scholarly journals Superheater deposits and corrosion in temperature gradient – Laboratory studies into effects of flue gas composition, initial deposit structure, and exposure time

Energy ◽  
2021 ◽  
pp. 120494
Author(s):  
Jonne Niemi ◽  
Markus Engblom ◽  
Tor Laurén ◽  
Patrik Yrjas ◽  
Juho Lehmusto ◽  
...  
Keyword(s):  
Temperature Gradient ◽  
Exposure Time ◽  
Flue Gas ◽  
Gas Composition ◽  
Laboratory Studies ◽  
Deposit Structure ◽  
Initial Deposit

scholarly journals Limestone in flue gas desulphurization in oxygen-enriched atmospheres - Part I: The effect of CO2 on limestone calcination

2012 ◽  
Vol 33 (2) ◽  
pp. 255-262 ◽  
Author(s):  
Angelika Kochel ◽  
Aleksandra Cieplińska ◽  
Arkadiusz Szymanek
Keyword(s):  
Flue Gas ◽  
Physicochemical Analysis ◽  
Gas Composition ◽  
Limestone Calcination ◽  
Flue Gas Desulphurization

Limestone in flue gas desulphurization in oxygen-enriched atmospheres - Part I: The effect of CO2 on limestone calcination The article describes the testing of four selected samples of limestone originating from four commercially exploited deposits. The tests of sorbents included a physicochemical analysis and calcination in different atmospheres. The main aim of the tests was to determine the possibilities for using limestone during combustion in oxygen-enriched atmospheres. Tests in a synthetic flue gas composition make it possible to assess the possibility of CaCO3 decomposition in atmospheres with an increased CO2 concentration.

Colour changing material for the estimation of flue gas radiation on the miniature gas turbine surface

2021 ◽  
pp. 146442072110455
Author(s):  
Mahalingam Arulprakasajothi ◽  
Pegyyem Lokaiah Rupesh ◽  
Hitesh Kumar Rana ◽  
Kariappan Elangovan
Keyword(s):  
Fluid Dynamics ◽  
Temperature Gradient ◽  
Surface Temperature ◽  
Gas Turbine ◽  
Turbine Blade ◽  
Flue Gas ◽  
Dynamics Simulation ◽  
Blade Surface ◽  
Numerical Validation ◽  
Surface Temperature Gradient

The gas turbine is being used in the applications of the aircraft propulsion system and land-based power generating systems more effectively. The manufacturers should optimise the temperature of the gas turbine engine components to enhance the life span of the components. The present research work concentrates on determining the surface temperature gradient on the fabricated turbine blades using a colour changing paint based on temperature attained on the surface. A calibration database has been created, and the surface temperature has been detected based on the available colour contours on the blade surface using human vision. An image processing algorithm has also been proposed for accurate temperature measurement on the blade surface. The obtained surface temperature using colour changing paint multi-colour change 350-8 has been calibrated with the conventional measurement technique IR thermography for experimental validation. A computational fluid dynamics simulation model of the turbine blade has been simulated to predict the surface temperature of blades using analysis systems fluid dynamics for numerical validation. The experimental and numerical validation results have shown a nominal value of error, which proves that the surface temperature gradient can be easily predicted with the help of temperature indicating paint using the proposed algorithm. The study has been extended further to evaluate the amount of emissive power radiated by the flue gas on the turbine blade surface based on the temperature and the wavelength of the colour obtained for the health monitoring of the blade.

scholarly journals Calculation of combustion air required for burning solid fuels (coal / biomass / solid waste) and analysis of flue gas composition

2020 ◽  
Vol 6 ◽  
pp. 36-45 ◽  
Author(s):  
Lizica Simona Paraschiv ◽  
Alexandru Serban ◽  
Spiru Paraschiv
Keyword(s):  
Solid Waste ◽  
Flue Gas ◽  
Solid Fuels ◽  
Gas Composition

SYNCOM-Plus: An Optimized Residue Treatment Process

2009 ◽  
Author(s):  
Ralf Koralewska
Keyword(s):  
Flue Gas ◽  
Large Scale ◽  
Treatment Process ◽  
Bottom Ash ◽  
Fine Fraction ◽  
Continuous Operation ◽  
Wash Water ◽  
Waste To Energy ◽  
Gas Composition ◽  
Energy Plant

In a large-scale pilot plant, studies on wet-mechanical treatment of bottom ash using the SYNCOM-Plus process were carried out by MARTIN GmbH in the SYNCOM waste-to-energy plant in Arnoldstein, Austria (approx. 11000 kg/h waste throughput). Granulate of > 2 mm and fine fraction of < 5 mm were produced by dry screening, washing and wet screening. Additionally, sludge was separated from the wash water. The fine fraction and sludge as well as the boiler ash were recirculated into the furnace. In conclusion, the SYNCOM-Plus process meets all requirements which need to be complied with in an optimized and effluent-free commercial residue treatment process for the recovery of industrial products. This paper documents successful continuous operation of the SYNCOM-Plus process in direct connection with bottom ash discharge as well as the effects on combustion, flue gas composition and residue qualities.

Insights into CO2 Capture by Flue Gas Hydrate Formation: Gas Composition Evolution in Systems Containing Gas Hydrates and Gas Mixtures at Stable Pressures

2018 ◽  
Vol 6 (5) ◽  
pp. 5732-5736 ◽  
Author(s):  
Aliakbar Hassanpouryouzband ◽  
Jinhai Yang ◽  
Bahman Tohidi ◽  
Evgeny Chuvilin ◽  
Vladimir Istomin ◽  
...  
Keyword(s):  
Co2 Capture ◽  
Gas Hydrates ◽  
Gas Hydrate ◽  
Flue Gas ◽  
Hydrate Formation ◽  
Gas Mixtures ◽  
Gas Composition ◽  
Gas Hydrate Formation

Pyrolysis of Municipal Solid Waste in Japan

1984 ◽  
Vol 106 (3) ◽  
pp. 377-382 ◽  
Author(s):  
M. Igarashi ◽  
Y. Hayafune ◽  
R. Sugamiya ◽  
Y. Nakagawa ◽  
K. Makishima
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Fluidized Bed ◽  
Flue Gas ◽  
Material Balance ◽  
Calorific Value ◽  
Continuous Operation ◽  
Gas Composition ◽  
Fuel Gas ◽  
Dual Fluidized Bed

Funabashi City’s Municipal Solid Waste Pyrolysis Plant is the first full-scale plant having a dual fluidized bed gasification system. The plant has the capacity of processing 4.5 × 105 kg/day of mixed municipal solid waste with a very limited emission of air, water and land pollutants. The energy is recovered as high calorific value fuel gas. Since April 1983, the plant has been in continuous operation. The purpose of this paper is to report on the system and the experience obtained during the 5 mo in which it was in operation. Data on the material balance of the pyrolysis, the analysis regarding the gas produced, the flue gas composition and the equipment used are included.

Laboratory Studies of Vanadium Precipitation with Flue-Gas Sulfuric Acid

2013 ◽  
Vol 803 ◽  
pp. 9-12
Author(s):  
Zhen Xiu Wu ◽  
Zhao Hui Sun ◽  
Wen Long Chen ◽  
Guang Chao Du
Keyword(s):  
Sulfuric Acid ◽  
Flue Gas ◽  
Process Conditions ◽  
Laboratory Studies ◽  
One Step ◽  
The Cost ◽  
Experimental Group

The exploratory experiments of precipitating vanadium which simulated the process conditions in a vanadium plant with the indexes of vanadium loss and the cost were tested with industrial sulfuric acid and flue-gas sulfuric acid in laboratory, respectively. The technology optimizations were studied by selecting the experimental group with the lowest vanadium loss and cost. The results indicate that the vanadium loss and cost are the lowest by one-step vanadium precipitation with flue-gas sulfuric acid, and the optimum processes are as follows: the pH of solution is adjusted to 2.2 after adding the vanadium precipitation agent; the precipitation is proceeded 1 hour at 99°C or 100°C. The vanadium loss and cost per 1000 kg V2O3 are respectively 3.06 kg and 763.18 yuan by the optimum processes, which are much less than the processes with industrial sulfuric acid.

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