بررسي علل توقف نفتكش ها در انبارهاي نفت با استفاده از تكنيك شبيه سازي رياضي

An investigation of the factors leading to tanker trucks delay at Oil Depots using computer simulation techniques

One of the important problems in oil products loading operation at oil depots is tanker trucks delay while awaiting arrival at the depot. Most oil depots around the world aim for optimal allocation of resources. In this paper, we use a queue model of depot with successive services in order to project quantitative results that can be used to assess performance of the Northwest Tehran oil depot. With respect to queue models, we found that the Jackson networks could not meet all the requirements. We, therefore, used simulation techniques to solve the model. We found that the results were a good proxy for actual responses in the real system. Finally by comparing the simulated results with reality it was obvious that changing the loading arm combinations or increasing the capacity of some stations within the depot can decrease the tanker trucks waiting times. Different sensitivity tests were applied to study the effect of different loading arm combinations on tanker trucks waiting time. In this article, results of the sensitivity tests are briefly illustrated.