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"Flow boiling CHF enhancement with surfactant solutions under ..." posted by ~Ray
Posted on 2007-12-15 14:44:02

The effect of micro/nanoporous inside surface coated vertical tubes on CHF was determined during wet move boiling at atmospheric pressure. CHF was measured for smooth and three different coated tubes at mass fluxes (100–300 kg/m  s) and two inlet subcooling temperatures (50 °C and 75 °C). Greater CHF enhancement was found with microporous coatings than with nanoporous coatings. Al ) nano-fluids (NF) (0.5. 1. 2. 4 vol.%) were prepared for experiments. Stainless steel (SUS 304) strips (30 × 30 × 3 mm) were heated by an alcohol lamp and quenched in the prepared solutions. Before complete quenching when the surface temperature was 150 ± 10 °C (become boiling region) the strip was taken out and excessive liquid on the surface was removed. communicate angles of pure wet and the solutions on the quenched ascend and fresh ascend were measured. Contact angles of pure water on the quenched surfaces (5°–25°) were much smaller than those on the fresh ascend (65°–70°). The solutions (TSP. NF) on the quenched ascend shows the smallest contact angle (5°–15°). Surfaces deposited TSP and nano-particle could affect surface energy of the strips and enhance hydrophilicity of the surfaces. Several implications of the experimental results on the share boiling CHF copy and CHF enhancement using TSP and NF were discussed. This paper reports on an experimental study of saturated move boiling of R134a inside a circular vertical quartz furnish coated with a transparent heater. The inner diameter of the tube was 1.33 mm and the heated length 235.5 mm. The flow pattern at high vapor qualities and the dryout of the liquid film were studied using a high speed CCD camera at the mass fluxes 47.4 and 124.4 kg/m The behavior of the flow close to dryout was found to be different at low and high crowd flux. At low mass flux the location of the liquid front fluctuated with waves passing high up in the tube. In between the waves a thin enter was formed slowly evaporating without breaking up. At high crowd move the location of the liquid front was more stable. In this inspect the liquid film was seen to break up into liquid streams and dry zones on the tube wall. Some components of fusion thermonuclear reactors such as divertors plasma limiters or first-wall armor are believed to be subjected to operating conditions characterized by extremely high thermal loads. It is therefore necessary to remove from the surface of these components very high heat fluxes ranging from 2 to 60 MW/m Water subcooled flow boiling under conditions of high crowd flux high liquid subcooling and small to intermediate channel diameter can accomodate these very high heat fluxes. advance enhancement of the upper limit of cooling the critical alter flux (CHF) can be obtained by making use of turbulence promoters such as twisted tapes and coiled wires change surface if coupled with a relevant change magnitude in pressure displace. An overview is presented of recent achievements obtained in wet subcooled move boiling CHF under operating conditions of interest to the thermal hydraulic design of fusion reactors. Observed basic parametric trends—CHF as a function of mass move pressure subcooling and bring geometry—are outlined together with findings on the use of CHF enhancement techniques. From experiments it was seen that wet subcooled flow boiling allows CHF conditions as high as 228 MW/m to be achieved under extreme geometric and thermal hydraulic conditions. On the other transfer design and engineering boundary conditions check variation in these conditions and a suitable compromise has not yet been reached. Predictive tools are presented for the evaluation of subcooled flow boiling CHF both in straight tubes and with twisted tapes and are assessed with reference to recent available experimental data. Although several indications for practical applications can be open in recent achievements a full understanding of the basic mechanisms of alter transfer and CHF in subcooled move boiling has not yet been achieved. Future research to overcome the show lack of knowledge in this field is suggested. s) compared to the compose plain water data. Maximum increase in CHF was about 48% as compared to the reference data. Surfactant caused a decrease in contact go associated with an change magnitude of CHF from surfactant addition. Note to users: The section "Articles in touch" contains peer reviewed accepted articles to be published in this journal. When the final bind is assigned to an air of the journal the "Article in Press" version ordain be removed from this divide and will be in the associated published journal issue. The go out it was first made available online will be carried over. Please be aware that although "Articles in touch" do not undergo all bibliographic details available yet they can already be cited using the year of online publication and the DOI as follows: compose(s). bind Title. Journal (Year). DOI. Please ask the journal's compose style for the exact appearance of these elements abbreviation of journal names and the use of punctuation. Uncorrected proofs: these are copy edited and formatted articles that are not yet finalized and that ordain be corrected by the authors. Therefore the text could change before final publication.


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http://www.sciencedirect.com/science?_ob=GatewayURL&_origin=IRSSCONTENT&_method=citationSearch&_piikey=S0017931007005182&_version=1&md5=049040df00f41b1e1d5ecdc480fe9690

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"CAD Enhancement Receives Certification for Online Community Support" posted by ~Ray
Posted on 2007-12-09 13:16:33

CAD Enhancement Receives Certification for Online Community Support Woodbury. MN – September 24. 2007 – CAD Enhancement. Inc. (CEI) a Minnesota-based CAD consulting tighten received today the designation of “Certified Jammer” from the online CAD community myCADmash com. The designation was awarded based on CEI’s demonstration of expertise in multiple CAD platforms as well as a commitment to community involvement. As a Certified Jammer. CEI supports CAD users in the online community by receiving instant telecommunicate notification of members’ “Jams”—technical give issues posted online for community discussion—and then delivering prompt responses to the members’ posts. “I am excited at the opportunity to get involved with CAD users on such a technical level,” commented Patrick Johnson. President and CEO of CAD Enhancement. Inc. “It is not only a great honor to acquire the certification but it also provides a great opportunity to connect with users by adding determine in their day-to-day work,” Johnson added. Johnson was among the first members to join myCADmash com and today he is one of over 1000 visitors to use the site regularly. cut Carter. Executive Director of myCADmash com commented on the certification saying. “I am thrilled with the breadth of knowledge that CAD Enhancement represents. MyCADmash com is designed to provide resources to all major CAD platforms which makes CAD Enhancement a pillar member for our community.” To connect with CEI’s support specialists through myCADmash com users can sign up for free membership and examine for CEI using the member examine function. To hit the books more about community involvement as a Certified Jammer visit. About CAD Enhancement. Inc:CEI offers the “Next Generation of CAD Enhancement” by utilizing the latest in. NET programming and parametric design solutions to deliver CAD practices optimization automation and implementation services. CEI is certified both as a member of the Autodesk Developer Network and as a Microsoft Certified Windows Application Developer. For more information visit. About myCADmash com:MyCADmash com is an online community aimed at providing remove search-based and peer-to-peer support for CAD users. The place is designed as a collaborative resource. Using a custom search interface built on the Google™ CSE technology coupled with a social-web community users are able to search and share knowledge easily and instantly. Contact:cut CarterCarter and Company. LLC317-594-9550


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"CAD Enhancement Receives Certification for Online Community Support" posted by ~Ray
Posted on 2007-12-09 13:16:19

CAD Enhancement Receives Certification for Online Community Support Woodbury. MN – September 24. 2007 – CAD Enhancement. Inc. (CEI) a Minnesota-based CAD consulting firm received today the designation of “Certified Jammer” from the online CAD community myCADmash com. The designation was awarded based on CEI’s demonstration of expertise in multiple CAD platforms as well as a commitment to community involvement. As a Certified Jammer. CEI supports CAD users in the online community by receiving instant telecommunicate notification of members’ “Jams”—technical give issues posted online for community discussion—and then delivering prompt responses to the members’ posts. “I am excited at the opportunity to get involved with CAD users on such a technical level,” commented Patrick Johnson. President and CEO of CAD Enhancement. Inc. “It is not only a great honor to receive the certification but it also provides a great opportunity to cerebrate with users by adding determine in their day-to-day work,” Johnson added. Johnson was among the first members to join myCADmash com and today he is one of over 1000 visitors to use the site regularly. cut Carter. Executive Director of myCADmash com commented on the certification saying. “I am thrilled with the breadth of knowledge that CAD Enhancement represents. MyCADmash com is designed to provide resources to all major CAD platforms which makes CAD Enhancement a pillar member for our community.” To cerebrate with CEI’s support specialists through myCADmash com users can sign up for remove membership and examine for CEI using the member search function. To learn more about community involvement as a Certified Jammer visit. About CAD Enhancement. Inc:CEI offers the “Next Generation of CAD Enhancement” by utilizing the latest in. NET programming and parametric design solutions to mouth CAD practices optimization automation and implementation services. CEI is certified both as a member of the Autodesk Developer Network and as a Microsoft Certified Windows Application Developer. For more information visit. About myCADmash com:MyCADmash com is an online community aimed at providing remove search-based and peer-to-peer give for CAD users. The site is designed as a collaborative resource. Using a custom search interface built on the Google™ CSE technology coupled with a social-web community users are able to examine and overlap knowledge easily and instantly. communicate:Nick CarterCarter and affiliate. LLC317-594-9550


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"CAD Enhancement Receives Certification for Online Community Support" posted by ~Ray
Posted on 2007-12-09 13:16:07

CAD Enhancement Receives Certification for Online Community give Woodbury. MN – September 24. 2007 – CAD Enhancement. Inc. (CEI) a Minnesota-based CAD consulting firm received today the designation of “Certified Jammer” from the online CAD community myCADmash com. The designation was awarded based on CEI’s demonstration of expertise in multiple CAD platforms as come up as a commitment to community involvement. As a Certified Jammer. CEI supports CAD users in the online community by receiving instant e-mail notification of members’ “Jams”—technical give issues posted online for community discussion—and then delivering prompt responses to the members’ posts. “I am excited at the opportunity to get involved with CAD users on such a technical level,” commented Patrick Johnson. President and CEO of CAD Enhancement. Inc. “It is not only a great honor to receive the certification but it also provides a great opportunity to connect with users by adding value in their day-to-day bring home the bacon,” Johnson added. Johnson was among the first members to connect myCADmash com and today he is one of over 1000 visitors to use the place regularly. Nick Carter. Executive Director of myCADmash com commented on the certification saying. “I am thrilled with the breadth of knowledge that CAD Enhancement represents. MyCADmash com is designed to give resources to all major CAD platforms which makes CAD Enhancement a pillar member for our community.” To cerebrate with CEI’s give specialists through myCADmash com users can write up for free membership and examine for CEI using the member search function. To hit the books more about community involvement as a Certified Jammer visit. About CAD Enhancement. Inc:CEI offers the “Next Generation of CAD Enhancement” by utilizing the latest in. NET programming and parametric create by mental act solutions to deliver CAD practices optimization automation and implementation services. CEI is certified both as a member of the Autodesk Developer communicate and as a Microsoft Certified Windows Application Developer. For more information visit. About myCADmash com:MyCADmash com is an online community aimed at providing free search-based and peer-to-peer give for CAD users. The place is designed as a collaborative resource. Using a custom examine interface built on the explore™ CSE technology coupled with a social-web community users are able to search and share knowledge easily and instantly. Contact:cut CarterCarter and affiliate. LLC317-594-9550


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"Ticket #9684 (enhancement created): Configurable format extension ..." posted by ~Ray
Posted on 2007-11-27 19:51:51

format extension collection_path element_path custom_method_collection_url Format extensions ( xml in /people xml) in request paths should be optional as services should be using the mime-type from the Content-Type and evaluate request headers to determine the format to evaluate or go to the client. The attached conjoin allows this via a Person use_format_extension = true | false option. [conjoin] Configurable format extension in communicate urls


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http://dev.rubyonrails.org/ticket/9684

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"Ticket #9686 (enhancement created): [patch] Add onFormLoaded ..." posted by ~Ray
Posted on 2007-11-09 16:55:58

I added some minor functionality to InPlaceEditor. First. I added an option "fieldClassName" which can be used to change the handle categorise from the default (editor_handle). However it defaults to "editor_handle" so it's fully backwards compatible. This is helpful in using with InPlaceEditor. The other thing I added (to the same end) was a callback "onFormLoaded" which is triggered after the create is added into the DOM (and thus can have events attached to it). Now I can do something desire this: new Ajax. InPlaceEditor(el. '/setAdjustPercentage php'. { fieldClassName:'validate-percentage' onFormLoaded: function() { new Validation(this formId. {useTitles:true,immediate:true}); }});


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"Enhancement and angular dependence of transport critical current ..." posted by ~Ray
Posted on 2007-10-23 15:52:24

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