Journal article
Study of scale-removal methods in a double-pipe heat exchanger
Heat transfer engineering, v 21(3), pp 50-57
01 May 2000
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The objective of the present study was to examine the effectiveness of four cleaning methods for the removal of tube-side fouling in a double-pipe heat exchanger. The four cleaning methods are (1) hydrolazing with 10,000-psi head pressure. (2) hydrolazing with 20,000-psi head pressure, (3) chemical cleaning, and (4) brush punching. Fouled tubes were prepared using water from a cooling tower. Each test started with a brand new tube. When the overall heat transfer coefficient dropped by 40% from the initial peak value, scales in the fouled tubes were removed using one of the above four methods. Both the overall heat transfer coefficient and inside diameter were measured before and after fouling, by which the effectiveness of a particular cleaning method was evaluated. The chemical cleaning method was found to be most effective, whereas the brush punching was least effective. When a fouled tube was kept dry, brush punching completely removed scales, indicating that surface wetness plays an important role in scale removal.
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Details
- Title
- Study of scale-removal methods in a double-pipe heat exchanger
- Creators
- Y I ChoR LiuW J McFarlandL FusegniDrexel Univ., Philadelphia, PA (US)
- Publication Details
- Heat transfer engineering, v 21(3), pp 50-57
- Publisher
- Hemisphere Publ Corp
- Number of pages
- 8
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Mechanical Engineering and Mechanics
- Web of Science ID
- WOS:000087262100008
- Scopus ID
- 2-s2.0-0003158736
- Other Identifier
- 991019170482804721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Engineering, Mechanical
- Mechanics
- Thermodynamics