| see Net Effective Temperature.
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| A chemical agent used in etching.
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| The art of producing designs on metal or glass by the use of the corrosive action of an acid; the use of acid to cut lines into metal or remove the surface of concrete.
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| Chemically treated nails to improve their holding power in wood framing.
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| Low temperature application refrigerant.
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| Alcohol.
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| Rapid evaporating solvent made from ethyl alcohol and acetic acid.
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| Alcohol produced by the distillation of fermented grain.
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| Toxic refrigerant now seldom used.
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| A solvent made by a reaction between ethyl alcohol and lactic acid.
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| Plastics based on resins made by the polymerization of ethylene or copolymerization of ethylene with one or more other unsaturated compounds.
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| A single-ply membrane of synthetic rubber, usually black or white, highly resistant to damage from ozone, ultraviolet radiation, weathering and abrasion; resists contamination from acids, alkalis, animal and vegetable oils, and oxygenated solvents such as ketones, esters, and alcohols; can be loosely laid, ballasted, or fully adhered.
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| Environmental Tobacco Smoke.
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| The composition within a system of two or more components which, on heating under specific conditions, develops sufficient liquid to cause deformation at minimum temperature.
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| Freezing temperature for eutectic solutions.
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| 1. A group of materials that melt at low temperatures, absorbing large quantities of heat and then, as they recrystallize, release that heat. 2. One method used for storing solar energy.
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| That certain mixture of two substances providing lowest melting temperature of all the various mixes of the two substances.
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| Removal of air, gas, and moisture from a refrigeration or air conditioning system.
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| To pass off in vapor; to change a liquid into vapor or gas.
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| Time interval for complete evaporation of all solvents.
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| Time interval during which low boiling solvent evaporates completely.
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| Rate at which a solvent evaporates.
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| 1. The change of a liquid to a gas below the boiling point; heat is absorbed in this process. 2. Loss of water to the atmosphere; one concerning plumbers is the loss of drainage trap seal by the evaporation of the trap water.
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| Device which uses open spray or spill water to cool a condenser; evaporation of some of the water cools the condenser water and rces water consumption.
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| A process in which outside air is pre-cooled before passing through a space; this is done by first passing the air through a layer of wet material, from which water is evaporated, increasing the water content of the air (latent heat), and rcing its dry-bulb temperature (sensible heat).
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| Fan which increases airflow over the heat exchange surface of evaporators.
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| Automatic pressure regulating valve mounted in suction line between evaporator outlet and compressor inlet; its purpose is to maintain a predetermined pressure and temperature in the evaporator.
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| Evaporator in which the refrigerant is in the liquid droplet form.
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| Evaporator containing liquid refrigerant at all times.
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| Part of a refrigerating mechanism in which the refrigerant vaporizes and absorbs heat.
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