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231224s2016 xx |||||o 00| ||eng c |
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|a 10.1177/0734242X15613153
|2 doi
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|a pubmed24n0850.xml
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Graube, Franziska
|e verfasserin
|4 aut
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| 245 |
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|a Optimisation of water-cannon cleaning for deposit removal on water walls inside waste incinerators
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|c 2016
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 11.10.2016
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|a Date Revised 30.12.2016
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © The Author(s) 2015.
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|a Deposits in municipal waste incinerators are very inhomogeneous in structure and constitution. They cause corrosion and reduce the efficiency, so they need to be removed frequently. Among other systems, operators use water cannons for the deposit removal. Two different removal mechanisms of water-cannon cleaning are suggested: A direct shattering of the deposit by the impact of the water jet, as well as the cracking caused by thermal stresses where droplets cool the deposits. As the contribution of each of the aforementioned mechanisms to the overall cleaning efficiency is unknown, we performed empirical investigations to determine the dominating effect. In a first experimental setup focusing on thermal stress, cold droplets were applied onto hot deposits taken from a waste incinerator. Results showed that the cleaning effect strongly depends on the deposit thickness and structure, so that the deposits could be categorised in three different groups. A second measurement campaign focused on the influence of deposit material, deposit temperature and water jet momentum. It could be shown that both deposit material and temperature have a significant effect on the cleaning efficiency, whereas an increase in water jet momentum only led to modest improvements. The combination of these two parameter studies implies that the influence of the thermal stress outweighs that of the momentum. This knowledge is applicable to the cleaning setup by increasing the temperature gradient
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Waste incinerator
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|a deposit removal
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|a momentum
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|a thermal stress
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|a water jet
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|a water walls
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|a water-cannon cleaning
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|a Water
|2 NLM
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| 700 |
1 |
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|a Grahl, Sebastian
|e verfasserin
|4 aut
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|a Rostkowski, Slawomir
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Beckmann, Michael
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA
|d 1991
|g 34(2016), 2 vom: 14. Feb., Seite 139-47
|w (DE-627)NLM098164791
|x 1096-3669
|7 nnns
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| 773 |
1 |
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|g volume:34
|g year:2016
|g number:2
|g day:14
|g month:02
|g pages:139-47
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|u http://dx.doi.org/10.1177/0734242X15613153
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