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Relevant bibliographies by topics / Buble Absorbers

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Journal articles
Dissertations / Theses
Conference papers

Academic literature on the topic 'Buble Absorbers'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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Journal articles on the topic "Buble Absorbers"

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Sujatha, K. S., A. Mani, and S. Srinivasa Murthy. "Analysis of a bubble absorber working with R22 and five organic absorbents." Heat and Mass Transfer 32, no. 4 (1997): 255–59. http://dx.doi.org/10.1007/s002310050119.

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Merrill, T. L., T. Setoguchi, and H. Perez-Blanco. "Compact Bubble Absorber Design." Journal of Enhanced Heat Transfer 5, no. 4 (1998): 249–56. http://dx.doi.org/10.1615/jenhheattransf.v5.i4.30.

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Sujatha, K. S., A. Mani, and S. Srinivasa Murthy. "Experiments on a bubble absorber." International Communications in Heat and Mass Transfer 26, no. 7 (1999): 975–84. http://dx.doi.org/10.1016/s0735-1933(99)00087-1.

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Suresh, M., and A. Mani. "Experimental studies on bubble characteristics for R134a–DMF bubble absorber." Experimental Thermal and Fluid Science 39 (May 2012): 79–89. http://dx.doi.org/10.1016/j.expthermflusci.2012.01.011.

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Sujatha, K. S., A. Mani, and S. Srinivasa Murthy. "Finite element analysis of a bubble absorber." International Journal of Numerical Methods for Heat & Fluid Flow 7, no. 7 (1997): 737–50. http://dx.doi.org/10.1108/09615539710185622.

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Ben Jaballah, Rawya, Mohamed Bechir Ben Hamida, Jehad Saleh, and Mohammed A. Almeshaal. "Enhancement of the performance of bubble absorber using hybrid nanofluid as a cooled absorption system." International Journal of Numerical Methods for Heat & Fluid Flow 29, no. 10 (2019): 3857–71. http://dx.doi.org/10.1108/hff-05-2018-0212.

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Purpose The purpose of this paper is to investigate the enhancement of the performance of bubble absorber using hybrid nanofluid as a cooled NH3/H2O absorption system to reduce their size and to find the best fitting model. A numerical model for ammonia-water bubble absorber was developed to show the influence of operating conditions and design parameters on the absorber performance. Design/methodology/approach A finite difference numerical method is used to solve the numerical model. The model is subjected to the inlet conditions of liquid, vapor and coolant flow regimes. The absorber modelin

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Kiran Raj, M. "Porous superhydrophobic membranes as safe bubble absorbers for hydrocarbon industry." IOP Conference Series: Materials Science and Engineering 1132, no. 1 (2021): 012015. http://dx.doi.org/10.1088/1757-899x/1132/1/012015.

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Wu, Wei Dong, Zeng Yang Li, Sheng Xiang Chen, and Si Mei Liu. "Experimental Study on Ammonia-Water Bubble Absorption in External Magnetic Field." Advanced Materials Research 291-294 (July 2011): 1653–56. http://dx.doi.org/10.4028/www.scientific.net/amr.291-294.1653.

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Absorber is a key component of absorption refrigeration system, in which there is a complicated heat and mass transfer. To improve the performance of absorber, the magnetic field was used as a enhancing way, the experiments of NH3/H2O bubble absorption in magnetic field were carried out. The results showed that the NH3/H2O bubble absorption can be strengthened by the magnetic field. Both AR(absorption rate) and EAR(effective absorption ratio) increase with the increase of magnetic intensity within the range of 0~280mT. The EAR is always higher than 1 when the external magnetic field exists. Th

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Ihsana, Yukh, Putu Adhi Rama, Sugeng Winardi, and Tantular Nurtono. "Bubble column application on purification of biogas and production of nano-calcium carbonate in continuous process." Malaysian Journal of Fundamental and Applied Sciences 16, no. 3 (2020): 286–91. http://dx.doi.org/10.11113/mjfas.v16n3.1567.

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Purification of biogas by removing carbon dioxide content has been developed to increase its calorific value. The CO2 contained in biogas was absorbed by contacting Ca(OH)2 solution and CO2 in the bubble column to produce high purity of biogas and generated precipitated calcium carbonate (PCC) simultaneously. Two sources of CO2 were used in this work, which were CO2 contained in biogas and pure CO2. Pure CO2 was used as a benchmark in this study to show the effect of the presence of methane contained in biogas on the absorption process. The investigation was done in a continuous process. The r

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Takano, Shun, Ryosuke Ezure, Yusuke Takahashi, Hiroyuki Komatsu, Kazuaki Yamagiwa, and Hideo Tajima. "Study on Mass Transfer Characteristics of Hydrate-based Gas Absorber." MATEC Web of Conferences 333 (2021): 04002. http://dx.doi.org/10.1051/matecconf/202133304002.

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Hydrated-based gas separation is a method capable of selectively separating and recovering greenhouse gases. Although a conventional hydrate-based gas separation apparatus is a batch or a semi-batch system, continuous operation is preferable to increase the throughput of gas without changing the apparatus volume. Recently, we proposed a flow type apparatus to allow continuous operation of hydrate formation (absorption) and subsequent decomposition (desorption). The aim of this study is to investigate the mass transfer characteristics of the continuous apparatus using the HFC134a-N2 mixed gas s

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Dissertations / Theses on the topic "Buble Absorbers"

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Amaris, Castilla Carlos Fidel. "Intensification of NH3 bubble absorption process using advanced surfaces and carbon nanotubes for NH3/LINO3 absorption chillers." Doctoral thesis, Universitat Rovira i Virgili, 2013. http://hdl.handle.net/10803/128504.

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En la presente tesis doctoral se realiza un estudio experimental de la intensificación del proceso de absorción de amoniaco por parte de la mezcla NH3/LiNO3 en absorbedores de burbuja por medio del uso de superficies avanzadas y nanotubos de carbono. Las condiciones de operación de los ensayos experimentales fueron obtenidas a partir de una simulación termodinámica de un ciclo de absorción de simple efecto con NH3/LiNO3 a las condiciones de operación de interés para una enfriadora por absorción activada por fuentes de energía a baja temperatura y enfriada por aire. Los experimentos se llevar

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Hassoon, Hassan Majid. "A two-phase investigation relating to circulating bubble absorbers." Thesis, University of Bristol, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.232956.

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Ammari, Ali. "Experimental Investigation ofTwo-phase Flow in Microchannels“Co-current Absorption of Ammonia in Water to Design an Innovative Bubble Plate Absorber” : “Co-current Absorption of Ammonia in Water to Design an Innovative Bubble Plate Absorber”." Thesis, KTH, Tillämpad termodynamik och kylteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-116779.

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For ammonia-water absorption refrigeration technology it is suggested to use bubble type absorbers because the higher contact surface area provides a higher mass transfer rate. Furthermore, dispersion of bubbles in the bulk of liquid phase also exhibits better heat transfer characteristics that facilitate the recovery of dissipated heat of the exothermic absorption.In this context, plate heat exchangers are believed to be an option to be employed as absorber in some applications. Commercial plate heat exchangers have only one inlet and outlet for a working fluid and as a result, gas and liquid

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Khadra, Rami. "Nouvelle génération de transformateurs de chaleur, sélection de fluides de travail et optimisation des équipements du cycle en employant des technologies innovantes." Thesis, Paris, ENMP, 2015. http://www.theses.fr/2015ENMP0083.

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Ce travail contribue aux efforts de l'Union Européenne pour réduire les émissions de CO2. Son objectif est d'aider les industries produisant de la chaleur fatale à récupérer cette énergie perdue, d'augmenter sa température et de la réutiliser in situ. Les transformateurs de chaleur (Absorption Heat Transformers ou AHT), machines à absorption consommant très peu d'électricité, sont alors ici étudiés. Les AHTs existants rencontrent des problèmes comme la corrosion, la cristallisation, la toxicité et les niveaux de pression éloignés de la pression atmosphérique. Ceux-ci sont causés par les fluide

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Ammari, Ali. "Experimental Investigation of two-phase flow in microchannels. Co-current Absorption of Ammonia in Water to Design an Innovative Bubble Plate Absorber." Thesis, KTH, Skolan för kemivetenskap (CHE), 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-156190.

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For ammonia-water absorption refrigeration technology it is suggested to use bubble type absorbers because the higher contact surface area provides a higher mass transfer rate. Furthermore, dispersion of bubbles in the bulk of liquid phase also exhibits better heat transfer characteristics that facilitate the recovery of dissipated heat of the exothermic absorption. In this context, plate heat exchangers are believed to be an option to be employed as absorber in some applications. Commercial plate heat exchangers have only one inlet and outlet for a working fluid and as a result, gas and liqui

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Conference papers on the topic "Buble Absorbers"

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Bhujbal, Rahul, Sanjay Nakate, and Sunil V. Dingare. "Mass Transfer Rate Enhancement in Sparged Vessel for Ammonia-Water Nano-Fluid in VARS by Adding Nanoparticles." In ASME 2020 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/imece2020-24382.

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Abstract The refrigeration systems are used in domestic and commercial freezing applications. These systems are needed to be used energy efficiently to get the economic operation condition. The vapor compression refrigeration cycle (VCR) is getting replaced by vapor absorption refrigeration system (VARS) as they can use low grade energy. This VARS can be used by making use of waste energy in the form of heat which is readily available for many applications. Performance of the VARS is dependent on the generator and absorber performance. In absorber it is based on the amount of refrigerant absor

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Cardenas, Ruander, Jeromy Jenks, Myeong Chan Jo, and Vinod Narayanan. "Performance of a Constrained Microscale Film Bubble Absorber Under System Operating Conditions." In ASME 2008 2nd International Conference on Energy Sustainability collocated with the Heat Transfer, Fluids Engineering, and 3rd Energy Nanotechnology Conferences. ASMEDC, 2008. http://dx.doi.org/10.1115/es2008-54125.

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Absorption of ammonia vapor bubbles into a constrained thin film of ammonia-water solution is presented in the context of potential reduction in size of a heat-actuated heat pump component. A large-aspect-ratio channel with a depth of 600 μm restricts the thickness of the weak solution film, while ammonia vapor bubbles are injected from a porous wall. Experiments are performed at a nominal system pressure of 6.2 bar absolute and at an inlet weak solution temperature of 75 °C. A counter flowing coolant at a fixed inlet temperature of 58 °C removes the generated heat of absorption. The mass flow

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Jia, W., and V. K. Dhir. "Experimental Study of Bubble Dynamics and Concentration Variation in the Presence of Boron in the Liquid." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-33225.

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Accumulation of neutron absorber (boron or boron compounds) within the porous crud layer on the fuel rods in the cores of pressured water reactors (PWR) results in the so-called axial offset anomaly (AOA). There is practically little information on the gradients of neutron absorber concentration near a nucleation site on the cladding surface during the growth of a bubble. The objective of the present work is to study bubble dynamics and associated concentration field of aqueous boron. As a first step in solving the complete problem, dynamics of single bubble was studied under pool boiling cond

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Jenks, Jeromy, and Vinod Narayanan. "Effect of Channel Geometry Variations on the Performance of a Microscale Bubble Absorber." In ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference collocated with the ASME 2007 InterPACK Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/ht2007-32445.

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The effect of microchannel geometry variations on heat transfer and absorption rate of an ammonia-water constrained thin film bubble absorber are presented. Experiments are performed at an absolute pressure of four bar and at a fixed inlet mass concentration of ammonia of 15 percent. The mass flow rate of the inlet weak solution are varied from 10 g/min to 30 g/min, and that of ammonia gas are varied from 1 g/min to 3 g/min. Five geometries, including two smooth-bottom-walled channels of differing depths, and three channels with structured bottom walls are considered. For identical rates of va

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Taylor, Robert A., Patrick Phelan, Ronald Adrian, Andrey Gunawan, and Todd Otanicar. "Characterization of a Nanofluid Volumetric Solar Absorber / Steam Generator." In ASME 2011 5th International Conference on Energy Sustainability. ASMEDC, 2011. http://dx.doi.org/10.1115/es2011-54062.

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Solar thermal energy has shown remarkable growth in recent years — incorporating many new technologies into new applications [1]. Nanofluids — suspensions of nanoparticles in conventional fluids — have shown promise to make efficient volumetric-absorption solar collectors [2–4]. It has also been shown that concentrated light energy can efficiently cause localized phase change in a nanofluid [5]. These findings indicate that it may be advantageous to create a ‘direct, volumetric nanofluid steam generator’. That is, a solar collector design which could minimize the number of energy transfer step

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Mariappan, V., R. B. Anand, and M. Udayakumar. "A simplified design procedure of R134A-DMAC plate type bubble absorber for vapour absorption refrigeration system." In International Conference on Frontiers in Automobile and Mechanical Engineering (FAME 2010). IEEE, 2010. http://dx.doi.org/10.1109/fame.2010.5714804.

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Su, Fengmin, Hongbin Ma, and Yangbo Deng. "Numerical Analysis of Ammonia Absorption From a Bubble Expanding at a Submerged Nozzle Into a Binary Nanofluid." In ASME 2013 4th International Conference on Micro/Nanoscale Heat and Mass Transfer. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/mnhmt2013-22011.

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An absorber is a major component in the absorption refrigeration systems, and its performance remarkably affects the overall system performance. A mathematical model for ammonia absorption from a bubble expanding at a submerged nozzle into a binary nanofluid was developed to analyze the effects of binary nanofluid on ammonia absorption in the forming process of a bubble. The combined effects of nanoparticles on heat transfer, mass transfer, and bubble size all were considered in the model. The concentration of nanoparticles, the radius of the nozzle and the flow rate of ammonia vapor were cons

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Elperin, Tov, and Andrew Fominykh. "Four stages of combined mass and heat transfer during bubble formation and rise in a bubbly absorber." In International Heat Transfer Conference 12. Begellhouse, 2002. http://dx.doi.org/10.1615/ihtc12.2440.

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Jenks, Jeromy, and Vinod Narayanan. "An Experimental Study of Ammonia-Water Bubble Absorption in a Large Aspect Ratio Microchannel." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-14036.

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An experimental study of absorption of ammonia into a constrained thin film of ammonia-water solution is presented. A large aspect ratio microchannel with one of its walls formed by a porous material is used to constrain the thickness of the liquid film. An exit visualization section was used to confirm absorption of ammonia gas within the microchannel. Experiments were performed at a pressure of 1 bar and a fixed inlet temperature of the weak solution, for weak solution flow rates from 10 to 30 g/min, inlet mass concentrations from 0 to 15 percent, and gas flow rates between 1 and 3 g/min. Re

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Zhou, Yanmin, Zhongning Sun, Haifeng Gu, Junlong Wang, and Zhuang Miao. "Research on Performance of Gas Methyl Iodide Removal." In 2014 22nd International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/icone22-30336.

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The characteristics of gas methyl iodide removed by containment filter venting system is similar with bubble column reactor, this study is focused on the absorption performance of methyl iodide in a bubble column reactor with experiment and mathematical calculations, the alkalescent sodium thiosulphate solution in a scale-up facility is used as absorber in the research. The results show that the gas methyl iodide removal efficiency is mainly influenced by the temperature of solution, system pressure, gas flow rate and liquid level respectively. In the range of 0∼80°C, the removal efficiency im

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