[permalink] [id link]
When, however, a centrifugal pump with vanes curved backwards in such forms as are ordinarily used in well-constructed examples of the machine, is driven at a speed considerably above that requisite merely to overcome the pressure of the water, and cause lifting or propulsion to commence, the radial component of the force applied to the water by the vanes will become considerable, and the water leaving the circumference of the wheel will have a velocity less than that of the circumference of the wheel in a degree having some real importance in practice.
from
Wikipedia
Some Related Sentences
When and however
When all has been said, however, the big branch store remains a major break with history in the development of American retailing.
When he was back on his feet again and about to reinstall the fuses, however, he hesitated.
When Sforza also abandoned Louis, Alfonso seemed to have all his problems solved ; however, his relationship with Joan suddenly worsened, and in May 1423 he had her lover, and a powerful figure in the Neapolitan court, Gianni Caracciolo, arrested.
When used appropriately, opioids and similar narcotic analgesics are otherwise safe and effective, however risks such as addiction and the body becoming used to the drug ( tolerance ) can occur.
When the opportunity arises, however, the pair will switch back to the standard mixed attacking position, with the woman in front.
When it started in 1970, the Universal Press Syndicate gave cartoonists a 50-percent share on the ownership of their works, while the Creators Syndicate ( founded in 1987 ) granted artists full rights to the strips, something that Universal Press did in 1990. followed by King Features in 1995, while before 1999 both the Tribune and United Feature services began granting rights to creators over their works ; however the latter three syndicates only applied this to new strips, or to ones popular enough.
When he did not restore democratic rule and occasionally engaged in open repression, however, he was overthrown by the military in 1957 with the backing of both political parties, and a provisional government was installed.
When covalent bonds link long chains of atoms in large molecules, however ( as in polymers such as nylon ), or when covalent bonds extend in networks though solids that are not composed of discrete molecules ( such as diamond or quartz or the silicate minerals in many types of rock ) then the structures that result may be both strong and tough, at least in the direction oriented correctly with networks of covalent bonds.
When it comes to naming, however, this principle is not always compatible with the traditional rank-based nomenclature.
When using the 1581 together with the older C64, however, it is almost as slow as the older 1541 drive, due to limitations of the C64's ROM code.
When PEI entered Confederation in 1873, it was accorded 6 MPs and 4 Senators ; however this was reduced to 4 MPs by the early twentieth century.
When deforestation occurs without proper replanting, however ; local wood supplies become difficult to obtain near enough to remain competitive, leading to the city's abandonment, as happened repeatedly in Ancient Asia Minor.
When Otho was defeated by Vitellius at the First Battle of Bedriacum however, the armies in Judaea and Egypt took matters into their own hands and declared Vespasian emperor on 1 July 69.
When playing the rim of an okedō, however, it is important to hit only the outermost metal ring and not the actual rim of the drum body.
When applied to Sanskrit, however, it added a great deal of complexity to the script, due to the large variety of clusters in this language ( up to five consonants, e. g. rtsny ).
When Coppola hit upon the idea of making it a metaphor for American capitalism, however, he eagerly agreed to take the helm.
When exactly Gesta Danorum was written is the subject of numerous works ; however, it is generally agreed that Gesta Danorum was not finished before 1208.
When a person considers every event as independent, however, the fallacy can be greatly reduced.
When the listener moves slightly to the side, however, this phantom channel disappears or is greatly reduced.
When these bishops and councils spoke on the matter, however, they were not defining something new, but instead " were ratifying what had already become the mind of the Church.
When, however, the Treaty of San Stefano threatened a Russian hegemony in the Near East, Andrássy concurred with the German and British courts that the final adjustment of matters must be submitted to a European congress.
When all of the tasks are done at the same time, however, it is possible to reduce the latency to the length of the longest task.
When the Normans had control of Maine, William the Conqueror was able to invade England successfully ; however in 1069 the citizens revolted and expelled the Normans, which led to Hugh being proclaimed count of Maine.
When " Out of Step " was rerecorded for the LP Out of Step, MacKaye inserted a spoken section explaining, " This is not a set of rules ..." An ideological door had already been opened, however, and by 1982, some straight-edge punks, such as followers of the band SS Decontrol, were swatting beers out of people's hands at clubs.
When discussing ancient history, however, the term Near East is more commonly used.
When and centrifugal
When the centrifugal force term is expressed in terms of parameters of the rotating frame, replacing with, it can be seen that it is the same centrifugal force previously derived for rotating reference frames.
When Newton's laws are transformed to a uniformly rotating frame of reference, the Coriolis and centrifugal forces appear.
When a system design includes a centrifugal pump, an important issue it its design is matching the head loss-flow characteristic with the pump so that it operates at or close to the point of its maximum efficiency.
When moving within a rotating reference frame such as in a centrifuge or environment where gravity is simulated with centrifugal force, the coriolis effect causes a sense of motion in the vestibular system that does not match the motion that is seen.
When thermalling, the sensor will detect acceleration ( gravity plus centrifugal ) above 1 g and tell the relative netto variometer to stop subtracting the sailplane's wing load-adjusted polar sink rate for the duration.
When the motor approaches its normal operating speed, centrifugal force overcomes the spring force and the weights swing out, raising the plate away from the electrical contacts.
When artificial gravity is needed, the ships are spun to produce centrifugal force.
When in a non-inertial reference frame, fictitious forces, such as centrifugal pseudoforce may be appropriate.
When a molecule rotates, the centrifugal force pulls the atoms apart.
When commercial electric power became available, sirens were no longer driven by external sources of compressed air, but by electric motors, which generated the necessary flow of air via a simple centrifugal fan, which was incorporated into the siren ’ s inner cylinder.
When a centrifugal fan is specified for a given CFM and static pressure at conditions other than standard, an air density correction factor must be applied to select the proper size fan to meet the new condition.
When the centrifugal fan performance is not at standard conditions, the performance must be converted to standard conditions before entering the performance tables.
When the flow is parallel to the axis of rotation, they are called axial flow machines, and when flow is perpendicular to the axis of rotation, they are referred to as radial ( or centrifugal ) flow machines.
When the accelerator was pressed a centrifugal clutch or fluid coupling would engage and the car would begin to move.
When the metal is molten the arm is released, forcing ( by centrifugal force ) the metal into the mold.
When and pump
When pharmacological methods fail, a purpose-designed external vacuum pump can be used to attain erection, with a separate compression ring fitted to the penis to maintain it.
* When insulin pump technology is combined with a continuous blood glucose monitoring system, the technology seems promising for real-time control of the blood sugar level.
When the measured pressure is rapidly pulsing, such as when the gauge is near a reciprocating pump, an orifice restriction in the connecting pipe is frequently used to avoid unnecessary wear on the gears and provide an average reading ; when the whole gauge is subject to mechanical vibration, the entire case including the pointer and indicator card can be filled with an oil or glycerin.
When manually powered, the term " handpump " is often used to refer to both the pump and the associated handle.
When enemies attempted to dig tunnels under walls for mining or entry into the city, the defenders used large bellows ( the type the Chinese commonly used in heating up a blast furnace for smelting cast iron ) to pump smoke into the tunnels in order to suffocate the intruders.
When discussing a leak in the system or backstreaming through the pump, throughput refers to the volume leak rate multiplied by the pressure at the vacuum side of the leak, so the leak throughput can be compared to the pump throughput.
When the photons belonging to the signal at a different wavelength from the pump light meet the excited erbium atoms, the erbium atoms give up some of their energy to the signal and return to their lower-energy state.
When the water drops below a certain level, a pressure switch, level switch or float valve will activate a pump or open a public water line to refill the water tower.
When a pipeline is built, the construction project not only covers the civil work to lay the pipeline and build the pump / compressor stations, it also has to cover all the work related to the installation of the field devices that will support remote operation.
When H. pylori infection is present, the most effective treatments are combinations of 2 antibiotics ( e. g. Clarithromycin, Amoxicillin, Tetracycline, Metronidazole ) and 1 proton pump inhibitor ( PPI ), sometimes together with a bismuth compound.
When a heat pump is used for heating, it uses the same basic refrigeration-type cycle employed by an air conditioner or a refrigerator, but releasing heat into the conditioned-space rather than into the surrounding environment.
When used for heating a building on a mild day, for example 10 ° C, a typical air-source heat pump ( ASHP ) has a COP of 3 to 4, whereas an electrical resistance heater has a COP of 1. 0.
When there is a high temperature differential on a cold day, ( e. g., when an air-source heat pump is used to heat a house on a very cold winter day of 0 ° C ), it takes more work to move the same amount of heat to indoors than on a mild day.
When it is extremely cold outside, it is simpler, and wears the machine less, to heat using an electric-resistance heater rather than to overload an air-source heat pump.
When capsaicin is present, it alters the conformation of the SERCA, and thus reduces the ion movement ; as a result the ATP energy ( which would have been used to pump the ions ) is instead released as thermal energy.
When the simulator is in operation, an accurate shape for the flexible sheet is maintained by its attachment to a shaped former by suction pressure produced by a small vacuum pump.
When conditions are conducive to stomatal opening ( e. g., high light intensity and high humidity ), a proton pump drives protons ( H < sup >+</ sup >) from the guard cells.
When Sperry was given money to persuade him to rebuild his factory in the village, he handed it over to the village trustees with the instructions that it be given to the fire department to help in the purchase of a new booster pump.
When the Northern Pacific Railway built its line through Adams County, they established a station where Hatton is and built a section and pump house.
When enemies attempted to dig tunnels under walls for mining or entry into the city, the defenders used large bellows ( the type the Chinese commonly used in heating up the blast furnace for smelting cast iron ) to pump smoke into the tunnels in order to suffocate the intruders.
When used for ED, a purpose-designed vacuum pump is used to produce an erection by simple mechanical and hydrodynamical action in spite of vascular or nerve damage, and the ring slid off the pump's cylinder onto the base of the penis to maintain the erection before it is lost.
When used with a pump a lubricating gel is always used to help the pump to maintain a vacuum ( in the same way as vacuum grease is used with a vacuum pump in scientific applications ).
0.813 seconds.