Natural Circulation of a Fluid in a Thermosiphon Slightly Inclined to the Horizontal
Abstract A pronounced stratification of the temperature (density) of the fluid over the cross section of the heating zone occurs in a thermosyphon that is slightly inclined to the horizontal and has a high degree of water filling, which leads to the onset of natural circulation of the medium along t...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Balunov, B. F. [verfasserIn] |
|---|
| Format: |
Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
2020 |
|---|
| Anmerkung: |
© Pleiades Publishing, Ltd. 2020 |
|---|
| Übergeordnetes Werk: |
Enthalten in: High temperature - Pleiades Publishing, 1964, 58(2020), 3 vom: Mai, Seite 360-368 |
|---|---|
| Übergeordnetes Werk: |
volume:58 ; year:2020 ; number:3 ; month:05 ; pages:360-368 |
| Links: |
|---|
| DOI / URN: |
10.1134/S0018151X20030049 |
|---|
| Katalog-ID: |
OLC2119240167 |
|---|
| LEADER | 01000naa a22002652 4500 | ||
|---|---|---|---|
| 001 | OLC2119240167 | ||
| 003 | DE-627 | ||
| 005 | 20230504165535.0 | ||
| 007 | tu | ||
| 008 | 230504s2020 xx ||||| 00| ||eng c | ||
| 024 | 7 | |a 10.1134/S0018151X20030049 |2 doi | |
| 035 | |a (DE-627)OLC2119240167 | ||
| 035 | |a (DE-He213)S0018151X20030049-p | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 082 | 0 | 4 | |a 620 |q VZ |
| 100 | 1 | |a Balunov, B. F. |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Natural Circulation of a Fluid in a Thermosiphon Slightly Inclined to the Horizontal |
| 264 | 1 | |c 2020 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ohne Hilfsmittel zu benutzen |b n |2 rdamedia | ||
| 338 | |a Band |b nc |2 rdacarrier | ||
| 500 | |a © Pleiades Publishing, Ltd. 2020 | ||
| 520 | |a Abstract A pronounced stratification of the temperature (density) of the fluid over the cross section of the heating zone occurs in a thermosyphon that is slightly inclined to the horizontal and has a high degree of water filling, which leads to the onset of natural circulation of the medium along the length of the thermosiphon. In this case, there is an upward flow of water or a steam–water mixture in the upper part of the thermosiphon and a downward flow in the lower part. In experiments with a full-scale thermosiphon, the natural circulation in question increased the axial heat transfer through nonboiling water along all thermosiphon zones by three to seven times as compared to the heat transfer in a vertical thermosiphon. The estimated mass flow rate of natural circulation along the heating zone ranged from 25 to 105 kg/($ m^{2} $ s). The heat-transfer coefficient and friction factor are estimated at the boundary of countercurrent water flows induced by natural circulation. The conditions of poorer cooling of the thermosiphon heating zone due to steam separation at its upper generatrix are examined. A decrease in the mass filling of the thermosiphon, i.e., an increase in the average void fraction of the medium in it, successively leads to the onset of bubbling steam condensation within the transport section and then in the cooling zone, with a decrease in the length of the upper section of nonboiling water. A transition to film condensation of steam occurs at the limit along the entire length of the cooling zone with a countercurrent steam flow and a near-wall film of its condensate above the level of the steam–water mixture in the thermosiphon. | ||
| 700 | 1 | |a Lychakov, V. D. |4 aut | |
| 700 | 1 | |a Shcheglov, A. A. |4 aut | |
| 700 | 1 | |a Matyash, A. S. |4 aut | |
| 700 | 1 | |a Egorov, M. Yu. |4 aut | |
| 700 | 1 | |a Borisov, A. O. |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t High temperature |d Pleiades Publishing, 1964 |g 58(2020), 3 vom: Mai, Seite 360-368 |w (DE-627)129595012 |w (DE-600)240595-7 |w (DE-576)015087913 |x 0018-151X |7 nnns |
| 773 | 1 | 8 | |g volume:58 |g year:2020 |g number:3 |g month:05 |g pages:360-368 |
| 856 | 4 | 1 | |u https://doi.org/10.1134/S0018151X20030049 |z lizenzpflichtig |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a SYSFLAG_A | ||
| 912 | |a GBV_OLC | ||
| 912 | |a SSG-OLC-TEC | ||
| 912 | |a SSG-OLC-PHY | ||
| 951 | |a AR | ||
| 952 | |d 58 |j 2020 |e 3 |c 05 |h 360-368 | ||
| author_variant |
b f b bf bfb v d l vd vdl a a s aa aas a s m as asm m y e my mye a o b ao aob |
|---|---|
| matchkey_str |
article:0018151X:2020----::auacruainffudntemsposihlici |
| hierarchy_sort_str |
2020 |
| publishDate |
2020 |
| allfields |
10.1134/S0018151X20030049 doi (DE-627)OLC2119240167 (DE-He213)S0018151X20030049-p DE-627 ger DE-627 rakwb eng 620 VZ Balunov, B. F. verfasserin aut Natural Circulation of a Fluid in a Thermosiphon Slightly Inclined to the Horizontal 2020 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Pleiades Publishing, Ltd. 2020 Abstract A pronounced stratification of the temperature (density) of the fluid over the cross section of the heating zone occurs in a thermosyphon that is slightly inclined to the horizontal and has a high degree of water filling, which leads to the onset of natural circulation of the medium along the length of the thermosiphon. In this case, there is an upward flow of water or a steam–water mixture in the upper part of the thermosiphon and a downward flow in the lower part. In experiments with a full-scale thermosiphon, the natural circulation in question increased the axial heat transfer through nonboiling water along all thermosiphon zones by three to seven times as compared to the heat transfer in a vertical thermosiphon. The estimated mass flow rate of natural circulation along the heating zone ranged from 25 to 105 kg/($ m^{2} $ s). The heat-transfer coefficient and friction factor are estimated at the boundary of countercurrent water flows induced by natural circulation. The conditions of poorer cooling of the thermosiphon heating zone due to steam separation at its upper generatrix are examined. A decrease in the mass filling of the thermosiphon, i.e., an increase in the average void fraction of the medium in it, successively leads to the onset of bubbling steam condensation within the transport section and then in the cooling zone, with a decrease in the length of the upper section of nonboiling water. A transition to film condensation of steam occurs at the limit along the entire length of the cooling zone with a countercurrent steam flow and a near-wall film of its condensate above the level of the steam–water mixture in the thermosiphon. Lychakov, V. D. aut Shcheglov, A. A. aut Matyash, A. S. aut Egorov, M. Yu. aut Borisov, A. O. aut Enthalten in High temperature Pleiades Publishing, 1964 58(2020), 3 vom: Mai, Seite 360-368 (DE-627)129595012 (DE-600)240595-7 (DE-576)015087913 0018-151X nnns volume:58 year:2020 number:3 month:05 pages:360-368 https://doi.org/10.1134/S0018151X20030049 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY AR 58 2020 3 05 360-368 |
| spelling |
10.1134/S0018151X20030049 doi (DE-627)OLC2119240167 (DE-He213)S0018151X20030049-p DE-627 ger DE-627 rakwb eng 620 VZ Balunov, B. F. verfasserin aut Natural Circulation of a Fluid in a Thermosiphon Slightly Inclined to the Horizontal 2020 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Pleiades Publishing, Ltd. 2020 Abstract A pronounced stratification of the temperature (density) of the fluid over the cross section of the heating zone occurs in a thermosyphon that is slightly inclined to the horizontal and has a high degree of water filling, which leads to the onset of natural circulation of the medium along the length of the thermosiphon. In this case, there is an upward flow of water or a steam–water mixture in the upper part of the thermosiphon and a downward flow in the lower part. In experiments with a full-scale thermosiphon, the natural circulation in question increased the axial heat transfer through nonboiling water along all thermosiphon zones by three to seven times as compared to the heat transfer in a vertical thermosiphon. The estimated mass flow rate of natural circulation along the heating zone ranged from 25 to 105 kg/($ m^{2} $ s). The heat-transfer coefficient and friction factor are estimated at the boundary of countercurrent water flows induced by natural circulation. The conditions of poorer cooling of the thermosiphon heating zone due to steam separation at its upper generatrix are examined. A decrease in the mass filling of the thermosiphon, i.e., an increase in the average void fraction of the medium in it, successively leads to the onset of bubbling steam condensation within the transport section and then in the cooling zone, with a decrease in the length of the upper section of nonboiling water. A transition to film condensation of steam occurs at the limit along the entire length of the cooling zone with a countercurrent steam flow and a near-wall film of its condensate above the level of the steam–water mixture in the thermosiphon. Lychakov, V. D. aut Shcheglov, A. A. aut Matyash, A. S. aut Egorov, M. Yu. aut Borisov, A. O. aut Enthalten in High temperature Pleiades Publishing, 1964 58(2020), 3 vom: Mai, Seite 360-368 (DE-627)129595012 (DE-600)240595-7 (DE-576)015087913 0018-151X nnns volume:58 year:2020 number:3 month:05 pages:360-368 https://doi.org/10.1134/S0018151X20030049 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY AR 58 2020 3 05 360-368 |
| allfields_unstemmed |
10.1134/S0018151X20030049 doi (DE-627)OLC2119240167 (DE-He213)S0018151X20030049-p DE-627 ger DE-627 rakwb eng 620 VZ Balunov, B. F. verfasserin aut Natural Circulation of a Fluid in a Thermosiphon Slightly Inclined to the Horizontal 2020 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Pleiades Publishing, Ltd. 2020 Abstract A pronounced stratification of the temperature (density) of the fluid over the cross section of the heating zone occurs in a thermosyphon that is slightly inclined to the horizontal and has a high degree of water filling, which leads to the onset of natural circulation of the medium along the length of the thermosiphon. In this case, there is an upward flow of water or a steam–water mixture in the upper part of the thermosiphon and a downward flow in the lower part. In experiments with a full-scale thermosiphon, the natural circulation in question increased the axial heat transfer through nonboiling water along all thermosiphon zones by three to seven times as compared to the heat transfer in a vertical thermosiphon. The estimated mass flow rate of natural circulation along the heating zone ranged from 25 to 105 kg/($ m^{2} $ s). The heat-transfer coefficient and friction factor are estimated at the boundary of countercurrent water flows induced by natural circulation. The conditions of poorer cooling of the thermosiphon heating zone due to steam separation at its upper generatrix are examined. A decrease in the mass filling of the thermosiphon, i.e., an increase in the average void fraction of the medium in it, successively leads to the onset of bubbling steam condensation within the transport section and then in the cooling zone, with a decrease in the length of the upper section of nonboiling water. A transition to film condensation of steam occurs at the limit along the entire length of the cooling zone with a countercurrent steam flow and a near-wall film of its condensate above the level of the steam–water mixture in the thermosiphon. Lychakov, V. D. aut Shcheglov, A. A. aut Matyash, A. S. aut Egorov, M. Yu. aut Borisov, A. O. aut Enthalten in High temperature Pleiades Publishing, 1964 58(2020), 3 vom: Mai, Seite 360-368 (DE-627)129595012 (DE-600)240595-7 (DE-576)015087913 0018-151X nnns volume:58 year:2020 number:3 month:05 pages:360-368 https://doi.org/10.1134/S0018151X20030049 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY AR 58 2020 3 05 360-368 |
| allfieldsGer |
10.1134/S0018151X20030049 doi (DE-627)OLC2119240167 (DE-He213)S0018151X20030049-p DE-627 ger DE-627 rakwb eng 620 VZ Balunov, B. F. verfasserin aut Natural Circulation of a Fluid in a Thermosiphon Slightly Inclined to the Horizontal 2020 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Pleiades Publishing, Ltd. 2020 Abstract A pronounced stratification of the temperature (density) of the fluid over the cross section of the heating zone occurs in a thermosyphon that is slightly inclined to the horizontal and has a high degree of water filling, which leads to the onset of natural circulation of the medium along the length of the thermosiphon. In this case, there is an upward flow of water or a steam–water mixture in the upper part of the thermosiphon and a downward flow in the lower part. In experiments with a full-scale thermosiphon, the natural circulation in question increased the axial heat transfer through nonboiling water along all thermosiphon zones by three to seven times as compared to the heat transfer in a vertical thermosiphon. The estimated mass flow rate of natural circulation along the heating zone ranged from 25 to 105 kg/($ m^{2} $ s). The heat-transfer coefficient and friction factor are estimated at the boundary of countercurrent water flows induced by natural circulation. The conditions of poorer cooling of the thermosiphon heating zone due to steam separation at its upper generatrix are examined. A decrease in the mass filling of the thermosiphon, i.e., an increase in the average void fraction of the medium in it, successively leads to the onset of bubbling steam condensation within the transport section and then in the cooling zone, with a decrease in the length of the upper section of nonboiling water. A transition to film condensation of steam occurs at the limit along the entire length of the cooling zone with a countercurrent steam flow and a near-wall film of its condensate above the level of the steam–water mixture in the thermosiphon. Lychakov, V. D. aut Shcheglov, A. A. aut Matyash, A. S. aut Egorov, M. Yu. aut Borisov, A. O. aut Enthalten in High temperature Pleiades Publishing, 1964 58(2020), 3 vom: Mai, Seite 360-368 (DE-627)129595012 (DE-600)240595-7 (DE-576)015087913 0018-151X nnns volume:58 year:2020 number:3 month:05 pages:360-368 https://doi.org/10.1134/S0018151X20030049 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY AR 58 2020 3 05 360-368 |
| allfieldsSound |
10.1134/S0018151X20030049 doi (DE-627)OLC2119240167 (DE-He213)S0018151X20030049-p DE-627 ger DE-627 rakwb eng 620 VZ Balunov, B. F. verfasserin aut Natural Circulation of a Fluid in a Thermosiphon Slightly Inclined to the Horizontal 2020 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Pleiades Publishing, Ltd. 2020 Abstract A pronounced stratification of the temperature (density) of the fluid over the cross section of the heating zone occurs in a thermosyphon that is slightly inclined to the horizontal and has a high degree of water filling, which leads to the onset of natural circulation of the medium along the length of the thermosiphon. In this case, there is an upward flow of water or a steam–water mixture in the upper part of the thermosiphon and a downward flow in the lower part. In experiments with a full-scale thermosiphon, the natural circulation in question increased the axial heat transfer through nonboiling water along all thermosiphon zones by three to seven times as compared to the heat transfer in a vertical thermosiphon. The estimated mass flow rate of natural circulation along the heating zone ranged from 25 to 105 kg/($ m^{2} $ s). The heat-transfer coefficient and friction factor are estimated at the boundary of countercurrent water flows induced by natural circulation. The conditions of poorer cooling of the thermosiphon heating zone due to steam separation at its upper generatrix are examined. A decrease in the mass filling of the thermosiphon, i.e., an increase in the average void fraction of the medium in it, successively leads to the onset of bubbling steam condensation within the transport section and then in the cooling zone, with a decrease in the length of the upper section of nonboiling water. A transition to film condensation of steam occurs at the limit along the entire length of the cooling zone with a countercurrent steam flow and a near-wall film of its condensate above the level of the steam–water mixture in the thermosiphon. Lychakov, V. D. aut Shcheglov, A. A. aut Matyash, A. S. aut Egorov, M. Yu. aut Borisov, A. O. aut Enthalten in High temperature Pleiades Publishing, 1964 58(2020), 3 vom: Mai, Seite 360-368 (DE-627)129595012 (DE-600)240595-7 (DE-576)015087913 0018-151X nnns volume:58 year:2020 number:3 month:05 pages:360-368 https://doi.org/10.1134/S0018151X20030049 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY AR 58 2020 3 05 360-368 |
| language |
English |
| source |
Enthalten in High temperature 58(2020), 3 vom: Mai, Seite 360-368 volume:58 year:2020 number:3 month:05 pages:360-368 |
| sourceStr |
Enthalten in High temperature 58(2020), 3 vom: Mai, Seite 360-368 volume:58 year:2020 number:3 month:05 pages:360-368 |
| format_phy_str_mv |
Article |
| institution |
findex.gbv.de |
| dewey-raw |
620 |
| isfreeaccess_bool |
false |
| container_title |
High temperature |
| authorswithroles_txt_mv |
Balunov, B. F. @@aut@@ Lychakov, V. D. @@aut@@ Shcheglov, A. A. @@aut@@ Matyash, A. S. @@aut@@ Egorov, M. Yu. @@aut@@ Borisov, A. O. @@aut@@ |
| publishDateDaySort_date |
2020-05-01T00:00:00Z |
| hierarchy_top_id |
129595012 |
| dewey-sort |
3620 |
| id |
OLC2119240167 |
| language_de |
englisch |
| fullrecord |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000naa a22002652 4500</leader><controlfield tag="001">OLC2119240167</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230504165535.0</controlfield><controlfield tag="007">tu</controlfield><controlfield tag="008">230504s2020 xx ||||| 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1134/S0018151X20030049</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)OLC2119240167</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-He213)S0018151X20030049-p</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">620</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Balunov, B. F.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Natural Circulation of a Fluid in a Thermosiphon Slightly Inclined to the Horizontal</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2020</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">ohne Hilfsmittel zu benutzen</subfield><subfield code="b">n</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Band</subfield><subfield code="b">nc</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">© Pleiades Publishing, Ltd. 2020</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Abstract A pronounced stratification of the temperature (density) of the fluid over the cross section of the heating zone occurs in a thermosyphon that is slightly inclined to the horizontal and has a high degree of water filling, which leads to the onset of natural circulation of the medium along the length of the thermosiphon. In this case, there is an upward flow of water or a steam–water mixture in the upper part of the thermosiphon and a downward flow in the lower part. In experiments with a full-scale thermosiphon, the natural circulation in question increased the axial heat transfer through nonboiling water along all thermosiphon zones by three to seven times as compared to the heat transfer in a vertical thermosiphon. The estimated mass flow rate of natural circulation along the heating zone ranged from 25 to 105 kg/($ m^{2} $ s). The heat-transfer coefficient and friction factor are estimated at the boundary of countercurrent water flows induced by natural circulation. The conditions of poorer cooling of the thermosiphon heating zone due to steam separation at its upper generatrix are examined. A decrease in the mass filling of the thermosiphon, i.e., an increase in the average void fraction of the medium in it, successively leads to the onset of bubbling steam condensation within the transport section and then in the cooling zone, with a decrease in the length of the upper section of nonboiling water. A transition to film condensation of steam occurs at the limit along the entire length of the cooling zone with a countercurrent steam flow and a near-wall film of its condensate above the level of the steam–water mixture in the thermosiphon.</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Lychakov, V. D.</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Shcheglov, A. A.</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Matyash, A. S.</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Egorov, M. Yu.</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Borisov, A. O.</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">High temperature</subfield><subfield code="d">Pleiades Publishing, 1964</subfield><subfield code="g">58(2020), 3 vom: Mai, Seite 360-368</subfield><subfield code="w">(DE-627)129595012</subfield><subfield code="w">(DE-600)240595-7</subfield><subfield code="w">(DE-576)015087913</subfield><subfield code="x">0018-151X</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:58</subfield><subfield code="g">year:2020</subfield><subfield code="g">number:3</subfield><subfield code="g">month:05</subfield><subfield code="g">pages:360-368</subfield></datafield><datafield tag="856" ind1="4" ind2="1"><subfield code="u">https://doi.org/10.1134/S0018151X20030049</subfield><subfield code="z">lizenzpflichtig</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_OLC</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-TEC</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-PHY</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">58</subfield><subfield code="j">2020</subfield><subfield code="e">3</subfield><subfield code="c">05</subfield><subfield code="h">360-368</subfield></datafield></record></collection>
|
| author |
Balunov, B. F. |
| spellingShingle |
Balunov, B. F. ddc 620 Natural Circulation of a Fluid in a Thermosiphon Slightly Inclined to the Horizontal |
| authorStr |
Balunov, B. F. |
| ppnlink_with_tag_str_mv |
@@773@@(DE-627)129595012 |
| format |
Article |
| dewey-ones |
620 - Engineering & allied operations |
| delete_txt_mv |
keep |
| author_role |
aut aut aut aut aut aut |
| collection |
OLC |
| remote_str |
false |
| illustrated |
Not Illustrated |
| issn |
0018-151X |
| topic_title |
620 VZ Natural Circulation of a Fluid in a Thermosiphon Slightly Inclined to the Horizontal |
| topic |
ddc 620 |
| topic_unstemmed |
ddc 620 |
| topic_browse |
ddc 620 |
| format_facet |
Aufsätze Gedruckte Aufsätze |
| format_main_str_mv |
Text Zeitschrift/Artikel |
| carriertype_str_mv |
nc |
| hierarchy_parent_title |
High temperature |
| hierarchy_parent_id |
129595012 |
| dewey-tens |
620 - Engineering |
| hierarchy_top_title |
High temperature |
| isfreeaccess_txt |
false |
| familylinks_str_mv |
(DE-627)129595012 (DE-600)240595-7 (DE-576)015087913 |
| title |
Natural Circulation of a Fluid in a Thermosiphon Slightly Inclined to the Horizontal |
| ctrlnum |
(DE-627)OLC2119240167 (DE-He213)S0018151X20030049-p |
| title_full |
Natural Circulation of a Fluid in a Thermosiphon Slightly Inclined to the Horizontal |
| author_sort |
Balunov, B. F. |
| journal |
High temperature |
| journalStr |
High temperature |
| lang_code |
eng |
| isOA_bool |
false |
| dewey-hundreds |
600 - Technology |
| recordtype |
marc |
| publishDateSort |
2020 |
| contenttype_str_mv |
txt |
| container_start_page |
360 |
| author_browse |
Balunov, B. F. Lychakov, V. D. Shcheglov, A. A. Matyash, A. S. Egorov, M. Yu. Borisov, A. O. |
| container_volume |
58 |
| class |
620 VZ |
| format_se |
Aufsätze |
| author-letter |
Balunov, B. F. |
| doi_str_mv |
10.1134/S0018151X20030049 |
| dewey-full |
620 |
| title_sort |
natural circulation of a fluid in a thermosiphon slightly inclined to the horizontal |
| title_auth |
Natural Circulation of a Fluid in a Thermosiphon Slightly Inclined to the Horizontal |
| abstract |
Abstract A pronounced stratification of the temperature (density) of the fluid over the cross section of the heating zone occurs in a thermosyphon that is slightly inclined to the horizontal and has a high degree of water filling, which leads to the onset of natural circulation of the medium along the length of the thermosiphon. In this case, there is an upward flow of water or a steam–water mixture in the upper part of the thermosiphon and a downward flow in the lower part. In experiments with a full-scale thermosiphon, the natural circulation in question increased the axial heat transfer through nonboiling water along all thermosiphon zones by three to seven times as compared to the heat transfer in a vertical thermosiphon. The estimated mass flow rate of natural circulation along the heating zone ranged from 25 to 105 kg/($ m^{2} $ s). The heat-transfer coefficient and friction factor are estimated at the boundary of countercurrent water flows induced by natural circulation. The conditions of poorer cooling of the thermosiphon heating zone due to steam separation at its upper generatrix are examined. A decrease in the mass filling of the thermosiphon, i.e., an increase in the average void fraction of the medium in it, successively leads to the onset of bubbling steam condensation within the transport section and then in the cooling zone, with a decrease in the length of the upper section of nonboiling water. A transition to film condensation of steam occurs at the limit along the entire length of the cooling zone with a countercurrent steam flow and a near-wall film of its condensate above the level of the steam–water mixture in the thermosiphon. © Pleiades Publishing, Ltd. 2020 |
| abstractGer |
Abstract A pronounced stratification of the temperature (density) of the fluid over the cross section of the heating zone occurs in a thermosyphon that is slightly inclined to the horizontal and has a high degree of water filling, which leads to the onset of natural circulation of the medium along the length of the thermosiphon. In this case, there is an upward flow of water or a steam–water mixture in the upper part of the thermosiphon and a downward flow in the lower part. In experiments with a full-scale thermosiphon, the natural circulation in question increased the axial heat transfer through nonboiling water along all thermosiphon zones by three to seven times as compared to the heat transfer in a vertical thermosiphon. The estimated mass flow rate of natural circulation along the heating zone ranged from 25 to 105 kg/($ m^{2} $ s). The heat-transfer coefficient and friction factor are estimated at the boundary of countercurrent water flows induced by natural circulation. The conditions of poorer cooling of the thermosiphon heating zone due to steam separation at its upper generatrix are examined. A decrease in the mass filling of the thermosiphon, i.e., an increase in the average void fraction of the medium in it, successively leads to the onset of bubbling steam condensation within the transport section and then in the cooling zone, with a decrease in the length of the upper section of nonboiling water. A transition to film condensation of steam occurs at the limit along the entire length of the cooling zone with a countercurrent steam flow and a near-wall film of its condensate above the level of the steam–water mixture in the thermosiphon. © Pleiades Publishing, Ltd. 2020 |
| abstract_unstemmed |
Abstract A pronounced stratification of the temperature (density) of the fluid over the cross section of the heating zone occurs in a thermosyphon that is slightly inclined to the horizontal and has a high degree of water filling, which leads to the onset of natural circulation of the medium along the length of the thermosiphon. In this case, there is an upward flow of water or a steam–water mixture in the upper part of the thermosiphon and a downward flow in the lower part. In experiments with a full-scale thermosiphon, the natural circulation in question increased the axial heat transfer through nonboiling water along all thermosiphon zones by three to seven times as compared to the heat transfer in a vertical thermosiphon. The estimated mass flow rate of natural circulation along the heating zone ranged from 25 to 105 kg/($ m^{2} $ s). The heat-transfer coefficient and friction factor are estimated at the boundary of countercurrent water flows induced by natural circulation. The conditions of poorer cooling of the thermosiphon heating zone due to steam separation at its upper generatrix are examined. A decrease in the mass filling of the thermosiphon, i.e., an increase in the average void fraction of the medium in it, successively leads to the onset of bubbling steam condensation within the transport section and then in the cooling zone, with a decrease in the length of the upper section of nonboiling water. A transition to film condensation of steam occurs at the limit along the entire length of the cooling zone with a countercurrent steam flow and a near-wall film of its condensate above the level of the steam–water mixture in the thermosiphon. © Pleiades Publishing, Ltd. 2020 |
| collection_details |
GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY |
| container_issue |
3 |
| title_short |
Natural Circulation of a Fluid in a Thermosiphon Slightly Inclined to the Horizontal |
| url |
https://doi.org/10.1134/S0018151X20030049 |
| remote_bool |
false |
| author2 |
Lychakov, V. D. Shcheglov, A. A. Matyash, A. S. Egorov, M. Yu Borisov, A. O. |
| author2Str |
Lychakov, V. D. Shcheglov, A. A. Matyash, A. S. Egorov, M. Yu Borisov, A. O. |
| ppnlink |
129595012 |
| mediatype_str_mv |
n |
| isOA_txt |
false |
| hochschulschrift_bool |
false |
| doi_str |
10.1134/S0018151X20030049 |
| up_date |
2024-07-04T00:00:35.300Z |
| _version_ |
1803604444106981379 |
| fullrecord_marcxml |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000naa a22002652 4500</leader><controlfield tag="001">OLC2119240167</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230504165535.0</controlfield><controlfield tag="007">tu</controlfield><controlfield tag="008">230504s2020 xx ||||| 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1134/S0018151X20030049</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)OLC2119240167</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-He213)S0018151X20030049-p</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">620</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Balunov, B. F.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Natural Circulation of a Fluid in a Thermosiphon Slightly Inclined to the Horizontal</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2020</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">ohne Hilfsmittel zu benutzen</subfield><subfield code="b">n</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Band</subfield><subfield code="b">nc</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">© Pleiades Publishing, Ltd. 2020</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Abstract A pronounced stratification of the temperature (density) of the fluid over the cross section of the heating zone occurs in a thermosyphon that is slightly inclined to the horizontal and has a high degree of water filling, which leads to the onset of natural circulation of the medium along the length of the thermosiphon. In this case, there is an upward flow of water or a steam–water mixture in the upper part of the thermosiphon and a downward flow in the lower part. In experiments with a full-scale thermosiphon, the natural circulation in question increased the axial heat transfer through nonboiling water along all thermosiphon zones by three to seven times as compared to the heat transfer in a vertical thermosiphon. The estimated mass flow rate of natural circulation along the heating zone ranged from 25 to 105 kg/($ m^{2} $ s). The heat-transfer coefficient and friction factor are estimated at the boundary of countercurrent water flows induced by natural circulation. The conditions of poorer cooling of the thermosiphon heating zone due to steam separation at its upper generatrix are examined. A decrease in the mass filling of the thermosiphon, i.e., an increase in the average void fraction of the medium in it, successively leads to the onset of bubbling steam condensation within the transport section and then in the cooling zone, with a decrease in the length of the upper section of nonboiling water. A transition to film condensation of steam occurs at the limit along the entire length of the cooling zone with a countercurrent steam flow and a near-wall film of its condensate above the level of the steam–water mixture in the thermosiphon.</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Lychakov, V. D.</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Shcheglov, A. A.</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Matyash, A. S.</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Egorov, M. Yu.</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Borisov, A. O.</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">High temperature</subfield><subfield code="d">Pleiades Publishing, 1964</subfield><subfield code="g">58(2020), 3 vom: Mai, Seite 360-368</subfield><subfield code="w">(DE-627)129595012</subfield><subfield code="w">(DE-600)240595-7</subfield><subfield code="w">(DE-576)015087913</subfield><subfield code="x">0018-151X</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:58</subfield><subfield code="g">year:2020</subfield><subfield code="g">number:3</subfield><subfield code="g">month:05</subfield><subfield code="g">pages:360-368</subfield></datafield><datafield tag="856" ind1="4" ind2="1"><subfield code="u">https://doi.org/10.1134/S0018151X20030049</subfield><subfield code="z">lizenzpflichtig</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_OLC</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-TEC</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-PHY</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">58</subfield><subfield code="j">2020</subfield><subfield code="e">3</subfield><subfield code="c">05</subfield><subfield code="h">360-368</subfield></datafield></record></collection>
|
| score |
7.4005327 |