The 160t AIP system, which measures 8.6m in length and 6.2m in diameter is integrated into the submarine.
The MESMA plug is a complete hull section that allows the vessel to remain submerged for over two weeks without having to surface to recharge its batteries.
The installation of MESMA does not affect the overall balance of the submarine and will significantly increase the range and endurance of conventionally powered submarines.
MESMA simultaneously supplies the ship and the propulsive system with electricity and recharges the batteries without surfacing.
MESMA consists of a combustion module supplied with liquid oxygen and fuel, and a steam production loop. The heat of the combustion gases is used to produce steam which supplies a turbo-generator.
MESMA extends the underwater endurance of a conventional submarine to more than 3 weeks. This significantly increases its range of action and improves its stealth in operation.
The exact name or classification of the AIP on Chinese boats is not available, however, it is probably based on the Stirling Cycle AIP system initially developed by the Swedish.