GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW) | ||||||
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19:50 Mar 20, 2013 |
Dutch to English translations [PRO] Tech/Engineering - Ships, Sailing, Maritime / Waterschil | |||||||
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| Selected response from: Lianne van de Ven United States Local time: 16:52 | ||||||
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Summary of answers provided | ||||
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4 | layer of water runs off through overflow |
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layer of water runs off through overflow Explanation: Wij gebruiken de term ’waterschil’. Dit is de laag water die op de laag zand in de beun aanwezig is. Ik weet niet hoe groot deze ’waterschil’ in het algemeen is. http://ikregeer.nl/pdf/Stcrt-2008-74-URS488.pdf?token=805045... Hier wordt eea in het Engels uitgelegd: Basically there are two main methods for loading the hopper. The ‘Constant Volume System’ (CVS). This system has a fixed overflow level so the effective volume of the hopper is constant. The TSHD is designed for filling the hopper with sediment with a density of 1.9-2.0 ton/m3. The ‘Constant Tonnage System’ (CTS). The system has an adjustable overflow level. The hopper is designed for a density of 1.3-1.7 ton/m3 in combination ith a maximum tonnage. When the content of the hopper reaches the maximum tonnage, the overflow is owered in order to keep the tonnage of the hopper content constant. This system has certain advantages, like eaching the maximum tonnage sooner than with CVS, resulting in the pumps to be as low as possible, giving a igher mixture density. De Koning (1977) has compared both systems. he sedimentation in the hopper occurs during the phases 5, 6, 7 and 8. During phase 5 the hopper is filled with ixture until the overflow level is reached. During this phase 100% of the soil is assumed to stay in the hopper nd settle. When the overflow level is reached, phase 6, depending on the grain distribution, a specified ercentage of the soil will not settle and will leave the hopper via the overflow. During this phase scouring does ot have much influence on the sedimentation process. When the maximum weight of the hopper contents is eached, the overflow will be lowered continuously in order to keep the weight of the hopper contents constant t its maximum (only CTS system). When the sediment level rises, phase 8, the flow velocity above the ediment increases and scouring will re suspend settled particles. From: http://www.dredgingengineering.com/dredging/media/LectureNot... -------------------------------------------------- Note added at 1 hr (2013-03-20 21:17:03 GMT) -------------------------------------------------- or probably better: via overflow -------------------------------------------------- Note added at 1 hr (2013-03-20 21:19:59 GMT) -------------------------------------------------- Sorry for the missing letters, I must have deleted them accidentally when trying to get the sentences together. The text is from "Dredging processes: the loading process of a trailing suction hopper dredge." and is probably useful for your translation. |
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