GC: n
CT: Solar water heating collectors capture and retain heat from the sun and transfer this heat to a liquid. Solar thermal heat is trapped using the “greenhouse effect,” in this case is the ability of a reflective surface to transmit short wave radiation and reflect long wave radiation. Heat and infrared radiation (IR) are produced when short wave radiation light hits a collector’s absorber, which is then trapped inside the collector. Fluid, usually water, in contact with the absorber collects the trapped heat to transfer it to storage.
S: http://www.homepower.com/articles/solar-water-heating/basics/what-solar-water-heating (last access: 27 December 2014)
N: 1. solar (adj): mid-15c., “pertaining to the sun,” from Latin solaris “of the sun,” from sol “sun”. Meaning “living room on an upper story” is from Old English, from Latin solarium. Old English had sunlic “solar.”
water (n): Old English wæter, from Proto-Germanic watar (cognates: Old Saxon watar, Old Frisian wetir, Dutch water, Old High German wazzar, German Wasser, Old Norse vatn, Gothic wato “water”), from PIE wod-or, from root wed- “water, wet”.
heating (n): From heat (v.), Old English hætan “to heat; to become hot,” from Proto-Germanic haita-. Related: Heated (with many variants in Middle English); heating. Compare Middle Dutch heeten, Dutch heten, German heizen “to heat.”
2. A system for collecting and utilising solar energy for heating or pre-heating water, mainly for domestic purposes (domestic hot water).
3. In its most common form, a solar water heater uses a flat-plate collector with tubes fastened to the blackened flat plate. Water flows from a storage tank, passes through the tubes where it is heated, and returns to the tank. Hot water accumulates in the upper part of the tank, which is insulated to reduce heat losses.
4. solar water heater: term officially approved by the Lexicon Project Committee (New Brunswick).
S: 1. OED – http://www.etymonline.com/index.php?allowed_in_frame=0&search=solar&searchmode=none; http://www.etymonline.com/index.php?allowed_in_frame=0&search=water&searchmode=none; http://www.etymonline.com/index.php?term=heat (last access: 27 December 2014). 2. GDT. 3 & 4. TERMIUMPLUS.
SYN:
S:
CR: solar energy
