Search for dissertations about: "Water hammer"

Showing result 1 - 5 of 10 swedish dissertations containing the words Water hammer.

  2. 1. System for water driven down-hole hammer drilling

    Author : Göran Tuomas; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Vattenteknik; Water Resources Engineering;

    Abstract : Drilling with water driven down-hole hammers is a recently developed method for competitive production of boreholes. The technology requires large flow rates of preferably high quality fluid to drive the hammer tool. One method to reduce the consumption is to process and recycle the used drilling fluid. READ MORE

  4. 2. From words to action : Lessons from active stakeholder participation in water management

    Author : Frida Franzén; Berit Balfors; Monica Hammer; Newig Jens; Södertörns högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; stakeholder participation; EU Water Framework Directive; eutrophication; catchment-based water management; agriculture.; Environmental Studies; Miljövetenskapliga studier; Östersjö- och Östeuropaforskning; Baltic and East European studies; Mark- och vattenteknik;

    Abstract : Water governance worldwide is going through a shift towards more holistic and participatory approaches. In Europe, the EU Water Framework Directive (WFD) adopted in 2000, aims at protecting surface water and groundwater. READ MORE

  5. 3. Water powered percussive rock drilling : process analysis, modelling and numerical simulation

    Author : Göran Tuomas; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Vattenteknik; Water Resources Engineering;

    Abstract : This thesis is devoted to problems, processes and systems related to the recently developed water powered percussive rock drilling method. The technology, which uses ordinary water to drive down-the-hole hammers, has been used to produce more than 6 million meters of blast holes within the mining industry. READ MORE

  6. 4. Creating pathways for stakeholder participation in water management

    Author : Frida Franzén; Berit Balfors; Monica Hammer; Marie Stenseke; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The role of stakeholder participation has been increasingly recognized as important in water management. The EU Water Framework Directive (WFD), adopted in 2000 requires Member States to fulfill three levels of participation; information, consultation and active involvement. READ MORE

  7. 5. Towards Sustainable Urban Development in Expansive Urban Regions : Conditions and Challenges for Municipal Spatial Planning Practice

    Author : Johan Högström; Berit Balfors; Monica Hammer; Patrik Tornberg; KTH; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Sustainable development; Sustainability; Cross-level; Interplay; Mark- och vattenteknik; Land and Water Resources Engineering;

    Abstract : From the local to the global level, there is a growing insight that human actions are having a profound and wide-reaching impact on natural and social systems. As a consequence, there is a need for sustainable development and planners are now challenged to integrate social, ecological and economic aspects in utilized planning process that span from the regional to the local. READ MORE