Prediction of PVT properties of Ammonia by using Artificial Neural Network and equations of state
Publish place: 12th National Iranian Chemical Engineering Congress
Publish Year: 1387
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
NICEC12_794
تاریخ نمایه سازی: 30 شهریور 1387
Abstract:
In this work a new method based on Artificial Neural Networks (ANN) for prediction of thermodynamic properties has been proposed for Ammonia. Knowledge of the thermodynamic properties of Ammonia is necessary for the interpretation of physical and chemical processes; because of it is an important gas that plays significant roles in many processes. For this development, the data sets that collected from Ammonia thermodynamic table [Perry’s Chemical Engineering Handbook] were used. After training the networks, the models were tested by unseen data to evaluate their accuracy and trend stability. Among this training the back-propagation learning algorithm with various training such as Scaled Conjugate Gradient (SCG), Levenberg-Marquardt (LM) and Resilient Backpropagation (RP)
methods were used. The best suitable algorithm with appropriate number of seven neurons in the hidden layer which provides the minimum Mean Square Error (MSE), 0.0000900135, is found to be the SCG algorithm. Then ANN's results were compared with results of some equations of state such as Lee Kesler, NRTL, Soave-Redlich-Kwong and Peng Robinson. Comparisons showed the ANN capability for
prediction of the thermodynamic properties of Ammonia.
Keywords:
Authors
Amir Sharifi
Department of Chemical Engineering, Faculty of Engineering ,Farahan branch, Azad University, Arak
Abdolreza Moghadassi
Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak
Fahime Parvizian
Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak
SayedMohsen Hosseini
Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak
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