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Dissertations / Theses on the topic 'Flue gas temperature'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Latcham, Jacob G. (Jacob Greco). "Heat exchanger design for thermoelectric electricity generation from low temperature flue gas streams." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/54513.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2009.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 33).<br>An air-to-oil heat exchanger was modeled and optimized for use in a system utilizing a thermoelectric generator to convert low grade waste heat in flue gas streams to electricity. The NTU-effectiveness method, exergy, and thermoelectric relations were used to guide the modeling process. The complete system design was optimized for cost using the net present value method. A number of finned-tube compact heat exch

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2

Gao, Yang. "Low-temperature removal of hydrogen chloride from flue gas using hydrated lime as a sorbent." Ohio : Ohio University, 1999. http://www.ohiolink.edu/etd/view.cgi?ohiou1175884147.

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3

Darmastuti, Zhafira. "SiC-FET Gas Sensors Developed for Control of the Flue Gas Desulfurization System in Power Plants Experimental and Modeling : Experimental and Modeling." Doctoral thesis, Linköpings universitet, Tillämpad sensorvetenskap, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-106224.

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Electricity and power generation is an essential part of our life. However, powergeneration activities also create by-products (such as sulphur oxides, nitrogen oxides,carbon monoxide, etc), which can be dangerous when released to the atmosphere.Sensors, as part of the control system, play very vital role for the fluegas cleaning processes in power plants. This thesis concerns the development ofSilicon Carbide Field Effect Transistor (SiC-FET) gas sensors as sensors for sulfurcontaining gases (SO2 and H2S) used as part of the environmental control systemin power plants. The works includes sens

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4

Tootla, Naeem Ebrahim. "Investigation into methods for the calculation and measurement of pulverised coal boiler flue gas furnace exit temperature." Master's thesis, University of Cape Town, 2016. http://hdl.handle.net/11427/20562.

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The boiler flue gas furnace exit temperature (FET) is a key operating parameter of coal fired steam boilers. From the design perspective, the FET is vital for materials selection and sizing of heat transfer surfaces. From an operating perspective, it is a major indicator of the rate of combustion and heat transfer that is occurring within the furnace. Downstream of the furnace, the FET has a significant impact on both the performance and reliability of the boiler heat exchangers, which ultimately impacts on both boiler efficiency and availability. Monitoring of the FET can advise operating and

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5

Wang, Alan Yao. "Steam Reactivation and Separation of Limestone Sorbents for High Temperature Post-combustion CO2 Capture from Flue Gas." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1342457128.

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6

Tootla, Naeem Ebrahim. "Investigation into methods for the calculation and measurement of pulverised coal boiler flue gas furnace exit temperature." Master's thesis, University of Cape Town, 2007. http://hdl.handle.net/11427/20562.

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The boiler flue gas furnace exit temperature (FET) is a key operating parameter of coal fired steam boilers. From the design perspective, the FET is vital for materials selection and sizing of heat transfer surfaces. From an operating perspective, it is a major indicator of the rate of combustion and heat transfer that is occurring within the furnace. Downstream of the furnace, the FET has a significant impact on both the performance and reliability of the boiler heat exchangers, which ultimately impacts on both boiler efficiency and availability. Monitoring of the FET can advise operating and

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7

Okano, Terumi. "High temperature mercury oxidation kinetics via bromine mechanisms." Worcester, Mass. : Worcester Polytechnic Institute, 2009. http://www.wpi.edu/Pubs/ETD/Available/etd-012509-223212/.

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8

Liu, Lu. "Membranes for heat integrated carbon dioxide capture via cold conditions operation." Diss., Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/54844.

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Flue gas carbon dioxide emissions from coal-based power plants are suggested as a factor causing climate change. Membrane is an attractive technology for the capture of carbon dioxide from flue gas. Matrimid® asymmetric hollow fiber membranes with “homogeneous dense” and “fused nodular” selective layers were successfully formed. The PDMS post-treated nodular-skinned fibers showed better cold performance than the dense-skinned fibers with bore side feed. A hypothesis with regards to increased sorption capacity coupled with orientated polymer chain segments for the nodular skin was proposed and

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9

Chauk, Shriniwas S. "High-pressure high-temperature control of Hydrogen Sulfide, Sulfur Dioxide and Selenium from fuel/flue gas using Ca-based sorbents /." The Ohio State University, 1999. http://rave.ohiolink.edu/etdc/view?acc_num=osu1488186329503714.

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10

Iyer, Mahesh Venkataraman. "High temperature reactive separation process for combined carbon dioxide and sulfur dioxide capture from flue gas and enhanced hydrogen production with in-situ carbon dioxide capture using high reactivity calcium and biomineral sorbents." Columbus, Ohio : Ohio State University, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1135961929.

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11

ABU-DAABES, MALYUBA ALI. "SYNTHESIS AND CHARACTERIZATION OF NANO-STRUCTURED CHELATING ADSORBENTS FOR THE DIRECT REMOVAL OF MERCURY VAPOR FROM FLUE-GASES." University of Cincinnati / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1108417592.

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12

Iyer, Mahesh Venkataraman. "High temperature reactive separation process for combined carbon dioxide and sulfur dioxide capture from flue gas and enhanced hydrogen production with in-situ carbon dioxide capture using high reactivity calcium and biomineral sorbents." The Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=osu1135961929.

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13

Rouveirolles, Pierre. "Etude de la cinetique en phase gazeuse de reactions du radical nh2 a haute temperature." Orléans, 1987. http://www.theses.fr/1987ORLE2019.

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Reactions du radical nh::(2) avec des alcanes, h::(2) et h::(2)o. Les reactions etudiees jouent un role important dans la modelisation des processus de combustion ou de post-combustion des hydrocarbure et dans la connaissance du mecanisme reactionnel gouvernant le traitement par injection d'ammoniac des oxydes d'azote contenus dans les gaz d'echappement des machines thermiques

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14

Hwit, Emil. "Rekommenderad framledningstemperatur i fjärrvärmenät baserat på rökgaskondensering : En beräkningsundersökning av rökgaskondensering och fjärrvärme i en medelstor svensk stad." Thesis, Högskolan i Gävle, Energisystem och byggnadsteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-30227.

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Fjärrvärme är den vanligaste uppvärmningsformen i Sverige och mer än hälften av alla lokaler och bostäder får sin uppvärmning från gemensamma fjärrvärmeanläggningar. Rökgaskondensering producerar 11 % av all fjärrvärme vilket gör den till den tredje största fjärrvärmeproducenten i Sverige. Det är därför är det viktig att den är så effektiv som möjligt. För att öka effektiviteten i förbränningsanläggningar i fjärrvärmesystem kan rökgaskondensering installeras i sammanband med de flesta bränslen som avger fuktig ånga. Rökgaskondenseringen har en viktig roll i samhället då den tar vara på energi

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15

Ohle, Andrea. "CO2-Abtrennung aus Gasströmen durch Absorption in Poly(methyldiglykol)amin." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2009. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-23497.

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In dieser Dissertation wird ein Prozess für die absorptive CO2-Abtrennung aus Gasströmen vorgestellt, der durch die Nutzung des neu entwickelten Waschmittels GenosorbN in einem Postcombustion-Prozess einen geringeren Energiebedarf als bisher bekannte Verfahren aufweist. Für die Nachrüstung bereits vorhandener Kraftwerke ist der Postcombustion-Prozess vorteilhaft, da er im Vergleich zum IGCC- oder dem Oxyfuel-Verfahren die geringsten Änderungen im Kraftwerksprozess selbst erfordert. Die bisher für die CO2-Abtrennung diskutierten Absorptionsmittel, wie z. B. MEA (Mono-Ethanol-Amin), haben allerd

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16

Virk, Akashdeep Singh. "Heat Transfer Characterization in Jet Flames Impinging on Flat Plates." Thesis, Virginia Tech, 2015. http://hdl.handle.net/10919/52985.

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The experimental work involves calculation of radial distribution of heat transfer coefficient at the surface of a flat Aluminium plate being impinged by a turbulent flame jet. Heat transfer coefficient distribution at the surface is computed from the measured heat flux and temperature data using a reference method and a slope method. The heat transfer coefficient (h) has a nearly bell shaped radial distribution at the plate surface for H/d =3.3. The value of h drops by 37 % from r/d =0 to r/d= 2. Upon increasing the axial distance to H/d = 5, the stagnation point h decreased by 15%. Adiabati

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17

Vidlák, David. "Využití absorpčních systémů v teplárenství." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-378742.

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Main goal of this work is familiarization with basic features of absorption heat pumps and it’s growing importance on the market. In the first part of the work there is a research for clarifying facts associated with such pumps. In the introduction there are descriptions of basic information from the field of heating industry and its connections to our systems. Next there is a brief analysis of price changes in electricity and heat in the last five years. Main part of the analytical section is a description of the used absorption system. Second part of the work is focused on the calculation of

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18

Nagaiah, Narasimha. "NOVEL CONCEPTUAL DESIGN AND ANLYSIS OF POLYMER DERIVED CERAMIC MEMS SENSORS FOR GAS TURBINE ENVIRONMENT." Master's thesis, University of Central Florida, 2006. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4086.

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Technical challenges for developing micro sensors for Ultra High Temperature and turbine applications lie in that the sensors have to survive extremely harsh working conditions that exist when converting fuel to energy. These conditions include high temperatures (500-1500°C), elevated pressures (200-400 psi), pressure oscillations, corrosive environments (oxidizing conditions, gaseous alkali, and water vapors), surface coating or fouling, and high particulate loading. Several technologies are currently underdeveloped for measuring these parameters in turbine engines. One of them is an opti

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Macenauerová, Tereza. "Vliv vnitřní recirkulace spalin na charakteristické parametry spalování." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232140.

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This thesis deals with the evaluation of emissions of NOx and CO formed during the combustion process when the burner utilizing fuel staging and internal flue gas recirculation is used. In the theoretical part the NOx formation mechanisms and methods used to suppress their formation are described. This is followed with the currently valid legislation in the Czech Republic in terms of the emission limits for NOx and CO in stationary sources. In the work, combustion tests were performed at the burners testing facility at UPEI BUT. The tests revealed that the most important parameters, which infl

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Jacobi, Christoph, and Daniel Mewes. "Heat flux classification of CMIP5 model results using self-organizing maps." Universität Leipzig, 2019. https://ul.qucosa.de/id/qucosa%3A74181.

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We used the self-organizing maps (SOMs) method on eight models that participated in the Coupled model intercomparison project phase 5 (CMIP5) and two different greenhouse gases (GHG) concentration experiments. The SOMs were created from the winter 500 hPa horizontal temperature flux for each model. The clustering by the SOM revealed that in addition to the three flux pathways found in reanalyses (Pacific, Atlantic and Siberian/continental pathway), superpositions of these occur for the free running climate models, which develop their dynamic more freely than the reanalyses. It was found that t

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21

Gunathilake, Chamila Asanka. "SOFT-TEMPLATING SYNTHESIS OF MESOPOROUS SILICA-BASED MATERIALS FOR ENVIRONMENTAL APPLICATIONS." Kent State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=kent1471543020.

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22

Wasson, Rachel Ann. "Separation of the Heat Transfer Components for Diffusion Flames Impinging onto Ceilings." Thesis, Virginia Tech, 2014. http://hdl.handle.net/10919/50588.

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Two series of experiments were performed to determine the flow characteristics and to quantify the heat transfer components from a propane diffusion flame impinging onto a ceiling. A 0.3 m square sand burner with propane as the fuel type provided a steady-state fire. In the first series of experiments, measurements of gas temperature and velocity were made at 76 mm vertical intervals above the burner up to the ceiling. Fire heat release rates (HRRs) of 50 kW and 90 kW with free flame length to ceiling height ratios, Lf/H, of 2, 1.5, 1, 0.8, 0.85 were used to determine their effects on the m

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23

Olivella, Pastallé Sebastià. "Nomsothermal multiphase flow of brine and gas through saline media." Doctoral thesis, Universitat Politècnica de Catalunya, 1995. http://hdl.handle.net/10803/6261.

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Presentamos una formulación nueva para el análisis de problemas Termo-hidro-mecánicos en medios salinos. Esta formulación incluye, desde la obtención de ecuaciones de balance de masa, momento y energía hasta su resolución numérica, incluyendo la derivación de algunas ecuaciones constitutivas. El programa de calculo resultante (Code Bright) puede usarse para analizar problemas reales de sistemas de sellado construidos con agregados porosos de sal, que era la motivación original de este trabajo.<br/><br/>Las ecuaciones de balance se han formulado teniendo en cuenta que en un medio salino existen

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24

Müller, Jan. "Kondenzační technika a odvody spalin." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-226844.

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This thesis is developed as a proposal for heating for a primary school and kindergarten in the region of Brno-countryside. For the insulated building, a combination of heating and air-conditioning is proposed. The concept is designed so that the air-conditioning preheats the exterior air and the heating system warms the incoming air to a comfortable temperature. For the required thermal performance, sources of heat (for gas and pellets) and a layout solution for the boiler room is designed. Drainage of combustion products is proposed for both solutions. The project solution is per the extent

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Pearson, Sophie C. P. "Diffuse Degassing and the Hydrothermal System at Masaya volcano, Nicaragua." Scholar Commons, 2010. https://scholarcommons.usf.edu/etd/1736.

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Hydrothermal systems change in response to volcanic activity, and in turn may be sensitive indicators of volcanic activity. Fumaroles are a surface manifestation of this interaction. We use time series of soil temperature data and numerical models of the hydrothermal system to investigate volcanic, hydrologic and geologic controls on this diffuse degassing. Soil temperatures were measured in a low-temperature fumarole field located 3.5 km from the summit of Masaya volcano, Nicaragua. They respond rapidly, on a time scale of minutes, to changes in volcanic activity also manifested at the summit

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Bouhara, Ammar. "Etude theorique et experimentale de la mesure par thermocouples de la temperature dans un flux gazeux instationnaire : application aux gaz d'echappement d'un moteur." Paris 6, 1987. http://www.theses.fr/1987PA066149.

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27

Dadgostar, Shabnam. "(Al,Ga)(As,P) structures in the GaP matrix." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät, 2016. http://dx.doi.org/10.18452/17576.

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GaP ist ein Halbleiter mit einer großen Bandlückenenergie und infolgedessen transparent im größten Teil der sichtbaren Wellenlängen. GaP hat außerdem die kleinste Gitterfehlanpasung zu Si (weniger als 0.4%). Das macht GaP ein interessantes Material für monolithische Integration zu III–V Lichtsender auf Si. Diese Arbeit ist eine Untersuchung über die strukturellen und optische Eigenschaften von (Al, Ga) (As, P) Heterostrukturen auf GaP (001) -Substrat aufgewachsen. Die Einflüsse des PH3 Fluss und Wachstumstemperatur untersucht auf dem Kristallqualität und Oberflächenqualität von AlGaP/Ga

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Kazanjian, Garabet. "Primary production in shallow freshwater systems amid a rapidly changing world." Doctoral thesis, Humboldt-Universität zu Berlin, 2019. http://dx.doi.org/10.18452/20561.

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Kleine, flache Gewässer gelten als sogenannte „hotspots“ der Primärproduktion und Kohlenstoffbindung. Diese Doktorarbeit zielt darauf ab, die Primärproduktion verschiedener kleiner Gewässer zu quantifizieren sowie die Mechanismen, die den Kohlenstoffkreislauf dieser Systeme beeinflussen, zu analysieren. Der Fokus liegt dabei auf dem Einfluss globaler Veränderungen, die diese Mechanismen verändern können Im ersten Abschnitt wurde die Primärproduktion (PP) in kleinen, temporären Söllen untersucht, die sehr anfällig für Störungen sind. Ich konnte zeigen, dass die PP der Sölle im Sommer außergewö

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Vaníček, Jan. "Termomechanický model pneumatiky." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-445170.

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This diploma thesis is about thermomechanics of passenger car tires. The research part dealing with existing tire models is followed by the practical part. The practical part is based on the designs of thermomechanical models. The first model determines a dependence of temperature on the air pressure inside a tire when a temperature changes. The second thermomechanical model captures all the heat fluxes which affect a tire while a vehicle is in motion. The third thermomechanical model calculates temperatures of parts of the tire during driving tests. All models are programmed in MATLAB.

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Wong, William Chiu-Kit. "CFD Flame Spread Model Validation: Multi-Component Data Set Framework." Digital WPI, 2012. https://digitalcommons.wpi.edu/etd-theses/918.

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"Review of the literature shows that the reported correlation between predictions and experimental data of flame spread vary greatly. The discrepancies displayed by the models are generally attributed to inaccurate input parameters, user effects, and inadequacy of the model. In most experiments, the metric to which the model is deemed accurate is based on the prediction of the heat release rate, but flame spread is a highly complex phenomenon that should not be simplified as such. Moreover, fire growth models are usually made up of distinctive groups of calculation on separate physical phen

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Poulet, Lucie. "Développement de modèles physiques pour comprendre la croissance des plantes en environnement de gravité réduite pour des apllications dans les systèmes support-vie." Thesis, Université Clermont Auvergne‎ (2017-2020), 2018. http://www.theses.fr/2018CLFAC026/document.

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Les challenges posés par les missions d’exploration du système solaire sont très différents de ceux de la Station Spatiale Internationale, puisque les distances sont beaucoup plus importantes, limitant la possibilité de ravitaillements réguliers. Les systèmes support-vie basés sur des plantes supérieures et des micro-organismes, comme le projet de l’Agence Spatiale Européenne (ESA) MELiSSA (Micro Ecological Life Support System Alternative) permettront aux équipages d’être autonomes en termes de production de nourriture, revitalisation de l’air et de recyclage d’eau, tout en fermant les cycles

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Li, An-Sheng, and 李安勝. "1.Biohydrogen Dark Fermentation2.High Temperature Flue Gas Cleaning." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/98909213577320029334.

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碩士<br>逢甲大學<br>化學工程學所<br>92<br>In this thesis, there are two parts: one is the Biohydrogen dark fermentation with immobilized clostridium SP, the other is High temperature flue gas cleaning. Hydrogen dark fermentation was carried out by the immobilized technique with anaerobic sludge, sucrose substrates and different hydraulic retention times (HRT), which are 6, 4, 2, 1 and 0.5 hours, and various concentrations such as 10000, 20000, 30000 and 40000 mg COD/L. All the operations were proceed in a process of CSTR, and the butyric acid and acetic acid were the main products in the soluble metabolit

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Chen, Chien Chou, and 陳建州. "Measuring the amount of vapor on the high-temperature flue gas." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/15714357667023893050.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>87<br>The amount of vapor contained in fuel gas affects not only the gas temperature,but also the smoke opacity. The paper is to design a system measuring the amount of vapor on the high-temperature flue gas with the idea of dry-wet bulb thermocouples. Comparing with the traditional hygroscopic method , we just need two thermocouples and an atomizing system on our measuring method. Using our method, it is more easy and cheaper.

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Lin, Yun-Ting, and 林韻庭. "Effects of flue gas composition on NO removal under mid-temperature via NH3-SCR catalyst." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/6wkbns.

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Yang, Hsien-Chang, and 楊憲昌. "Effects of Components of Flue Gas on the Reaction of Limestone with SO2 at Low Temperature." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/57733155882819872177.

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碩士<br>國立臺灣大學<br>化學工程學研究所<br>89<br>Abstract A differential fixed-bed reactor was employed to study the effects of the components of flue gas on the reaction of limestone with SO2 at low temperatures under the conditions silimiar to those in the bag filters of the spray-drying flue gas desulfurization system. Limestone was from Her-Ping , Hualien , and was ground to a BET surface area of 21.4m2/g. The rate of the reaction between limestone amd SO2 increased as relative humidity or SO2 concentration increased . The rate , being unaffected by the presence of CO2 , was signifi

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Yeh, Ching-Sheng, and 葉錦森. "Effect of CO2 concentration in flue gas and its temperature on syrup carbonation and impurities removal." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/29438634239182183168.

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碩士<br>國立屏東科技大學<br>環境工程與科學系所<br>98<br>Abstract Student ID: N9731013 Title of Thesis: Effect of CO2 concentration in flue gas and its temperature on syrup carbonation and impurities removal Total Pages:82 Name of Institute: National Pingtung University of Science and Technology Name of Department: Department of Environmental Engineering and Science Date of Graduation: June, 2010 Name of Student : Ching-Sheng Yeh Degree Conferred: Master Adviser : Dr. Kuo-Ching Chang The Contents of Abstract in this Thesis: The greenhouse effect has caused the atmospheric temperatures increase and climate ch

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Wu, Jo-Yu, and 吳若瑜. "CO2 Capture from Flue Gas of Gasoline Power Generator with 13X zeolite by a Dual-bed Temperature/Vacuum Swing Adsorption." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/54222012626380227547.

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碩士<br>國立中興大學<br>環境工程學系所<br>102<br>Commercially available spherical 13X zeolite was employed as sorbents for CO2 capture from synthetic gas of cylinder and flue gas of gasoline power generator by a dual-bed temperature/vacuum swing adsorption system. Each column of dual-bed system consisted of cylindrical shell and inner column which was designed to pass through the steam fluid or the cooling water to increase or decrease the temperature of the inner column. The research included two parts as follows: The first part was the selection of the optimum sorbent to capture carbon dioxide. The adsorp

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Mabuza, Major. "Evaluating the adsorption capacity of supercritical carbon dioxide on South African coals using a simulated flue gas." 2013. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1000996.

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M. Tech. Engineering Chemical.<br>Aims to investigate how the addition of impurities in a CO2 stream affects the adsorption capacity of CO2 on South African coals. To achieve this aim, the following objectives were carried out. 1. To measure the adsorption isotherms and adsorption capacities of pure CO2 and flue gas mixtures on various South African coals under in-seam conditions including pressures up to 88 bar and isothermal temperature of 35 &#x00BA%x;C; 2. To evaluate the effects of coal rank on the adsorption isotherms and adsorption capacities of pure CO2 and flue gas mixtures; 3. To do

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"High frequency gas temperature and surface heat flux measurements." Université catholique de Louvain, 2005. http://edoc.bib.ucl.ac.be:81/ETD-db/collection/available/BelnUcetd-09132005-115726/.

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Owens, Owen C. "Wintertime measurements of pCO2 in Arctic landfast sea ice." 2008. http://hdl.handle.net/1993/3093.

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Recent work has described how gas exchange can occur through sea ice. First, carbon fluxes over sea ice surfaces have been measured. Second, sea ice brine has an elevated capacity over seawater to absorb CO2(g) due to its cold temperature and chemical equilibrium promoting carbon phase changes. Sea ice pCO2 profiles were collected using a new method of remotely sampling gas in situ via diffusive membranes placed within growing sea ice. Gas analysis was complimented by measurements of local meteorology and ice chemistry. The work was part of the CASES 2004 project. The observed elevation

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Zisheng, Xing. "A simple net ecosystem productivity model for gap filling of tower-based fluxes." Thesis, 2007. http://hdl.handle.net/1882/1053.

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In response to global climate change, many important earth-systems-oriented science programs have been established in the past. One such program, the Fluxnet program, studies the response of world forests and other natural ecosystems by measuring biospheric fluxes of carbon dioxide (CO2), water vapour, and energy with eddy-covariance (EC) techniques to assess the role of world ecosystems in offsetting increases in CO2 emissions and related impacts on global climate. The EC methodology has its limitations particularly when weather is inclement and during system stoppages. These limitations crea

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Wang, Jonathan. "Methane Fluxes at a Temperate Upland Forest in Central Ontario." Thesis, 2012. http://hdl.handle.net/1807/33579.

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Methane fluxes were calculated from measurements carried out at a temperate upland forest in Central Ontario using the eddy covariance method over five months in the summer and fall seasons of 2011. Measurements were made by an off-axis integrated cavity output spectrometer Fast Greenhouse Gas Analyzer (FGGA) which simultaneously measured methane (CH4), carbon dioxide (CO2), and water at 10 Hz sampling rates. Observed methane fluxes showed net uptake of methane over the measurement period with an average uptake flux value (±standard deviation of the mean) of -2.7±0.13 nmol m-2 s-1. Methane flu

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