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...may make possible processes that could not be done in the presence of air. Vacuum engineering techniques are widely applied in materials processing such as d ...materials, pumps and measuring instruments can be used, whereas ultrahigh vacuum systems use specialized equipment to achieve pressures below one-millionth ...

[[File:Centrifugal Pump.jpg|thumb|A pair of centrifugal pumps for circulating hot water within a hydronic heating system|300px]] '''Centrifugal pumps''' are used to transport fluids by the conversion of rotational kinetic ene ...

...lo|first2=Sotsil|doi-access=free}}</ref> differently from compression heat pumps that are driven by mechanical energy.{{citation needed|date=December 2020}} ...tility Systems Including Combined Heat and Power (CHP) and Industrial Heat Pumps|date=2013-01-01|url=http://www.sciencedirect.com/science/article/pii/B97808 ...

...of sewage through the process. When adjustable speed drives are used, the pumps operate continuously at a speed that increases as the wet well level increa ...ge part of the energy used by industrial electrical motors. Where fans and pumps serve a varying process load, a simple way to vary the delivered quantity o ...

...D.J.L. & Brandon, Nigel & Hawkes, Adam. (2012). A review of domestic heat pumps. Energy Environ. Sci.. 5. 9291-9306. 10.1039/C2EE22653G.</ref> and evaporat ...of other plumbing services such as hydroponics, irrigation, fuels, oxygen, vacuum/compressed air, solids transfer, and more. ...

...elow the setpoint (SP) the compressor is powered. Refrigerators and vacuum pumps contain similar mechanisms. Simple on–off control systems like these can be ...

...ected around the ET-DSP electrodes is heated and flows radially toward the vacuum extraction wells heating the formation in the process. The difference betwe Typically, high vacuum systems like liquid ring pumps, rotary positive blowers, and rotary vane blowers are utilized for the extr ...

...the energy yield during discharging. While discharging the hollow sphere a vacuum will be created inside. To avoid [[cavitation]], the pump turbines and all ...e the required input pressure is lower as well. The input pressure of both pumps is given by the water column above them. For the additional pump this is th ...

...weekly. This is a particular concern due to the use of electric lights and pumps where persons are immersed in water. The GFCI has the typical "test" and "r * Using an ordinary [[vacuum cleaner]] in wet or damp areas. Only a "[[Vacuum cleaner#Wet./dry|wet vac]]" is suitable for this purpose. Overfilling its c ...

...ry in length from 200 [[micrometer (unit)|µm]] to 10&nbsp;mm) is passed by pumps from a [[storage tank]] to the consumer. The constructions, specifications ...e.org/web/20120314191723/http://www.ide-tech.com/refrigeration-and-heating/vacuum-ice-maker-vim|archive-date=March 14, 2012|url-status=dead}}</ref> Depending ...

...esh which removes water from the paper by sucking it out of suspension via vacuum. ...ous other tanks and chests that receive drainage from the forming wire and vacuum assisted drainage from suction boxes and wet fiber web handling rolls. On ...

...naffected by the [[space charge]] effects which limit the performance of [[vacuum tube]]s. Consequently, the valve can carry high currents at low ''arc volta ...s, a steel tank with ceramic insulators for the electrodes is used, with a vacuum pump system to counteract slight leakage of air into the tank around imperf ...

...hin Film Users Group|publisher=Northern California Chapter of the American Vacuum Society|date=2008-02-20|access-date=2012-07-16|archive-url=https://web.arch ...ww.discover-technologies.com/applications.html|title=Electroactive Polymer Pumps|date=7 June 2009|publisher=Discover technologies Inc|access-date=9 April 20 ...

...essful early bulbs were those that used a carbon filament sealed in a high vacuum. These were invented by [[Joseph Swan]] in 1878 in Britain and by [[Thomas ...S. |date=2022-10-01 |title=Thermal storage integrated into air-source heat pumps to leverage building electrification: A systematic literature review |url=h ...

[[File:Elektronenroehren-auswahl.jpg|thumb|upright 1.3|Later [[thermionic]] vacuum tubes, mostly miniature style, some with top cap connections for higher vol A '''vacuum tube''', '''electron tube''',<ref>{{cite book ...

...uantum metrology|measurement]], [[quantum imaging|imaging]], quantum [[QCD vacuum|energy]] generators and space [[navigation]] are all examples of emerging q ...2021/07/29/u-s-doe-pumps-another-73m-into-quantum-future/ | title=U.S. DOE Pumps Another $73M Into Quantum Future | website = The Next Platform | last = He ...

...ical circuits]] involving [[Active component|active components]] such as [[vacuum tube]]s, [[transistor]]s, [[diode]]s and [[integrated circuit]]s, and assoc ...s that involve [[active component|active electrical components]] such as [[vacuum tube]]s, [[transistor]]s, [[diode]]s, [[sensor]]s and [[integrated circuit] ...

...tegrate transistor-like [[nanoelectronics]] with mechanical [[actuator]]s, pumps, or motors, and may thereby form physical, biological, and [[chemical senso ...performance of graphene nanoelectromechanical systems |journal=Journal of Vacuum Science & Technology B |volume=29 |issue=5 |pages=050801 |date=2011 |doi=10 ...

...t speeds from 20,000 to over 50,000&nbsp;revolutions per minute (rpm) in a vacuum enclosure.<ref name="ScienceNews">{{Cite journal| last1 = Castelvecchi| fir Electrical energy can be stored thermally by resistive heating or heat pumps, and the stored heat can be converted back to electricity via [[Rankine cyc ...

...long the storage time. This is often achieved by placing the flywheel in a vacuum and using [[magnetic bearing]]s, tending to make the method expensive. Grea ...ed to district heating schemes, heated by either electrode boilers or heat pumps, is seen as a preferable approach. The stored heat is then transmitted to ...