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(PDF) A look at three measurement techniques for bubble size determination | Alberto Vazquez Naranjo - Academia.edu
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The aim was to provide an accurate cross-calibration of two of the methods against a standard laboratory method. The inverted funnel method is the laboratory standard and performed within a 0.5% repeatability error for 50 bubble sets. The passive acoustic method performed within an accuracy between 97% and 99% with respect to the inverted funnel method. The photographic method gave an accuracy between 88% and 96%. After improvement of the photographic method by an empirical cutting edge criterion, its accuracy was raised between 95% and 99%. The bubble shape at detachment was found to be fitted by a CassiniÕs oval or by a BernoulliÕs lemniscate according to the formation time. Qualitative observations on the bubble formation stage indicated an early vertical nose growth for the larger diameter capillary tubes at short formation times. The major-axis vertical and horizontal lengths were measured as functions of time at the formation stage.","grobid_abstract_attachment_id":"33305558"},"document_type":"paper","pre_hit_view_count_baseline":null,"quality":"high","language":"en","title":"A look at three measurement techniques for bubble size determination","broadcastable":true,"draft":null,"has_indexable_attachment":true,"indexable":true}}["work"]; window.loswp.workCoauthors = [10302491]; window.loswp.locale = "en"; window.loswp.countryCode = "SG"; window.loswp.cwvAbTestBucket = ""; window.loswp.designVariant = "ds_vanilla"; window.loswp.fullPageMobileSutdModalVariant = "control"; window.loswp.useOptimizedScribd4genScript = false; window.loswp.appleClientId = 'edu.academia.applesignon';</script><script defer="" src="https://accounts.google.com/gsi/client"></script><div class="ds-loswp-container"><div class="ds-work-card--grid-container"><div class="ds-work-card--container js-loswp-work-card"><div 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href="https://www.academia.edu/62976232/A_method_for_bubble_volume_measurement_under_constant_flow_conditions_in_gas_liquid_two_phase_flow">A method for bubble volume measurement under constant flow conditions in gas–liquid two-phase flow</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="114725047" href="https://tehran.academia.edu/SeyedErfanHosseiniDoost">Seyed Erfan Hosseini-Doost</a></div><p class="ds-related-work--metadata ds2-5-body-xs">2018</p><p class="ds-related-work--abstract ds2-5-body-sm">Measuring the volume of a bubble, especially at its detachment, is a basic subject in gas-liquid two-phase flow research. A new indirect method for this measurement under constant flow conditions is presented. An electronic device is designed and constructed based on laser beam intensity. This device calculates the frequency of the bubble formation by measuring the total time of the formation process and counting the number of bubbles crossing the laser beam. The bubble volume at detachment can be calculated by dividing the volumetric flow rate of air by the frequency of bubble formation. The latter and the bubble volume at detachment are measured for three different heights of water above the the tip of the orifice (50, 100, and 150 mm), three orifice diameters (1, 2, and 3 mm), and different gas flow rates between 2000 and 10000 ml/hr. Comparing and validating the results with the results of the image processing (IP) method and the correlations presented by other studies shows the...</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"A method for bubble volume measurement under constant flow conditions in gas–liquid two-phase flow","attachmentId":75562375,"attachmentType":"pdf","work_url":"https://www.academia.edu/62976232/A_method_for_bubble_volume_measurement_under_constant_flow_conditions_in_gas_liquid_two_phase_flow","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/62976232/A_method_for_bubble_volume_measurement_under_constant_flow_conditions_in_gas_liquid_two_phase_flow"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="8" data-entity-id="30430094" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/30430094/Consideration_of_the_dynamic_forces_during_bubble_growth_in_a_capillary_tube">Consideration of the dynamic forces during bubble growth in a capillary tube</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="44907236" href="https://independent.academia.edu/ReneSanchez20">Rene Sanchez</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Chemical Engineering Science, 2010</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Consideration of the dynamic forces during bubble growth in a capillary tube","attachmentId":50873320,"attachmentType":"pdf","work_url":"https://www.academia.edu/30430094/Consideration_of_the_dynamic_forces_during_bubble_growth_in_a_capillary_tube","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/30430094/Consideration_of_the_dynamic_forces_during_bubble_growth_in_a_capillary_tube"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="9" data-entity-id="23113459" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/23113459/Development_of_an_acoustic_instrument_for_bubble_size_distribution_measurement">Development of an acoustic instrument for bubble size distribution measurement</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="44864613" href="https://independent.academia.edu/georgeschahine2">georges chahine</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Journal of Hydrodynamics, Ser. 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