With the widely-used for industry and the benefits for the environment, liquefied natural gas (LNG) has become a substitute marine fuel of oil. During LNG vaporization process, about 830kJ/kg cryogenic energy is released which can be utilized for domestic purposes on LNG powered vessels. This paper investigated a multi-stage condensers system which utilizes the low temperature and large amount of LNG cryogenic energy to condense the water steam. The simulation model is conducted in Siemens LMS Imagine. Lab AMESim in order to investigate the performance of the system in different conditions under higher vacuum degrees such as different temperature, different relative humidity, and different stages of condenser and so on. In addition, the spare part of cryogenic energy can be stored as cooling energy rather than wasting. The results show that the multi-stage condensers system can be used for any water steam under any conditions, increase the mass of fresh water and decrease the requirement capacity of LNG cryogenic energy.
|Number of pages
|Published - 15 Mar 2019
|10th International Conference on Applied Energy, ICAE 2018 - Hong Kong, China
Duration: 22 Aug 2018 → 25 Aug 2018
- cryogenic energy
- fresh water
- multi-stage condenser