Study of the Evaporation Process in the Spray Zone of a Mechanical Draft Wet Cooling Tower


  • Dany Iman Santoso Universitas Negeri Surabaya
  • Bambang Antoko Politeknik Perkapalan Negeri Surabaya
  • Prabowo Prabowo Institut Teknologi Sepuluh Nopember
  • Djatmiko Ichsani Institut Teknologi Sepuluh Nopember



evaporation process, nozzle spray, cooling tower, droplet level, heat and mass transfer.


The evaporation process in the nozzle spray system of a cooling tower was the main object of study in order to determine its performance. This process involves liquid water in small size, usually at the droplet level. At this level, parameters that affect the droplet size, such as capacity, air velocity in the chamber, water pressure at the nozzle, atmospheric temperature, etc., influence the process of heat and mass transfer. In this study, capacity and fan rotation were varied to obtain a graph showing the evaporation. Radius, velocity, mass and temperature graphs and rate graphs were obtained from mathematical modeling of the governing equations. From the results it appears that evaporation occurs at a capacity of 6 liter per minute and above, but this requires further proof of the evaporation process along with the height of the tower, which will be the subject of a future study.

Author Biographies

Dany Iman Santoso, Universitas Negeri Surabaya

Scopus ID: 57193699654

Bambang Antoko, Politeknik Perkapalan Negeri Surabaya

Scopus ID: 57193688692

Prabowo Prabowo, Institut Teknologi Sepuluh Nopember

Scopus ID: 56012282000

Djatmiko Ichsani, Institut Teknologi Sepuluh Nopember

Scopus ID: 56012496600


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