Additive Adsorption and Interfacial Characteristics of Nucleate Pool Boiling in Aqueous Surfactant Solutions

Interfacial phenomena and ebullient dynamics in saturated nucleate pool boiling of aqueous solutions of three surfdctants that have different molecular weight and ionic nature are experimentally investigated. The additive molecular mobility at interfaces manifests in a dynamic surface tension behavior (surfactant adsorption-desorption at the liquid-vapor interface), and varying surface wetting (contact angle) with concentration (surfactant physisorption at the solid-liquid interface). This tends to change, enhance, and control the boiling behavior significantly, and an optimum heat transfer enhancement is obtained in solutions at or near the critical micelle concentration (CMC) of the surfactant

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