Pitch-to-diameter effect on two-phase flow across an in-line tube bundle
Void fraction and friction pressure drop measurements were made for an adiabatic, vertical two‐phase flow of air‐water across two horizontal, in‐line, 5 × 20 rod bundles, one with a pitch‐to‐diameter ratio, P/D, of 1.3, the other 1.75. For both bundles the average void fraction showed a strong mass...
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| Veröffentlicht in: | AIChE journal 1990-05, Vol.36 (5), p.765-772 |
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| creator | Dowlati, Ramin Kawaji, Masahiro Chan, Albert M. C. |
| description | Void fraction and friction pressure drop measurements were made for an adiabatic, vertical two‐phase flow of air‐water across two horizontal, in‐line, 5 × 20 rod bundles, one with a pitch‐to‐diameter ratio, P/D, of 1.3, the other 1.75. For both bundles the average void fraction showed a strong mass velocity effect and values were significantly less than those predicted by a homogeneous flow model. All void fraction data were found to be well correlated, with no P/D effect, using the dimensionless gas velocity, j*g. The two‐phase friction multiplier data exhibited a strong effect of P/D and mass velocity, however, the data for both bundles could be well correlated with the Martinelli parameter for G > 200 kg/m2s. The correlations developed for void fraction and two‐phase friction multiplier were successfully tested in predicting the total pressure drop in boiling freon experiments. |
| doi_str_mv | 10.1002/aic.690360513 |
| format | Article |
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C.</creator><creatorcontrib>Dowlati, Ramin ; Kawaji, Masahiro ; Chan, Albert M. C.</creatorcontrib><description>Void fraction and friction pressure drop measurements were made for an adiabatic, vertical two‐phase flow of air‐water across two horizontal, in‐line, 5 × 20 rod bundles, one with a pitch‐to‐diameter ratio, P/D, of 1.3, the other 1.75. For both bundles the average void fraction showed a strong mass velocity effect and values were significantly less than those predicted by a homogeneous flow model. All void fraction data were found to be well correlated, with no P/D effect, using the dimensionless gas velocity, j*g. The two‐phase friction multiplier data exhibited a strong effect of P/D and mass velocity, however, the data for both bundles could be well correlated with the Martinelli parameter for G > 200 kg/m2s. The correlations developed for void fraction and two‐phase friction multiplier were successfully tested in predicting the total pressure drop in boiling freon experiments.</description><identifier>ISSN: 0001-1541</identifier><identifier>EISSN: 1547-5905</identifier><identifier>DOI: 10.1002/aic.690360513</identifier><identifier>CODEN: AICEAC</identifier><language>eng</language><publisher>New York: American Institute of Chemical Engineers</publisher><subject>220200 - Nuclear Reactor Technology- Components & Accessories ; 220900 - Nuclear Reactor Technology- Reactor Safety ; 420400 - Engineering- Heat Transfer & Fluid Flow ; ACCIDENTS ; Applied sciences ; BOILING ; Chemical engineering ; COOLING SYSTEMS ; DATA ; ENGINEERING ; Exact sciences and technology ; EXPERIMENTAL DATA ; FLOW MODELS ; FLUID FLOW ; FREONS ; FRICTION ; GENERAL STUDIES OF NUCLEAR REACTORS ; HALOGENATED ALIPHATIC HYDROCARBONS ; Hydrodynamics of contact apparatus ; INFORMATION ; MASS TRANSFER ; MATHEMATICAL MODELS ; NUCLEATE BOILING ; NUMERICAL DATA ; ORGANIC COMPOUNDS ; ORGANIC HALOGEN COMPOUNDS ; PHASE TRANSFORMATIONS ; PHASE VELOCITY ; PIPELINES ; PRESSURE DROP ; REACTOR ACCIDENTS ; REACTOR COMPONENTS ; REACTOR COOLING SYSTEMS ; REACTOR SAFETY EXPERIMENTS ; ROD BUNDLES ; TWO-PHASE FLOW ; VELOCITY ; VOID FRACTION</subject><ispartof>AIChE journal, 1990-05, Vol.36 (5), p.765-772</ispartof><rights>Copyright © 1990 American Institute of Chemical Engineers</rights><rights>1990 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3943-7e59ed578533d4a0aa96bebef9f55490132a8c759ed6e13deb4fbcb8a13aaf6d3</citedby><cites>FETCH-LOGICAL-c3943-7e59ed578533d4a0aa96bebef9f55490132a8c759ed6e13deb4fbcb8a13aaf6d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Faic.690360513$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Faic.690360513$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>230,314,780,784,885,1417,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=6845302$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/5540447$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Dowlati, Ramin</creatorcontrib><creatorcontrib>Kawaji, Masahiro</creatorcontrib><creatorcontrib>Chan, Albert M. C.</creatorcontrib><title>Pitch-to-diameter effect on two-phase flow across an in-line tube bundle</title><title>AIChE journal</title><addtitle>AIChE J</addtitle><description>Void fraction and friction pressure drop measurements were made for an adiabatic, vertical two‐phase flow of air‐water across two horizontal, in‐line, 5 × 20 rod bundles, one with a pitch‐to‐diameter ratio, P/D, of 1.3, the other 1.75. For both bundles the average void fraction showed a strong mass velocity effect and values were significantly less than those predicted by a homogeneous flow model. All void fraction data were found to be well correlated, with no P/D effect, using the dimensionless gas velocity, j*g. The two‐phase friction multiplier data exhibited a strong effect of P/D and mass velocity, however, the data for both bundles could be well correlated with the Martinelli parameter for G > 200 kg/m2s. The correlations developed for void fraction and two‐phase friction multiplier were successfully tested in predicting the total pressure drop in boiling freon experiments.</description><subject>220200 - Nuclear Reactor Technology- Components & Accessories</subject><subject>220900 - Nuclear Reactor Technology- Reactor Safety</subject><subject>420400 - Engineering- Heat Transfer & Fluid Flow</subject><subject>ACCIDENTS</subject><subject>Applied sciences</subject><subject>BOILING</subject><subject>Chemical engineering</subject><subject>COOLING SYSTEMS</subject><subject>DATA</subject><subject>ENGINEERING</subject><subject>Exact sciences and technology</subject><subject>EXPERIMENTAL DATA</subject><subject>FLOW MODELS</subject><subject>FLUID FLOW</subject><subject>FREONS</subject><subject>FRICTION</subject><subject>GENERAL STUDIES OF NUCLEAR REACTORS</subject><subject>HALOGENATED ALIPHATIC HYDROCARBONS</subject><subject>Hydrodynamics of contact apparatus</subject><subject>INFORMATION</subject><subject>MASS TRANSFER</subject><subject>MATHEMATICAL MODELS</subject><subject>NUCLEATE BOILING</subject><subject>NUMERICAL DATA</subject><subject>ORGANIC COMPOUNDS</subject><subject>ORGANIC HALOGEN COMPOUNDS</subject><subject>PHASE TRANSFORMATIONS</subject><subject>PHASE VELOCITY</subject><subject>PIPELINES</subject><subject>PRESSURE DROP</subject><subject>REACTOR ACCIDENTS</subject><subject>REACTOR COMPONENTS</subject><subject>REACTOR COOLING SYSTEMS</subject><subject>REACTOR SAFETY EXPERIMENTS</subject><subject>ROD BUNDLES</subject><subject>TWO-PHASE FLOW</subject><subject>VELOCITY</subject><subject>VOID FRACTION</subject><issn>0001-1541</issn><issn>1547-5905</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1990</creationdate><recordtype>article</recordtype><recordid>eNp9kM1LAzEQxYMoWKtH70G8RpPNZrN7LEVrtfgBit7CbHZCo9vdsonU_veuthRPnoYZfu_N4xFyKviF4Dy5BG8vsoLLjCsh98hAqFQzVXC1Twacc8H6gzgkRyG891ui82RAbh59tHMWW1Z5WGDEjqJzaCNtGxpXLVvOISB1dbuiYLs2BAoN9Q2rfYM0fpZIy8-mqvGYHDioA55s55C8XF89j2_Y7GEyHY9mzMoilUyjKrBSOldSVilwgCIrsURXOKXSgguZQG71D5ShkBWWqSttmYOQAC6r5JCcbXzbEL0J1ke0c9s2TZ_Z9BY8TXUPsQ30m7hDZ5adX0C3NoKbn65M35XZddXz5xt-CcFC7TporA87UZanSvKkx_QGW_ka1_97mtF0_PfBNpAPEb92Sug-TKalVub1fmLeJq9Pxe3szjzJbxXriKY</recordid><startdate>199005</startdate><enddate>199005</enddate><creator>Dowlati, Ramin</creator><creator>Kawaji, Masahiro</creator><creator>Chan, Albert M. C.</creator><general>American Institute of Chemical Engineers</general><general>Wiley Subscription Services</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>199005</creationdate><title>Pitch-to-diameter effect on two-phase flow across an in-line tube bundle</title><author>Dowlati, Ramin ; Kawaji, Masahiro ; Chan, Albert M. C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3943-7e59ed578533d4a0aa96bebef9f55490132a8c759ed6e13deb4fbcb8a13aaf6d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1990</creationdate><topic>220200 - Nuclear Reactor Technology- Components & Accessories</topic><topic>220900 - Nuclear Reactor Technology- Reactor Safety</topic><topic>420400 - Engineering- Heat Transfer & Fluid Flow</topic><topic>ACCIDENTS</topic><topic>Applied sciences</topic><topic>BOILING</topic><topic>Chemical engineering</topic><topic>COOLING SYSTEMS</topic><topic>DATA</topic><topic>ENGINEERING</topic><topic>Exact sciences and technology</topic><topic>EXPERIMENTAL DATA</topic><topic>FLOW MODELS</topic><topic>FLUID FLOW</topic><topic>FREONS</topic><topic>FRICTION</topic><topic>GENERAL STUDIES OF NUCLEAR REACTORS</topic><topic>HALOGENATED ALIPHATIC HYDROCARBONS</topic><topic>Hydrodynamics of contact apparatus</topic><topic>INFORMATION</topic><topic>MASS TRANSFER</topic><topic>MATHEMATICAL MODELS</topic><topic>NUCLEATE BOILING</topic><topic>NUMERICAL DATA</topic><topic>ORGANIC COMPOUNDS</topic><topic>ORGANIC HALOGEN COMPOUNDS</topic><topic>PHASE TRANSFORMATIONS</topic><topic>PHASE VELOCITY</topic><topic>PIPELINES</topic><topic>PRESSURE DROP</topic><topic>REACTOR ACCIDENTS</topic><topic>REACTOR COMPONENTS</topic><topic>REACTOR COOLING SYSTEMS</topic><topic>REACTOR SAFETY EXPERIMENTS</topic><topic>ROD BUNDLES</topic><topic>TWO-PHASE FLOW</topic><topic>VELOCITY</topic><topic>VOID FRACTION</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Dowlati, Ramin</creatorcontrib><creatorcontrib>Kawaji, Masahiro</creatorcontrib><creatorcontrib>Chan, Albert M. C.</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>AIChE journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Dowlati, Ramin</au><au>Kawaji, Masahiro</au><au>Chan, Albert M. C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Pitch-to-diameter effect on two-phase flow across an in-line tube bundle</atitle><jtitle>AIChE journal</jtitle><addtitle>AIChE J</addtitle><date>1990-05</date><risdate>1990</risdate><volume>36</volume><issue>5</issue><spage>765</spage><epage>772</epage><pages>765-772</pages><issn>0001-1541</issn><eissn>1547-5905</eissn><coden>AICEAC</coden><abstract>Void fraction and friction pressure drop measurements were made for an adiabatic, vertical two‐phase flow of air‐water across two horizontal, in‐line, 5 × 20 rod bundles, one with a pitch‐to‐diameter ratio, P/D, of 1.3, the other 1.75. For both bundles the average void fraction showed a strong mass velocity effect and values were significantly less than those predicted by a homogeneous flow model. All void fraction data were found to be well correlated, with no P/D effect, using the dimensionless gas velocity, j*g. The two‐phase friction multiplier data exhibited a strong effect of P/D and mass velocity, however, the data for both bundles could be well correlated with the Martinelli parameter for G > 200 kg/m2s. The correlations developed for void fraction and two‐phase friction multiplier were successfully tested in predicting the total pressure drop in boiling freon experiments.</abstract><cop>New York</cop><pub>American Institute of Chemical Engineers</pub><doi>10.1002/aic.690360513</doi><tpages>8</tpages></addata></record> |
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| subjects | 220200 - Nuclear Reactor Technology- Components & Accessories 220900 - Nuclear Reactor Technology- Reactor Safety 420400 - Engineering- Heat Transfer & Fluid Flow ACCIDENTS Applied sciences BOILING Chemical engineering COOLING SYSTEMS DATA ENGINEERING Exact sciences and technology EXPERIMENTAL DATA FLOW MODELS FLUID FLOW FREONS FRICTION GENERAL STUDIES OF NUCLEAR REACTORS HALOGENATED ALIPHATIC HYDROCARBONS Hydrodynamics of contact apparatus INFORMATION MASS TRANSFER MATHEMATICAL MODELS NUCLEATE BOILING NUMERICAL DATA ORGANIC COMPOUNDS ORGANIC HALOGEN COMPOUNDS PHASE TRANSFORMATIONS PHASE VELOCITY PIPELINES PRESSURE DROP REACTOR ACCIDENTS REACTOR COMPONENTS REACTOR COOLING SYSTEMS REACTOR SAFETY EXPERIMENTS ROD BUNDLES TWO-PHASE FLOW VELOCITY VOID FRACTION |
| title | Pitch-to-diameter effect on two-phase flow across an in-line tube bundle |
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