14 August 2022
To provide a comfortable living environment for the taikonauts on board the Station, the research team on the ground has put in quite an effort to turn it down. The refrigerator is one of the noisy equipment inside the Wentian module because it has as many integrated functions as possible. The researchers had to design a new pump and noise-reduction materials. As the equipment are different in aspects, including the size, location and the cause of the noise, the research team had to use diverse methods to reduce the noise, such as covering them with rubber or placing them inside soundproof boxes. As a result, the noise in the work area in the Wentian module is maintained at under 60 decibels. It is 50 decibels in the sleeping area, which offers taikonauts a quiet environment to rest as they continue their work in space.
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