Graph-Analytical Estimation Method of Natural Ventilation Efficiency during Natural Gas Combustion

Chebotarev, Victor I.; Pirozhnikova, A. P.; Koroleva, Alla V.

doi:10.4028/www.scientific.net/msf.931.901

Cited by 3 publications

(2 citation statements)

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“…The frequencies of collisions of molecules in a compressible air volume increase with increasing temperature and pressure in the CC. It is likely that the lowest frequencies of natural oscillations characteristic of the initial hydrocarbon molecules that have attached oxygen in the package -O-Obecome multiples or equal to the frequencies of collisions of air molecules at pressures and temperatures of compressed air in the upper dead center area, and it is this circumstance that causes the instantaneous decay of such hydrocarbon molecules into constituent elements and, as a consequence, their instantaneous combustion [58][59][60][61].…”

Section: Resultsmentioning

confidence: 99%

Physical and chemical processes of fuel change during ignition in diesel engine

Alatyrev

Kazakov

Vasiliev

et al. 2022

J. Phys.: Conf. Ser.

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The combustion of hydrocarbon fuels in the combustion chambers of diesel engines is preceded by processes of both physical and chemical transformations. The nature of the chemical transformations and their effect on the workflow are usually not taken into account. Meanwhile, their role in ensuring the efficiency of the workflow is very large. Chemical transformations in hydrocarbon fuels in combustion chambers cause the appearance of products capable of self-ignition under the influence of temperatures and pressures arising at the end of the compression stroke. The chain of these transformations ends with the formation of soot particles, the burning of which with abundant heat release in the form of radiant energy has a significant effect on the value of the indicator efficiency. The content and ways of influencing chemical transformations in fuel are considered, as well as the use of these transformations in increasing the combustion efficiency of fuels and increasing the indicator efficiency.

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Section: Resultsmentioning

confidence: 99%

Physical and chemical processes of fuel change during ignition in diesel engine

Alatyrev

Kazakov

Vasiliev

et al. 2022

J. Phys.: Conf. Ser.

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“…Knowing the energy potential based on microstructure and restructuring ability and other above parameters, we can establish a correlation with the oxidizing ability of the carbonaceous associations and predict its evolution during the chemical transformation of combustible and decomposing volumes. First of all, we will talk about the characteristics of coal associations formed during the thermal decomposition of DF, but as we consider individual characteristics, we will also consider data obtained by different researchers for other fuels, primarily natural gas and oxygenated fuels (ethanol, methanol, compounds based on vegetable oils) [7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Morphological properties and atomic crystal lattice of solid carbonaceous objects

Rossokhin¹,

Лопатин²,

Pushkarenko³

et al. 2022

J. Phys.: Conf. Ser.

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Diesel particulate matter (DPM) is an area of concern from an environmental point of view due to its functionality to settle in the respiratory channels when inhaled, cause inflammation in the respiratory tract, accumulate carcinogenic compounds, and adversely reflected the cardiovascular functions, thus causing excess mortality. DPM consists of an agglomeration of a numerous unions of preimages germ structures, spherical in the form of turbostratic carbon. Part of the DPM contains partially oxidized polyaromatic compounds C and H with a ring structure (PAH).

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Determination of the real energy efficiency of the inlet ventilation air heater and air curtain

Mozgova

Shennikova

2020

IOP Conf. Ser.: Mater. Sci. Eng.

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The energy efficiency of the heater depends on the U-value at certain energy costs. The article considers the calculation method for the heater performance efficiency in the inlet ventilation and air curtain of the garages for 100 and 75 motor vehicles of the largest industrial enterprise rendering transport services in transportation of loose cargoes, including ores and metal-containing products, large-sized and heavy cargoes, hazardous cargoes etc. The ventilation systems of the surveyed garages are combined with air heating. In order to determine the efficiency of the air handling units, the heat carrier flow through the heater, heat carrier temperature and the air temperature at the inlet and outlet of the air heater, the flow of heated air and the phase currents through the fan motor have been measured. Basing on the instrumental measurements carried out, the calculation results for the air heater thermal performance and the air consumption have been presented, and the determination method for the real U-value and the thermal efficiency of the examined heaters has been provided. Recommendations have also been made to improve their performance. This method is an important hands-on recommendation for the engineers serving air handling units and for the departments developing energy-saving activities for industrial enterprises.

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Graph-Analytical Estimation Method of Natural Ventilation Efficiency during Natural Gas Combustion

Cited by 3 publications

References 0 publications

Physical and chemical processes of fuel change during ignition in diesel engine

Physical and chemical processes of fuel change during ignition in diesel engine

Morphological properties and atomic crystal lattice of solid carbonaceous objects

Determination of the real energy efficiency of the inlet ventilation air heater and air curtain

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