Crossword clues for refrigerant
The Collaborative International Dictionary
Refrigerant \Re*frig"er*ant\, n.
That which makes to be cool or cold; specifically, a medicine
or an application for allaying fever, or the symptoms of
fever; -- used also figuratively.
--Holland. ``A refrigerant
to passion.''
--Blair.
Refrigerant \Re*frig"er*ant\ (r?*fr?j"?r-ant), a. [L.
refrigerans, p. pr. of refrigerare: cf. F. r['e]frig['e]rant.
See Refrigerate.]
Cooling; allaying heat or fever.
--Bacon.
Douglas Harper's Etymology Dictionary
1590s, originally in medicine; from Latin refrigerans, present participle of refrigerare "make cool or cold, to cool down" (see refrigeration). As a noun from 1670s.
Wiktionary
a. That cools or freezes; allaying heat or fever. n. 1 A substance used in a heat cycle that undergoes a phase change between gas and liquid to allow the cooling, as in refrigerators, air conditioners, etc. 2 That which makes cool or cold, such as a medicine for allaying the symptoms of fever.
WordNet
adj. causing cooling or freezing; "a refrigerant substance such as ice or solid carbon dioxide" [syn: refrigerating]
n. a substance used to provide cooling (as in a refrigerator)
Wikipedia
A refrigerant is a substance or mixture, usually a fluid, used in a heat pump and refrigeration cycle. In most cycles it undergoes phase transitions from a liquid to a gas and back again. Many working fluids have been used for such purposes. Fluorocarbons, especially chlorofluorocarbons, became commonplace in the 20th century, but they are being phased out because of their ozone depletion effects. Other common refrigerants used in various applications are ammonia, sulfur dioxide, and non-halogenated hydrocarbons such as propane.
The ideal refrigerant would have favorable thermodynamic properties, be noncorrosive to mechanical components, and be safe, including free from toxicity and flammability. It would not cause ozone depletion or climate change. Since different fluids have the desired traits in different degree, choice is a matter of trade-off.
The desired thermodynamic properties are a boiling point somewhat below the target temperature, a high heat of vaporization, a moderate density in liquid form, a relatively high density in gaseous form, and a high critical temperature. Since boiling point and gas density are affected by pressure, refrigerants may be made more suitable for a particular application by choice of operating pressures.
Usage examples of "refrigerant".
Foyle attacked each weld in turn with acids, drills, thermite, and refrigerants.
Beyond the bulkhead he found emergency pod inlets, which would require a careful check, and the refrigerant storage quadrant he had met before.
Based on the number of employees, there are at least a half dozen pumps available, as well as a dozen or so recovery tanks for storage of recovered refrigerant.
Large-scale absorbers, that would be large enough to cool a fifty-story high-rise office building for example, are operated with water as the refrigerant, and lithium bromide (a strong salt solution) as the absorbent.
You take a spray canister of refrigerant, R-12 if you can still get it, what with the ozone hole and everything, or R-134a, and you spray it into the lock cylinder until the works are frozen.
The pinch point for expansion of refrigeration beyond the existing resources of Grantville is the development of new refrigerants for absorption and vapor compression refrigeration.
Sitting in a lead-lined coffin, probe one gurgled and pinged on a belly full of reaction mass and liquid water refrigerant.
So we are going to have to utilize some of the toxic or flammable refrigerants above to drive our industries, as was done in the past.
But in the long term, as the demand for the process grows, old refrigerants will have to be rediscovered, and the more toxic and dangerous refrigerants will be pushed to the front.
The letter and number codes of refrigerants have been set up over the years by the industry engineering association known as ASHRAE ("Ash-ray").
There are a lot of individual refrigerators in homes and businesses, so there is a long-term supply of both the cooling available in the refrigerators, and the refrigerants that are made available when units go out of service.
In fact, it is required by the Clean Air Act, which imposed fines and other penalties for the outright release of refrigerants to the atmosphere.
The amount of existing refrigerants, plus the collection of propane from the natural gas, gives us a strong candidate.
He listened to the murmur of ventilators and refrigerants and the click and buzz of servo-mechanisms.
It bubbled with released refrigerants and water began to condense on the outside.