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기화 설비의 토출 온도 예측을 위한 인공지능 모델 개발

Development of Artificial Intelligence Model for Outlet Temperature of Vaporizer

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초록

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.

Abstract

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.

참고문헌 (10)

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  3. 정효민, "Optimum Design of Vaporizer Fin with Liquefied Natural Gas by Numerical Analysis", Journal of Mechanical Science and Technology, 20(4), pp.545~553 (2006), 대한기계학회
  4. 김동현, "딥러닝을 활용한 산지습지 수위 예측 모형 개발", 한국습지학회지, 22(2), pp.106~112 (2020), 한국습지학회
  5. 김정욱, "수정 수문지형학적 방법을 적용한 강천 대체습지의 기능평가", 한국습지학회지, 19(3), pp.318~326 (2017), 한국습지학회
  6. 김남국, "해수 2단 공급에 따른 해수식 기화기(ORV)의 LNG 기화 특성 연구", 한국가스학회지, 23(1), pp.41~46 (2019), 한국가스학회[DOI]
  7. Experimental Study and Modeling of Frost Formation in Heat Exchangers; Etude Experimentale et Modelisation du Phenomene de Givrage Dans Les Echangeurs de chaleur, "Le Gall, R.", Institut National Polytechnique de Grenoble, ~ (1994)
  8. Lee, Y. K., "Robust Design of Ambient-Air Vaporizer based on Time-Series Clustering", Computers & Chemical Engineering, 118, pp.236~247 (2018)
  9. Ma, G., "Analysis on Heat Transfer Effect of Air-Temperature Vaporizer in LNG Satellite Station", Advances in Mechanical Engineering, 9(6), pp.1~11 (2017)
  10. Schmidhuber, J., "Deep Learning in Neural Networks : An Overview", Neural Networks, 61, pp.85~117 (2015)

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