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Abstract
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 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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- Category:
- Conference activity
- Type:
- publikacja w wydawnictwie zbiorowym recenzowanym (także w materiałach konferencyjnych)
- Title of issue:
- XXII International Symposium : Research- Education- Technology ; $th International conference : Low Temperature and Waste Heat Use in communal and Industrial Energy Supply Systems strony 164 - 165
- Language:
- English
- Publication year:
- 2015
- Bibliographic description:
- Cieśliński J., Fiuk A., Miciak W., Siemieńczuk B.: Performance of a plate heat exchanger operated with water-Al2O3 nanofluid// XXII International Symposium : Research- Education- Technology ; $th International conference : Low Temperature and Waste Heat Use in communal and Industrial Energy Supply Systems/ ed. S. Smoleń Bremen: City University of Applied Sciences Bremen J.R. Mayer – Institut für Energietechnik, 2015, s.164-165
- Verified by:
- Gdańsk University of Technology
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