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Artykuły w czasopismach na temat "Evaporation sludge"

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Marklund, S. "Dewatering of Sludge by Natural Methods." Water Science and Technology 22, no. 3-4 (1990): 239–46. http://dx.doi.org/10.2166/wst.1990.0207.

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Drying fron a free water surface and from a waste activated sludge was studied In three separate experimental arrangements. Evaporation in a closed chamber with a surface area of 1.0 m2 was studied with temperatures between 20 and 60°C and air flows between 75 and 300 m3/hour. The rate of evaporation varied between 351 and 746 gram/m2 hour. The efficiency varied between 11 and 20%. To increase the efficiency the air-liquid area has to be enlarged. Evaporation from two pilot sludge drying beds was studied in an open air test lasting four months. One similar bed was tested in a controlled enviro
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Mouzaoui, M., J. C. Baudez, M. Sauceau, and P. Arlabosse. "How to avoid evaporation during rheological measurements of dewatered pasty sludge at high temperature." Water Science and Technology 79, no. 8 (2019): 1503–10. http://dx.doi.org/10.2166/wst.2019.150.

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Abstract Controlling the residence time in paddle dryers and the drying efficiency imply the knowledge of rheological behaviour of highly concentrated and pasty sludge and its temperature dependency. However, because of perturbing effects such as evaporation, measurements are not fully representative of intrinsic sludge properties. Classical techniques usually considered in the literature for evaporation control are not efficient at high temperatures. This work gives a method to control the evaporation at high temperature that can be used with any commercial rheometer. The configuration concep
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Idris, A., O. B. Yen, M. H. A. Hamid, and A. M. Baki. "Drying kinetics and stabilization of sewage sludge in lagoon in hot climate." Water Science and Technology 46, no. 9 (2002): 279–86. http://dx.doi.org/10.2166/wst.2002.0259.

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A sludge lagoon has been adopted as a simple and cost effective method for dewatering of sludge. The processes occurring in a sludge lagoon include thickening, dewatering, storage and stabilization; all happening simultaneously. The objective of this study is to determine the dewatering and drying rates at pilot-scale which occur in a lagoon having different design configurations. Two types of sludge lagoons with different initial sludge depth (0.75 m and 0.375 m) were investigated to measure the drying behavior and drying efficiency. The first design is a sludge lagoon with a clay bottom wher
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Wang, Wan Fu, Guo Li, Xing Yue Yong, Peng Liu, and Xiao Fei Zhang. "The Features of Microwave Thermal Conversion of Oil Sludge." Applied Mechanics and Materials 232 (November 2012): 788–91. http://dx.doi.org/10.4028/www.scientific.net/amm.232.788.

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The microwave thermal conversion process of oil sludge was studied. It was found that the microwave thermal conversion process of oil sludge consisted of 5 stages: rapid heating, microwave drying, microwave hydrocarbons evaporation, microwave pyrolysis and microwave calcining. Using the residue produced from the microwave thermal treatment of oil sludge as a microwave absorbent can significantly accelerate the conversion. However, it does not show significant effect on the features of microwave thermal conversion. Meanwhile, the addition of residue at appropriate percentages increased oil reco
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Li, Xiao Ming, Shang Jie Wang, Jun Xue Zhao, Ya Ru Cui, and Su Bo Hou. "A Review on the Treatments and Minimization Techniques of Stainless Steel Pickling Sludge." Advanced Materials Research 194-196 (February 2011): 2072–76. http://dx.doi.org/10.4028/www.scientific.net/amr.194-196.2072.

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Pickling sludge is the deposits that generated from the neutralization of pickling waste water with calcium hydroxide in stainless steel pickling process. The main composition of pickling sludge is CaF2, CaSO4, Me(OH)n (M:Fe,Cr,Ni). Solidification /stabilization method is believed to a most economical way to dispose these wastes at present. But the process caused serious compatibilization, it not only took up the scarce land resource, but also wasted nickel, chromium and other resources, in addition, the potential harm of Cr6+ to the environment still existed. A new thought to recycle the slud
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Marklund, S. "Dewatering of Drying Beds–Combined Biological-Chemical Sludge Behaviour." Water Science and Technology 28, no. 10 (1993): 65–72. http://dx.doi.org/10.2166/wst.1993.0206.

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Aerobically digested sludge from a small wastewater treatment plant was dewatered on five sand drying pilot beds and four small drainage beds. The experiment was conducted in a controlled environment with constant air humidity and temperature. A total of between 147 and 263 kg of a combined biological-chemical sludge was used on each of the sand drying beds. Initial sludge total solids (TS) content was 4.6 - 5.5%. Sludge drainage was completed within 28 days, and the thinner sludge layers were drained within 16 days. The sludge evaporation phase, prior to equilibrium with air moisture, lasted
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Dellbrügge, R., K. Bauerfeld, N. Dichtl, A. Großer, and S. Paris. "‘Technology transfer-oriented research and development in the wastewater sector – validation at industrial-scale plants’ (EXPOVAL) – Subgroup 6: solar sewage sludge drying: first results from investigations with a pilot plant." Water Practice and Technology 10, no. 2 (2015): 371–80. http://dx.doi.org/10.2166/wpt.2015.045.

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Drying sewage sludge is a major aspect of biosolids management. Several investigations were performed in a pilot-scale solar dryer for the subsequent development of design rules for solar dryers. The pilot dryer was operated outside simultaneously with a full-scale dryer and, later, in a building. Total solids in the sludge and climate data were analyzed and logged regularly during drying. The fecal coliform and ammonium content was measured as well. Operation next to the full-scale plant was intended to enable comparison of their evaporation rates. The pilot plant was operated in a building i
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Oikonomidis, I., and C. Marinos. "Solar sludge drying in Pafos wastewater treatment plant: operational experiences." Water Practice and Technology 9, no. 1 (2014): 62–70. http://dx.doi.org/10.2166/wpt.2014.007.

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In this study, one year of operating experience with a solar sludge drying plant in Pafos wastewater treatment plant is discussed. The plant had a total area of 3,853 m2 and consisted of four parallel lines. Two types of dewatered sludge with considerably different dry matter content were used. 5,678 tn of dewatered sludge were introduced in the plant and the dried sludge had an average dried solids content of 80.9%, which corresponded to a surface annual evaporation rate of 1.14 tn H2O m−2a−1. The results indicated that solar drying may be a particularly favorable option for sewage sludge dry
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Qiao, Huiping, Miaomiao Song, Guizhong Xu, and Chengchun Qiu. "Shrinkage and Cracking Characteristics of Dredged Sludge Containing Straw Fiber Under Different Initial Water Contents." Buildings 15, no. 1 (2024): 97. https://doi.org/10.3390/buildings15010097.

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Dredged sludge usually has high water content and poor engineering properties, which would be unfavorable for its rapid resource utilization. Meanwhile, straw fiber is an environmentally friendly material for improving the mechanical behavior of soil. In this research, a series of shrinkage tests were conducted to investigate the straw fiber effects on the shrinkage behavior of dredged sludge with high water content. Four initial water contents and straw fiber amounts were designed. The water content and crack development were recorded throughout the test. According to the test results, a redu
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Li, Huan, Yang Yang Li, and Yi Ying Jin. "Analyses of Coal and Sewage Sludge Co-Combustion Using Coats-Redfern Model." Advanced Materials Research 518-523 (May 2012): 3271–74. http://dx.doi.org/10.4028/www.scientific.net/amr.518-523.3271.

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The co-combustibility of coal and sludge was investigated with thermogravimetric analysis. The results show that the burning process of sludge can be divided into three phases: water evaporation, volatile matter volatilization and combustion, fixed carbon combustion and burning out. The ignition temperature of sludge is only 260 degree centigrade at the beginning of volatile matter combustion. The addition of wet sludge or dried sludge will reduce the burning velocity of coal, and also decrease the ignition temperature. However the blend of coal and sludge has not an obvious stage of the volat
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Rozprawy doktorskie na temat "Evaporation sludge"

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Ait, Hak Sara. "Procédés verts et durables pour la valorisation des sous-produits du phosphate : récupération des terres rares et au-delà." Electronic Thesis or Diss., Université Côte d'Azur, 2024. http://www.theses.fr/2024COAZ5027.

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Cette thèse explore des méthodes innovantes pour la récupération des éléments terres rares (ÉTRs) à partir de sous-produits de l'industrie du phosphate, notamment les boues de phosphate (BP), le phosphogypse (PG) et les boues d'évaporation (BE), dans le but de renforcer les chaînes d'approvisionnement en ÉTRs et de promouvoir la durabilité environnementale. Une revue de littérature approfondie établit les bases pour l'application de techniques expérimentales avancées, y compris la concentration saline, la lixiviation dépendante du pH, la flottation, et la précipitation et cristallisation fract
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Al-Farsi, Afkar Nadhim. "Radiological aspects of petroleum exploration and production in the sultanate of Oman." Thesis, Queensland University of Technology, 2008. https://eprints.qut.edu.au/29817/1/Afkar_Al-Farsi_Thesis.pdf.

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This thesis is a study of naturally occurring radioactive materials (NORM) activity concentration, gamma dose rate and radon (222Rn) exhalation from the waste streams of large-scale onshore petroleum operations. Types of activities covered included; sludge recovery from separation tanks, sludge farming, NORM storage, scaling in oil tubulars, scaling in gas production and sedimentation in produced water evaporation ponds. Field work was conducted in the arid desert terrain of an operational oil exploration and production region in the Sultanate of Oman. The main radionuclides found were 226R
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Al-Farsi, Afkar Nadhim. "Radiological aspects of petroleum exploration and production in the sultanate of Oman." Queensland University of Technology, 2008. http://eprints.qut.edu.au/29817/.

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This thesis is a study of naturally occurring radioactive materials (NORM) activity concentration, gamma dose rate and radon (222Rn) exhalation from the waste streams of large-scale onshore petroleum operations. Types of activities covered included; sludge recovery from separation tanks, sludge farming, NORM storage, scaling in oil tubulars, scaling in gas production and sedimentation in produced water evaporation ponds. Field work was conducted in the arid desert terrain of an operational oil exploration and production region in the Sultanate of Oman. The main radionuclides found were 226R
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Жолуденко, Микола Миколайович. "Аналіз ефективності баромембранного розділення багатокомпонентних водних розчинів". Магістерська робота, 2020. https://dspace.znu.edu.ua/jspui/handle/12345/2164.

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Жолуденко М. М. Аналіз ефективності барометричного розділення багатокомпонентних водних розчинів ВП «ЗАЕС» : кваліфікаційна робота магістра спеціальності 144 "Теплоенергетика" / наук. керівник О. М. Назаренко. Запоріжжя : ЗНУ, 2020. 117 с.<br>UA : Робота викладена на 117 сторінок друкованого тексту, містить 32 таблиці, 26 рисунків. Перелік посилань включає 53 джерел з них на іноземній мові 15. Досліджено можливість комбінування розділення природними та синтетичними мембранами умовно чистих та умовно брудних потоків ЗАЕС. Розроблена методика вимірювання хімічних показників якості в польових у
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Części książek na temat "Evaporation sludge"

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Sun, Y. "Hydrolytic Acidification-Two Stage EGSB-A/O Combined Process for Pesticide Wastewater Treatment." In Advances in Wastewater Treatment II. Materials Research Forum LLC, 2021. http://dx.doi.org/10.21741/9781644901397-6.

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The wastewater produced by a chemical enterprise in Ningxia has the characteristics of high COD, high salt content, and high ammoniacal nitrogen. The biodegradability of the wastewater is poor due to presence of higher concentration of pollutant. The scale of first stage of treatment was 400m3/d. The wastewater of different characteristic was collected and treated separately. The combined process of "micro electrolysis + Fenton oxidation + coagulation precipitation + evaporation crystallization" was used to pretreat the wastewater containing high salt and high COD. The main process was "hydrol
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"Table II : Quantitative determination of carbonyl compounds at different odour sources (concentrations in ppb) Rendering plant Gelatine plant neighbourhood neighbourhood Formaldehyde 40 16 Acetaldehyde 39 24 Acetone 36 73 Prcpanal 10 -Isobutyraldehyde 10 30 Pentanal 15 19 Hexanal 3.52 Heptanal 12.5 Octanal 10.5 Nonanal 1 2 acids (figure 7). However extractions always involve a serious decrease in sensitivity, while evaporation of the extract produces a solution in 0.1-0.5 ml of solvent, and only 1 pi of it can be brought in the gas chromatograph. Therefore work is in progress to enhance sensitivity by converting acids in­ to halogenated derivatives, which can be GC-analysed with the more sensitive electron-capture detector. For thiols a similar procedure is investigated as with aldehydes. One possibility is absorption of thiols in an alkaline solution and reaction with 2,4-dinitrochlorobenzene, yielding 2,4-dinitrofenylsulfides, which are analysed by HPLC (9). Sane improvements on removal of reagents at the one hand and on separation of sane by-products on the other hand have to be achieved in order to in­ crease the sensitivity with another factor of ten. 5. CONCLUSION The actual scope and limitations of chemical analysis of odour show that all problems can be tackled as far as emission is concerned. For iititiission measurements seme progress is necessary, but there is no essential reason why chemical analysis would be unable to attain the desired sensitivity for all types of odorants. There is no doubt that in a few years the last dif­ ficulties will be solved. In order to achieve real control of odour nui­ sance, automatic measurement is necessary on a long time basis. There again seme technical development is to be expected. Does this mean that machines are going to decide if an odour is pre­ sent or not? By no means, while the population will always be the reference, and psychophysical measurements will be necessary to make chemical analysis possible." In Odour Prevention and Control of Organic Sludge and Livestock Farming. CRC Press, 1986. http://dx.doi.org/10.1201/9781482286311-77.

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"be detected specifically, which is possible for sane groups of odorants (thiols or mercaptans, sulphides, amines) with specific GC-detectors. Spe­ cific detectors are available for haloganted compounds, sulphur-, phosphor-and nitrogen compounds. Figure 4 shews the analysis of the sulphur-ccmpounds produced by the acidic decomposition of phosphate-rock and causing the typi­ cal smell of fertilizer plants. Another approach is to aim at selective concentration methods. Indeed odour problems are caused by a limited number of compounds, on rather a li­ mited number of classes of compounds, mentioned in figure 5. For most odour nuisance problems, chemical plants, refineries, live­ stock production, food processing, rendering, water purification plants etc., the compounds responsible for the odour are known. So chemical analysis of the odour can be limited to these odorants, and selective concentrating techniques can be used. Selective concentrating methods are based on speci­ fic absorption techniques, using particular chemical reactions of odorant classes. Semet imes several absorption methods have to be used in order to describe the odour problem, thus increasing the labor cost of the analysis. On the other hand absorption methods allow better quantitative results. Se­ lective absorption of odorants from air produces a far less complex mixture. We developed or are developing several of these methods for aldehydes, amines, acids, thiols etc. Carbonyl ccnpounds for instance can be trapped by absorption in a rea­ gent solution containing 2,4-dinitrcphenylhydrazine and hydrogen chloride. Details of this method are extensively described elsewhere (8). The prin­ ciple of the method is that the carbonyl ccnpounds, in case of rendering plant emission the aldehydes, react with the 2,4-dinitrophenylhydrazine and form 2,4-dinitrophenylhydrazones (2,4-DNPH's) according to the scheme. These 2,4-dinitrophenylhydrazones have seme interesting properties. It are cristalline caipounds so that after extract of the 2,4-DNPH's fran the reagens, they can be concentrated by evaporation of the solvent without losing product. Besides these caipounds shown intense absorption of UV-light (X 356 nm) and so they can easily be detected with an UV-detec-tor. These properties make the 2,4-DNPH's particularly suitable for HPDC-analyse. This methods is used since seme time. A chranatogram is given in figure 6 and results of the quantitative determination of carbonyl com­ pounds in different situations are given in table 2. For amines absorption in an acid solution, or preferably adsorption onto an acid ion exchange column (acidified divinylbenzene-styrenesulfo-nic acid copolymer) is used. 10-50 1 of ambient air is sent over*a wet 100nnix3irmI.D. column; the ion exchange polymer is put into a vial, made alkaline and the water solution is analysed on packed Carbowax-KDH GC-column with a thermionic selective detector (TSD), which is specific for nitrogen- and phosphorus-catpounds. Trimethylamine is detected easi­ ly at 1 ppb. Aibids can be absorbed specifically in an alkaline impringer, which is extracted with ether after acidification to pH 2. This method was used for rendering plant emissions, shewing a series of linear and branched." In Odour Prevention and Control of Organic Sludge and Livestock Farming. CRC Press, 1986. http://dx.doi.org/10.1201/9781482286311-76.

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Collie, John G., F. R. S. F. Eng, R. John, and Thome D. Phil. "Saturated Boiling Heat Transfer." In Convective Boiling and Condensation. Oxford University PressOxford, 1994. http://dx.doi.org/10.1093/oso/9780198562825.003.0007.

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Abstract In this chapter the present state of knowledge regarding the heat transfer characteristics of saturated forced convective boiling and evaporation will be discussed. Returning to Fig. 4.21, it can be seen that this covers the regions C and D, where nucleate boiling is occurring at the wall and where the flow pattern would be typically bubbly, slug, or low vapour velocity annular and regions E and F where there is no nucleation at the wall; this latter region is normally associated with annular flow.
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Streszczenia konferencji na temat "Evaporation sludge"

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Singh Gaur, Raj P. "Scale Formation in Tungsten Chemical Process." In CORROSION 2007. NACE International, 2007. https://doi.org/10.5006/c2007-07060.

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Abstract This paper pertains to the characterization and chemistry of scale formation occurring in an industrial tungsten chemical process. In tungsten process, scales typically form in filter presses, pipes (carrying various solutions and waste waters) and evaporation crystallizers. This paper presents our results on the scale that forms in a filter press. Scale is formed on the plate supporting filter cloth and located in the exit side of wash solution. Major constituents of the scale were two tantalum compounds: Na14(Ta0.715Nb0.285)12O37.31H2O and Na3Ta0.715Nb0.285O4. It is suspected that t
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Chandler, G. T., P. E. Zapp, and J. I. Mickalonis. "Hot-Wall Corrosion Testing of Simulated High Level Nuclear Waste." In CORROSION 1995. NACE International, 1995. https://doi.org/10.5006/c1995-95431.

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Abstract Three materials of construction for steam tubes used in the evaporation of high level radioactive waste were tested under heat flux conditions, referred to as hot-wall tests. The materials were type 304L stainless steel, alloy C276, and alloy G3. Non-radioactive acidic and alkaline salt solutions containing halides and mercury simulated different high level waste solutions stored or processed at the United States Department of Energy’s Savannah River Site. Alloy C276 was also tested for localized corrosion susceptibility under steady-state conditions. The nickel-based alloys C276 and
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Plecas, Ilija, and Slavko Dimovic. "Curing Time Effect on the Fraction of 137CS From Immobilized Radioactive Evaporator Sludge by Cement." In ASME 2009 12th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2009. http://dx.doi.org/10.1115/icem2009-16329.

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Traditional methods of processing evaporator concentrates from NPP are evaporation and cementation. These methods allow to transform a liquid radioactive waste into a more inert form, suitable for a final disposal. To assess the safety for disposal of radioactive mortar-waste composition, the leaching of 137Cs from immobilized radioactive evaporator concentrate into a surrounding fluid has been studied. Leaching tests were carried out in accordance with a method recommended by IAEA. Curing conditions and curing time prior to commencing the leaching test are critically important in leach studie
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Plecas, Ilija, Slavko Dimovic, and Radojica Pesic. "Curing Time Effect on the Fraction of 137Cs From Immobilized Radioactive Evaporator Sludge by Portland Cement." In ASME 2011 14th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2011. http://dx.doi.org/10.1115/icem2011-59006.

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Traditional methods of processing evaporator concentrates from Nuclear Power Plants are evaporation and cementation. These methods allow transforming a liquid radioactive waste into a more inert form, suitable for a final disposal. To assess the safety for disposal of radioactive mortar-waste composition, the leaching of 137Cs from immobilized radioactive evaporator concentrate into a surrounding fluid has been studied. Leaching tests were carried out in accordance with a method recommended by IAEA. Curing conditions and curing time prior to commencing the leaching test are critically importan
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d’Entremont, Brian P., and John R. Thome. "A Numerical Study of Pulsating Heat Pipe Performance." In ASME 2015 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems collocated with the ASME 2015 13th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/ipack2015-48350.

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A pulsating heat pipe (PHP), also known as an oscillating heat pipe (OHP), is a passive thermal transport device which consists of a single meandering microchannel making multiple passes each through an evaporator and condenser. With a sufficient number of such passes, intermittent boiling of liquid slugs within each evaporator pass perturbs flow in adjacent channels leaving the device in a perpetually unstable state of oscillation. A PHP is thus distinguished operationally from a loop thermosyphon by having a motive force other than buoyancy and the ability to operate in all gravitational ori
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Cai, Qingjun, Reh-Lin Chen, and Chung-Lung Chen. "An Investigation of Evaporation, Boiling, and Heat Transport Performance in Pulstating Heat Pipe." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-33334.

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Pulsating heat pipe (PHP) is a latest development in heat pipe technology. In this paper, evaporation and boiling phenomena are investigated, and liquid heat transport performance in a PHP is measured at different fill ratio as well. The observation results show that phase change in the evaporator may occur by two different mechanisms: 1) evaporation and boiling in thin liquid film on the evaporator wall, 2) generation and collapse of tiny bubbles suspended in the liquid slug. Meanwhile, the temperature measurement indicates that temperature gradient between the evaporator and the condenser is
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Kakihara, Takahiro, and Kiyoshi Yanagihara. "Development of Bio-Mass Fuel for Small Displacement Engine to Reduce CO2: Feasibility of Disposed Alcoholic Beverages as Bio-Mass Source." In ASME 2011 5th International Conference on Energy Sustainability. ASMEDC, 2011. http://dx.doi.org/10.1115/es2011-54736.

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This study deals with bio-ethanol distilled from disposed alcoholic beverages. Through the various experiments while using a small displacement engine which is equipped with electric fuel injection (E.F.I.) system, the feasibility of the disposed alcoholic beverages; leftover-beer is investigated as one of the bio-mass sources. Currently bio-masses are classified into the following seven bio-mass sources, livestock excreta, sewage sludge, human waste sludge, waste of food, agricultural residue, wood-based (wood chips) bio-mass and crops. In those bio-mass sources, the authors pay their attenti
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Pease, Leonard F., Judith Ann Bamberger, Carolyn A. Burns, and Michael J. Minette. "Concentrating Slurries Mesofluidically for Nuclear Waste Processing." In ASME 2022 Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/fedsm2022-87708.

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Abstract High-level radioactive waste stored at the Hanford Site near Richland Washington will be retrieved, transported, treated, and concentrated prior to final vitrification. This waste, stored in million-gallon underground tanks, is to be retrieved and transported via pipeline to the treatment facilities at low solids loading. Concentration is a necessary step to remove transport fluid and supernatant liquid. Several techniques are available to concentrate slurries including settle/decant, filtration, and evaporation that all present unique challenges. Using evaporators to dewater sludge i
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Han, Youngbae, Naoki Shikazono, and Nobuhide Kasagi. "The Effect of Liquid Film Evaporation on Flow Boiling Heat Transfer in a Micro Tube." In 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-22751.

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Flow boiling in micro channels is attracting large attention since it leads to large heat transfer area per unit volume. Generated vapor bubbles in micro channels are elongated due to the restriction of channel wall, and thus slug flow becomes one of the main flow regimes. In slug flow, sequential bubbles are confined by the liquid slugs, and thin liquid film is formed between tube wall and bubble. Liquid film evaporation is one of the main heat transfer mechanisms in micro channels and liquid film thickness is a very important parameter to determine heat transfer coefficient. In the present s
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Magnini, Mirco, and John R. Thome. "Use of Two-Phase CFD Simulations to Develop a Boiling Heat Transfer Prediction Method for Slug Flow Within Microchannels." In ASME 2015 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems collocated with the ASME 2015 13th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/ipack2015-48033.

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This work presents a new boiling heat transfer prediction method for slug flow within microchannels, which is developed and benchmarked against the results of two-phase CFD simulations. The proposed method adopts a two-zone decomposition of the flow for the sequential passage of a liquid slug and an evaporating elongated bubble. The heat transfer is modeled by assuming transient heat conduction across the liquid film surrounding an elongated bubble and sequential conduction/convection within the liquid slug. Embedded submodels for estimating important flow parameters, e.g. bubble velocity and
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Raporty organizacyjne na temat "Evaporation sludge"

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Ceo, R. N., M. B. Sears, and J. T. Shor. Physical characterization of radioactive sludges in selected Melton Valley and evaporator facility storage tanks. Office of Scientific and Technical Information (OSTI), 1990. http://dx.doi.org/10.2172/6530412.

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Sears, M. B., J. L. Botts, and J. M. Keller. Exploratory tests of washing radioactive sludge samples from the Melton Valley and evaporator facility storage tanks at ORNL. Office of Scientific and Technical Information (OSTI), 1991. http://dx.doi.org/10.2172/5113853.

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Sears, M. B., J. L. Botts, R. N. Ceo, et al. Sampling and analysis of radioactive liquid wastes and sludges in the Melton Valley and evaporator facility storage tanks at ORNL. Office of Scientific and Technical Information (OSTI), 1990. http://dx.doi.org/10.2172/6591514.

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Smiley, H. S. Criticality Safety Assessment: Impact of Tank 40H Sludge Batch 2 Decant No. 2 on the Criticality Safety Assessment of the 242-25H Evaporator System (WSRC-TR-2000-00069). Office of Scientific and Technical Information (OSTI), 2001. http://dx.doi.org/10.2172/784208.

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