This study reviewed the defrosting techniques applicable for the heating, ventilation, air-
conditioning, and refrigeration industry, including passive, active, and system techniques …

Most materials of practical interest are neither completely wetting nor completely non-
wetting.“Surface wettability” then refers to the degree that a surface is hydrophilic (ie water …

Vertical-fin microchannel heat exchanger has better frosting and defrosting performance
owing to its better water drainage along vertical fins. Effect of hydrophilic and …

Currently, microchannel heat exchangers (MCHXs) are widely employed in refrigeration and
heat pump systems due to their advantages of being more efficient, smaller in size, lower …

Defrosting operation is always used to solve its frosting problem at a high humidity
environment for air source heat pump units (ASHPs), and at the end of defrosting operation …

Frost formation on louvered fin microchannel heat exchangers was experimentally
investigated in this paper with the aim of studying the effect of hydrophilic and hydrophobic …

The conventional duct air conditioner typically uses an A-type heat exchanger for indoor
units, which has poor drainage behavior under wet conditions. In this research, a C-type …

Abstract Effect of microgroove geometry on the frost formation and frost melt-water drainage
is experimentally investigated on a number of aluminum surfaces. Condensation and frost …

Polymer heat exchangers have gained interest due to their favourable qualities over metal
heat exchangers, including being lightweight, low cost, and having reduced fouling and …

To investigate the impact of defrosting-water retention on the surface of heat exchangers of
the air source heat pump (ASHP) performance during frosting–defrosting cycles, an …