Title:

An investigation of heat transfer coefficient during refrigerants condensation in vertical pipe microchannel

Creator:

Bohdal, Tadeusz ; Kruzel, Marcin ; Sikora, Małgorzata

Subject:

heat transfer coefficient ; pressure drop ; heat flux density ; microchannel ; vapor quality

Description:

This article presents the results of experimental research of R404A, R407C and R410A high-pressure refrigerants condensation in vertical pipe microchannels with an internal diameter dw below 1 mm. The study determined the local and average heat transfer coefficient in the full range of vapor quality, x = 1-0. On the basis of experimental investigations, the dependence of heat transfer coefficient on the vapor quality x, the mass flux density G and the channel internal diameter dw was obtained.

Place of publishing:

Koszalin

Publisher:

Publishing House of the Koszalin University of Technology

Date:

2017

Type:

artykuł w czasopiśmie

Format:

application/pdf

Language:

eng

Is part of:

Journal of Mechanical and Energy Engineering. Vol.1 (41), nr 2, s. 163-170

Rights:

Biblioteka Politechniki Koszalińskiej

Access rights:

internet

License:

Creative Commons BY 4.0