Abo Bibliothek: Guest

EXPERIMENTAL INVESTIGATION OF THERMOMOLECULAR PRESSURE DIFFERENCE ON A THIN PERMEABLE NON-ISOTHERMAL MEMBRANE THERMOMOLECULAR PUMP

Volumen 47, Ausgabe 7, 2016, pp. 733-746
DOI: 10.1615/TsAGISciJ.2017019843
Get accessGet access

ABSTRAKT

A thermomolecular pump (TMP) is a pump in which the flow of thermal transpiration is realized, namely, the gas flow in the channel under the temperature difference moves from cold to hot. In this paper, the results of an investigation of the characteristics of a laboratory sample of a TMP, operating at gas pressure in the range of 0.04 ≤ p0 ≤ 10 torr are presented. The Peltier element was used as a non-isothermal perforated TMP membrane. The temperature regime on the proposed membrane was investigated experimentally. Application of the Peltier element as a membrane of the TMP allowed the heating and cooling of the surfaces of the TMP membrane to be structurally overlapped and implementing the time-constant temperature difference on the membrane. The measured thermomolecular pressure difference (TPD) values (ΔpT ) in the pump operation regime in the closed TMP channel and approximation of these values using numerical computation of the TPD, allowed the true value of the temperature difference for the gas in the channels of the TMP membrane to be determined. The value of the gas temperature difference in the channels along the membrane thickness (ΔT) is lower than the measured temperature difference at the copper buses of the membrane (ΔTω) by approximately 40%. As is shown experimentally, the TPD value does not depend on the direction of the gas motion through the permeable non-uniformly heated TMP membrane, i.e., there is no gravitational component in the TPD value. The experimental investigation results for the development of a laboratory sample of a TMP operating at high gas pressure in the range of 3 ≤ p0 ≤ 750 torr are presented.

Neueste Ausgabe

KIRILL IVANOVICH SYPALO−50TH ANNIVERSARY NUMERICAL STUDY OF THE DISTURBANCES GENERATED BY MICROJETS IN A SUPERSONIC FLAT-PLATE BOUNDARY LAYER Andrei Valerievich Novikov, Alexander Vitalyevich Fedorov, Ivan Vladimirovich Egorov, Anton Olegovich Obraz, Nikolay Nikolaevich Semenov ANALYSIS OF THE MOVING DETONATION INTERACTION WITH TURBULENT BOUNDARY LAYERS IN A DUCT ON THE BASIS OF NUMERICAL SIMULATION Vladimir Anatolievich Sabelnikov, Vladimir Viktorovich Vlasenko, Sergey Sergeyevich Molev EXPERIMENTAL STUDY OF COUNTERFLOW BLOWING IN HIGH-SPEED FLOW THROUGH AN ASYMMETRIC SLOT IN THE LEADING EDGE OF A SHARP WEDGE Eduard Borisovich Vasilevskii, Ivan Valeryevich Ezhov, Pavel Vladimirovich Chuvakhov ASYMPTOTIC SOLUTIONS TO HYPERSONIC BOUNDARY LAYER EQUATIONS ON A FLAT WING WITH A POINT OF INFLECTION ON THE LEADING EDGE Georgiy Nikolaevich Dudin, Aleksey Vyacheslavovich Ledovskiy WAVE MODEL OF ORGANIZED STRUCTURES IN A TURBULENT BOUNDARY LAYER ON A PLATE WITH ZERO LONGITUDINAL PRESSURE GRADIENT Vladimir Alekseevich Zharov, Igor Ivanovich Lipatov, Rami Salah Saber Selim NUMERICAL SIMULATION OF THE FLOW AROUND LANDSCAPE FRAGMENTS AND SOLUTION VERIFICATION Viktor Viktorovich Vyshinsky, Koang T'in' Zoan POLYNOMIAL REPRESENTATION OF THERMODYNAMIC PROPERTIES OF COMBINED FUEL SYSTEMS IN RAMJET SIMULATION MODELS Timur Romanovich Zuev, Mikhail Semenovich Tararyshkin A MODEL TEST METHODOLOGY FOR THE INVESTIGATION OF AN ELASTICALLY SCALED MAIN ROTOR Maxim Andreyevich Ledyankin , Sergey Anatolyevich Mikhailov, Dmitry Valeryevich Nedel'ko, Timur Arturovich Agliullin INDEX, VOLUME 51, 2020
Digitales Portal Digitale Bibliothek eBooks Zeitschriften Referenzen und Berichte Forschungssammlungen Preise und Aborichtlinien Begell House Kontakt Language English 中文 Русский Português German French Spain