Wiley InterScience Backfile Collection 1832-2000
Chemistry and Pharmacology
Process Engineering, Biotechnology, Nutrition Technology
A Simple case study of a relatively high-friction pipeline with pump-assisted gravity flow (e.g., for high viscosity fluids such as hydrocarbon products) illustrates three features which lead to unexpectedly high transient pressure surges for which conventional alleviation practices (such as extended value-closure times or surge-relief devices at the pump discharge) are ineffective: (i)the use of a value to control flow in a long or high-friction pipeline;(ii)a system with a value closure a significant distance downstream of a pump; and(iii)a system where surge protection is located a significant distance away from a control value.
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