 |
Ads |
|
|
|
|
Flow Indication & Control |
|
|
|
Flowmeter Directory Terminology and Glossary |
|
Flow Meter Directory.com is the most comprehensive web portal on flow meter technology, manufacturers, suppliers, and system designers. The site contains both commercial and non-commercial information on flow meter types, manufacturers, suppliers, articles and technology. We always welcome useful user input.
Built entirely in html, for your convenience, with no cumbersome registration processes, we offer a fast way to find the flow meter you are looking for |
|
 |
 |
Some HHO Useful Terms
Electrolysis: When a direct current is passed through a liquid which contains ions (an electrolyte), chemical changes occur at the two electrodes; usually a separation of oxygen from hydrogen or other substances it is chemically bonded with. In our case the process of splitting water into hydrogen and oxygen.
read more>> |
|
|
 |
BOILER TERMINOLOGY
Advanced Boiler Efficiency & Water Treatment - knowledge to overcome the issues that arise with regards to boiler water systems involving aspects of boiler water chemistry, advanced options in pre-treatment and internal treatment, various water treatment strategies using appropriate international water quality standards and codes, strategic techniques in controlling water chemistry and the measures to optimise boiler efficiency and operation
read more>> |
|
|
 |
PALM OIL GLOSSARY
Straight or singles oils/ fats may not be able to satisfy the complexity of a technical specification desired by a particular product application. By blending or rather mixing 2 or more straight or modified oils and fats the the correct balance of properties such as its melting point,the plastic range, the color, the texture and iodine value can be produced or obtained
read more>> |
|
|
 |
ENGINE TERMS
AC induction motor -class of motors that derives its name from the fact that current is induced into the rotor windings without any physical connection with the stator windings (which are directly connected to an AC power supply); adaptable to many different environments and capable of providing considerable power as well as variable speed control
read more>> |
|
|
 |
TOTALIZERS AND ODOMETERS
The similarity between the Odometer and the flow meter totalizer Fig 5 shows the total amount of cubic meters consumed by a home user. In the above case it is 2983 M3. This information is useful to a domestic water supplier billing department because their job is normally to bill the consumer for the actual amount of water he has used irrespective of what hour of the day he used it.
read more>> |
|
|
 |
AVIATION TERMS GENERAL AVIATION
Portion of civil aviation which encompasses all facets of aviation except air carriers holding a certificate of public convenience and necessity from the Civil Aeronautics Board and large aircraft commercial operators. Includes 92% of U.S. aircraft and more than 65% of U.S. flight hours flown by other than major and regional airlines or the military. Often misunderstood as only small, propeller-driven aircraft. Even a large jet or cargo plane operated under FAR Part 91 can be a general aviation aircraft.
read more>> |
|
|
 |
FUEL AND OIL TERMS
Emulsion: A liquid mixture of two or more liquid substances not normally dissolved in one another, one liquid held in suspension in the other. Water-in-oil emulsions have water as the internal phase and oil as the external, while oil-in-water have oil as the internal phase and water as the external
read more>> |
|
|
 |
Dielectric Constants of Common Materials
Measure of the ability of a dielectric material to store electrical potential energy under the influence of an electric field, measured by the ratio of the capacitance of a condenser with the material as the dielectric to its capacitance
read more>> |
|
|
 |
NATURAL GAS TERMS
Emulsion: A liquid mixture of two or more liquid substances not normally dissolved in one another, one liquid held in suspension in the other. Water-in-oil emulsions have water as the internal phase and oil as the external, while oil-in-water have oil as the internal phase and water as the external
read more>> |
|
|
 |
SENSOR AND SENSORS TERMINOLOGY
Hysteresis - A characteristic of materials, sensors and sometimes instruments to make their behavior dependent on the immediate history to which they have been subjected. Typically the final settling point is different when approached from above to when it is approached from below
read more>> |
|
|
 |
LUBRICATION TERMS
Atomic absorption spectroscopy -- measures the radiation absorbed by chemically unbound atoms by analyzing the transmitted energy relative to the incident energy at each frequency. The procedure consists of diluting the fluid sample with methyl isobutyl ketone (MIBK) and directly aspirating the solution. The actual process of atomization involves reducing the solution to a fine spray, dissolving it, and finally vaporizing it with a flame. The vaporization of the metal particles depends upon their time in the flame, the flame temperature, and the composition of the flame gas. The spectrum occurs because atoms in the vapor state can absorb
read more>> |
|
|
 |
MARITIME FLOW & ACCURACY TERMS
API Gravity -Relative Density - A means used by the petroleum industry to express the density of petroleum liquids. API gravity is measured by a hydrometer instrument having a scale graduated in degrees API. The relation between API gravity and relative density (formerly called specific gravity) is:
read more>> |
|
|
 |
EXPLOSION PROOF & HAZARDOUS AREAS
Class I, Division 2 Location A location (1) in which volatile flammable liquids or flammable gases are handled,processed, or used, but in which the liquids, vapors, or gases will normally be confined within closed containers or closed systems from which they can escape only in case of accidental rupture or breakdown of such containers or systems, or in case of abnormal operation of equipment; (2) in which ignitable concentrations of gases or vapors are normally prevented by positive mechanical ventilation and might become hazardous through failure or abnormal operation of the ventilating equipment; or (3) that is adjacent to a Class I, Division 1 location and to which ignitable concentrations of gases or vapors might occasionally be communicated
read more>> |
|
|
 |
HYDROLOGY TERMS
Hydrologic Services :
A general Term referring to the operations, products, verbal communications, and related forms of support provided by the NWS for the Nation's streams, reservoirs, and other areas affected by surface water.
Hydrologic Unit: A geographical area representing part or all of a surface drainage basin or distinct hydrologic feature such as a reservoir, lake,
read more>> |
|
|
 |
TECHNICAL TERMS
AC Linearity: A dynamic measurement of how well an A/D performs. In an ideal A/D converter, a pure sine wave on the analog input appears at the digital output as a pure (sampled) sine wave. In the real world, however, spurious signals due to nonlinear distortion within the A/D appear in the digital output. These anomalies are usually combinations of harmonics of the fundamental and intermodulation products, produced when the fundamental and its harmonics beat with the sampled frequency
read more>> |
|
|
 |
METEOROLOGICAL WEATHER STATION TERMS
Weather Stations gather , record and send out meteorological data . Some may also analyze meteorological data and patterns. Typical weather stations use several types of measuring instruments which might included thermometers, barometers, hygrometers, anemometers, wind vanes, rain gauges . Weather stations supporting airports usually have instruments for measuring rain drop size distribution or Disdrometers , transmissmeters for measuring cloud visibility and ceiling projectors for cloud ceiling
read more>> |
|
|
 |
COASTAL TERMS
The average height of the high waters over a 19-year period. For shorter periods of observations, corrections are applied to eliminate known variations and reduce the results to the equivalent of a mean 19-year value. All high water heights are included in the average where the type of tide is either semidiurnal or mixed. Only the higher high water heights are included in the average where the type of tide is diurnal. So determined, mean high water in the latter case is the same as mean higher high water.
read more>> |
|
|
 |
WATER TERMINOLOGY
contractor - a water agency that signs a contract to acquire given amounts of water from another agency, usually under specified conditions
contour plowing - plowing done in accordance with the natural outline or shape of the land by keeping the furrows or ditches at the same elevation as much as possible to reduce runoff and erosion
read more>> |
|
|
 |
WASTE WATER TERMS
Activated return sludge is normally returned continuously to the aeration tank. Recycling of activated sludge back to the aeration tank provides bacteria for incoming wastewater. Its should be brown in color with no obnoxious odor and is often also returned in small portions to the primary settling tanks to aid sedimentation. Settled activated sludge is generally thinner than raw sludge. Some activated sludge will be wasted to prevent excessive solids build up.
read more>> |
|
|
 |
OIL & GAS TERMS
Topping (Atmospheric distillation): The initial transformation of the crude oil at a refinery. The topper heats crude oil at atmospheric pressure to accomplish the first rough distillation cut. The lighter products produced in this process are further refined in the catalytic cracking unit or the reforming unit. Heavier products which cannot be vaporized and separated in this process are distilled still further in the vacuum distillation unit or the coker
read more>> |
|
|
 |
MARITIME TERMS
FLAGS OF CONVENIENCE - The registration of ships in a country whose tax on the profits of trading ships is low or whose requirements concerning manning or maintenance are not stringent. Sometimes referred to as flags of necessity; denotes registration of vessels in foreign nations that offer favorable tax structures and regulations; also the flag representing the nation under whose jurisdiction a ship is registered.
read more>> |
|
|
 |
OIL WELL TERMS
Total production refers to all the oil and gas produced from a property. Gross Production- Total production before deducting royalties. Net Production: Gross production, minus royalties, multiplied by the company's fractional working interest.
Production Tree: An arrangement of heavy duty valves and fittings installed on the wellhead to control flow from the well and-or to facilitate injection operations
read more>> |
|
|
 |
MINING TERMS
Acid deposition or acid rain – Referring loosely to mixtures of wet and dry deposited material from the atmosphere containing higher than normal amount of nitric and sulfuric acids. The precursors or chemical forerunners of acid rain formation result from both natural sources, such as volcanoes and decaying vegetation, and man-made sources, primarily emissions of sulfur and nitrogen oxides resulting from fossil fuel
read more>> |
|
|
 |
SEMICONDUCTOR TERMS
Photoresist An emulsion that is applied to the semiconductor surface, and is sensitive to light. It is exposed to the pattern required for the next stage in the fabrication process. It is then washed and only the soluble areas are left to protect the semiconductor surface to the next stage of the process
read more>> |
|
|
 |
WATER AND WASTEWATER TERMS
Mineral Water: contains large amounts of dissolved minerals such as calcium, sodium, magnesium, and iron. Some tap waters contain as many or more minerals than some commercial mineral waters. There is no scientific evidence that either high or low mineral content water is beneficial to humans.
read more>> |
|
|
 |
HVAC TERMS
LATENT HEAT OF CONDENSATION - The amount of heat energy in BTU's that must be removed to change the state of one pound of a vapor to one pound of liquid at the same temperature.
LATENT HEAT OF FUSION - The amount of heat energy, in BTU's required to change the state of one pound of a liquid to one pound of solid at the same temperature.
read more>> |
|
|
|
|
Types of Flowmeters |
|
|
|
|
|
