12 Facts About Heat pipe

The heat pipe is partially filled with a working fluid and then sealed.

The working fluid mass is chosen so that the heat pipe contains both vapor and liquid over the operating temperature range.

Second, compared to a one-dimensional tubular heat pipe, the width of a two-dimensional heat pipe allows an adequate cross section for heat flow even with a very thin device.

Loop heat pipe is a passive two-phase transfer device related to the heat pipe.

The Heat pipe is arranged in a serpentine pattern in which freely moving liquid and vapor segments alternate.

Related searches

When one end of the heat pipe is heated, the working fluid inside the pipe at that end vaporizes and increases the vapor pressure inside the cavity of the heat pipe.

Vapor pressure over the hot liquid working fluid at the hot end of the pipe is higher than the equilibrium vapor pressure over the condensing working fluid at the cooler end of the pipe, and this pressure difference drives a rapid mass transfer to the condensing end where the excess vapor condenses, releases its latent heat, and warms the cool end of the pipe.

In practice, the speed of the vapor through the heat pipe is limited by the rate of condensation at the cold end and far lower than the molecular speed.

Ethane is used when the heat pipe must operate at temperatures below the ammonia freezing temperature.

The heat pipe is an aluminium extrusion, similar to that shown in the first figure.

The high effective conductivity of the heat pipe reduces the cooking time for large pieces of meat by one-half.

Device consists of a battery of multi-row finned heat pipe tubes located within both the supply and exhaust air streams.