Diagnosis of Heat Exchanger Scales in Cooling Water Systems
An experimental database is compiled in order to fingerprint the scales formed over the hot surfaces of heat exchangers, in cooling water systems or other systems with similar chemistry. To collect these data, a dynamic simulating pilot plant was designed with considerable application flexibility am...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
2008-03-01
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| Series: | Iranian Journal of Chemistry & Chemical Engineering |
| Subjects: | |
| Online Access: | http://www.ijcce.ac.ir/article_7013_2e5377fb330b63ec5924c6c1ce4ffa08.pdf |
| _version_ | 1818068536280481792 |
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| author | Mohammad Kameli Naser Esmaeili Hossein Rahimi Mofrad |
| author_facet | Mohammad Kameli Naser Esmaeili Hossein Rahimi Mofrad |
| author_sort | Mohammad Kameli |
| collection | DOAJ |
| description | An experimental database is compiled in order to fingerprint the scales formed over the hot surfaces of heat exchangers, in cooling water systems or other systems with similar chemistry. To collect these data, a dynamic simulating pilot plant was designed with considerable application flexibility among which simultaneous flow of water with different velocity and heat fluxes to three simulating heat exchangers can be mentioned. Changing the water chemistry and using various inhibitors composition known in the art, the nature of scale deposits formed on the heating elements was studied by scanning electron microscopy (SEM) coupled with Energy Dispersive X-ray instrument. The heat flux of the elements ranges from 9.46 × 104 to 1.45 × 105 J/m2.sec, which depending on the velocity of fluid passing through the orifice of pipe, give rise to skin temperatures of 80 °C to 230 °C. The flow velocities used in this study were 0.21 and 0.46 m/sec. Phosphonates and most popular polymers were studied as scale inhibitors. |
| first_indexed | 2024-12-10T15:41:08Z |
| format | Article |
| id | doaj.art-57af93899bb945c68b87194ea469811d |
| institution | Directory Open Access Journal |
| issn | 1021-9986 1021-9986 |
| language | English |
| last_indexed | 2024-12-10T15:41:08Z |
| publishDate | 2008-03-01 |
| publisher | Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR |
| record_format | Article |
| series | Iranian Journal of Chemistry & Chemical Engineering |
| spelling | doaj.art-57af93899bb945c68b87194ea469811d2022-12-22T01:43:06ZengIranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECRIranian Journal of Chemistry & Chemical Engineering1021-99861021-99862008-03-0127165727013Diagnosis of Heat Exchanger Scales in Cooling Water SystemsMohammad Kameli0Naser Esmaeili1Hossein Rahimi Mofrad2Chemical and Petrochemical Division, Research Institute of Petroleum Industry, P.O. Box: 18745-4163 Tehran, I.R. IRANChemical and Petrochemical Division, Research Institute of Petroleum Industry, P.O. Box: 18745-4163 Tehran, I.R. IRANChemical and Petrochemical Division, Research Institute of Petroleum Industry, P.O. Box: 18745-4163 Tehran, I.R. IRANAn experimental database is compiled in order to fingerprint the scales formed over the hot surfaces of heat exchangers, in cooling water systems or other systems with similar chemistry. To collect these data, a dynamic simulating pilot plant was designed with considerable application flexibility among which simultaneous flow of water with different velocity and heat fluxes to three simulating heat exchangers can be mentioned. Changing the water chemistry and using various inhibitors composition known in the art, the nature of scale deposits formed on the heating elements was studied by scanning electron microscopy (SEM) coupled with Energy Dispersive X-ray instrument. The heat flux of the elements ranges from 9.46 × 104 to 1.45 × 105 J/m2.sec, which depending on the velocity of fluid passing through the orifice of pipe, give rise to skin temperatures of 80 °C to 230 °C. The flow velocities used in this study were 0.21 and 0.46 m/sec. Phosphonates and most popular polymers were studied as scale inhibitors.http://www.ijcce.ac.ir/article_7013_2e5377fb330b63ec5924c6c1ce4ffa08.pdfheat exchangercooling waterdepositscale inhibitorsscalewater chemistry |
| spellingShingle | Mohammad Kameli Naser Esmaeili Hossein Rahimi Mofrad Diagnosis of Heat Exchanger Scales in Cooling Water Systems Iranian Journal of Chemistry & Chemical Engineering heat exchanger cooling water deposit scale inhibitors scale water chemistry |
| title | Diagnosis of Heat Exchanger Scales in Cooling Water Systems |
| title_full | Diagnosis of Heat Exchanger Scales in Cooling Water Systems |
| title_fullStr | Diagnosis of Heat Exchanger Scales in Cooling Water Systems |
| title_full_unstemmed | Diagnosis of Heat Exchanger Scales in Cooling Water Systems |
| title_short | Diagnosis of Heat Exchanger Scales in Cooling Water Systems |
| title_sort | diagnosis of heat exchanger scales in cooling water systems |
| topic | heat exchanger cooling water deposit scale inhibitors scale water chemistry |
| url | http://www.ijcce.ac.ir/article_7013_2e5377fb330b63ec5924c6c1ce4ffa08.pdf |
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