Searched for: subject%3A%22Furnaces%22
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Keulen, A. (author), van Zomeren, A. (author), Dijkstra, J.J. (author)
This study explores the leaching of oxyanionic metalloid species (As, Mo, Se, V and Cr) from alkali activated slag-fly ash materials (AAM), dependent on various mixture parameters i.e., activator molarity, slag-fly ash precursor/binder compositions, liquid to binder ratio, curing time and strength. The analyses focusses on the leaching of...
article 2018
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van Dijk, H.A.J. (author), Cobden, P.D. (author), Lukashuk, L. (author), van de Water, L. (author), Lundqvist, M. (author), Manzolini, G. (author), Cormos, C.C. (author), van Dijk, C. (author), Mancuso, L. (author), Johns, J. (author), Bellqvist, D. (author)
Industrial processes contribute significantly to global carbon dioxide emissions, with iron and steel manufacturing alone responsible for 6% of the total figure. The STEPWISE project, funded through the European Horizon 2020 (H2020) Low Carbon Energy (LCE) programme under grant agreement number 640769, is looking at reducing CO2 emissions in the...
article 2018
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Holthuizen, P.E. (author), Çopuroglu, O. (author), Polder, R.B. (author)
In the Netherlands civil engineering structures, such as overpasses, bridges and tunnels are generally built using blast furnace slag cement (BFSC, CEM III/B) concrete, because of its high resistance against chloride penetration. Although the Dutch experience regarding durability performance of BFSC concrete has been remarkably good, its...
conference paper 2017
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Polder, R.B. (author), de Rooij, M.R. (author), Larsen, C.K. (author), Pedersen, B. (author)
Blast furnace slag cement (BFSC) has been used in reinforced concrete structures in marine and road environment in The Netherlands for nearly a century. Experience is good and long service lives can be obtained. In Norway experience with BFSC is scarce. In The Netherlands, a high resistance against chloride penetration and a high electrical...
conference paper 2016
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Valcke, S.L.A. (author), Pipilikaki, P. (author), Fischer, H.R. (author), Verkuijlen, M.H.W. (author), Eck, E.R.H. (author)
Geopolymers are systems of inorganic binders that can be used for sustainable, cementless concrete and are formed by alkali activation of an aluminium–silicate precursor (often secondary resources like fly ash or slag). The type of aluminium– silicate precursor and its potential variations within one batch may influence geopolymer performance....
article 2014
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Polder, R.B. (author), Nijland, T.G. (author), de Rooij, M.R. (author), Larsen, C.K. (author), Pedersen, B. (author)
road environment in The Netherlands for nearly a century. The experience is good and structures with long service lives can be obtained, as has been shown by several field studies. This is caused by a high resistance against chloride penetration and a high electrical resistivity, demonstrated both in the field and in the laboratory. Due to the...
conference paper 2014
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van Kersbergen, M.J. (author), Beerkens, R.G.C. (author), Sarmiento-Darkin, W. (author), Kobayashi, H. (author)
The energy efficiency performance, production stability and emissions of oxygen-fired glass furnaces are influenced by the type of burner, burner nozzle sizes, burner positions, burner settings, oxygen-gas ratios and the fuel distribution among all the burners. These parameters have been optimized for a 300 tpd (metric tons per day glass pull)...
conference paper 2012
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Beerkens, R.G.C. (author), van Limpt, J.A.C. (author), Lankhorst, A.M. (author), van Santen, P.J. (author)
All over the world, there is an increasing drive to develop new technologies or concepts for industrial glass melting furnaces, with the main aim to increase the energy efficiency, tabilize production and reduce emissions. The application of new process sensors, improved furnace design, intelligent control strategy and waste gas heat recovery...
conference paper 2012
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Beerkens, R.G.C. (author), Kers, G. (author), van Santen, E. (author)
This presentation shows the advantages of re-melting post-consumer glass, but also the potential risks of using contaminated cullet in the raw material batch of glass furnaces (e.g. container glass furnaces). As an example of potential advantages: increasing the cullet % in the batch of an efficient end-port fired regenerative container glass...
conference paper 2011
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Hemery, Y.M. (author), Anson, N.M. (author), Havenaar, R. (author), Haenen, G.R.M.M. (author), Noort, M.W.J. (author), Rouau, X. (author), TNO Kwaliteit van Leven (author)
This study evaluated the potential of using ultra-fine grinding and electrostatic separation of wheat bran as methods to improve the bioaccessibility of para-coumaric acid (pCA), sinapic acid (SA) and ferulic acid (FA) from bran-rich breads. Bran fractions were produced and used to bake white bread, whole-grain bread, and seven different bran...
article 2010
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Qian, S. (author), Zhou, J. (author), de Rooij, M.R. (author), Schlangen, E. (author), Ye, G. (author), van Breugel, K. (author), TNO Bouw en Ondergrond (author)
The self-healing behavior of a series of pre-cracked fiber reinforced strain hardening cementitious composites incorporating blast furnace slag (BFS) and limestone powder (LP) with relatively high water/binder ratio is investigated in this paper, focusing on the recovery of its deflection capacity. Four-point bending tests are used to precrack...
article 2009
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Abu-Zahra, M.R.M. (author), Feron, P.H.M. (author), Jansens, P.J. (author), Goetheer, E.L.V. (author), TNO Industrie en Techniek (author)
This work describes a study in advanced post-combustion based on CO2-capture technologies to be integrated within the Hypogyny concept (electricity generation with co-hydrogen production). Two different Hypogen concepts based on integrating IGCC (Integrated Gasification Combined Cycle) and post-combusting CO2 capture are proposed and...
article 2009
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Beerkens, R.G.C. (author), TNO Industrie en Techniek (author)
Conventional industrial glass furnaces show broad glass melt residence time distributions in the melting tanks and average residence times may be up to more than two days for high quality glass products, such as float glass or TV glass, despite the minimum residence times of 8-10 hours (or even less than 4 hours for container glass furnaces)....
article 2008
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Jonson, B. (author), Zethrasus, B. (author), Beerkens, R.G.C. (author), Lankhorst, A.M. (author), TNO Industrie en Techniek (author)
The technological needs to achieve CO2 neutrality during glass manufacturing have been investigated by theoretical calculations on energy balances and experimental investigations on batch reactivity and fining efficiency. The concept is based on the assumption of utilization of woody bio fuel combustion directly over the batch blanket and glass...
conference paper 2008
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Beerkens, R.G.C. (author), van Limpt, J.A.C. (author), TNO Industrie en Techniek (author)
The mechanism of nitrogen oxide (NOx) formation in combustion chambers of glass furnaces is briefly described. The most important parameters governing the NOx emissions of glass furnaces are discussed. Elimination or minimisation of conditions that cause the formation of nitrogen oxides in regenerative furnaces have been tested in industrial...
article 2008
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van Limpt, J.A.C. (author), Beerkens, R.G.C. (author), TNO Industrie en Techniek (author)
A laboratory test facility has been developed to measure evaporation rates of different volatile components from commercial and model glass compositions. In the set-up the furnace atmosphere, temperature level, gas velocity and batch composition are controlled. Evaporation rates have been measured for sodium, potassium, boron and chloride...
article 2007
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Scalet, B.M. (author), Slade, S. (author), Kasper, A. (author), de Marcke van-Lummen, G. (author), Gitzhofer, K. (author), van Limpt, H. (author), TNO Industrie en Techniek (author)
The ICG Technical Committee 13 (TC13 "Environment") have reviewed the methods for sampling and analysing selenium emissions from glass furnaces. Selenium is an important constituent of some types of glass but unfortunately, due to its high volatility, much of the selenium added to the batch of such glasses leaves the furnace in the waste gases....
article 2006
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TNO Industrie en Techniek (author), Beerkens, R.G.C. (author), van der Schaaf, J. (author)
A method for the prediction of gas evolution from a glass melt during fining processes has been described. This procedure is based on the assumption of thermodynamic equilibrium conditions between the species in the glass melt and co-existing gas phases. The method has been applied to estimate (a) the onset temperature of fining and (b) the...
article 2006
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TNO Industrie en Techniek (author), Laimböck, P.R. (author), Beerkens, R.G.C. (author)
The development of a special oxygen sensor for the continuous measurement of equilibrium oxygen pressure and oxygen content in the float bath of a float-glass production line was discussed. The measuring principle is based on an electrochemical cell where the core of the sensor consist of a metal-metal oxide mix in a fully-yttria-stabilized...
article 2006
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Verheijen, O.S. (author), op den Camp, O.M.G.C. (author), Beerkens, R.G.C. (author), Backx, T. (author), Huisman, L. (author), TNO Industrie en Techniek (author)
For the automatic control of glass quality in glass production, the relation between process variable and product or glass quality and process conditions/process input parameters must be known in detail. So far, detailed 3-D glass melting simulation models were used to predict the effect of process input variables, such as fuel consumption and...
conference paper 2005
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