Computer-aided simulation of fire-tube boiler emergency operation

Khaustov, S.A.; Belousova, Y. A.; Buvakov, Konstantin V.; Dolgih, A. Y.; Кулеш, Роман Николаевич

doi:10.1109/ifost.2016.7884318

Cited by 9 publications

(7 citation statements)

References 8 publications

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“…Calculation of radiant heat exchange was performed using the Discrete Ordinates radiation model. The validity of the selected mathematical models is confirmed by full-scale tests [1,2,6]. …”

Section: Results Of the Studymentioning

confidence: 97%

“…In the 21st century, the technology of virtual prototyping is increasingly used [3][4][5][6]. It allows to analyze all the mechanisms of production at the design stage, look inside the technical process, identify design errors, and make pre-operational evaluation of the efficiency with less labor.…”

Section: Introductionmentioning

confidence: 99%

“…The most authoritative and approved software product Ansys Multiphysics was adopted as the research tool [4][5][6]. …”

Section: Introductionmentioning

confidence: 99%

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Analysis of the construction of the high-temperature gas infrared radiator with the use of virtual prototyping

Khaustova

2017

MATEC Web Conf.

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Abstract. Method of virtual prototyping with the following mathematical modeling was used to simulate the heat-mass exchange and combustion during the operation of high-temperature gas infrared radiators, and to find optimal technical solutions for its design. The most authoritative and approved software product Ansys Multiphysics was used. The results of the mathematical modeling of heat and mass transfer in a turbulent reaction medium with combustion reproduce the experimental data produced by a measurement in real operating conditions of the gas-fired infrared heat emitter. The temperature distribution along the height of the ceramic nozzle was established. Obtained results enable estimation of the ignition and combustion zones.

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Section: Results Of the Studymentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

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Analysis of the construction of the high-temperature gas infrared radiator with the use of virtual prototyping

Khaustova

2017

MATEC Web Conf.

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“…One of the problems of thermal power plants is the contamination of heating surfaces that arises during the boiler unit operation [1]. Ash and slag accumulates on the heating surfaces and thereby prevents heat output.…”

Section: Formulation Of the Problemmentioning

confidence: 99%

Impact of the ash deposits from coal combustion on thermal conditions of the furnace pipes

et al. 2017

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Abstract.One of the problems of thermal power plants is the contamination of heating surfaces that arises during the boiler unit operation while combusting the solid fuel. The main part of the energy is consumed by pipes forming the furnace. Non-combustible mineral part of the fuel in the form of the ash and slag accumulates on the heating surfaces and thereby prevents heating of the working liquid. Therefore, boiler requires higher fuel consumption to maintain the operating conditions. Violation of the thermal conditions of heating surfaces in consequence of contamination causes the negative effects on metal pipes right up to failure. This problem is urgent due to the fact that information about the process of slagging and its effect on the thermal conditions of the heating surface operation enables the possibility to minimize the negative consequences. This possibility is achieved by adjusting the thermal conditions of the combustion process in the furnace with the periodic cleaning of the heating surfaces.

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“…The optimization of boiler operating conditions is task complex, which determine by most probable average load of boiler, operating time and characteristics of the auxiliary equipment [4][5][6][7]. The work purpose -the determination of thermodynamic efficiency increase ways for boiler plant with a gas-tube boiler.…”

Section: Introductionmentioning

confidence: 99%

Increasing the thermal efficiency of boiler plant

Uyanchinov

Razov

2017

MATEC Web Conf.

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Abstract. The thermal efficiency increase of boiler plant is actual task of scientific and technical researches. The optimization of boiler operating conditions is task complex, which determine by most probable average load of boiler, operating time and characteristics of the auxiliary equipment. The work purpose -the determination of thermodynamic efficiency increase ways for boiler plant with a gas-tube boiler. The tasks, solved at the research are the calculation of heat and fuel demand, the exergetic analysis of boilerhouse and heat network equipment, the determination of hydraulic losses and exergy losses due to restriction. The calculation was shown that the exergy destruction can be reduced by 2.39% due to excess air reducing to 10%; in addition the oxygen enrichment of air can be used that leads to reducing of the exergy destruction rate. The processes of carbon deposition from the side of flame and processes of scale formation on the water side leads to about 4.58% losses of fuel energy at gas-tube boiler. It was shown that the exergy losses may be reduced by 2.31% due to stack gases temperature reducing to 148 °C.

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Computer-aided simulation of fire-tube boiler emergency operation

Cited by 9 publications

References 8 publications

Analysis of the construction of the high-temperature gas infrared radiator with the use of virtual prototyping

Analysis of the construction of the high-temperature gas infrared radiator with the use of virtual prototyping

Impact of the ash deposits from coal combustion on thermal conditions of the furnace pipes

Increasing the thermal efficiency of boiler plant

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