Ambient Air Vaporizer (AAV) is an essential facility in the process of generating natural gas that uses air in the atmosphere as a medium for heat exchange to vaporize liquid natural gas into gas-state gas. AAV is more economical and eco-friendly in that it uses less energy compared to the previously used Submerged vaporizer (SMV) and Open-rack vaporizer (ORV). However, AAV is not often applied to actual processes because it is heavily affected by external environments such as atmospheric temperature and humidity. With insufficient operational experience and facility operations that rely on the intuition of the operator, the actual operation of AAV is very inefficient. To address these challenges, this paper proposes an artificial intelligence-based model that can intelligent AAV operations based on operational big data. The proposed artificial intelligence model is used deep neural networks, and the superiority of the artificial intelligence model is verified through multiple regression analysis and comparison. In this paper, the proposed model simulates based on data collected from real-world processes and compared to existing data, showing a 48.8% decrease in power usage compared to previous data. The techniques proposed in this paper can be used to improve the energy efficiency of the current natural gas generation process, and can be applied to other processes in the future.

1. 서 론
2. 공기식 기화기
    2.1 공기식 기화기 구조
    2.2 현행 시스템 문제점
    2.2 기화기 최적 운용을 위한 문제 정의
3. 데이터 수집
    3.1 수집 데이터
    3.2 데이터 전처리 및 데이터 마트 구축
4. 모델 개발
    4.1 상관관계 분석을 통한 독립변수 도출
    4.2 매개변수 생성을 통한 종속변수 도출
    4.3 온도변화량 예측모델 수립
    4.4 온, 습도 예측모델 수립
    4.5 모델 검증
5. 결론 및 토의
References

• Sang-Hyun Lee(조선대학교 산업공학과 & IT-Bio 융합시스템 전공) | 이상현
• Gi-Jung Cho(조선대학교 산업공학과) | 조기정
• Jong-Ho Shin(조선대학교 산업공학과) | 신종호 Corresponding Author