Searched for:
(1 - 15 of 15)
document
Versteylen, C.D. (author)
Advances in self-healing creep steels are driven by the understanding of its mechanism. Previous work on self-healing creep metals has shown selective precipitation inside the creep cavities, which has a beneficial effect on the creep lifetime. This effect occurswhen a solute supersaturation exists at the creep temperature. In the case of self...
doctoral thesis 2018
document
Vreugdenhil, H.S.I. (author)
Pilot projects are widely applied in water management. They can be used to test risky innovations at confined scale, but can also be used to delay policy decisions or to advocate a particular innovation. In this book the phenomenon ‘pilot project’ is explored both theoretically and empirically. A framework to analyse pilot projects is developed...
doctoral thesis 2010
document
Van den Bergh, J. (author)
Around 2004 the annual energy consumption of the Dutch (petro-)chemical industry was estimated to be 460 PJ of which 200 PJ could be allocated to separation processes [1]. In 2009, 15% of the global energy consumption was required for separation and purification processes to produce commodities. Moreover, it is expected that in 2040 the global...
doctoral thesis 2010
document
Castillo, J.M. (author)
The adsorption of water on hydrophobic zeolites such as silicalite and on hydrophilic MOF (metal-organic framework), Cu-BTC, is completely different, as described in chapters 2 and 4. While in hydrophobic materials water adsorption isotherms are very steep and difficult to measure, both experimentally and by simulation, in hydrophilic materials...
doctoral thesis 2010
document
Porfírio Ferreira, A.F. (author)
Branched hydrocarbons are preferred to linear hydrocarbons as ingredients in petrol, as they enhance the fuel octane number. By catalytic isomerisation linear hydrocarbons are converted into branched hydrocarbons, then it becomes necessary to separate the mixture. A variety of zeolites may be used for this purpose, either on thermodynamics or...
doctoral thesis 2007
document
Siemons, N. (author)
doctoral thesis 2007
document
Groen, J.C. (author)
Zeolites are crystalline microporous materials consisting of silicon, aluminium and oxygen atoms. A unique combination of properties such as high surface area, high (hydro)thermal stability, and strong acidity, makes that zeolites are frequently used as catalysts in various (petro)chemical processes. The pores of molecular dimensions are...
doctoral thesis 2007
document
Mazumder, S. (author)
The mechanisms, by which the coal seams sorb, retain and store gases needs, to be understood. The results presented in this thesis give an insight into the dynamics of CO2 and other flue gas components in coal that are related to operation feasibility of ECBM projects. The main issues relate to the permeability behavior and the flue gas/ CO2...
doctoral thesis 2007
document
Van den Berg, A.W.C. (author)
The feasibility of using zeolites, and more specifically the clathrasil subgroup, for hydrogen storage has been investigated by comparing their H2 loading rate and storage capacity to the technically required values. The uptake rate and capacity are determined by means of computational modelling for a large number of clathrasil structures. It...
doctoral thesis 2006
document
Neeft, E.A.C. (author)
Fission of actinides from nuclear waste in inert matrices (materials without uranium) can reduce the period in time that nuclear waste is more radiotoxic than uranium ore that is the rock from which ordinary reactor fuel is made. A pioneering study is performed with the inert matrices: MgO, MgAl2O4, Y3Al5O12, Y2O3 and CeO2-x. These inert...
doctoral thesis 2004
document
Kaiser, C.T. (author)
Up to a few years ago, muon spin rotation/relaxation (μSR [muonSR]) was used as a complementary technique in the study of magnetic intermetallic materials. Application of μSR [muonSR], however, covers a much wider range of scientific disciplines. A shift in scientific interest within the department away from metallic magnets, focused attention...
doctoral thesis 2001
document
Verberg, R. (author)
doctoral thesis 1998
document
van der Veen, J.W.C. (author)
doctoral thesis 1992
document
Abraham, G. (author)
Submarine outfall disposal of domestic and industrial sewage is a method of disposal of steadily growing importance. The flow from an ocean outfall is essentially that of a submerged horizontal or vertical jet. Thus a study of the hydrodynamics of such jets is needed to evaluate the dilution of the sewage flow. A study of this kind is presented...
doctoral thesis 1963
document
Tchen, C.M. (author)
A theoretical treatment of diffusion as function of turbulence, by working out the dispersion of small particles in turbulent fluid. The method of Kolmogoroff is used to decribe the movement in a statistical ways
doctoral thesis 1947
Searched for:
(1 - 15 of 15)