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Elfin Core Technology | |
| Background |
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| For many years, the heat transfer industry has used conventional plate-fin block for many applications which has proved to be an acceptable low-cost option. However, conventional plate-fin construction methods have inherent drawbacks and limitations which inhibit innovation and freedom of design. During the early 1990's, work commenced on a new concept in extended surface technology. This patented process imparts certain unique advantages over conventional construction methods, enabling the heat exchanger manufacturer to gain technical superiority and excellence through innovation and choice. During subsequent years, Elfin has evolved from a manually finned, single tube product to an infinitely versatile multi-tube, multi-row block which is now produced using state-of-the-art CNC controlled finning machinery. Patents and Patent Improvements have been applied for and/or granted in all appropriate regions including Europe, North and South America, Far East etc. There is no other product on the market today that can match the versatility of Elfin at such an affordable cost. With successes in the marine, power generation, traction engine and chemical processing industries, we have only just begun to skim the surface of it’s capabilities. | |
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| What is Elfin? | |
| Elfin is a patented 'extended-surface tube' design which has been developed by Elfin Technology for today's demanding air-blast heat exchanger applications. The Elfin range of products, which is available in a wide variety of single-tube and multi-tube configurations, has been designed to offer outstanding levels of performance, durability and flexibility. Elfin consists of individual fins which are swaged onto the tubes with great precision using the Patented ElfinMaster finning machine, with each fin having a positional accuracy of just a few microns. The fins, which can be 'collared' or 'collarless' (exposing the primary surface to the airflow), have holes formed to be a precise interference fit with the tube, the resultant mechanical bond negating the need for any further bonding method such as bullet-expansion or brazing. This process imparts a level of flexibility not generally associated with finned heat exchanger tubes. Almost every aspect of the design can be optimised for the target application and environment. Elfin is probably the best extended surface technology in the world. A bold statement indeed but consider the basic facts: | |
| Why is Elfin better than…? | |
| …Brazed Block: …Bullet-Expanded (‘Flexpanded’) Block: | |
| See the Options page for a list of available sizes, shapes and materials etc. | |
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| Just imagine the possibilities... | |
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Very few limitations of size and material