Numerical model to estimate subcooled flow boiling heat flux and to indicate vapor bubble interaction
نویسندگان
چکیده
There are numerous technical applications where hot components, with uneven temperature distribution, require cooling. In such applications, it is desired to provide efficient local cooling of the spots, while avoiding unnecessary over-cooling other regions. Such an approach, known as precision cooling, has several advantages. addition fact that reduces effort for limits unintended heat lost medium. liquid cooled systems, Internal Combustion Engines (ICE), subcooled flow boiling offers immense potential The primary challenges in extracting this understanding complexities phenomenon and estimating risk encountering film boiling. present study introduces a numerical model estimate wall flux includes mechanistic formulation account vapor bubble interaction. interaction serves two purposes: (a) blends well-established models literature, one isolated bubbles regime fully developed regime, flux; (b) provides information limit order not encounter results from new validated different experiments literature estimated by agreement experimental responsive input parameters, bulk velocity, operating pressure inlet subcooling. requires only quantities hence implementation Computational Fluid Dynamics (CFD) straightforward.
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ژورنال
عنوان ژورنال: International Journal of Heat and Mass Transfer
سال: 2021
ISSN: ['1879-2189', '0017-9310']
DOI: https://doi.org/10.1016/j.ijheatmasstransfer.2021.121038