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Experimental investigation on frequency pulsation effects on a single pass plate heat exchanger performance.
- Source :
-
Heat Transfer . May2022, Vol. 51 Issue 3, p2688-2701. 14p. - Publication Year :
- 2022
-
Abstract
- This paper investigates combined heat transfer improvement methods. These methods include introducing pulsating flow, adding nanofluids, and manipulating the flow's characteristics in a corrugated plate heat exchanger. Tests are carried out with multi‐walled carbon nanotube (MWCNT), graphene nanoplate (GNP), and a mixture of GNP and MWCNT meeting the requirement of 0.01% nanofluids volume fraction and exposed to pulsation. Results demonstrated that the use of pulsating frequencies from 0 to 30 Hz of GNP‐water, MIX nanofluids–water, and MWCNT–water nanofluids with a constant concentration of 0.01 wt% leads to a significant improvement in heat transfer. Using pure water at frequency f = 0 Hz as a benchmark, the Nusselt number of the mixture nanofluid increases by 15.2%, 27.5%, 40.4%, and 52.8% with the increase of frequency pulsation from 0 to 30 Hz with a slight effect on the pressure‐drop at this low used constant nanofluid concentration = 0.01%. The highest Nusselt number value for GNP‐water nanofluid improved by an amount of 58.3% at the highest frequency compared with pure water at f = 0 Hz. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 26884534
- Volume :
- 51
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Heat Transfer
- Publication Type :
- Academic Journal
- Accession number :
- 156083883
- Full Text :
- https://doi.org/10.1002/htj.22420