; however, overheating control is essential," Mr Mirabbasi explained.
He detailed how the microalgae culture in a water medium effectively absorbs heat and filters solar radiation, which could significantly reduce indoor overheating. "In WA's climate, that means less reliance on air-conditioning during peak hours, which translates into real energy and cost savings," he emphasized.
Practical Applications and Designs
The researcher has already designed prefabricated mining accommodation units that utilize microalgae photobioreactors as passive solar control systems. These units provide shading while absorbing heat, simultaneously generating oxygen and purifying the air.
Mr Mirabbasi's research extends beyond residential applications to include public infrastructure such as bus stops, shelters, garages, and artistic streetscapes. Many of these designs incorporate tubular photobioreactors that could be positioned along walkways, building exteriors, and shopping districts to create visually striking installations.
Illuminating Green Culture
These innovative systems can be fitted with LED lighting to illuminate the green culture at night, creating beautiful urban displays. "The beauty of these biodesigns is they combine science and nature in a way people can see and feel," Mr Mirabbasi said.
"Watching the microalgae grow, bubble and respond to light creates a biophilic experience that draws people in, connects them to nature and quietly reinforces sustainability awareness in everyday spaces," he added.
From Research to Real-World Implementation
As he nears completion of his PhD, Mr Mirabbasi is eager to test his ideas in practical settings. "For me, this research isn't about staying on the drawing board. It's about turning ideas into tangible outcomes — designs that can be built, tested and implemented in real settings, where they can genuinely make a difference," he stated.
This innovative approach to sustainable cooling represents a significant step forward in green architecture, potentially reducing energy consumption while creating more visually appealing and environmentally conscious urban environments.
