Results also show that solution techniques such as Monte Carlo that have strong global search capabilities at expense of weak local search can discover optimum well locations only in media with low uncertainty. Outcomes illustrate that approaches like artificial immune system or particle swarm optimization which exhibit strong local search can effectively detect optimal well locations in high risk porous media.
We employ MATLAB software to construct artificial porous media prototypes with different uncertainties to investigate optimization technique performances in low rather than high risk media. Our main novelty in this work is that here we cooperate four heuristic optimization approaches with our self made fast simulation technique to optimize well locations for two exemplar miscible gas injection processes. Most important design factor namely injection well layout has no unique explicit solution to solve via analytical or numerical techniques thus one can propose meta or hyper heuristic approaches to solve such problems. Designing injection process presents inverse optimization issue whereas adjusting exploitation wells prior to primary recovery exhibits classic optimization problem. Using the data in the DePriester charts, plot y propane versus x propane for this mixture. I I I I.- D20 Use the DePriester chart to generate the temperature-composition diagram for isobutane and propane at 1000 kPa. Lesson5_Exercise4_Tom Smith).To detect optimum well locations for new injection wells one must generally notice to existing well locations, reservoir shape, capital cost per well construction in each area as well as recovery increase relevant to new well layout.
developed other series of charts that attempted to encapsulate the composition dependence in a rational way. In a similar vein, several groups including Hadden and Grayson, Lenoir and Hipkin, NGPSA, etc.
Once you have a solution to the exercises you will submit your answers as a PDF by uploading your file to be graded. (a) De Priester chart K-values for hydrocarbons, low temperature The UNIQUAC. designate the key components governing the separation design to be propane as the so-called.
The rest should be type-written for ease of reading when grading. Depriester Chart And K Values Trial Distillation Processes.
psia Methane Ethylene Ethane Tv (a) Propylene 1 Propane Isobutane.
The scanned pages should relate to using the graphs for solving the problem. K (or DePriester) Chart (high T range) in American Engineering Units from Introduction to Chemical Engineering Thermodynamics (7th ed) by Smith, J.M., Van Ness, H.C., and Abbott, M.M. I provided the DePriester chart for more information of the K-value. Important Note: You may submit scanned images or clear handwritten pages as a PDF that is less than 2 MB in size for this exercise.
Submit your answers as a PDF in the Exercise 4 assignment inside the Lesson 5 Module, showing all the steps in your calculations, indicate the K values you read from the nomograms, and state your assumptions, if any. Would the summer, or winter asphalt product be “heavier”? Explain why. Explain which of the following switches will take place in the refinery in about a month, and why? 40 ptsĪ) Switch the deasphalting solvent from propane to pentane.ī) Switch the deasphalting solvent from pentane to propane. In late fall this refinery switches operations to produce more fuel oil from VDR for the coming winter months, producing still some asphalt, but in lower quantity. A refinery in Northwest Pennsylvania produces asphalt as an important product that brings revenue, particularly during the summer months.