Scientists develop first cold storage road/rail container
University of Birmingham experts have worked with one of China’s biggest railway rolling stock companies to develop the world’s first shipping container using materials that store and release cold energy. Using phase change material (PCM), Birmingham scientists and their counterparts at CRRC Shijiazhuang have developed a ‘refrigerated’ truck-to-train container that is easier and more efficient to operate than conventional equipment.
Once ‘charged’, PCM inside the container — which can be transferred from train to truck and vice versa — can keep the inside temperature between 5 and 12°C for up to 120 hours. The technology has recently completed commercial trials carrying real goods for 35,000 km of road and 1000 km of rail transport across different climate zones.
Professor Yulong Ding, Director of the Birmingham Centre for Energy Storage, who led the research at Birmingham, commented: “Energy storage is an area of world-leading expertise at the University of Birmingham and cold chain technologies research is one of the most important topics at our Centre for Energy Storage.
“We have developed a productive collaboration with CRRC Shijiazhuang and this innovative technology marks the beginning of developing an efficient and economic rail and road freight cold chain.
“We are proud to contribute to the development of safe and clean low-carbon energy technologies in China and beyond, which will ultimately help us to reduce the energy burden on our planet and tackle climate change.”
Cooling is essential to modern society, which already causes twice the global greenhouse emissions of shipping and aviation combined with the cold chain being a significant cause of pollution. Increasing demand for cooling will result in spiralling energy usage with a potentially disastrous environmental impact, if left unchecked.
“Without ambitious intervention, research shows that energy demand from cooling could increase fivefold by 2050, putting an increased pressure on global energy resources,” said Professor Ding. “How the world meets its demand for cooling could have a major impact on climate change and air pollution.”
Several cold chain logistics companies in China have expressed strong interest in the container, which provides a more stable temperature compared with the mechanical units and hence a higher quality of goods at the destination. It does not need a power supply during its journey, making transfer between road and rail easier. The container’s location and temperature can also be monitored in real time using mobile communication technologies.
Founded in 1905, CRRC Shijiazhuang is China’s largest railway truck maintenance company and rail vehicle air-conditioning equipment manufacturer. It is also striving to become a major manufacturer of new energy vehicles in China.
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