Mathematical model of heat transfer within droplet during spray cooling of water

• Autorzy: Fic A. , Kozioł J. , Skorek J.
• Języki publikacji: EN

Abstrakty

EN

The mathematical model of spray cooling of water is the subject of the paper. The model assumes the spherial shape of droplets with the same diameter. The interactions among droplets are neglected. Temperature and humidity of atmosheric air have been assumed to be constant. It is also assumed that evaporation of water has the surface character only. The convection haet transfer between droplets and atmospheric air has been taken into account in the model. Results of calculations of the temperature field and the process of evaporation of droplet during its movement in air are presented in the paper. Based on the results of calculations, the influence of the most important parameters ( temperature and humidity of air, initial temperature and velocity of droplet and its diameter) on the decrease of the average temperature and on the mass drop of the water caused by evaporation has been analysed in the paper.

Słowa kluczowe

EN

heat transfer; spray cooling

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2001
• Tom: Vol. 22, nr 3-4
• Strony: 69--76
• Opis fizyczny: Bibliogr. 6 poz.,Rys., tab.,

Twórcy

autor

Fic A.

autor

Kozioł J.

autor

Skorek J.

• Institute of Thermal Technology, Technical University of Silesia, Konarskiego 18, 44-100 Gliwice .

Bibliografia

• [1] SYNAL A.: Water management in industry, Student textbook of Silesian University of Technology, No. 373/72 (in Polish)
• [2] HOBLER T.: Motion of heat and heat exchangers, WNT, Warszawa 1986 (in Polish).
• [3] BENETT C. O., MYERS J. E.: Transport of momentum, heat and mass, WNT, W-wa 1967 (in Polish).
• [4] SZARGUT J. (Ed.): Numerical modelling of temperature fields, WNT, W-wa, 1992 (in Polish).
• [5] BERMAN L.D. et al.: Heat transfer from steam-air mixture to dispersed water jet, Teploeniergietika 12, 1981 (in Russian).
• [6] STANISZEWSKI B.: Heat tranfer - theoretical foundations, PWN, Warszawa 1979 (in Polish).