Dynamic frosting characteristics on cold flat surface in different air temperature and humidity conditions

Author

Guo, Qingci ; Wang, Wei ; Lu, Weipeng ; Feng, Yingchao ; Zhang, Furong

Author_Institution

Coll. of Archit. & Civil Eng., Beijing Univ. of Technol., Beijing, China

fYear

2011

fDate

15-17 July 2011

Firstpage

5748

Lastpage

5751

Abstract

In this paper, the dynamic frosting characteristics on cold flat surface in different air temperature and humidity conditions are investigated numerically. The variation range of air temperature and relative humidity are respectively -10~10°C and 50%~90%, which is the most common frosting condition. The simulation results of frosting characteristics including the parameters of frosting rate, frost thickness, frost density, thermal conductivity of frost layer, frost surface temperature and heat flux variation with the frosting time. These results provide valuable references to design suitable defrost control strategies for air source heat pump used in different areas.

Keywords

air conditioning; atmospheric temperature; heat pumps; humidity; ice; thermal conductivity; air source heat pump; air temperature; defrost control strategies; dynamic frosting characteristics; frost surface temperature; heat flux variation; relative humidity; temperature -10 degC to 10 degC; thermal conductivity; Atmospheric modeling; Heat transfer; Heating; Humidity; Surface treatment; Temperature; Thermal engineering; air temperature; frosting characteristics; frosting conditions; relative humidity;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on

Conference_Location

Hohhot

Print_ISBN

978-1-4244-9436-1

Type

conf

DOI

10.1109/MACE.2011.5988337

Filename

5988337