A resistance model of evaporation during sprinkling

✍ Scribed by Ido Seginer

• Publisher: Elsevier Science
• Year: 1970
• Weight: 402 KB
• Volume: 7
• Category: Article
• ISSN: 0002-1571
• DOI: 10.1016/0002-1571(70)90049-x

✦ Synopsis

A previous resistance model of sprinkler evaporation is expanded by considering two energy balance equations: one for the drops and another for the air layer where the evaporation takes place. To solve for the various fluxes, only the boundary conditions and the resistances of the system must be given. A comparison of calculations with experimental results, indicates good agreement for the limiting case of a wet surface with no drops in the air. The model predicts small spray evaporation under normal operating conditions. The effects of water temperature, fineness of spray and application rate on the evaporation losses may be significant, if the variation of any of these parameters is within wide limits.