Experimental Study of Heat Transfer Enhancements from Array of Alternate Rectangular Dwarf Fins at Different Inclinations
| Autor: | Ashok T. Pise, Umesh Vandeorao Awasarmol |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Convection
Natural convection Materials science Fin 020209 energy Mechanical Engineering Heat transfer enhancement Enhanced heat transfer Aerospace Engineering Ocean Engineering 02 engineering and technology Mechanics Radiation 01 natural sciences Nusselt number Industrial and Manufacturing Engineering 010305 fluids & plasmas 0103 physical sciences Heat transfer 0202 electrical engineering electronic engineering information engineering |
| Zdroj: | Journal of The Institution of Engineers (India): Series C. 99:125-131 |
| ISSN: | 2250-0553 2250-0545 |
| DOI: | 10.1007/s40032-017-0383-9 |
| Popis: | The main objective of this experimental work is to investigate and compare heat transfer enhancement of alternate dwarf fin array at different angles of inclination. In this study, the steady state heat transfer from the full length fin arrays and alternate dwarf fin arrays are measured in natural convection and radiation environment. Largest increase in the Nusselt number was achieved with alternate dwarf fin at angle of orientation 90°, which shows about 28% enhanced heat transfer coefficient as opposed to the full-length fin array with 25% saving in material. In case of non-black FAB, contribution of radiation heat transfer is found to be very small nearly within 1% of the heater input. After coating lamp black contribution of radiation heat transfer is found to increase to about 3–4% of the heater input in the range of temperatures considered in this study. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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