SHANGHAI: With its smog-prone north desperate to slash coal consumption, China is looking to deploy nuclear power to provide reliable winter heating, raising public safety concerns - though developers say the risks are minimal.
State-owned China National Nuclear Corp (CNNC) recently conducted a successful 168-hour trial run in Beijing for a small, dedicated “district heating reactor” (DHR) it has named the “Yanlong”. With the north facing natural gas shortages as cities switch away from coal, CNNC presented the “DHR-400” as an alternative heat supplier for the region, with each 400-megawatt unit capable of warming 200,000 urban households. The model - which consists of a reactor core immersed in a water-filled tank around the same volume as an Olympic swimming pool - will require 1.5 billion yuan ($226.7 million) in investment and take just three years to build, a crucial advantage in a sector plagued by construction delays. As a small and relatively simple “swimming pool” design, the low-pressure reactor is expected to be safer than conventional models, with temperatures not exceeding 100 degrees Celsius, and it could be plugged directly into existing heating networks. The technology is ready, said Gu Shenjie, deputy chief engineer with the Shanghai Nuclear Engineering Research and Design Institute, part of the State Power Investment Corp. “They have supplied heat to their institute and office buildings and have successfully done that for three years,” Gu told Reuters on the sidelines of the INNCH New Nuclear Build Conference in Shanghai, adding that commercialisation was the next stage
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