Log in

Relevant bibliographies by topics / Incomplete combustion / Journal articles

Journal articles on the topic 'Incomplete combustion'

To see the other types of publications on this topic, follow the link: Incomplete combustion.

Author: Grafiati

Published: 4 June 2021

Last updated: 11 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Incomplete combustion.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Lee, Dae Hoon, Dae-Eun Park, Euisik Yoon, and Sejin Kwon. "A MEMS Piston-Cylinder Device Actuated by Combustion." Journal of Heat Transfer 125, no. 3 (May 20, 2003): 487–93. http://dx.doi.org/10.1115/1.1565095.

Full text

Abstract:

Combustion measurement in a cylindrical micro combustor, the construction procedure and test run of a MEMS reciprocating device are described. The sizing of the MEMS device was based on the findings of combustion measurements. Thermodynamic analysis of the pressure measurement resulted in available work up to 2.4 Joules in a combustor height of 2 mm and more with combustion efficiency of 0.6∼0.7. With combustor height less than 2 mm, combustion was incomplete due to excessive heat loss to the wall. In order to achieve the chamber height imposed by the combustion measurement, a fabrication process and wafer material that allow deeper etching was used.

APA, Harvard, Vancouver, ISO, and other styles

2

Kagan, L., and G. Sivashinsky. "Incomplete combustion in nonadiabatic premixed gas flames." Physical Review E 53, no. 6 (June 1, 1996): 6021–27. http://dx.doi.org/10.1103/physreve.53.6021.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Oluwoye, Ibukun, Mohammednoor Altarawneh, Jeff Gore, and Bogdan Z. Dlugogorski. "Products of incomplete combustion from biomass reburning." Fuel 274 (August 2020): 117805. http://dx.doi.org/10.1016/j.fuel.2020.117805.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Musaeva, D., and M. Eshmuhamedov. "THE MECHANISM OF THE CONVERSIONS OF THE PRODUCTS OF THE INCOMPLETE COMBUSTION ON POLIMETALL ADSORBTIONKATALISIS- CHEMOSORBCION SYSTEM." Technical science and innovation 2019, no. 2 (August 2, 2019): 76–83. http://dx.doi.org/10.51346/tstu-01.19.2.-77-0023.

Full text

Abstract:

In article is considered possibility of the catalytic conversion and chemosorption of the products of the incomplete combustion on actuated oxides alkaline, alkaline earth and amphoteric metal and metal with connecting valence sufficient as iron and manganese, bring about forming the join metal at peelings of the gas flow from products of the incomplete combustion. It is determined that in process chemosorption is formed join metal, which is accumulated in time sorption-catalytic system. The studied mechanism of the oxidation of the products of the incomplete combustion on oxides alkaline, alkaline earth, amphoteric metal and metal with connecting valence, as iron and manganese containing systems. Physics-chemical and spectral analysis is installed that, at xemosorbtion of the products of the incomplete combustion ion Mn4+, Mn3+ and Fe3+ moves over to undermost valence of the condition and form to salts. It is revealed that clear industrial gas surge from products of the incomplete combustion on easy porous have eaten metallic oxides with manganese by concoction is accompanied simultaneous increase being kept in him metal in the manner of metal of the organic join

APA, Harvard, Vancouver, ISO, and other styles

5

Chand, Dharmahinder Singh, Daamanjyot Barara, Gautam Ganesh, and Suraj Anand. "Comparison of Efficiency of Conventional Shaped Circular and Elliptical Shaped Combustor." MATEC Web of Conferences 151 (2018): 02002. http://dx.doi.org/10.1051/matecconf/201815102002.

Full text

Abstract:

There have been concerted efforts towards improving the fuel efficiency of the jet engines in the past, with an aim of reducing the incomplete combustion. The process of combustion in a jet engine takes place in the combustor. A study was conducted for enhancement of air-fuel mixing process by computational analysis of an elliptically shaped combustor for a gas turbine engine. The results of computational analysis of an elliptical shape combustor were compared with a circular shape combustor used in gas turbine engines with a identical cross sectional area. The comparison of the computationally derived parameters of the two combustors i.e. temperature, pressure, and velocity are studied and analyzed. The study intends towards the comparison of the combustion efficiencies of the circular and elliptically shaped combustors. The combustion efficency of elliptical chamber is found to be 98.72% at the same time it was observed 56.26% in case of circular type combustor.

APA, Harvard, Vancouver, ISO, and other styles

6

Castro, Zamir Sánchez, Hugo Reinel García Bernal, and Oscar Andrés Mendieta Menjura. "Efecto del precalentamiento del aire primario y la humedad del bagazo de caña de azúcar durante la combustión en lecho fijo." Corpoica Ciencia y Tecnología Agropecuaria 14, no. 1 (May 24, 2013): 5. http://dx.doi.org/10.21930/rcta.vol14_num1_art:263.

Full text

Abstract:

<p>Los hornos utilizados para la elaboración de panela presentan pérdidas energéticas debido a una combustión incompleta del bagazo de caña de azúcar y al calor sensible en los gases de chimenea. Durante el proceso de producción de panela, el bagazo de caña de azúcar se utiliza como combustible, con fracciones másicas de humedad entre 30% y 50%, las cuales afectan el rendimiento de la combustión de una biomasa en lecho fijo. Gracias a que el precalentamiento del aire disminuye el tiempo de secado, su implementación en muchos sistemas de combustión de biomasa ha incrementado la eficiencia del proceso. Por tanto, en la presente investigación se estudió la influencia del contenido de humedad y el precalentamiento del aire primario sobre la temperatura, la composición del gas y la tasa de combustión, mediante un diseño experimental factorial mixto 3x2. Los resultados demostraron que el aumento en la humedad del bagazo de caña reduce la tasa de combustión y la conversión de carbono a CO2, y por tanto, el rendimiento del proceso. Cuando se precalentó el aire primario hasta una temperatura de 120 ºC, la tasa de combustión aumentó, sin embargo sólo significó un incremento en el rendimiento de la combustión para una fracción másica de humedad de 30%.</p><p><strong>Effect of primary air preheating and moisture sugarcane bagasse during fixed bed combustion</strong></p><p>Furnaces used to making jaggery have energy losses due to incomplete combustion of sugarcane bagasse and sensible heat in the flue gases. During jaggery production process, sugarcane bagasse is used as fuel, with mass fractions of humidity between 30% and 50%, which affect the combustion efficiency of a biomass in a fixed bed. Because the air preheating decreases the drying time, its implementation in many biomass combustion systems increases process efficiency. Therefore, in this investigation we studied the influence of the moisture content and the preheating of the primary air on the combustion of bagasse in a fixed bed furnace, by analyzing the profiles of temperature and concentration of the combustion gas. Results showed that increasing in bagasse moisture reduces the rate of combustion and conversion of carbon to CO2, diminishing the yield of process. When the primary air is preheated to a temperature of 120 ºC, the combustion rate increased, however, only meant an increase in combustion efficiency to a mass fraction of 30% humidity.</p>

APA, Harvard, Vancouver, ISO, and other styles

7

Smith, Kirk R. "Incomplete Combustion: One of the World’s Biggest Killers." QScience Proceedings 2012, no. 3 (May 14, 2012): 4. http://dx.doi.org/10.5339/qproc.2012.mutagens.3.4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Mattson, Bruce, Trisha Hoette, and Michelle S. Applebee. "Incomplete Combustion of Hydrogen: Trapping a Reaction Intermediate." Journal of Chemical Education 84, no. 10 (October 2007): 1668. http://dx.doi.org/10.1021/ed084p1668.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Cudahy, James J., and Richard W. Helsel. "Removal of products of incomplete combustion with carbon." Waste Management 20, no. 5-6 (October 2000): 339–45. http://dx.doi.org/10.1016/s0956-053x(99)00335-9.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Vitz, Ed. "Paradoxes, Puzzles, and Pitfalls of Incomplete Combustion Demonstrations." Journal of Chemical Education 77, no. 8 (August 2000): 1011. http://dx.doi.org/10.1021/ed077p1011.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Kim, Jae Won, and Oh Joon Kwon. "Modeling of incomplete combustion in a scramjet engine." Aerospace Science and Technology 78 (July 2018): 397–402. http://dx.doi.org/10.1016/j.ast.2018.04.044.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Jung, No-El, Sun-Hwa Heo, Myeong-Ran Jo, Hyung-Chun Kim, Se-Kyung Jang, Ji-Hyung Hong, Jong-In Dong, and Sang-Bo Lee. "The Characterization of Incomplete Combustion Products in Open Burning." Journal of Korean Society for Atmospheric Environment 30, no. 1 (February 28, 2014): 48–58. http://dx.doi.org/10.5572/kosae.2014.30.1.048.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

BROUWER, J., J. P. LONGWELL, A. F. SAROFI, R. B. BARAT, and J. W. BOZZELLI. "Chlorocarbon-lnduced Incomplete Combustion In A Jet-Stirred Reactor." Combustion Science and Technology 85, no. 1-6 (September 1992): 87–100. http://dx.doi.org/10.1080/00102209208947161.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Sujatha, K., N. Pappa, K. Senthil Kumar, and U. Siddharth Nambi. "Monitoring Power Station Boilers Using ANN and Image Processing." Advanced Materials Research 631-632 (January 2013): 1154–59. http://dx.doi.org/10.4028/www.scientific.net/amr.631-632.1154.

Full text

Abstract:

This project deals with the monitoring the combustion quality of the power station boilers using Artificial Intelligence for improvement in the combustion quality in the power station boiler. The colour of the flame indicates whether the combustion taking place is complete, partial or incomplete. When complete combustion takes place the flue gases released are within the permissible limits otherwise its level is high which is out of limit. By analyzing the flame color which is captured using infrared camera and displayed on CCTV the quality of combustion is estimated. If combustion is partial or incomplete the flue gases released will create air pollution. So this work includes enhancement in the quality of combustion, saving of energy as well as check on the pollution level. The features are extracted from the flame images such as average intensity, area, brightness and orientation are obtained after preprocessing. Three classes of images corresponding to different burning conditions are taken from continuous video. Further training, testing and validation with the data collected have been carried out and performance of the various intelligent algorithms is presented.

APA, Harvard, Vancouver, ISO, and other styles

15

Xu, You Ning, Rui Ma, Yang Wang, Zhen Zhong Li, Yun Li, Xiu Li Zhang, and Yu Dong Fu. "An Experimental Study of Reduction NOx Emissions by Superfine Pulverized Coal Reburning." Applied Mechanics and Materials 321-324 (June 2013): 129–36. http://dx.doi.org/10.4028/www.scientific.net/amm.321-324.129.

Full text

Abstract:

An experimental study was conducted of reduction of NOx emissions by superfine pulverized coal reburning in Combustion Research Facility (CRF). Based on the systemically measured temperature distributions and analyzed gas samples, the influence of the attention was paid to the superfine pulverized coal reburning characteristic such as NOx emissions, slag formation conditions and mechanical incomplete combustion losses. Experimental results show that feeding pulverized coal for reburning has little influence on the furnace combustion center and slag formation. However, an increase in mechanical incomplete combustion losses was observed in the experiment. In addition, it was shown that the emission of NOx decreased obviously and the reduction efficiency was in excess of 60% with particle size of reburning fuel of 30.74 μm and the proportion of reburned fuel of 14.84%.

APA, Harvard, Vancouver, ISO, and other styles

16

Sung, Yonmo, Seungtae Kim, Byunghwa Jang, Changyong Oh, Taeyun Jee, Soonil Park, Kwansic Park, and Siyoul Chang. "Nitric Oxide Emission Reduction in Reheating Furnaces through Burner and Furnace Air-Staged Combustions." Energies 14, no. 6 (March 13, 2021): 1599. http://dx.doi.org/10.3390/en14061599.

Full text

Abstract:

In this study, a series of experiments were conducted on a testing facility and a real-scale furnace, for analyzing the nitric oxide (NO) emission reduction. The effects of the temperature, oxygen concentration, and amount of secondary combustion air were investigated in a single-burner combustion system. Additionally, the NO-reduction rate before and after combustion modifications in both the burner and furnace air-staged combustion were evaluated for a real-scale reheating furnace. The air-to-fuel equivalence ratio (λ) of individual combustion zones for the furnace was optimized for NO reduction without any incomplete combustion. The results indicated that the NO emission for controlling the λ of a single-zone decreased linearly with a decrease in the λ values in the individual firing tests (top-heat, bottom-heat, and bottom-soak zones). Moreover, the multi-zone control of the λ values for individual combustion zones was optimized at 1.13 (top-preheat), 1.0 (bottom-preheat), 1.0 (top-heat), 0.97 (bottom-heat), 1.0 (top-soak), and 0.97 (bottom-soak). In this firing condition, the modifications reduced the NO emissions by approximately 23%, as indicated by a comparison of the data obtained before and after the modifications. Thus, the combined application of burner and furnace air-staged combustions facilitated NO-emission reduction.

APA, Harvard, Vancouver, ISO, and other styles

17

Mailybaev, A. A. A., J. Bruining, and D. Marchesin. "Analytical Formulas for In-Situ Combustion." SPE Journal 16, no. 03 (February 23, 2011): 513–23. http://dx.doi.org/10.2118/129904-pa.

Full text

Abstract:

Summary There is a renewed interest in using combustion to recover medium- or high-viscosity oil. Despite numerous experimental, numerical, and analytical studies, the mechanisms for incomplete fuel combustion or oxygen consumption are not fully understood. Incomplete oxygen consumption may lead to low-temperature oxidation reactions downstream. This paper shows that these features emerge in a relatively simple 1D model, where air is injected in a porous medium filled with inert gas, water, and an oil mixture consisting of precoke, medium oil, and light oil. Precoke is a component that is dissolved in the oil but has essentially the same composition as coke. At high temperatures, precoke is converted to coke, which participates in high-temperature oxidation. At high temperatures, medium-oil components are cracked, releasing gaseous oil. Light-oil components and water are vaporized. The model possesses an analytical solution, which was obtained by a concept introduced by Zeldovich et al. (1985). This concept, which underlies most analytical approaches such as the reaction-sheet approximation and large-activation-energy asymptotics, entails that reaction can occur only in a very small temperature range because of the highly nonlinear nature of the Arrhenius factor. For a temperature below this range, the reaction rate is too slow, and for temperatures above this range, the reaction rate is so fast that either the fuel or oxygen concentrations become zero. The model results, in the absence of external heat losses, show that there are two combustion regimes in which coke or oxygen is partially consumed. In one regime, the reaction zone moves in front of the heat wave; whereas, in the other regime, the order of the waves is reversed. There are also two combustion regimes in which the coke and oxygen are completely consumed. Also, here the reaction zone can move in front of or at the back of the heat wave. Each combustion regime is described by a sequence of waves; we derive formulas for parameters in these waves. We analyze our formulas for typical in-situ-combustion data and compare the results with numerical simulation. The main conclusion is that mainly two key parameters (i.e., the injected oxygen mole fraction and the fuel concentration) determine the combustion-front structure and when either incomplete oxygen consumption or incomplete fuel consumption occurs in the high-temperature oxidation zone.

APA, Harvard, Vancouver, ISO, and other styles

18

Wenglarz, R. A., and R. G. Fox. "Physical Aspects of Deposition From Coal-Water Fuels Under Gas Turbine Conditions." Journal of Engineering for Gas Turbines and Power 112, no. 1 (January 1, 1990): 9–14. http://dx.doi.org/10.1115/1.2906484.

Full text

Abstract:

Deposition, erosion, and corrosion (DEC) experiments were conducted using three coal-water fuels (CWF) in a staged subscale turbine combustor operated at conditions of a recuperated turbine. This rich-quench-lean (RQL) combustor appears promising for reducing NOx levels to acceptable levels for future turbines operating with CWF. Specimens were exposed in two test sections to the combustion products from the RQL combustor. The gas and most surface temperatures in the first and second test sections represented temperatures in the first stators and rotors, respectively, of a recuperated turbine. The test results indicate deposition is affected substantially by gas temperature, surface temperature, and unburned carbon due to incomplete combustion. The high rates of deposition observed at first stator conditions showed the need for additional tests to identify CWF coals with lower deposition tendencies and to explore deposition control measures such as hot gas cleanup.

APA, Harvard, Vancouver, ISO, and other styles

19

Lou, Xiao, Wenjian Weng, Kui Cheng, Chenlu Song, Piyi Du, Ge Shen, and Gaorong Han. "The effects of incomplete combustion on Ba2Ti9O20 phase formation in a citrate solution combustion method." Ceramics International 35, no. 5 (July 2009): 1725–29. http://dx.doi.org/10.1016/j.ceramint.2008.09.013.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Adebona, B. E., R. C. Chawla, E. J. Martin, and J. W. Wheeler. "Organic products of incomplete combustion of colored bags and inks." Journal of Hazardous Materials 60, no. 1 (May 1998): 57–72. http://dx.doi.org/10.1016/s0304-3894(97)00155-6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Huffman, G. L., and L. J. Staley. "The formation of products of incomplete combustion in research combustors." Nuclear and Chemical Waste Management 7, no. 1 (1987): 29–32. http://dx.doi.org/10.1016/0191-815x(87)90039-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Roslyakov, P. V., K. A. Pleshanov, and I. L. Ionkin. "The optimal conditions for firing fuel with controlled incomplete combustion." Thermal Engineering 57, no. 4 (April 2010): 290–95. http://dx.doi.org/10.1134/s0040601510040038.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Tunik, Yu V. "Energy Efficiency of an Incomplete Thermodynamic Process with Detonation Combustion." Doklady Physics 65, no. 7 (July 2020): 258–60. http://dx.doi.org/10.1134/s1028335820070058.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Decimus, Almanese, Rodolphe Sonnier, Pascal Zavaleta, Sylvain Suard, and Laurent Ferry. "Study of gases released under incomplete combustion using PCFC–FTIR." Journal of Thermal Analysis and Calorimetry 138, no. 1 (March 9, 2019): 753–63. http://dx.doi.org/10.1007/s10973-019-08160-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Harry-Ngei, N., I. Ubong, and E. Ojong. "Emission Rate Estimation of Fuel Oil in A Combustion System Using Empirical Method." European Journal of Engineering Research and Science 4, no. 12 (December 1, 2019): 6–8. http://dx.doi.org/10.24018/ejers.2019.4.12.1574.

Full text

Abstract:

This work highlighted the prediction of the emission rates of the products of combustion using a fuel oil of specific gravity of 0.9. The two reaction pathways of complete combustion and incomplete combustion were used differently to ascertain the emission rates. Ultimate analysis were conducted on the fuel oil to show the percentage composition of elements using ASTM 3178 method for carbon and hydrogen, Kjedahl method for nitrogen, ASTM D1552 for sulphur and the differences used to compute that of oxygen. The estimated percentages of the various elements were the stoichiometrically used to compute the emissions rates at standard conditions. The basis of the computation was a fuel oil flow rate of 10Tonnes/h and the following emission rates were predicted for the complete combustion reaction pathway: 31,246Kg/h for CO2, 65Kg/h for H2O, 158Kg/h for NO2 and 20Kg/h for SO2 while 9,940Kg/h for CO2, 15,623Kg/h for CO, 11,700Kg/h for H2O, 11Kg/h for H2S and 158Kg/h for NO2 were predicted for the incomplete combustion pathway. The study noted that this predictive path should be taken where effective devices or logistics are not in place to measure emissions from combustion systems.

APA, Harvard, Vancouver, ISO, and other styles

26

Guo, Meng-fei, Zhen-bing Cai, Zu-chuan Zhang, and Min-hao Zhu. "Characterization and lubrication performance of diesel soot nanoparticles as oil lubricant additives." RSC Advances 5, no. 123 (2015): 101965–74. http://dx.doi.org/10.1039/c5ra19522e.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

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.

Full text

Abstract:

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 excess air coefficient using extremum method.That is αp=1.152596.

APA, Harvard, Vancouver, ISO, and other styles

28

Wang, Hong Tao, and Cang Su Xu. "Review of Laser Ignition for Methane-Air Mixtures." Applied Mechanics and Materials 727-728 (January 2015): 592–96. http://dx.doi.org/10.4028/www.scientific.net/amm.727-728.592.

Full text

Abstract:

Reducing vehicle pollutant emissions and fuel consumption is becoming more and more important challenges, while lean-burning are a promising development. However, lean-burning may leads to other problems including combustion instability and incomplete combustion. Recently, laser ignition system has become an attractive field of research in order to replace the conventional spark plug ignition systems in the internal combustion engines to solve problem above. Moreover, methane was regarded as very promising fuel. Therefore, the objective of this article is to review the ignition and combustion characteristics of methane-air mixtures by laser-induced ignition.

APA, Harvard, Vancouver, ISO, and other styles

29

Liang, Xiao Juan, and Xi Qin Li. "Research on Emissions of Benzene & Polycyclic Aromatic Hydrocarbons in Constant Volume Combustion Bomb." Advanced Materials Research 468-471 (February 2012): 2993–97. http://dx.doi.org/10.4028/www.scientific.net/amr.468-471.2993.

Full text

Abstract:

Polycyclic aromatic hydrocarbons are harmful to human body and environment. In order to know the formatting rules of benzene and polycyclic aromatic hydrocarbons in gasoline combustion process, a series of tests are done in a constant volume combustion bomb. The emissions of benzene and polycyclic aromatic hydrocarbons are measured by a gas chromatography-mass spectrometry analyzer. The test results show that the benzene in combustion products comes from the incomplete combustion fuel. The free radicals out of cracking fuel may also become benzene in combustion process. Adding ethanol in fuels does not necessarily increase the emission of benzene. Formation of polycyclic aromatic hydrocarbons varies with temperature.

APA, Harvard, Vancouver, ISO, and other styles

30

Sakai, Seigo, Ryo Abo, Kuniomi Araki, and Nobushige Amino. "B113 Pyrolysis of organic compounds using incomplete combustion on ceramics bed." Proceedings of the Thermal Engineering Conference 2009 (2009): 35–36. http://dx.doi.org/10.1299/jsmeted.2009.35.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Dragoescu, Claudia, and Sheldon Friedlander. "Dynamics of the Aerosol Products of Incomplete Combustion in Urban Atmospheres." Aerosol Science and Technology 10, no. 2 (January 1989): 249–57. http://dx.doi.org/10.1080/02786828908959262.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Lazarevic, Zorica, Gregor Krizan, Janez Krizan, Aleksandra Milutinovic, Martina Gilic, Izabela Kuryliszyn-Kudelska, and Nebojsa Romcevic. "Spectroscopic characterization of LiFePO4 as cathode material for Li-ion battery prepared in the pulse thermo-acoustic reactor." Science of Sintering 51, no. 3 (2019): 309–18. http://dx.doi.org/10.2298/sos1903309l.

Full text

Abstract:

Lithium iron phosphate (LiFePO4) is a cathode material for the rechargeable-lithium batteries. In this paper is presented a novel method of fabrication carbon-coated LiFePO4 in a pilot reactor built according to the principles of the thermo-acoustic burner of Helmholtz-type. Crystalline powder with a high percentage of LiFePO4 was synthesized by incomplete combustion, i.e. in the reductive atmosphere, and calcined at 700?C for 6 h. The obtained samples were characterized by X-ray diffraction, IR and Raman spectroscopy. The aim of this study was to demonstrate the production of the high-quality lithium-ion cathode material by the incomplete combustion. The synthesis of LiFePO4 is completed during calcination and an ordered structure is attained. Fast synthesis in the reactor (less than 2 s) is achieved due to the reduction in the size of reactant's particles and a huge number of collisions owing to their strong turbulent flow associated with explosive combustion.

APA, Harvard, Vancouver, ISO, and other styles

33

Chen, Zhi Guang, Chao Kui Qin, Yang Jun Zhan, and Ju Qiu. "Analysis of Chinese Natural Gas Interchangeability Predicted by Weaver Indices." Advanced Materials Research 724-725 (August 2013): 1017–20. http://dx.doi.org/10.4028/www.scientific.net/amr.724-725.1017.

Full text

Abstract:

Many cities in China are being supplied with natural gases from different sources including PNGs (Pipeline Natural Gas) and LNG (Liquefied Natural Gas), critical attention should be paid to natural gas interchangeability problems. In this paper, the applicability of Weaver Indices for Chinese natural gas interchangeability prediction has been discussed. Experiment with 17 sets of domestic gas appliances and 11 natural gases about 187 test conditions has been done to analyze the interchangeability. It can conclude from experiment results that some sources of natural gas cannot be interchangeable, and Weaver Indices isnt totally suitable to predict lifting and incomplete combustion performance for Chinese natural gas interchangeability. It suggests the limits of Incomplete Combustion JI should be changed into JI0.04 and Lifting JL to JL0.95.

APA, Harvard, Vancouver, ISO, and other styles

34

Qi, Jun Xiong. "Research and Improvement on Calculation Method of Optimal Excess Air Ratio." Applied Mechanics and Materials 536-537 (April 2014): 1583–86. http://dx.doi.org/10.4028/www.scientific.net/amm.536-537.1583.

Full text

Abstract:

By analyzing the relations of the excess air ratio to heat loss due to exhaust gas, chemical incomplete combustion and combustibles in refuse, the traditional method for solving the optimal excess air ratio is improved. A correction factor is proposed for heat loss due to combustibles in refuse, making the solving method more accurate, which is of great importance for improving the combustion efficiency of the boiler.

APA, Harvard, Vancouver, ISO, and other styles

35

Yarmolchick, Yu Р., R. Schröger, H. Haberfelner, M. Pichler, D. Kostić, and G. V. Moroz. "Combined Combustion of Various Industrial Waste Flows in Boiler Furnaces. Part 1." ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations 63, no. 3 (May 28, 2020): 236–52. http://dx.doi.org/10.21122/1029-7448-2020-63-3-236-252.

Full text

Abstract:

Direct flaring of industrial waste flows specifically in the combustion chambers of heat generating plants makes it possible to significantly reduce the loss of thermal energy, as well as the capital costs of equipping thermal units without using of preliminary furnaces. However, given the increasingly strict environmental standards for the burning of various fuels, it seems important to determine the optimal combustion conditions depending on the composition of the waste products. The article shows that only a complex solution can be a successful solution to the problem of organizing high-quality combustion of industrial waste flows. On the one hand, it is necessary to obtain extremely environmentally friendly combustion products, and, on the other hand, the waste disposal process should be energy efficient. The article discusses the stages of the implementation of the projects of energy-efficient utilization of industrial waste in compliance with the established environmental standards for emissions of pollutants. The analysis of initial combustible chemical substances that are part of solid, liquid and gaseous wastes of industrial technologies is given. The main classes of fuels that determine combustion reactions are identified. Global chemical reactions and oxidation mechanisms are considered. The combustible properties, chemical composition, and degree of impact of the products of combustion of industrial waste on the environment are determined, depending on the content of various starting substances. The most difficult aspect of the flaming disposal of industrial waste flows is the presence of harmful substances of various hazard classes. The conditions for achieving complete fuel combustion, stoichiometry, and equilibrium conditions for different air/fuel ratios (depending on fuel composition) with incomplete combustion are determined. The analysis of products of incomplete combustion is given as well as of and hazard classes of the corresponding pollutants. The maximum value of the coefficient φ was determined beyond which solid carbon should be formed in a homogeneous mixture.

APA, Harvard, Vancouver, ISO, and other styles

36

Zhu, Denghao, Jun Deng, Jinqiu Wang, Shuo Wang, Hongyu Zhang, Jakob Andert, and Liguang Li. "Development and Application of Ion Current/Cylinder Pressure Cooperative Combustion Diagnosis and Control System." Energies 13, no. 21 (October 29, 2020): 5656. http://dx.doi.org/10.3390/en13215656.

Full text

Abstract:

The application of advanced technologies for engine efficiency improvement and emissions reduction also increase the occurrence possibility of abnormal combustions such as incomplete combustion, misfire, knock or pre-ignition. Novel promising combustion modes, which are basically dominated by chemical reaction kinetics show a major difficulty in combustion control. The challenge in precise combustion control is hard to overcome by the traditional engine map-based control method because it cannot monitor the combustion state of each cycle, hence, real-time cycle-resolved in-cylinder combustion diagnosis and control are required. In the past, cylinder pressure and ion current sensors, as the two most commonly used sensors for in-cylinder combustion diagnosis and control, have enjoyed a seemingly competitive relationship, so all related researches only use one of the sensors. However, these two sensors have their own unique features. In this study, the idea is to combine the information obtained from both sensors. At first, two kinds of ion current detection system are comprehensively introduced and compared at the hardware level and signal level. The most promising variant (the DC-Power ion current detection system) is selected for the subsequent experiments. Then, the concept of ion current/cylinder pressure cooperative combustion diagnosis and control system is illustrated and implemented on the engine prototyping control unit. One application case of employing this system for homogenous charge compression ignition abnormal combustion control and its stability improvement is introduced. The results show that a combination of ion current and cylinder pressure signals can provide richer and also necessary information for combustion control. Finally, ion current and cylinder pressure signals are employed as inputs of artificial neural network (ANN) models for combustion prediction. The results show that the combustion prediction performance is better when the inputs are a combination of both signals, instead of using only one of them. This offline analysis proves the feasibility of using an ANN-based model whose inputs are a combination of ion current and pressure signals for better prediction accuracy.

APA, Harvard, Vancouver, ISO, and other styles

37

Meng, Ling Ju, Zhao Kun Xuan, and Jin Yu Liu. "Analysis of the Relationship between Desulfurization Treatment and Green Chemistry of Coal." Advanced Materials Research 998-999 (July 2014): 23–26. http://dx.doi.org/10.4028/www.scientific.net/amr.998-999.23.

Full text

Abstract:

The coal industry belongs to the energy industry of the mainstream, the use of coal in a wide range, the main applications of combustion. However, the coal contains large amounts of sulfur, in combustion process, encountered the incomplete combustion will produce large amounts of sulfur dioxide, serious impact on the natural environment. The coal desulfurization technology can largely reduce this pollution, green chemistry is in the desulfurization technology is established on the basis of a concept. This article focuses on the discussion about coal desulfurization and its relationship to green chemistry.

APA, Harvard, Vancouver, ISO, and other styles

38

Siebers, D. L., and T. M. Dyer. "The Autoignition and Combustion of Coal-Water Slurry Under Simulated Diesel Engine Conditions." Journal of Engineering for Gas Turbines and Power 108, no. 4 (October 1, 1986): 654–60. http://dx.doi.org/10.1115/1.3239961.

Full text

Abstract:

The combustion characteristics of a coal-water slurry spray were examined under diesel engine conditions. A two-stage combustion process was used to simulate the diesel engine conditions in a constant-volume combustion bomb. The combustion characteristics investigated were ignition delay, ignition site, combustion development, combustion duration, and combustion completeness. The results show that the ignition delay of the coal-water slurry fuel is temperature and pressure dependent. Also, the coal slurry ignition delay is approximately a factor of five longer and the energy release rate is significantly slower in comparison to the ignition delay and energy release rate for conventional No. 2 diesel fuel. The combustion of the slurry spray was incomplete for all test conditions due to the impingement and the adherence of the coal slurry on the wall. This fundamental testing provides insight into engine design parameters which must be considered if coal-water slurry is to be used in practice.

APA, Harvard, Vancouver, ISO, and other styles

39

Cheng, Zhihai, Yang Li, and Zhonghan Zhang. "Numerical simulation study on the influence of pulverized coal particle size on boiler combustion characteristics." E3S Web of Conferences 218 (2020): 01009. http://dx.doi.org/10.1051/e3sconf/202021801009.

Full text

Abstract:

The influence of pulverized coal particle size on combustion and NOx formation of 660MW tangential combustion ultra-supercritical boiler in a power plant was studied by using commercial software FLUENT. The average particle size of pulverized coal was set at 61μm, 71μm and 80μm, respectively. The results show that with the decrease of pulverized coal particle size, the overall temperature level of the boiler increases, the average temperature of the main combustion zone increases, the temperature of the upper part of the main combustion zone decreases, and the combustion of pulverized coal is more incomplete. However, the probability of particles sticking to the wall and the probability of coking and slagging of the boiler increases. The amount of NOx produced in the main combustion zone decreases, while the amount of NOx produced in the upper part of the main combustion zone increases, while the overall amount of NOx produced increases slightly.

APA, Harvard, Vancouver, ISO, and other styles

40

Ma, Peng, Hui Li Liu, and Sheng Yong Liu. "Development of Straw Briquette Boiler." Advanced Materials Research 608-609 (December 2012): 339–43. http://dx.doi.org/10.4028/www.scientific.net/amr.608-609.339.

Full text

Abstract:

According to the specialty of straw briquette combustion, thermodynamic calculating and special processing methods, the special boiler which applies to cornstalk briquettes is designed and made. It has double fire grates which have function of smoke removing. Moreover, the combustion efficiency of this boiler is higher and the incomplete combustion loss of solid and gas is less. The contents of fume, nitrogen oxide and sulfur dioxide in the vent smoke are low enough to accords with national standard requirement. So it will have a splendid future to use straw as the substitute of coal in our country.

APA, Harvard, Vancouver, ISO, and other styles

41

Gruhlke, Pascal, Christian Beck, Bertram Janus, and Andreas M. Kempf. "LES Analysis of CO Emissions from a High Pressure Siemens Gas Turbine Prototype Combustor at Part Load." Energies 13, no. 21 (November 3, 2020): 5751. http://dx.doi.org/10.3390/en13215751.

Full text

Abstract:

This work contributes to the understanding of mechanisms that lead to increased carbon monoxide (CO) concentrations in gas turbine combustion systems. Large-eddy simulations (LES) of a full scale high pressure prototype Siemens gas turbine combustor at three staged part load operating conditions are presented, demonstrating the ability to predict carbon monoxide pollutants from a complex technical system by investigating sources of incomplete CO oxidation. Analytically reduced chemistry is applied for the accurate pollutant prediction together with the dynamic thickened flame model. LES results show that carbon monoxide emissions at the probe location are predicted in good agreement with the available test data, indicating two operating points with moderate pollutant levels and one operating point with CO concentrations below 10 ppm. Large mixture inhomogeneities are identified in the combustion chamber for all operating points. The investigation of mixture formation indicates that fuel-rich mixtures mainly emerge from the pilot stage resulting in high equivalence ratio streaks that lead to large CO levels at the combustor outlet. Flame quenching due to flame-wall-interaction are found to be of no relevance for CO in the investigated combustion chamber. Post-processing with Lagrangian tracer particles shows that cold air—from effusion cooling or stages that are not being supplied with fuel—lead to significant flame quenching, as mixtures are shifted to leaner equivalence ratios and the oxidation of CO is inhibited.

APA, Harvard, Vancouver, ISO, and other styles

42

Jeong, Gijeong, and Kyubok Ahn. "One-Dimensional Analysis of Double Annular Combustor for Reducing Harmful Emissions." Energies 14, no. 13 (June 30, 2021): 3930. http://dx.doi.org/10.3390/en14133930.

Full text

Abstract:

The number of aircraft flights worldwide has increased steadily since the introduction of air transportation to the public. Accordingly, environmental issues caused by the exhaust gases of aircraft engines have emerged. In particular, international organizations have crafted emission regulations since gases exhausted during takeoff and landing have been identified as the direct cause of air pollution near airports. Nitrogen oxides (NOx) produced at high combustion temperatures and carbon monoxide (CO) due to incomplete combustion affect the performance of the combustion chamber. Therefore, annular combustors comprising two annular zones have been developed to reduce the emissions of these two substances, which occur under different conditions. Parameters that should be considered when modifying a conventional single annular (SAC) to a double annular combustor (DAC) are discussed herein. In this paper, an optimization algorithm for obtaining the main design parameters of the DAC is presented to minimize NOx and CO emissions and an operation solution for reducing carbon monoxide emission is identified. A thermodynamic model of a high-bypass turbofan engine (PS-90A) is used to establish the inlet and outlet conditions of the combustor. Analysis results show that NOx emissions can be effectively reduced by adjusting the design parameters and CO emissions can be significantly decreased by partially turning off the fuel supply based on the engine cycle.

APA, Harvard, Vancouver, ISO, and other styles

43

Sislian, J. P., R. Dudebout, J. Schumacher, M. Islam, and T. Redford. "Incomplete Mixing and Off-Design Effects on Shock-Induced Combustion Ramjet Performance." Journal of Propulsion and Power 16, no. 1 (January 2000): 41–48. http://dx.doi.org/10.2514/2.5529.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Marynowski, Leszek, Rafał Kubik, Dieter Uhl, and Bernd R. T. Simoneit. "Molecular composition of fossil charcoal and relationship with incomplete combustion of wood." Organic Geochemistry 77 (December 2014): 22–31. http://dx.doi.org/10.1016/j.orggeochem.2014.09.003.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Simoneit, Bernd R. T. "Biomass burning — a review of organic tracers for smoke from incomplete combustion." Applied Geochemistry 17, no. 3 (March 2002): 129–62. http://dx.doi.org/10.1016/s0883-2927(01)00061-0.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Johnson, Larry D., M. Rodney Midgett, Ruby H. James, Michael M. Thomason, and M. Lisa Manier. "Screening Approach for Principal Organic Hazardous Constituents and Products of Incomplete Combustion." JAPCA 39, no. 5 (May 1989): 709–13. http://dx.doi.org/10.1080/08940630.1989.10466557.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Fuerst, Robert G., Thomas J. Logan, M. Rodney Midgett, Alston L. Sykes, Thomas Buedel, Joan Bursey, and James B. Homolya. "Sampling and Analysis Experiments for Improved Characterization of Products of Incomplete Combustion." JAPCA 39, no. 7 (July 1989): 969–74. http://dx.doi.org/10.1080/08940630.1989.10466584.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Horikawa, K., R. Nakagawa, and H. Tokiwa. "Identification of mutagens in incomplete combustion products of liquefied petroleum gas (LPG)." Mutation Research/Environmental Mutagenesis and Related Subjects 164, no. 4 (August 1986): 268. http://dx.doi.org/10.1016/0165-1161(86)90073-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Xu, Bin, Yi Cheng, and Jian Wu. "The Analysis about Harmful Emissions of Micro Combustor Based on Porous Medium." Advanced Materials Research 838-841 (November 2013): 2481–87. http://dx.doi.org/10.4028/www.scientific.net/amr.838-841.2481.

Full text

Abstract:

According to the changes of the mixed gas flux ,porosity and burner structure,we measured the contents of CO, HC and Nitrogen Oxides in the harmful emissions of the methane burned in the micro combustor.In the micro scale, because the structure size of the burner is small, the combustion space and time is limited, CO and HC emissions are the products of incomplete combustion, nitrogen oxide are the products in local high temperature and oxygen enriched conditions.

APA, Harvard, Vancouver, ISO, and other styles

50

Jančauskas, Adolfas, and Kęstutis Buinevičius. "Combination of Primary Measures on Flue Gas Emissions in Grate-Firing Biofuel Boiler." Energies 14, no. 4 (February 3, 2021): 793. http://dx.doi.org/10.3390/en14040793.

Full text

Abstract:

Increasingly stringent limits for NOx and SO2 emission are forcing the investigation of new reduction methods. This study was conducted to determine the combination of primary measures, i.e., flue gas recirculation (FGR) and excess air effects on sulfur, nitrogen and hydrocarbon emissions, in boiler flue gas. Experimental research was performed using an experimental, small-scale (20 kW) model of an industrial biofuel boiler. During combustion of sunflower seed hulls at different FGR ratios and incomplete combustion regimes, the composition of flue gas (NO, NO2, N2O, HCN, NH3, SO2, SO3, H2S, CO, and CxHy) was compared, allowing an explanation of the determinants of emission concentration changes to be provided. Increasing the flue gas recirculation ratio in the primary air had a positive effect on reducing NOX and CO with certain organic compounds. However, an opposite effect on SO2 was observed. NOX and SO2 concentrations were found to be approximately 500 mg/m3 and 150 mg/m3 under a regular combustion regime. When the FGR ratio of 50% NOX concentration decreased by 110 mg/m3, the SO2 concentration increased by 60 mg/m3. The incomplete combustion regime reduced NOX concentration by 70 mg/m3, whereas SO2 concentration increased by 100 mg/m3. The influence of primary measures presented an unclear relationship to hydrocarbon emissions, with concentrations not exceeding 18 mg/m3.

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!