pump laws

pump laws
закономерности работы насосов

- см. главу о центробежных насосах в справочнике ASHRAE или карманном справочнике ASHRAE.

закономерности вентиляторов (законы подобия вентиляторов)

- 1. При постоянном диаметре рабочего колеса вентилятора, постоянной плотности среды и переменной скорости его вращения расход изменяется пропорционально первой степени изменения скорости, изменения давления - второй, изменения мощности - третьей. 2. При переменном диаметре рабочего колеса вентилятора и постоянной скорости его вращения производительность пропорциональна первой степени его изменения, напор - второй, мощность - третьей степени.


English-Russian dictionary of terms for heating, ventilation, air conditioning and cooling air. 2013.

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Смотреть что такое "pump laws" в других словарях:

  • Pump and dump — is a form of microcap fraud that involves artificially inflating the price of a stock through false and misleading positive statements, in order to sell the cheaply purchased stock at a higher price. Once the operators of the scheme dump their… …   Wikipedia

  • Pump — For information on Wikipedia project related discussions, see . A pump is a device used to move gases, liquids or slurries. A pump moves liquids or gases from lower pressure to higher pressure, and overcomes this difference in pressure by adding… …   Wikipedia

  • Affinity laws — The affinity laws are used in hydraulics and HVAC to express the relationship between several variables involved in pump or fan performance (such as head, volumetric flow rate, shaft speed, and power). They apply to pumps, fans, and hydraulic… …   Wikipedia

  • Vacuum pump — A vacuum pump is a device that removes gas molecules from a sealed volume in order to leave behind a partial vacuum. The vacuum pump was invented in 1650 by Otto von Guericke. Types Pumps can be broadly categorized according to three… …   Wikipedia

  • Turbomolecular pump — A turbomolecular pump is a type of vacuum pump, superficially similar to a turbopump, used to obtain and maintain high vacuum. These pumps work on the principle that gas molecules can be given momentum in a desired direction by repeated collision …   Wikipedia

  • Shotgun — For other uses, see Shotgun (disambiguation). A pump action Remington 870, two semi automatic …   Wikipedia

  • Gun politics in Australia — Many Australians (765,000 or 5.2% of Australian adults as of August 2007 [cite web title = Licensees and Registered Firearms in Australia(SSAA report) url= http://www.ssaa.org.au/newssaa/political%20archive/graphs/LicenseesRegisteredFirearms.jpg|a… …   Wikipedia

  • The Gods Themselves — infobox Book | name = The Gods Themselves title orig = translator = image caption = Cover of first edition (hardcover) author = Isaac Asimov illustrator = cover artist = country = United States language = English series = genre = Science fiction… …   Wikipedia

  • Centrifugal compressor — Centrifugal compressors, sometimes termed radial compressors, are a sub class of dynamic axisymmetric work absorbing turbomachinery.[1] Centrifugal impeller with a highly polished surface likely to improve performance …   Wikipedia

  • Filling station — The still operating Skovshoved Filling Station from 1935 in Copenhagen, Denmark, designed by Arne Jacobsen …   Wikipedia

  • Gun politics — A pyre of confiscated smuggled weapons about to be set ablaze in Nairobi, Kenya …   Wikipedia


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