Heat-pipe
41Downhole heat exchanger — Bottom end of a Downhole heat exchanger …
42Direct exchange geothermal heat pump — A direct exchange (DX) geothermal heat pump system is a geothermal heat pump system in which the refrigerant circulates through copper tubing placed in the ground. The refrigerant exchanges heat directly with the soil through the walls of the… …
43Smoking pipe (tobacco) — This article is about pipes used for smoking tobacco. For information about the practice of pipe smoking, see Pipe smoking. Parts of a pipe include the (1) bowl, (2) chamber, (3) draught hole, (4) shank, (5) mortise, (6) tenon, (7) stem, (8) bit… …
44Concentric tube heat exchanger — Concentric Tube (or Pipe) Heat Exchangers are used in a variety of industries for purposes such as material processing, food preparation and air conditioning.[1] They create a temperature driving force by passing fluid streams of different… …
45Steam pipe — Steam Steam (st[=e]m), n. [OE. stem, steem, vapor, flame, AS. ste[ a]m vapor, smoke, odor; akin to D. stoom steam, perhaps originally, a pillar, or something rising like a pillar; cf. Gr. sty ein to erect, sty^los a pillar, and E. stand.] 1. The… …
46Water pipe percolator — A water pipe percolator is a small additional sub chamber within the main chamber of a water pipe that provides in line smoke water interaction via heat exchange and dissolution.Function and PurposeA percolator works by utilizing a pressure… …
47Air source heat pumps — An air source heat pump is a type of heat pump which use the outside air as a heat source or heat sink to heat or cool an interior space. Air source heat pumps are more efficient than oil, gas, and electric resistance heating in mild climates… …
48Convective heat transfer — See also: Heat transfer and convection This figure shows a calculation for thermal convection. Colors closer to red are hot areas and colors closer to blue are cold areas. In this figure, a hot, less dense lower boundary layer sends plumes… …
49Smoking pipe — A pipe is a tool used for smoking. The designs of pipes vary considerably, but for the most part they are reusable and consist of a chamber, or bowl, in which the substance to be smoked is placed, a stem of some sort and a mouthpiece through… …
50Opium pipe — Opium vaporization paraphernalia: An opium pipe, an opium lamp, spare pipe bowls, and other implements lie arranged on a layout tray; a second opium pipe rests nearby. An opium pipe is a pipe designed for the vaporization and inhalation of opium …
