Relevant bibliographies by topics / Excess air

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Excess air'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Excess air"

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Gunawan, Wawan, and Bambang Ali Gunawan. "STUDI EFISIENSI BOILER TERHADAP NILAI KALOR BATUBARA PADA BOILER JENIS PULVERIZER COAL KAPASITAS 300 T/H." Jurnal Intent: Jurnal Industri dan Teknologi Terpadu 3, no. 2 (2020): 122–30. http://dx.doi.org/10.47080/intent.v3i2.958.

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Boiler merupakan proses terjadinya pembakaran bahan bakar batubara pada bejana tertutup yang digunakan untuk menghasilkan steam. Steam tersebut dapat menggerakkan turbine-generator untuk menghasilkan listrik. Excess air merupakan persentase oksigen didalam fraksi massa yang terkandung didalam udara hasil pembakaran (flue gas). Nilai excess air dan efisiensi pada mesin boiler dapat diketahui dengan metode analisa deskriptif dan analisa perhitungan. Tujuan penelitian ini adalah untuk mengetahui pengaruh nilai kalor batubara terhadap nilai efisiensi dan pengaruh nilai kalor batubara terhadap exce
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Zublev, D. G., S. V. Modakalov, A. V. Sizov, V. D. Barsky, and A. V. Kravchenko. "Determining the air excess in the heating of coke furnaces. 3. Calculation of the air excess." Coke and Chemistry 60, no. 3 (2017): 108–12. http://dx.doi.org/10.3103/s1068364x17030085.

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Chen, Jia Min. "Research on the Realization of the Maximum Benefit of Thermal Power." Applied Mechanics and Materials 713-715 (January 2015): 660–63. http://dx.doi.org/10.4028/www.scientific.net/amm.713-715.660.

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First, Anti-balance method is used to build the model of q2,q3,q4 to figure out the Function expression of q2+q3+q4 .when q2+q3+q4 gets the minimum, the corresponded to the excess air ratio is the best excess air ratio. The excess air ratio is related to the load of boiler, so the function image describing the relationship between q2+q3+q4 and excess air ratio under the different load of 192.3MW, 215.8MW, 245.3MW and 298MW are made to get the best excess air ratio. Second, based on the model before, new variables q5 and q6 are added to complete the function formula of the efficiency and the ex
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Mataufani, Caesariski Erwald, Abdurahim Sidiq, and Jainal Arifin. "Analisis Pengaruh Kalori Batubara dan Excess Air Pada Boiler CFB Dengan Metode CFD (Ansys)." Jurnal Teknik Industri Terintegrasi 6, no. 1 (2023): 27–40. http://dx.doi.org/10.31004/jutin.v6i1.13930.

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The Pulang Pisau Steam Power Plant (PLTU) uses a CFB type boiler with a coal consumption of 4,054-5,260 kCal/kg. This research was carried out by modeling the CFB type boiler used in the Pulang Pisau PLTU using Autodesk Inventor 2021 then for the iteration process using Ansys Fluent 2022 R2, the excess air variation used is 5%, 10%, 15%, 20%, and 25%. Based on the results of iteration using Ansys Fluent 2022 R2 with 4,054-5,260 kCal/kg calorie coal, for the addition of 5% excess air, the temperature at the outlet furnace is 2,199°C, for the addition of 10% excess air, the temperature at the ou
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Sun, Cong. "The Optimal Operation Problem of Boilers." Advanced Materials Research 953-954 (June 2014): 1454–58. http://dx.doi.org/10.4028/www.scientific.net/amr.953-954.1454.

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Boiler optimum efficiency problem can be solved by optimum excess air coefficient model. It is the key to find the relationship between main factors and the excess air coefficient. These main factors are smoke exhaust heat losschemistry incomplete combustion heat loss and mechanical incomplete combustion heat loss.In this paper, we projected the relationship between the factors and the excess air coefficient by using the computational formulas of principles of boiler. Then we synthesized the three formulas to establish the excess air coefficient model. Finally, this paper geted the optimum exc
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Phakut, Athiti, Thiranan Kunanopparat, and Suwit Siriwattanayotin. "Effect of Excess Air Levels on PAHs Content in Smoke During Charcoal Combustion in Grilling Process." Journal of Food Engineering and Technology 9, no. 2 (2020): 83–88. http://dx.doi.org/10.32732/jfet.2020.9.2.83.

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Charcoal grilling may lead to carcinogenic PAHs contamination of grilled food from incomplete combustion of charcoal. The objective of this study was to determine the effect of complete combustion of charcoal on PAHs content in smoke during the grilling process. Firstly, proximate and ultimate compositions of the charcoal were determined to identify the amount of air required for combustion according to stoichiometry. Different excess air levels consisting of stoichiometric air, 60, 100 and 150% excess air during combustion of charcoal on 16 PAHs released in smoke were studied. Moreover, CO an
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Su, Ya Xin, and Wen Hui Wang. "Combustion Performance and NO Emission in Industrial Furnace under Preheated Air Condition with Different Excess Air Ratio." Advanced Materials Research 402 (November 2011): 463–66. http://dx.doi.org/10.4028/www.scientific.net/amr.402.463.

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The effect of excess air ratio on combustion performance in an industrial furnace with a swirling burner was numerically modeled. The simulation was carried out at inlet oxygen fraction of 8% and a preheated air temperature of 1273 K for natural gas. The gas combustion process was calculated by a Beta function PDF (Probability Density Function) combustion model. The transportation of the turbulent flow in the furnace was modeled by Reynolds Stress Model (RSM). The radiation was simulated by a Discrete Ordinates method. The NO chemistry was simulated by thermal NO model. The effect of excess ai
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Levin, Yuriy, Evgeny Fedyanov, Dmitrii Gurulev, and Evgeny Itkis. "The effect of hydrogen additives on fuel consumption and hydrocarbon emissions in gasoline fuelled Wankel rotary engine." E3S Web of Conferences 402 (2023): 04002. http://dx.doi.org/10.1051/e3sconf/202340204002.

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Experimental data for Wankel rotary engine performance on hydrogen blends with hydrocarbon fuel is presented. Researches are performed on partial loads and idle. Hydrogen mass fraction additions to the fuel mixture didn’t exceed at partial loads 5% and idle mode 9%. The excess air ratio was stoichiometric. It is shown that for partial loads (20% of full load) and engine speed 2000 rotary per minute 5% hydrogen addition yields to 4.2% decrease of brake specific fuel consumption (hydrogen consumption was converted to gasoline consumption computed proportionally to their combustion heats ratio).
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Catana, Razvan Marius, and Grigore Cican. "Study of Air Excess in Relation with Engine Parameters for a Generalized Reaction Based on JET-A Fuel." Applied Mechanics and Materials 772 (July 2015): 395–400. http://dx.doi.org/10.4028/www.scientific.net/amm.772.395.

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In this paperwork we are studying the performance of a combustion process into a jet engine combustion chamber, more specifically the relations between excess of air, overall pressure ratio and inlet turbine temperature for a combustion reaction based on a jet A fuel. The study present a method of calculating the excess of air for a generalized combustion reaction based on Jet A fuel indicated by the general formula , for different temperatures of air, different temperatures of fuel and different inlet turbine temperatures. The result of this study is to achieve diagrams in which are presented
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Peng, Yu-Hui, Yu-Peng Huang, Jia-You Tang, Qi-Feng Huang, and Yi-Ran Huang. "Experimental Study on the Effects of Air Supply Control on Combustion and Emissions Performance at Medium and Low Load for a Dual-Fuel Diesel Engine." Energies 11, no. 11 (2018): 2944. http://dx.doi.org/10.3390/en11112944.

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Lowering the amount of excess air is believed to increase the density of the air-fuel mixture and help improve the combustion rate for compression ignition engines. This paper proposes an approach of adding a throttle body at the intake pipe to control the excess air ratio with reduction of air supply to achieve a better balance between the power, emissions and fuel efficiency at medium and low load of a natural gas dual-fuel diesel engine converted from a conventional diesel engine. Various experiments in both pure diesel and dual-fuel mode under intermediate engine speed are performed with t
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Dissertations / Theses on the topic "Excess air"

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Бабак, В. П., А. А. Запорожец та А. А. Редько. "Экспериментальные исследования изменения объемной концентрации кислорода в воздухе и его влияние на процесс горения". Thesis, Международна Академия по безразрушителен контрол, 2016. http://er.nau.edu.ua/handle/NAU/26850.

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The effect of changes the volume oxygen concentration in the air on the combustion process are showed. Suggested the model for calculating the current concentration of oxygen in air depending from the main meteorological parameters – temperature, absolute pressure and relative humidity. Performed the experimental studies of the daily/seasonal changes of volume oxygen concentration in the air on the basis of direct and indirect measurements. Performed a metrological evaluation of results, confirmed the adequacy of the proposal model. Proposed a formula for calculating the air excess ratio base
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Winkler, Renato. "Triple-oxygen isotopic composition of meteoric waters : 17 O-excess a new tracer of the hydrological cycle." Versailles-St Quentin en Yvelines, 2012. http://www.theses.fr/2012VERS0040.

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Les enregistrements des carottes glaciaires permettent de renseigner les mécanismes climatiques des derniers 800 000 ans et ainsi d'améliorer les projections climatiques pour le futur. Cette thèse est basée sur l'utilisation de la composition isotopique de l'eau dans les carottes de glace pour l'étude des mécanismes du cycle hydrologique global. Nous avons analysé la composition isotopique triple de l'eau (17Oexcess) comme traceur de l'humidité relative lors de l'évaporation au-dessus de l'océan. Les résultats principaux sont les suivants : des études de calibration au laboratoire et sur le te
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Klump, Stephan Rüdiger. "The formation of excess air in groundwater studied using noble gases as conservative tracers in laboratory and field experiments /." Zürich : ETH, 2007. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=17168.

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Pedrosa, Ane. "Development of a stove to meet the new environmental requirements." Thesis, Högskolan i Gävle, Energisystem, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-26924.

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Sjöberg, Einar, and Christian Eriksson. "Environmental impact of excess air in secondary packaging : A qualitative study of green packaging development theory versus practice in modern e-commerce." Thesis, Södertörns högskola, Företagsekonomi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-42101.

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The growing e-commerce industry and online shopping is increasing the demand for transportation services world-wide. This expanding industry is beneficial for the economic aspects of society, but the transportation of packages is also causing major environmental impacts along the supply chain. The environmental impact of waste and emissions attributed to the manufacturing and shipment of packages are concluded by many scholars, stressing the importance of sustainable alternatives and innovations. Environmental concerns perceived by customers, governments and other stakeholders are increasingly
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Draštík, Pavel. "Přeprava nadrozměrného sportovního vybavení v letecké dopravě." Master's thesis, Vysoká škola ekonomická v Praze, 2010. http://www.nusl.cz/ntk/nusl-74683.

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This work describes the transportation of excess sports equipment by air travel in particular with regard to the liability of air carriers in case of destruction, loss, damage or delay. Increased attention is paid to transportation to specific surf destinations, e.g. Canary Islands and island of Bali in Indonesia. The aim is to confirm or refute the unsatisfactory situation in the field of transportation of excess sports equipment by air travel, own survey was carried out for this purpose.
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Krusely, Julian Joseph. "What Percentage of the Security Forces at MacDill AFB Experience Exposure to Noise in Excess of the OSHA PEL and the Air Force OEEL?" Scholar Commons, 2016. http://scholarcommons.usf.edu/etd/6286.

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Noise-related hearing loss has been listed as one of the most prevalent occupational health concerns in the United States for more than 25 years with approximately 30 million people in the US alone occupationally exposed to hazardous noise according to the Occupational Safety and Health Organization. Many people are aware of some risks the military members take every day being at war, but very few think about the risks of the members on a base located stateside. To this point, not much research has been done on these risks, and even less has been done on the hazardous noise risks these service
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Masek, Caroline Humphrey. "Adapting the SCS method for estimating runoff in shallow water table environments." Scholar Commons, 2002. http://purl.fcla.edu/fcla/etd/SFE0000040.

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Soto, Runevall Alexander. "The Swedish Air Passenger Tax : The impact on passenger numbers." Thesis, Linnéuniversitetet, Institutionen för nationalekonomi och statistik (NS), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-104861.

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In this essay I have estimated what impact the Swedish air passenger tax that was introduced in Sweden on April 1st in 2018 has had on passenger numbers in Sweden. The tax was introduced to lower demand for air travel within the public and thus, decrease the aviation industry´s greenhouse gas emissions as aviation contributes through these emissions to a large extent to climate change and is expected to have an even greater impact in the future as the number of air travels are expected to grow continuously. Besides that the emissions from aviation have this large negative impact on the climate
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Michalaki, Maria. "Air Pollution in Gothenburg : Children's exposure to NO2 on a neighborhood level." Thesis, Umeå universitet, Institutionen för geografi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-172742.

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Air pollution is a global problem and concern that affects every nation around the world.One of the chemical elements that is part of bad air quality is Nitrogen Dioxide (NO2).Children are a vulnerable group to air pollution due to their immature health system, thusplanning for safe and healthy neighborhoods is essential for their future development.Sweden is a one of the international leaders of sustainable development, with Gothenburgone of the main cities in the country that has an impressive ecological concern. The purposeof this study is to measure the exposure of children, ages 0 – 15 ye
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Books on the topic "Excess air"

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Quarles, Perrin. Handbook for the review of excess emission reports. The Office, 1986.

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Quarles, Perrin. Handbook for the review of excess emission reports. The Office, 1986.

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Quarles, Perrin. Handbook for the review of excess emission reports. The Office, 1986.

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IEEE Power Engineering Society. Switchgear Committee., ed. IEEE loading guide for AC high-voltage air switches (in excess of 1000 V). Institute of Electrical and Electronics Engineers, 1996.

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Office, General Accounting. Military logistics: Buying Army spares too soon creates excess stocks and increases costs : report to the Secretary of the Army. The Office, 1989.

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IEEE Power Engineering Society. Switchgear Committee. and American National Standards Institute, eds. IEEE loading guide for AC high-voltage air switches under emergency conditions: Supplement to IEEE loading guide for AC high-voltage air switches (in excess of 1000 volts). The Insitute of Electrical and Electronics Engineers, Inc., 1993.

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Office, General Accounting. Operation Desert Storm: Disposal and sale of excess items : fact sheet for Congressional requesters. U.S. General Accounting Office, 1992.

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Office, General Accounting. Inventory management: Better controls needed to prevent misuse of excess DOD property : report to the Honorable Duncan L. Hunter, House of Representatives. The Office, 2000.

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Office, General Accounting. Navy supply: Excess inventory held at the Naval aviation depots : report to the Chairman, Subcommittee on Readiness, Committee on Armed Services, House of Representatives. The Office, 1992.

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Office, General Accounting. Defense inventory: Improvements needed to prevent excess purchases by the Air Force : report to the Chairman, Subcommittee on National Security, Veterans Affairs, and International Relations, Committee on Government Reform, House of Representatives. The Office, 1999.

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Book chapters on the topic "Excess air"

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Moerman, E., and K. Krishna Prasad. "Clean Combustion and Excess Air Factors." In Combustion Technologies for a Clean Environment. CRC Press, 2022. http://dx.doi.org/10.1201/9780367810597-36.

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Ye, Yalan, Wenhao Jiang, Hongming Wang, and Xiang An. "A New Method for Calculating Excess Air Ratio." In Lecture Notes in Electrical Engineering. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-3648-5_97.

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Srivastava, Vishnu Chandra. "Elemental Concentrations in Soil, Water and Air." In Sustainable Solutions for Elemental Deficiency and Excess in Crop Plants. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-8636-1_1.

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Barber, Daniel A. "Living Too Close to the Sun." In Solarities. punctum books, 2023. http://dx.doi.org/10.53288/0404.1.15.

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Since about 2010, a number of so-called supertall residential towers have arisen in Manhattan, puncturing the skyline. Referred to as pencil towers for their tall, skinny profile, these buildings represent the pinnacle of a contemporary form of architectural excess, a virtuosic expression of the financial machinations of the super-rich. They are also reliant on excessive carbon expenditures – tall, sealed buildings that cannot be lived in without mechanical heating, ventilation, and air-conditioning systems. What is especially suggestive, in the context of solarity, are the precise terms of th
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Nkeng, G. E., and A. Akah. "The Optimisation of Excess Air and Stack Temperature for the Improvement of Thermal Efficiency and Environmental Performance of Steam Boilers." In Advanced Materials Research. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-450-2.415.

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Philippopoulos-Mihalopoulos, Andreas. "The Funambulist Atmosphere." In The Funambulist Papers, Volume 1. punctum books, 2013. https://doi.org/10.21983/p3.0053.1.19.

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Funambulist bodies move about, careful not to fall into each other, mindful of the drop below, pulsating along the tension of the ropes beneath. Bodies construct atmosphere on the arch of their move-ment. Atmosphere constructs bodies between its folds. On one hand are atmospheres of tension or rest, engineered or emergent, prom-ised or promising. On the other hand are bodies of flesh as well as discourse, materialities that keep on fluctuating between the abstract and the concrete, bodies of human tissue, of technology, of animal-ity, vegetable bodies whose roots extend to my feet. Where am I?
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Wicaksono, Aryo, and Bambang Arip Dwiyantoro. "Numerical Study of the Effect of Excess Air Variation and Biomass Amount at Co-Firing Process for Tangential Coal Pulverized Boiler." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-0867-5_32.

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Cetnar, Dan, Petr Vojtech, and H. P. H. Muijsenberg. "A Furnace Combustion System Conversion by Flammatec during Operation at Libbey, Inc. - How Flame Geometry Improvement and Excess Air Control Contributes to Fuel Savings." In 73rd Conference on Glass Problems. John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118710838.ch7.

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Akpolat, Veysi, and İrem Akpolat. "Radionuclides in Food." In Food Safety. Nobel Tip Kitabevleri, 2024. http://dx.doi.org/10.69860/nobel.9786053358787.24.

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Radiation can be found naturally or can be created by human-made artificial sources. Radioactive unstable elements divide to become stable, they release the excess energy in their nuclei to their surroundings by producing different types of radiation. This uranium, radium, thorium, potassium, etc. on earth. Cosmic rays coming from the sun and outer space, together with unstable elements, create a certain level of natural radiation in the environment. Therefore, natural radiation comes from many naturally occurring radioactive substances found in the soil, water, air and body in the environment
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Holst, Jens-Christian, Katrin Müller, Florian Ansgar Jaeger, and Klaus Heidinger. "City Air Management: LCA-Based Decision Support Model to Improve Air Quality." In Towards a Sustainable Future - Life Cycle Management. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-77127-0_4.

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AbstractSiemens has developed an emission model of cities to understand the root cause and interactions to reduce air emissions. The City Air Management (CyAM) consists of monitoring, forecasting and simulation of measures. CyAM model aims to provide formation on air pollution reduction potential of short-term measures to take the right actions to minimize and avoid pollution peaks before they are likely to happen. The methodology uses a parameterized life cycle assessment model for transport emissions and calculates the local impact on air quality KPIs of individual transport measures at the
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Conference papers on the topic "Excess air"

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Wang, Lingfeng, Lei Wang, Zhiyang Liu, and Hongye Su. "Constrained Adaptive Simultaneous Control of Oxygen Excess Ratio and Cathode Pressure for PEMFC Air Supply System." In 2024 China Automation Congress (CAC). IEEE, 2024. https://doi.org/10.1109/cac63892.2024.10865348.

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Meng, Jianwen, Meiling Yue, and Demba Diallo. "Oxygen Excess Ratio Regulation for PEMFC Air Supply Systems Using Unscented Kalman Filter and Full-State Feedback Control." In 2024 Prognostics and System Health Management Conference (PHM). IEEE, 2024. http://dx.doi.org/10.1109/phm61473.2024.00056.

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Morales, Pablo Vizguerra, Miguel �ngel Morales Cabrera, and Fabian S. Mederos Nieto. "Analysis for CFD of the Claus Reaction Furnace with Operating Conditions: Temperature and Excess Air for Sulfur Recovery." In The 35th European Symposium on Computer Aided Process Engineering. PSE Press, 2025. https://doi.org/10.69997/sct.176489.

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In this work, a Claus reaction furnace was analyzed in a sulfur recovery unit (SRU) of the Abadan Oil Refinery where the combustion operating temperature is important since it ensures optimal performance in the reactor, this study focused on temperature of control of 1400, 1500 and 1600 K and excess air of 10, 20 and 30% to improve the reaction yield and H2S conversion. The CFD simulation was carried out in Ansys Fluent in transitory state and in 3 dimensions, considering turbulence model ? -e standard, energy model with transport by convention and mass transport with chemical reaction using t
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Gizatullina, Daniya, Mikhail Nikolaev, Emilia Valeeva, Raushania Gaifullina, and Elvira Zaikina. "PRIORITY AIR POLLUTANTS AS GLOBAL RISK FACTORS FOR PUBLIC HEALTH (ON THE EXAMPLE OF KAZAN)." In 24th SGEM International Multidisciplinary Scientific GeoConference 2024. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/5.1/s20.28.

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The results of our study revealed regional peculiarities, which showed an excess of the share of PM10 compared to PM2.5 in the rank distribution and high concentration of soot in the level of impact on public health. It was found that the distribution in terms of contribution to the total risk value (HQ) of the main pollutants is highest in all three zones: carbon (soot), nitrogen dioxide (NO2), suspended solids (PM), where the main share is suspended particles up to 10 microns (PM10). Among the studied zones, zone 1 is the most polluted zone in terms of the impact of atmospheric air chemicals
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Nalysko, Mykola, Anna Makhinko, Artem Sopilniak, and Yurii Cheberiachko. "Justification of the Dynamics of Extra-Project Loads on Building Structures." In International Scientific Applied Conference "Problems of Emergency Situations". Trans Tech Publications Ltd, 2024. http://dx.doi.org/10.4028/p-fvtee9.

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The paper analyzes the forms of impact of non-design loads from shock air waves on building structures. The problem of forecasting the dynamics of the explosive load on a building structure (for example, the covering of a buried structure) is solved by the simultaneous solution of the equation of the spatial distribution of excess pressure in the front of a shock air wave and the dependence of the time of its action on the speed of its front. Since the speed of the shock air wave is constantly changing, the equation of the time of the wave action has a differential form, and its solution is es
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Zhang, Yuanshu, Peihong Wang, and Jie Yin. "Optimizing the Excess Air Ratio of Coal-Fired Boiler." In 2012 Second International Conference on Intelligent System Design and Engineering Application (ISDEA). IEEE, 2012. http://dx.doi.org/10.1109/isdea.2012.609.

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Parsa, Mehdi, Ali Vahidian Kamyad, and Mohammad Bagher Naghibi Sistani. "Combustion efficiency optimization by adjusting the amount of excess air." In 2014 5th Conference on Thermal Power Plants (CTPP). IEEE, 2014. http://dx.doi.org/10.1109/ctpp.2014.7040703.

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Zhang, Guanqun. "Study on Optimum Excess Air Coefficient for Power Plant Boilers." In 2015 International Conference on Mechatronics, Electronic, Industrial and Control Engineering. Atlantis Press, 2015. http://dx.doi.org/10.2991/meic-15.2015.315.

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Ng, Jessica, Alan Seltzer, Chandler Noyes, et al. "Revisiting excess air in groundwater with a new hydroclimate tracer." In Goldschmidt2023. European Association of Geochemistry, 2023. http://dx.doi.org/10.7185/gold2023.20412.

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Baukal, Charles E., and Wesley R. Bussman. "Process Heater Air Infiltration." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-39988.

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Process heaters are among the largest energy consumers in industry. Many of them were built years ago and often are not well sealed which leads to excessive air infiltration. Air leaks may be caused by cracks in the wall, by sight ports that are not properly sealed or may even be left open, failure to close air registers for burners that are out of service, improper sealing of penetrations through the heater walls, and by excessive draft levels in the heater. These leaks reduce energy efficiency and indirectly increase pollution emissions as more fuel must be consumed for a given production ra
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Reports on the topic "Excess air"

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Reiner, R. H. Moist air reaction with excess UF{sub 6}. Office of Scientific and Technical Information (OSTI), 1989. http://dx.doi.org/10.2172/10103576.

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2

Fuchs, Marcel, Ishaiah Segal, Ehude Dayan, and K. Jordan. Improving Greenhouse Microclimate Control with the Help of Plant Temperature Measurements. United States Department of Agriculture, 1995. http://dx.doi.org/10.32747/1995.7604930.bard.

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A model of the energy balance of a transpiring crop in a greenhouse was developed in a format suitable for use in climate control algorithms aimed at dissipating excess heat during the warm periods. The model's parameters use external climatic variables as input. It incorporates radiation and convective transfer functions related to the operation of control devices like shading screens, vents, fans and enhanced evaporative cooling devices. The model identified the leaf boundary-layer resistance and the leaf stomatal and cuticular resistance as critical parameters regulating the temperature of
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Jameel, Yusuf, Paul West, and Daniel Jasper. Reducing Black Carbon: A Triple Win for Climate, Health, and Well-Being. Project Drawdown, 2023. http://dx.doi.org/10.55789/y2c0k2p3.

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Black carbon – also referred to as soot – is a particulate matter that results from the incomplete combustion of fossil fuels and biomass. As a major air and climate pollutant, black carbon (BC) emissions have widespread adverse effects on human health and climate change. Globally, exposure to unhealthy levels of particulate matter, including BC, is estimated to cause between three and six million excess deaths every year. These health impacts – and the related economic losses – are felt disproportionately by those living in low- and middle-income countries. Furthermore, BC is a potent greenho
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4

McFaul, Cole, Husanjot Chahal, Rebecca Gelles, and Margarita Konaev. Assessing South Korea’s AI Ecosystem. Center for Security and Emerging Technology, 2023. http://dx.doi.org/10.51593/20220038.

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This data brief examines South Korea’s progress in its development of artificial intelligence. The authors find that the country excels in semiconductor manufacturing, is a global leader in the production of AI patents, and is an important contributor to AI research. At the same time, the AI investment ecosystem remains nascent and despite having a highly developed AI workforce, the demand for AI talent may soon outpace supply.
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Sreethawong, Thammanoon. Natural gas reforming to hydrogen energy in low temperature plasma system : report. Chulalongkorn University, 2009. https://doi.org/10.58837/chula.res.2009.81.

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The effect of stage number of multistage AC gliding arc discharge reactors on the process performance ofthe combined reforming and partial oxidation of simulated CO₂-containing natural gas having a CH₄:C₂H₆:C₃H₈:C0₂ molar ratio of 70:5:5:20 was investigated. For the experiments with partial oxidation, either pure oxygen or air was used as the oxygen source with a fixed hydrocarbon-to-oxygen molar ratio of 211. Without partial oxidation at a constant feed flow rate, all conversions of hydrocarbons, except CO₂, greatly increased with increasing number of stages from 1 to 3; but · beyond 3 stages
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Flici, Farid, and Nacer-Eddine Hammouda. Mortality evolution in Algeria: What can we learn about data quality? Verlag der Österreichischen Akademie der Wissenschaften, 2021. http://dx.doi.org/10.1553/populationyearbook2021.res1.3.

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Mortality in Algeria has declined significantly since the country declared its independence in 1962. This trend has been accompanied by improvements in data quality and changes in estimation methodology, both of which are scarcely documented, and may distort the natural evolution of mortality as reported in official statistics. In this paper, our aim is to detect these methodological and data quality changes by means of the visual inspection of mortality surfaces, which represent the evolution of mortality rates, mortality improvement rates and the male-female mortality ratio over age and time
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Gurung, Bijan, J. Hutchinson, Brian Peterson, et al. Exploring spatial patterns of overflights at Olympic National Park. National Park Service, 2024. http://dx.doi.org/10.36967/2304991.

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This study explored spatial patterns of overflights at Olympic National Park (OLYM). Overflights were analyzed from July 27th, 2021 to January 2nd, 2023 using Automatic Dependent Surveillance-Broadcast (ADS-B) data with a total of 525 days of data. Data were collected using data loggers that were deployed at Blyn (located outside of OLYM), Hurricane Ridge, and Hoh Rain Forest. The first phase of analysis focused on all overflights and found a high concentration of overflights above the northeastern portion of OLYM, and definitive flight corridors were identified across the park. The second pha
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Johra, Hicham. Thermal properties of common building materials. Department of the Built Environment, Aalborg University, 2019. http://dx.doi.org/10.54337/aau294603722.

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The aim of this technical report is to provide a large collection of the main thermos-physical properties of various common construction materials and materials composing the elements inside the indoor environment of residential and office buildings. The Excel file enclosed with this document can be easily used to find thermal properties of materials for building energy and indoor environment simulation or to analyze experimental data. Note: A more recent version of that report and database are available at: https://vbn.aau.dk/en/publications/thermal-properties-of-building-materials-review-and
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Upadhyaya, Shrini K., Abraham Shaviv, Abraham Katzir, Itzhak Shmulevich, and David S. Slaughter. Development of A Real-Time, In-Situ Nitrate Sensor. United States Department of Agriculture, 2002. http://dx.doi.org/10.32747/2002.7586537.bard.

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Although nitrate fertilizers are critical for enhancing crop production, excess application of nitrate fertilizer can result in ground water contamination leading to the so called "nitrate problem". Health and environmental problems related to this "nitrate problem" have led to serious concerns in many parts of the world including the United States and Israel. These concerns have resulted in legislation limiting the amount of nitrate N in drinking water to 10mg/g. Development of a fast, reliable, nitrate sensor for in-situ application can be extremely useful in dynamic monitoring of environmen
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Villegas Aguilar, Julio Cesar, Marco Felipe Salas Orozco, Maria de los Angeles Moyaho Bernal, et al. Mechanical vibrations and increased alveolar bone density in animal models as an alternative to improve bone quality during orthodontic treatment: A systematic review. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2022. http://dx.doi.org/10.37766/inplasy2022.8.0103.

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Review question / Objective: The aim of this systematic review is to determine whether mechanical vibration increases alveolar bone density in animals models and their possible application during orthodontic treatment. In this sense, the focused question is: Is the increase in alveolar bone density by mechanical vibrations in animal models an alternative to improve bone quality during orthodontic treatment? Eligibility criteria: All published animal studies will be included. Animal studies where high or low frequency vibrations were be applied, Articles where density or osteogenesis were be me
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