STUDY OF PRESSURE CHANGE IN THE CAVITY WITH A MICROPOROUS FILLER
https://doi.org/10.15518/isjaee.2015.21.016
Abstract
The aim of the study is to determine influence of composition and properties of filler (vacuum insulation, sorbent) of pumping time and pressure distribution in the pumping cavity. In the work accepted assumptions: molecular flow regime of gas, microporous structure is presented of capillary equivalent length and diameter, gassing from the surface independent of pressure and are constant along the length of conventional capillary. Pumping process has been considered for steady pumping process and pumping process with constant pumped gas flow. Accordingly were obtained analytical dependence of pressure distribution in capillary and time of pumping process for design pressure ranges.
About the Authors
N. K. Nikulin
Moscow State Technical University n.a. N.E. Bauman (MSTU) 5, 2-nd Baumanskaya, 105005, Moscow, Russia
Russian Federation
Russian Federation
Ph.D., associate professor of N.E. Bauman MSTU
R. O. Andreev
Moscow State Technical University n.a. N.E. Bauman (MSTU) 5, 2-nd Baumanskaya, 105005, Moscow, Russia
Russian Federation
Russian Federation
master of technological machinery and equipment
References
1. Kaganer M.G. Teplomassoobmen v nizkotemperaturnyh teploizolâcionnyh konstrukciâh. M.: Ènergiâ, 1979.
2. Saksaganskij G.L. Molekulârnye potoki v složnyh vakuumnyh strukturah. M.: Аtomizdat, 1980.
3. Demihov K.E., Panfilov Û.V., Nikulin N.K. Vakuumnaâ tehnika: spravočnik. M.: Mašinostroenie, 2009. S. 56-61.
4. Demihov K.E., Nikulin N.K., Svičkar' E.V. Rasčet tečeniâ gaza v protočnoj časti molekulârnogo vakuumnogo nasosa. «Vakuumnaâ tehnika, materialy i tehnologiâ». Materialy VIII Meždunarodnoj naučnotehničeskoj konferencii / pod red. d-ra tehn. nauk, prof. S.B. Nesterova. M.:NOVELLА, 2013. S. 111-118.
5. Demihov K.E., Dronov А.V., Nikulin N.K. Rasčet otkačnyh parametrov molekulârnovâzkostnogo vakuumnogo nasosa // Vestnik MGTU im. N.È. Baumana. Ser. «Mašinostroenie». 2012. S. 3-9.
6. Serâkov А.S., Nikulin N.K. Statističeskoe modelirovanie processa perehoda molekul gaza čerez mežlopatočnyj kanal rabočego kolesa TMN. V Rossijskaâ studenčeskaâ naučno-tehničeskaâ konferenciâ «Vakuumnaâ tehnika i tehnologiâ», 19-21 aprelâ 2011 g.: materialy konferencii. Kazan': KGTU, 2011. S. 184.
7. GOST 8325-93. Steklovolokno. Niti kručenye kompleksnye. Tehničeskie usloviâ. Vved. 1996-07-01. M.: Izdatel'stvo standartov, 2002.
8. Demihov K.E., Makarov А.M., Nikulin N.K., Svičkar' E.V. Metodika rasčeta otkačnoj harakteristiki kinetičeskogo vysokovakuumnogo nasosa // Inženernyj žurnal: nauka i innovacii. 2013. № 5(17). URL: http://engjournal.ru/search/author/452/page1.html.
9. Šemarova O.А., Nikulin N.K. Opredelenie provodimosti v molekulârnom i perehodnom režimah tečeniâ gaza metodom častic v âčejkah // Inženernyj žurnal: nauka i innovacii. 2013. № 5(17). URL: http://engjournal.ru/catalog/machin/vacuum/753.html.
10. Šemarova O.А., Nikulin N.K. Matematičeskoe modelirovanie tečeniâ razrežennogo gaza pri naličii vozmuŝaûŝih vozdejstvij. VIII Meždunarodnaâ naučnotehničeskaâ konferenciâ. Vakuumnaâ tehnika, materialy i tehnologiâ». Materialy / pod red. d-ra tehn. nauk, prof. S.B. Nesterova. M.:NOVELLА, 2013. S. 105-111.
11. Demihov K.E., Nikulin N.K., Svičkar' E.V. Tečenie gaza v spiral'nom kanale molekulârnogo vakuumnogo nasosa // Vestnik MGTU im. N.È. Baumana. Ser. «Mašinostroenie». 2012. S. 10-20.
Review
For citations:
Nikulin N.K., Andreev R.O. STUDY OF PRESSURE CHANGE IN THE CAVITY WITH A MICROPOROUS FILLER. Alternative Energy and Ecology (ISJAEE). 2015;(21):132-136. (In Russ.) https://doi.org/10.15518/isjaee.2015.21.016
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