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Purification of aqueous electrolyte solutions by air-cooled natural freezing
(Lappeenranta University of Technology, 2016-10-19)
Freeze crystallization is a particular type of a purification method where the solvent
freezes out, which constricts the volume of the solution, leaving thus behind a more
concentrated solution. In the case of freezing ...
Study on system design and key technologies of case closure welding for ITER Correction Coil
(Lappeenranta University of Technology, 2016-10-07)
International Thermonuclear Experimental Reactor (ITER) Correction Coil (CC) case,
made of ultra-low carbon austenitic stainless steel 316LN with 20 mm thickness, was
designed in the outmost layer of the CC, and was used ...
Design and Material Selection of High-Speed Rotating Electrical Machines
(Lappeenranta University of Technology, 2016-06-03)
The increasing emphasis on energy efficiency is starting to yield results in the reduction
in greenhouse gas emissions; however, the effort is still far from sufficient. Therefore,
new technical solutions that will enhance ...
Variational ensemble Kalman filtering applied to data assimilation problems in computational fluid dynamics
(Lappeenranta University of Technology, 2016-08-15)
One challenge on data assimilation (DA) methods is how the error covariance for the model state is computed. Ensemble methods have been proposed for producing error covariance estimates, as error is propagated in time using ...
Titanium dioxide based nanomaterials for photocatalytic water treatment
(Lappeenranta University of Technology, 2016-08-05)
Water treatment using photocatalysis has gained extensive attention in recent years.
Photocatalysis is promising technology from green chemistry point of view. The most
widely studied and used photocatalyst for decomposition ...
Assessment of process safety performance in Seveso establishments
(Lappeenranta University of Technology, 2016-12-16)
This study was begun within Tukes, The Finnish Safety and Chemicals Agency, in 2009 with the purpose of observing the effective process safety procedures used by operators and authorities in other European countries. For ...
Modeling the effects of unsteady flow patterns on the fireside ash fouling in tube arrays of kraft and coal-fired boilers
(Lappeenranta University of Technology, 2016-10-20)
The modeling of ash deposition trends, rates, and shapes has been the target of numerous
investigations since slagging and fouling constitute a major penalizing factor in boiler
performance. Also, they are the most usual ...
Application of an embedded control system for aging detection of power converter components
(Lappeenranta University of Technology, 2016-12-02)
In modern power conversion applications, the converter fault tolerance and the reliability
of a power supply have become key requirements. Condition monitoring of power supplies
has been suggested to support these ...
Thermal modelling of commercial lithium-ion batteries
(Lappeenranta University of Technology, 2016-01-08)
The accelerating adoption of electrical technologies in vehicles over the recent years has led to an increase in the research on electrochemical energy storage systems, which are among the key elements in these technologies. ...
Axial Flux Permanent Magnet Machines – Development of Optimal Design Strategies
(Lappeenranta University of Technology, 2016-12-08)
Nowadays, rotational electrical machines are involved in all our daily activities. Modern
life is inconceivable without electrical machines, both motors and generators, and
therefore, machine designers can be considered ...