LNG 냉열을 이용한 냉장⋅냉동 창고 모사에 관한 연구 = A Study of Simulation on the Refrigerated Warehouse System Based on the Cold Energy of Lng Using the Pro-Ii Simulator

다국어 초록 (Multilingual Abstract)

When Liquified Natural Gas (LNG) is vaporized into NG for industrial and household usage, tremendous cold energy was transferred from LNG to seawater during phase-changing process. This heat exchanger loop is not only a waste of huge cold energy, but will cause thermal pollution to the coastal fishery area also when cold water was re-injected into the sea. In this study, an innovation design has been performed to reclaim the cold energy for -35 to 62℃ refrigerated warehouse. Conventionally, this was done by installing mechanical refrigeration systems, necessitating tremendous electrical power to drive temperature. A closed loop LNG heat exchangers in series was designed to replace the mechanical or vapor-compression refrigeration cycle by process simulator. The process simulation software of PRO II with provision has been used to simulate this process for various conditions, what to effect on cold energy and used energy for re-liquefaction and evaporation process. In addition, through analysis the effect of the change of LNG supply pressure on sensible and latent heat, optimum operational conditions was suggested for LNG cold energy warehouse.

참고문헌 (Reference)

1 Promotion Project for Promotion of Global Warming Countermeasures, "Toward the Dissemination of Fuel Conversion Business to Southeast Asia by Export of LNG Subsea Transport Facilities Technology" Nomura Research Institute 2014

2 J. H. Cho, "The Design of Chemical Process for Energy Saving" AJIN Express 2007

3 J. W. Wu, "System Design and Analysis of Applying LNG Cold Energy to Refrigerated Warehouses" 15 : 44-47, 2010

4 J. Lian, "Research on High Efficient Utilization of LNG Cold Energy" 282-287, 2015

5 J. H. Cho, "PRO II with PROVISION Practice for Process Engineer" AJIN Express 2005

6 S. Z. Tian, "Design of Liquefied Natural Gas Properties Calculation Software" 43 : 254-261, 2014

7 K. H. Yang, "Design Analysis of a Refrigerated Warehouse using LNG Cold Energy" 4 (4): 14-23, 2003

8 Q. F. Liu, "Application and Research of LNG Cold Energy" 41 : 133-134, 2014