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| Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
|---|---|
| Author | Forgia, Nicolas La Carlos, A. Dorao Fernandino, Maria |
| Copyright Year | 2016 |
| Abstract | The main objective of this work was to investigate the heat transfer characteristics of elongated bubbles in 0.5mm diameter mini-channels using R134a as working fluid. In particular to identify the contribution of the nucleate and film boiling to the heat transfer mechanism at low thermodynamical qualities. The measurements were performed in a glass test section with several diabatic and adiabatic regions. The adiabatic region was heated by Joule effect using an ITO coating as heater. The measurement of heat transfer coefficient for elongated bubbles without the presence of bubble nucleation were compared with the case with nucleation showing that heat transfer in elongated bubbles is only larger than the case with nucleation at very small heat fluxes. In addition, heat transfer coefficient showed a dependence with the thermodynamic quality. |
| Sponsorship | Fluids Engineering Division |
| File Format | |
| ISBN | 9780791850343 |
| DOI | 10.1115/ICNMM2016-7957 |
| Volume Number | ASME 2016 14th International Conference on Nanochannels, Microchannels, and Minichannels |
| Conference Proceedings | ASME 2016 14th International Conference on Nanochannels, Microchannels, and Minichannels collocated with the ASME 2016 Heat Transfer Summer Conference and the ASME 2016 Fluids Engineering Division Summer Meeting |
| Language | English |
| Publisher Date | 2016-07-10 |
| Publisher Place | Washington, DC, USA |
| Access Restriction | Subscribed |
| Subject Keyword | Glass Coatings Boiling Flow (dynamics) Nucleation (physics) Bubbles Fluids Heat Joules Flux (metallurgy) Film boiling Coating processes Heat transfer coefficients Heat transfer Refrigerants |
| Content Type | Text |
| Resource Type | Article |
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