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Experimental studies on the effect of the enhancemet of the heating surface on the heat transfer coefficient for boiling in closed volume
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Title: Experimental studies on the effect of the enhancemet of the heating surface on the heat transfer coefficient for boiling in closed volume

Creator:

Grabowski, Mirosław ; Błachnio, Ewelina

Date:

2018

Type:

artykuł w czasopiśmie

Description:

This article presents the results of experimental research on the effect of enhancing the heating surface on the heat transfer coefficient for boiling in a closed volume of ethyl alcohol and isopropyl alcohol. The aim of the research was determination of impact heat surfaces enhancements by applying circular cavities on heat transfer coefficient and on vapor structures formation during boiling. The study involved three brass samples with diameters equal to 50 mm, with different enhancements of the heating surface by drilled blind cavities. The research include investigation of sample without cavities, sample with 133 circular cavities of diameter of 2 mm and sample with 61 circular cavities of diameter of 3 mm. On the basis of the research, the influence of the investigated heat exchange surface enhancement on the intensity of heat exchange was determined. Own interface in the LabView environment for controlling and acquiring measurement data was developed. The boiling process was recorded with a high-speed camera, and based on the obtained video images, the recorded images were analyzed to determine the void fraction. The heat flux density, heat transfer coefficient were calculated and comparative diagrams of the obtained measurement results were made

Publisher:

Publishing House of the Koszalin University of Technology

Format:

application/pdf

Identifier:

oai:dlibra.tu.koszalin.pl:1576

Language:

eng

Is part of:

Journal of Mechanical and Energy Engineering. Vol.2 (42), nr 2, s. 121-130

Rights:

Biblioteka Politechniki Koszalińskiej

Access rights:

internet

License:

Creative Commons BY 4.0

Exlibris

Subject and keywords:

boiling boiling on enhanced surfaces heat transfer coefficient intensification of heat exchange LabView

Object collections:

Last modified:

Nov 6, 2023

In our library since:

Jul 8, 2022

Number of object content hits:

25

All available object's versions:

https://dlibra.tu.koszalin.pl/publication/1580

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Edition name Date
Grabowski, Mirosław, 2018, Experimental studies on the effect of the enhancemet of the heating surface on the heat transfer coefficient for boiling in closed volume Nov 6, 2023

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