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Erschienen in:
2021 | OriginalPaper | Buchkapitel
1. Introduction
verfasst von : Fabio Toshio Kanizawa, Gherhardt Ribatski
Erschienen in: Flow boiling and condensation in microscale channels
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Abstract
This chapter describes a short historical background concerning the literature focused on multiphase flow and heat transfer during phase change processes. It also addresses the advantages and challenges of modelling and analyzing processes of fluid flow and heat transfer with more than one phase.
Subsequently, the advantages and drawbacks of using microscale heat management devices are addressed along the chapter, showing that the same heat transfer rate can be dissipated or absorbed with much lower refrigerant mass and heat exchanger area, maintaining the pumping power.
The characteristics of typical working fluids, as well as fluids with potential to be used in these types of equipment, are also discussed.
After finishing this chapter, the student should be able to identify conditions where multiphase flows are present, and will have learned how to recognize the main aspects responsible for differing heat transfer with phase change from single-phase convection.