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Energy and Climate Change

Impactful University Program(s) on Climate Change

Impactful University Program(s) on Climate Change

“Fahsai 2 at Phayao”, an Enhanced City Air Purifier Tower to Research PM2.5

Impactful university program (University of Phayao, Thailand)

Description: University of Phayao Works with RISC by MQDC on “Fahsai 2 at Phayao”, an Enhanced City Air Purifier Tower to Research PM2.5 in the North of Thailand

          “Fahsai 2 at Phayao”, the city-level air purification tower, uses the same technology as “Fahsai 2” at the Airport Rail Link at Makkasan Station in Bangkok with an automatic air purification system. The hybrid air purifier tower combines energy from its solar panels with mains power to reduce its daytime electricity demand and achieve environmental and sustainability goals while enhancing well-being. Developing on the first generation of Fahsai, the device has an enhanced ability to kill bacteria, fungi, and viruses using UVC and ozone.

          The air purifier tower’s capacity has also been enhanced with 4 larger fan blades each moving 30,000 cubic meters/hour (up from 15,000) for a total of 120,000 cubic meters/hour to serve an area of about 1 football field. The device has meanwhile been reduced to 5.1 meters in height with a base 2.4 meters wide to facilitate access and reduce construction costs. The outflow has been redesigned to prevent reversed airflow. A new design for the moisture trap prevents water spray being blown out. Adjustable solar panels help control the direction of clean air to be at an effective level and travel further. The solar panels can be adjusted according to sunlight. They unfold during the day and close at night, when lighting comes on to enhance safety.

          The first-generation "Fahsai" city-level air purification tower was installed at 101 True Digital Park in 2020. RISC launched the second generation of "Fahsai 2” in early 2021 at the Makkasan Airport Rail Link Station to help solve the problem of air pollution, especially PM2.5 dust and airborne germs. The project aims to help tackle air pollution in many areas.

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