Removal of gas-side particulate fouling layers by foreign particles as a function of flow direction

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Abstract

Removal of particulate fouling layers by externally injected particles as a function of flow direction with respect to gravity is investigated experimentally. Three orientations of flow have been investigated, horizontal flow, upward flow and a downward flow. It is found that fouling starts at the point of stagnation irrespective of the flow direction, and also starts at the top point of the heat exchanger tubes. Particulate fouling grows from these two points except for the downward flow, were the flow stagnation point coincides with the top point of the heat exchanger tubes and the growth of the fouling layer starts only from one point. It was not possible to remove the fouling layer in case of a horizontal and an upward flow by the externally injected particles, however in case of a downward flow most of the fouling layers were removed by the external particles. It can be concluded that the downward flow is the best flow orientation to linger particulate fouling and for removal of fouling layers by externally injected particles.
Original languageEnglish
Pages (from-to)2335-2343
JournalApplied Thermal Engineering
Volume29
Issue number11-12
DOIs
Publication statusPublished - 2009

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Fouling
Gases
Tubes (components)
Gravitation

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title = "Removal of gas-side particulate fouling layers by foreign particles as a function of flow direction",
abstract = "Removal of particulate fouling layers by externally injected particles as a function of flow direction with respect to gravity is investigated experimentally. Three orientations of flow have been investigated, horizontal flow, upward flow and a downward flow. It is found that fouling starts at the point of stagnation irrespective of the flow direction, and also starts at the top point of the heat exchanger tubes. Particulate fouling grows from these two points except for the downward flow, were the flow stagnation point coincides with the top point of the heat exchanger tubes and the growth of the fouling layer starts only from one point. It was not possible to remove the fouling layer in case of a horizontal and an upward flow by the externally injected particles, however in case of a downward flow most of the fouling layers were removed by the external particles. It can be concluded that the downward flow is the best flow orientation to linger particulate fouling and for removal of fouling layers by externally injected particles.",
author = "M.S. Abd-Elhady and C.C.M. Rindt and {Steenhoven, van}, A.A.",
year = "2009",
doi = "10.1016/j.applthermaleng.2008.11.020",
language = "English",
volume = "29",
pages = "2335--2343",
journal = "Applied Thermal Engineering",
issn = "1359-4311",
publisher = "Elsevier",
number = "11-12",

}

Removal of gas-side particulate fouling layers by foreign particles as a function of flow direction. / Abd-Elhady, M.S.; Rindt, C.C.M.; Steenhoven, van, A.A.

In: Applied Thermal Engineering, Vol. 29, No. 11-12, 2009, p. 2335-2343.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Removal of gas-side particulate fouling layers by foreign particles as a function of flow direction

AU - Abd-Elhady, M.S.

AU - Rindt, C.C.M.

AU - Steenhoven, van, A.A.

PY - 2009

Y1 - 2009

N2 - Removal of particulate fouling layers by externally injected particles as a function of flow direction with respect to gravity is investigated experimentally. Three orientations of flow have been investigated, horizontal flow, upward flow and a downward flow. It is found that fouling starts at the point of stagnation irrespective of the flow direction, and also starts at the top point of the heat exchanger tubes. Particulate fouling grows from these two points except for the downward flow, were the flow stagnation point coincides with the top point of the heat exchanger tubes and the growth of the fouling layer starts only from one point. It was not possible to remove the fouling layer in case of a horizontal and an upward flow by the externally injected particles, however in case of a downward flow most of the fouling layers were removed by the external particles. It can be concluded that the downward flow is the best flow orientation to linger particulate fouling and for removal of fouling layers by externally injected particles.

AB - Removal of particulate fouling layers by externally injected particles as a function of flow direction with respect to gravity is investigated experimentally. Three orientations of flow have been investigated, horizontal flow, upward flow and a downward flow. It is found that fouling starts at the point of stagnation irrespective of the flow direction, and also starts at the top point of the heat exchanger tubes. Particulate fouling grows from these two points except for the downward flow, were the flow stagnation point coincides with the top point of the heat exchanger tubes and the growth of the fouling layer starts only from one point. It was not possible to remove the fouling layer in case of a horizontal and an upward flow by the externally injected particles, however in case of a downward flow most of the fouling layers were removed by the external particles. It can be concluded that the downward flow is the best flow orientation to linger particulate fouling and for removal of fouling layers by externally injected particles.

U2 - 10.1016/j.applthermaleng.2008.11.020

DO - 10.1016/j.applthermaleng.2008.11.020

M3 - Article

VL - 29

SP - 2335

EP - 2343

JO - Applied Thermal Engineering

JF - Applied Thermal Engineering

SN - 1359-4311

IS - 11-12

ER -