PIPELINE LEAK LOCATION

摘要

The position of a leak in a gas or liquid pipeline is accurately determined by measuring the amplitude of rarefactions propagated through the gas or liquid at least two monitoring points, one each upstream and downstream of the leak. The leak position is calculated using the formula $where\; Y\; is\; the\; distance\; of\; the\; leak\; from\; one\; of\; the\; monitoring\; points;\; S\; is\; the\; distance\; between\; two\; monitoring\; points,\; one\; on\; each\; side\; of\; the\; leak;\; gamma\; is\; the\; amplitude\; ratio\; of\; the\; rarefactions\; received\; by\; the\; two\; monitoring\; points,\; and\; alpha\; is\; the\; exponential\; attenuation\; factor\; with\; distance\; for\; the\; propagation\; of\; the\; rarefaction\; in\; the\; fluid.$