Tearing Algorithms for Separation Process Simulation
نویسنده
چکیده
A modified sum-rates method based on insights provided by an analysis given by Sridhar and Lucia (Ind. Engng Chem. Res. 28, 793-803, 1989) is presented. Newton’s method is used to accelerate the inner loop of combined mass balance and phase equilibrium equations and to solve the outer loop of energy balance equations. All partial derivative information is obtained in analytical form. Several literature examples are used to show that the proposed algorithm is more reliable and more efficient than traditional sum-rates methods and provides the capability of solving problems involving intermediate and narrow boiling mixtures.
منابع مشابه
Simulation of a membrane air separation unit using industrial process simulators
Nowadays, membrane processes are widely used for high purity Nitrogen production. Separation of air by membranes is a flexible process in which the investment and operational costs are lower than for example adsorption or cryogenic processes. Such processes are based on relative permeability of air components which are transported by the pressure difference between two sides of the membrane. M...
متن کاملFinite element simulation of two-point incremental forming of free-form parts
Two-point incremental forming method is considered a modern technique for manufacturing shell parts. The presence of bottom punch during the process makes this technique far more complex than its conventional counterpart i.e. single-point incremental forming method. Thus, the numerical simulation of this method is an essential task, which leads to the reduction of trial/error costs, predicts th...
متن کاملUsing Finite Point Method for the Numerical Simulation of Heat Transfer Coupled with Microsegregation during Continuous Casting
In the present work, a meshless method called Finite Point Method (FPM) is developed to simulate the solidification process of a continuously cast steel bloom in both primary and secondary cooling regions. The method is based on the use of a weighted least-square interpolation procedure. A transverse slice of the bloom moving at casting speed is considered as the computational domain and two di...
متن کاملمعرّفی الگوریتم جدید DESICA برای جداسازی کور سیگنال منابع گفتار در حالت پویا
Abstract: We consider a new scenario in blind speech separation problem in which the number and the features of active sources change with time in opposite to the previous methods in which all sources are active all the time. Accordingly, we propose the new DESICA algorithm for source separation which is a compound of the ICA and DESPRIT algorithms. In this algorithm, using the ICA, the separat...
متن کاملEngineering of Membrane Gas Separation Processes: State of The Art and Prospects
Membrane processes are today one of the key technologies for industrial gas separations and show growing interest for future use in sustainable production systems. Besides materials development, dedicated engineering methods are of major importance for the rigorous and most efficient design of membrane units and systems. Starting from approaches based on simplified hypotheses developed in the 5...
متن کامل