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Ocean Systems Engineering
  Volume 2, Number 1, March 2012 , pages 33-47
DOI: https://doi.org/10.12989/ose.2012.2.1.033
 

Modeling of non-isothermal CO2 particle leaked from pressurized source: II. Behavior of single droplet
Daejun Chang, Sang Heon Han and Kyung-won Yang

 
Abstract
    This study revealed the behavior of droplets formed through leak process in deep water. There was a threshold depth named the universal attraction depth (UAD). Droplets rose upward in the zone below the UAD called the rising zone, and settled down in the zone above the UAD called the settling zone. Three mass loss modes were identified and formulated: dissolution induced by mass transfer, condensation by heat transfer and phase separation by pressure decrease. The first two were active for the settling zone, and all the three were effective for the rising zone. In consequence, the life time of the droplets in the rising zone was far shorter than that of the droplets in the settling zone.
 
Key Words
    CO2; droplet; depletion; universal attraction depth (UAD); dissolution; condensation; isenthalpic expansion
 
Address
Daejun Chang and Sang Heon Han : Division of Ocean Systems Engineering, Korea Advanced Institute of Science and Technology, Daejeon,Republic of Korea
Kyung-won Yang : Det Norske Veritas Korea, Busan, Republic of Korea
 

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