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Full Description
Frosting for Air Source Heat Pumps: Research, Case Studies, and Methods provides a comprehensive accounting of the latest research, analysis, and modeling methods for limiting frosting and maximizing efficiency. The book begins by outlining the fundamentals of frosting mechanisms, including the condensation and freezing of water droplets. It then provides a wide range of case studies that showcase a variety of surfaces, conditions, and energy generation technologies. Finally, the last chapters demonstrate modeling and analysis of frosting operation before laying out critical considerations for designing a frost control strategy in ASHPs.
Building on the theory and studies contained in the author's previous work Defrosting for Air Source Heat Pumps, this book provides essential and advanced information for understanding and controlling frosting for these sustainable energy sources.
Contents
1. Introduction
2. Freezing of sessile non-deformed water droplet under natural convection at early frosting stage in an ASHP unit
3. Freezing of sessile deformed water droplet under natural convection at early frosting stage in an ASHP unit
4. Frosting on surface of horizontal cold plate under natural convection in an ASHP unit
5. Frosting on surface of non-horizontal cold plate under natural convection in an ASHP unit
6. Frosting on surface of horizontal cold flat plate under forced convection in an ASHP unit
7. Measurement and calculation of frost characteristics on cold surfaces
8. Experimental study of frosting on surface of finned tube heat exchangers in an ASHP unit
9. Numerical study of frosting on surface of finned tube heat exchanger in an ASHP unit
10. Frosting on surface of micro-channel heat exchanger in an ASHP unit
11. Reverse cycle defrosting for multi-circuit outdoor coil in an ASHP unit
12. Conclusions and future work
