Combining the classical Austin-Palfrey formula with field data creates a new formula capable of predicting the amount of mixed-product volume arriving at each terminal of a long, multiproduct pipeline crossing varied terrain.The new formula considers the structure and terrain of the pipeline, the characteristics of the mixed oil products in its pumping stations, and the distribution of the products along its length.The 1,691-km trunkline of China's Southwest Multi-Product Pipeline (SWMPP) has 16 pump stations. The topography of the first half is gentle, while subsequent sections become rugged. OD along the trunkline varies in correspondence with design throughput as it changes along different sections of the pipeline.1 Table 1 shows the different diameters along the pipeline from the initial station to the final terminal.
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