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International Journal of Energy for a Clean Environment
SJR: 0.195 SNIP: 0.659 CiteScore™: 1.2

ISSN Druckformat: 2150-3621
ISSN Online: 2150-363X

International Journal of Energy for a Clean Environment

Formerly Known as Clean Air: International Journal on Energy for a Clean Environment

DOI: 10.1615/InterJEnerCleanEnv.2015015680
pages 247-256

EXPERIMENTAL INVESTIGATION OF THE PHENOMENON OF FROST FORMATION ON CRYOGENIC SURFACES

Y. Dong
The Key Laboratory of Heat Transfer and Energy Conversion, Ministry of Education of PRC, Beijing University of Technology, Beijing 100124, China
Zhongliang Liu
Key Laboratory of EHTEC, Ministry of Education and Key Laboratory of Heat Transfer and Energy Conversion, Beijing Education Commission, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100022, China
Y. Li
The Key Laboratory of Heat Transfer and Energy Conversion, Ministry of Education of PRC, Beijing University of Technology, Beijing 100124, China

ABSTRAKT

An experimental system for frost formation at a very low surface temperature and under natural convection conditions was set up and a series of frost deposition experiments were conducted under various environmental conditions. The wall temperature can be as low as −191.3°C. The influence of wall temperature, air temperature, humidity, and surface characteristics on the initial frost formation and the shape of crystals is investigated. Compared with the frost formation at a low wall temperature, the liquid air was first observed on the cryogenic surface before frost crystals formed, and this phenomenon was firstly found in frosted fields.


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