10 hours ago
The biodegradable film scientists say could replace air conditioning
Scientists from China and Australia have developed a new biodegradable metafilm designed to reduce building energy consumption.
The film, made from plant-derived polylactic acid, passively reflects solar radiation and allows internal heat to escape, cooling surfaces without electricity.
Testing showed the metafilm can reduce temperatures by up to 9.2C during peak sunlight hours and keep surfaces 4.9C cooler on average during the day.
This environmentally friendly alternative to air conditioning is durable, maintaining performance even after prolonged exposure to harsh conditions.
Computer simulations indicate the metafilm could cut annual energy consumption in hot cities by over 20 per cent, with potential future applications in various sectors.
