Dissipation in cone-jet electrosprays and departure from isothermal operation.
basic_science · Level V
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- Record sourced from PubMed, PMID 31330606.
- Also identified by DOI 10.1103/PhysRevE.99.061101.
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Abstract
Electrospraying in the cone-jet mode has being regarded an isothermal process, and the laws obtained under this assumption are considered valid throughout the operational range. However, self-heating due to dissipation is expected to be significant at sufficiently high electrical conductivities. This is confirmed by solving the isothermal leaky-dielectric model to evaluate the Ohmic and viscous dissipation, and estimate the temperature increase. Self-heating is important at conductivities ≳0.05S/m, increases rapidly at larger values, and requires the nonisothermal modeling of this regime.