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Abstrakt
This study is focused on experimental investigation of a selected type of brazed plate heat exchanger (PHEx). The main aim of the paper was to experimentally check the ability of nanofluids to enhance the performance of PHEx. A typical water-Al2O3 nanofluid was tested and compared to that of the base fluid, i.e. water. Nanoparticles were tested at the concentration of 0.1% and 1% by weight. Impact of the 1 day and 3 days break of operation of the tested PHEx on its performance was of particular interest. Pressure drop in all runs was measured as well. The Wilson approach was applied in order to estimate average heat transfer coefficients for the PHEx passages. It was observed, that addition of nanoparticles resulted in deterioration of an overall heat transfer coefficient for the selected PHEx and tested conditions, i.e. temperature range and Reynolds number. Moreover, substantial increase of pressure drop was recorded after each break of operation of the tested PHEx.
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- Kategoria:
- Publikacja w czasopiśmie
- Typ:
- artykuły w czasopismach recenzowanych i innych wydawnictwach ciągłych
- Opublikowano w:
-
Applied Mechanics and Materials
nr 831,
strony 188 - 197,
ISSN: 1662-7482 - Język:
- angielski
- Rok wydania:
- 2016
- Opis bibliograficzny:
- Cieśliński J., Fiuk A., Miciak W., Siemieńczuk B.: Performance of a plate heat exchanger operated with water-Al2O3 nanofluid// Applied Mechanics and Materials. -Vol. 831., (2016), s.188-197
- Weryfikacja:
- Politechnika Gdańska
wyświetlono 144 razy
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