scholarly journals Impact of a Synthetic Component on the Emission of Volatile Organic Compounds during the Combustion Process in a Miniature Turbine Engine

Energies ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 8462
Author(s):  
Bartosz Gawron ◽  
Aleksander Górniak ◽  
Tomasz Białecki ◽  
Anna Janicka ◽  
Radosław Włostowski ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Combustion Process ◽  
Engine Performance ◽  
Turbine Engine ◽  
Synthetic Component ◽  
Volatile Organic ◽  
Alternative Power ◽  
Volatile Organic Compound Emissions ◽  
Aviation Engines

This paper refers to the study of biofuel as an alternative power source for turbine aviation engines. Blends of Jet A-1 fuel and synthesized hydrocarbons from Hydrotreated Esters and Fatty Acids (HEFA) technology at different proportions, such as 25%, 50% and 75%, were used for tests. All the test results were compared with the neat Jet A-1 fuel. A miniature GTM series turbojet engine was used in the test rig studies. During the tests conducted at a specific rotational speed, selected engine operating parameters as well as the emission of volatile organic compounds were measured. In terms of engine performance, no significant differences were found between the test fuels. The results of volatile organic compound emissions indicate that among the most toxic compounds the highest concentrations were obtained for benzene. The addition of the HEFA synthetic component and increasing its proportion in the blend resulted in the obtained concentration values for benzene showing a decreasing trend. The plotted utility profile indicates that the most optimal blend, i.e., the least toxic, is the blend with the share (v/v) of 62.5% of Jet A-1 fuel and 37.5% of HEFA component.

Distribution of volatile organic compounds during the combustion process in coal-fired power stations

2001 ◽  
Vol 35 (33) ◽  
pp. 5823-5831 ◽  
Author(s):  
G Fernández-Martı́nez ◽  
P López-Mahı́a ◽  
S Muniategui-Lorenzo ◽  
D Prada-Rodrı́guez ◽  
E Fernández-Fernández
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Combustion Process ◽  
Power Stations ◽  
Volatile Organic

Gas Turbine Engine Emissions—Part I: Volatile Organic Compounds and Nitrogen Oxides

2010 ◽  
Vol 132 (6) ◽  
Author(s):  
Michael T. Timko ◽  
Scott C. Herndon ◽  
Ezra C. Wood ◽  
Timothy B. Onasch ◽  
Megan J. Northway ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Gas Turbine ◽  
Gas Phase ◽  
Organic Compounds ◽  
Flow Rate ◽  
Fuel Flow Rate ◽  
Engine Emissions ◽  
Turbine Engine ◽  
Fuel Flow ◽  
Volatile Organic

The potential human health and environmental impacts of aircraft gas turbine engine emissions during normal airport operation are issues of growing concern. During the JETS/Aircraft Particle Emissions eXperiment(APEX)-2 and APEX-3 field campaigns, we performed an extensive series of gas phase and particulate emissions measurements of on-wing gas turbine engines. In all, nine different CFM56 style engines (including both CFM56-3B1 and -7B22 models) and seven additional engines (two RB211-535E4-B engines, three AE3007 engines, one PW4158, and one CJ6108A) were studied to evaluate engine-to-engine variability. Specific gas-phase measurements include NO2, NO, and total NOx, HCHO, C2H4, CO, and a range of volatile organic compounds (e.g., benzene, styrene, toluene, naphthalene). A number of broad conclusions can be made based on the gas-phase data set: (1) field measurements of gas-phase emission indices (EIs) are generally consistent with ICAO certification values; (2) speciation of gas phase NOx between NO and NO2 is reproducible for different engine types and favors NO2 at low power (and low fuel flow rate) and NO at high power (high fuel flow rate); (3) emission indices of gas-phase organic compounds and CO decrease rapidly with increasing fuel flow rate; (4) plotting EI-CO or volatile organic compound EIs against fuel flow rate collapses much of the variability between the different engines, with one exception (AE3007); (5) HCHO, ethylene, acetaldehyde, and propene are the most abundant volatile organic compounds present in the exhaust gases that we can detect, independent of engine technology differences. Empirical correlations accurate to within 30% and based on the publicly available engine parameters are presented for estimating EI-NOx and EI-NO2. Engine-to-engine variability, unavailability of combustor input conditions, changing ambient temperatures, and complex reaction dynamics limit the accuracy of global correlations for CO or volatile organic compound EIs.

scholarly journals Emission of volatile organic compounds during combustion process in a miniature turbojet engine

2018 ◽  
Vol 44 (4) ◽  
Author(s):  
Anna Barbara Janicka ◽  
Maciej Zawiślak ◽  
Bartosz Gawron ◽  
Aleksander Górniak ◽  
Tomasz Białecki
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Combustion Process ◽  
Turbojet Engine ◽  
Volatile Organic

Chemical Vapour Deposition (CVD) Technique for Abatement of Volatile Organic Compounds (VOCs)

2020 ◽  
Vol 71 (7) ◽  
pp. 97-113
Author(s):  
Marius Stoian ◽  
Liliana Lazar ◽  
Florent Uny ◽  
Frederic Sanchette ◽  
Ioana Fechete
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Chemical Vapour Deposition ◽  
Noble Metals ◽  
Vapour Deposition ◽  
Active Material ◽  
Combustion Process ◽  
Chemical Vapour ◽  
Morphological Properties ◽  
Volatile Organic

Chemical vapour deposition (CVD) is an important technique that uses volatile precursors to produce thin film deposits on an exposed substrate, having the capability to generate different types of nanostructures (e.g. nanoparticles, nanotubes, nanofibers or nanocomposites) as catalytic materials. The environmental hazard of volatile organic compounds (VOCs) requires efficient methods to reduce their emission into the atmosphere, due to their high potential to cause severe health issues, along with their extended spread in the environment. Catalytic combustion proves to be one of the most effective means for the abatement of VOCs, employing different catalysts, such as noble metals or non-noble metal oxides, to facilitate the oxidation process of the pollutants. These catalysts can be prepared through various methods as multiple steps wet processes or CVD techniques, indicating the superiority of the CVD-prepared catalysts compared to those prepared using the former type of process, due to the ability to achieve high dispersion of the active material, together with enhanced textural and morphological properties. This paper aims to present the various CVD techniques employed in the fabrication of different catalysts with the possibility of generating materials at nano-scale for use in numerous reactions, mostly in combustion process for VOCs decomposition.

The Evaluation of Specific Environmental and Degradation Characteristics of Surface Treated Wood

2015 ◽  
Vol 818 ◽  
pp. 185-189
Author(s):  
Eva Ružinská ◽  
Vladimír Hagara ◽  
Peter Jakúbek ◽  
Krzysztof Krajewski
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Quantitative Evaluation ◽  
Fire Protection ◽  
Combustion Process ◽  
Treated Wood ◽  
Quality Characteristics ◽  
Environmental Characteristics ◽  
Decomposition Products ◽  
Volatile Organic

The paper deals with the design of quantitative evaluation resulting from the decomposition products of surface-treated wood in the combustion process. This proposal evaluation in addition to monitoring the quality characteristics of the surfactant treated wood will add information on fire protection and selected environmental characteristics (emission of volatile organic compounds).

scholarly journals Determination of volatile organic compounds in the crude and heat treated amaranth samples

2008 ◽  
Vol 52 (No. 3) ◽  
pp. 111-120 ◽  
Author(s):  
M. Ciganek ◽  
B. Pisarikova ◽  
Z. Zraly
Keyword(s):  
Heat Treatment ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Heat Treated ◽  
Volatile Organic ◽  
Volatile Organic Compound Emissions ◽  
Total Concentrations

The present study concentrated on the development of an analytical method for determination of emissions of volatile organic compounds from crude and heat treated amaranth (genus <i>Amaranthus</i> L.) samples. Emitted substances were collected by solid-phase microextraction (SPME) method and identified by gas chromatography with mass spectrometry. The list of identified abundant organic compounds exceeds one hundred substances of different classes. Total concentrations of quantified volatile organic compounds ranged between 2.2 and 68.9 &mu;g/g of dried sample. Hexanal and acetic acid were found as the most abundant compounds detected in amaranth samples. It was found that heat treatment (popping) of amaranth samples changed their composition of volatile organic compounds dramatically. The highest volatile organic compound emissions were found in popped grain amaranth in comparison to all crude grains and amaranth biomasses.

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