refinaryrig

دیکشنری تخصصی مهندسی نفت - نسخه آنلاین


بزرگترین دیکشنری مهندسی نفت با بیش از 20 هزار کلمه ، مصور و با قابلیت تلفظ



نمایش نتیجه 1 تا 10 از 17 نتیجه یافت شده برای boiling point:
n: any distillation made in accordance with ASTM procedure. Generally refers to a distillation test to determine the initial boiling point, the temperature at which percentage fractionations of the sample are distilled, the final boiling point, and quantity of residue.

n: a mixture of liquids that distills without a change in composition. The azeotropic mixture exhibits a constant maximum or minimum boiling point, which is either higher or lower than that of its components.

n: the temperature at which the vapour pressure of a liquid becomes equal to the pressure exerted on the liquid by the surrounding atmosphere. The boiling point of water is 212ᄚF or 100ᄚC at atmospheric pressure (14.7 pounds per square inch gauge or 101.325 kilopascals).

the temperature at which the vapor pressure of the liquid is equal to the pressure exerted on it by the surrounding atmosphere.
نقطه ی جوش

n: the metric scale of temperature measurement used universally by scientists. On this scale, O represents the freezing point of water and 100. its boiling point at a barometric pressure of 760 mm. Degrees Celsius are converted to degrees Fahrenheit by using the following equation: ᄚF = 9/5 (ᄚC) + 32. The Celsius scale was formerly called the centigrade scale;now, however, the term Celsius" is preferred in the International System of Units (SI).

n: 1. portion or fraction of hydrocarbons that have been separated according to boiling point or gravity. 2. the line of demarcation on the measuring scale made by the material being measured.

the fraction of a fluid in a mixture of fluids.
غش

n: a temperature scale devised by Gabriel Fahrenheit, in which 32. represents the freezing point and 212. the boiling point of water at standard sea-level pressure. Fahrenheit degrees may be converted to Celsius degrees by using the following formula: �C = 5/9 (�F-32).

n pi: 1. the parts of a hydrocarbon mixture that have the highest boiling point and the highest viscosity (such as fuel oils and waxes). 2. hexanes and heptanes in a natural gas stream.

n: a method of thermal recovery in which water at the boiling point is injected into a formation to lower the viscosity of the oil and allow it to flow more freely toward producing wells. Although generally less effective than steam injection because of lower heat, hot waterflooding may be preferable under certain conditions, such as formation sensitivity to fresh water or high pressures.

n pi: organic compounds of hydrogen and carbon whose densities, boiling points, and freezing points increase as their molecular weights increase. Although composed of only two elements, hydrocarbons exist in a variety of compounds, because of the strong affinity of die carbon atom for other atoms and for itself. The smallest molecules of hydrocarbons are gaseous;the largest are solids. Petroleum is a mixture of many different hydrocarbons.
هیدروکربورها

n: an extremely poisonous compound of hydrogen, carbon, and nitrogen (HCN),with a boiling point of 79�F (26�C) and having the odour of bitter almonds. It is water-soluble in all proportions. Also called formonitrile, hydrocyanic acid. or prussic acid.


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