Effect of a condensation utilizer on the operation of steam and hot-water gas-fired boilers

Ionkin, I. L.; Рагуткин, А. В.; Roslyakov, P. V.; Supranov, V. M.; Zaichenko, M. N.; Luning, B.

doi:10.1134/s0040601515050031

Cited by 9 publications

(2 citation statements)

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“…At the irrigated surface heat exchanger installation according scheme C, as experimental investigations showed, determinative factors do not influence on transfer coefficient of full heat for nozzle chamber s. For this scheme for total interval of factors varying altitude sis between 70-75 kg/(m 2 • h) (Ionkin et al, 2015;Izyumov & Supranov, 2010).…”

mentioning

confidence: 86%

The Contact-Surface Heat Utilizer

Voznyak¹,

Yurkevych²,

Kasynets³

et al. 2020

Theory build. pract.

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In industry contact-surface heat exchangers are used. Deep chilling of burning products is realised in these apparatuses (30-40 o C). At calculation of contact-surface heat exchangers the transfer coefficient of full heat for nozzle chamber s against of determinative factors both for contact part and for irrigated surface heat exchangeris the most important. It may be obtained by several methods. By this there is difficulty at choice of the most effective method, which would provide high accuracy of this value calculation and also would not be too complicated. The aim of this article is choice of the most rational schemes of heat utilization equipment composition for the endogas burning products heat utilization and design of engineering method of this equipment calculation. The dependencies obtained are quite simple, easy to use and give good consistency of the results. An effective method of determination of the full heat transfer coefficient for nozzle chamber in contact heat exchangers at any given output values at the specified interval, which makes it possible to conduct calculations both graphically and analytically, is proposed. In this article there is proposed method of value s calculation for contact-surface heat exchangers, which corresponds both conditions described above. Method of numeral integration is chosen as a base. It allows to calculate an value s with the highest accuracy. Value sis presented as function against 4 independent arguments. Obtained results are presented as a chart, which is approximated by an equation. Thus, we assert that effective method for calculation of the transfer coefficient of full heat for nozzle chamber in contact-surface heat exchangers, which are used for common and technological hot-water supply, is composed.

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confidence: 86%

The Contact-Surface Heat Utilizer

Voznyak¹,

Yurkevych²,

Kasynets³

et al. 2020

Theory build. pract.

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“…The condition for the long-term operation of external gas ducts and chimneys is to ensure a thermal regime in the cold season without the appearance of condensation on the internal surfaces of the gas ducts. To do this, it is necessary to ensure that the surface temperature of the external gas duct and chimney tcm rises above the dew point td [3][4][5][6]. First of all, at the head of the chimney, that is t h.ch.…”

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confidence: 99%

Studying on thermal processes during the motion of combustion products in the gas chimneys of the heat power plant

Anarbaev

Kodirov²,

Khushiev³

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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This article discusses the new in Uzbekistan heat recovery technology is leaving the flue gas from boilers. This is achieved by condensation of water vapor therein. An analysis of the advantages and disadvantages of contact heat recovery and surface types. The analysis of the heat transfer coefficients in the condensing heat exchanger surface. The temperature regimes which provide point of the flue gas dew point. The limited stresses in the chimney of the boiler unit are calculated using condensing heat utilizers of the exhaust gas for stations of Uzbekistan.

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Preheating Boiler Blast Air with Exhaust Gases in Cooling Them Below the Dew Point

Ziganshina

Kudinov

2019

J Eng Phys Thermophy

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Effect of a condensation utilizer on the operation of steam and hot-water gas-fired boilers

Cited by 9 publications

References 0 publications

The Contact-Surface Heat Utilizer

The Contact-Surface Heat Utilizer

Studying on thermal processes during the motion of combustion products in the gas chimneys of the heat power plant

Preheating Boiler Blast Air with Exhaust Gases in Cooling Them Below the Dew Point

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