As global temperatures rise, the challenge of maintaining comfortable temperatures in underground transport systems becomes increasingly pressing. Researchers are exploring innovative solutions to address this issue.
Jonathan Paul, from Royal Holloway, University of London, has used a smartphone-equipped thermometer to record temperatures exceeding 42 degrees Celsius in London Tube stations, highlighting the discomfort faced by commuters. The dense clay through which the Tube network runs has been absorbing heat for over a century, making traditional cooling methods challenging.
Paul’s proposed solution involves leveraging groundwater as a refrigerant to extract excess heat from underground stations. This innovative approach aims to ensure the comfort and safety of passengers, particularly as climate change intensifies heatwaves globally. While air-conditioned trains have existed for decades, the need for effective cooling systems has become more critical, as evidenced by recent incidents of passengers fainting due to extreme heat.
Paul’s research not only addresses the immediate need for cooling but also emphasizes the long-term sustainability of underground transport systems in the face of climate change. By utilizing natural resources like groundwater, the proposed technology offers a potentially eco-friendly cooling method that could benefit underground networks worldwide.
Source: WIRED