Study of Drop-Stream Condensation by the Gradient Heatmetry

E. R. Zainullina; Зайнуллина Э. Р.; V. Yu. Mityakov; Митяков В. Ю.

doi:10.31857/S0040364423040178

Study of Drop-Stream Condensation by the Gradient Heatmetry

Authors: Zainullina E.R.¹, Mityakov V.Y.¹
Affiliations:
1. Peter the Great St. Petersburg Polytechnic University
Issue: Vol 61, No 5 (2023)
Pages: 730-735
Section: Heat and Mass Transfer and Physical Gasdynamics
URL: https://rjsvd.com/0040-3644/article/view/653075
DOI: https://doi.org/10.31857/S0040364423040178
ID: 653075

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Abstract

The capabilities of flow visualization and gradient heatmetry are combined for the first time in studying heat transfer during condensation. The local heat flux per unit area during drop-stream condensation of water steam on the surface of a vertical plate was measured. In the drop-stream condensation mode, the average value of a significantly unsteady heat flux was about 31.2 kW/m2. The heat flux unsteady shows a complex physical picture of condensation. The results of the experiment revealed the possibility of using gradient heatmetry as a method for monitoring heat transfer during condensation.

About the authors

E. R. Zainullina

Peter the Great St. Petersburg Polytechnic University

Email: zaynullinaelza@gmail.com
St. Petersburg, Russia

V. Yu. Mityakov

Peter the Great St. Petersburg Polytechnic University

Author for correspondence.
Email: zaynullinaelza@gmail.com
St. Petersburg, Russia

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