Experimental Investigation of the Change in Temperature at the Center of a Water Droplet in the Process of Evaporation in Heated Air

Результат исследований: Материалы для журналаСтатья

Выдержка

The paper presents the results of an experimental investigation of the change in the temperature at the interface between water and a thermocouple junction (of diameter 1 mm) in a droplet (initial radius 1.5–3 mm) in the process of heating and evaporation of the latter in an air stream (of temperature 350–800 K at the velocity of motion 0.1–3.5 m/s). The lifetimes of droplets (of their complete evaporation) have been determined. It is shown that the temperature at the droplet center changes by no more than 10 K in the process of evaporation at gas temperatures of less than 500 K. At higher temperatures of the external gas medium the droplet is heated intensely (the temperature field is homogeneous).

Язык оригиналаАнглийский
Страницы (с-по)1-5
Число страниц5
ЖурналJournal of Engineering Physics and Thermophysics
DOI
СостояниеПринято/в печати - 13 июн 2016

Отпечаток

Evaporation
evaporation
air
Air
water
Water
thermocouples
gas temperature
Temperature
temperature
temperature distribution
life (durability)
Thermocouples
heating
radii
Gases
gases
Temperature distribution
Heating

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Engineering(all)

Цитировать

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keywords = "evaporation, heat flux, heated air, thermal conductivity, water droplet",
author = "Arkadiy Vladimirovich Zakharevich and Kuznetsov, {G. V.} and Strizhak, {P. A.}",
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AU - Zakharevich, Arkadiy Vladimirovich

AU - Kuznetsov, G. V.

AU - Strizhak, P. A.

PY - 2016/6/13

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N2 - The paper presents the results of an experimental investigation of the change in the temperature at the interface between water and a thermocouple junction (of diameter 1 mm) in a droplet (initial radius 1.5–3 mm) in the process of heating and evaporation of the latter in an air stream (of temperature 350–800 K at the velocity of motion 0.1–3.5 m/s). The lifetimes of droplets (of their complete evaporation) have been determined. It is shown that the temperature at the droplet center changes by no more than 10 K in the process of evaporation at gas temperatures of less than 500 K. At higher temperatures of the external gas medium the droplet is heated intensely (the temperature field is homogeneous).

AB - The paper presents the results of an experimental investigation of the change in the temperature at the interface between water and a thermocouple junction (of diameter 1 mm) in a droplet (initial radius 1.5–3 mm) in the process of heating and evaporation of the latter in an air stream (of temperature 350–800 K at the velocity of motion 0.1–3.5 m/s). The lifetimes of droplets (of their complete evaporation) have been determined. It is shown that the temperature at the droplet center changes by no more than 10 K in the process of evaporation at gas temperatures of less than 500 K. At higher temperatures of the external gas medium the droplet is heated intensely (the temperature field is homogeneous).

KW - evaporation

KW - heat flux

KW - heated air

KW - thermal conductivity

KW - water droplet

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