Author(s): Pranab K. Mohapatra; M. Hanif Chaudhry

Linked Author(s):

Keywords: Frequency domain; periodic flow; pipe blockage; pipe flow; piping system

Abstract: The discrete Fourier transform (FT) of the peak pressure frequency response (PPFR) at a downstream valve generated by the transfer matrix method is used to detect a partial pipeline blockage. The location of this blockage is detected by locating the peak in the FT of the PPFR. This is also valid if multiple partial blockages are present. A methodology to detect individual blockage sizes is presented for single and double partial blockages. Yet, the present methodology is unsuccessful to predict the individual sizes if there are more than two partial blockages. However, the combined size of the partial blockages is detected by the magnitude of the zeroth frequency. In addition, special cases of partial blockage are presented to indicate the limitations of the present methodology.

DOI: https://doi.org/10.1080/00221686.2010.544887

Year: 2011