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Coolability of porous core debris beds : Effects of bed geometry and multi-dimensional flooding
(VTT Technical Research Centre of Finland Ltd, 2015-10-23)
This thesis addresses the coolability of porous debris beds in the context of severe
accident management of nuclear power reactors. In a hypothetical severe accident
at a Nordic-type boiling water reactor, the lower ...
Adaptive Markov chain Monte Carlo and Bayesian filtering for state space models
(Lappeenranta University of Technology, 2014-12-12)
This thesis is concerned with the state and parameter estimation in state space models. The estimation of states and parameters is an important task when mathematical modeling is applied to many different application areas ...
Performance benchmarking and incentive regulation – considerations of directing signals for electricity distribution companies
(Lappeenranta University of Technology, 2008-06-18)
After the restructuring process of the power supply industry, which for instance in Finland took place in the mid-1990s, free competition was introduced for the production and sale of electricity. Nevertheless, natural ...
Monitoring of crystallization processes by using infrared spectroscopy and multivariate methods
(2006-09-01)
Väitöstutkimuksessa on tarkasteltuinfrapunaspektroskopian ja monimuuttujaisten aineistonkäsittelymenetelmien soveltamista kiteytysprosessin monitoroinnissa ja kidemäisen tuotteen analysoinnissa. Parhaillaan kiteytysprose ...
Heterogeneous mass transfer in fluidized beds by computational fluid dynamics
(Lappeenranta University of Technology, 2014-12-02)
The main objective of this research is to estimate and characterize heterogeneous mass
transfer coefficients in bench- and pilot-scale fluidized bed processes by the means of
computational fluid dynamics (CFD). A further ...
Converter-flux-based current control of voltage source PWM rectifiers - analysis and implementation
(2003-12-12)
Pulsewidth-modulated (PWM) rectifier technology is increasingly used in industrial applications like variable-speed motor drives, since it offers several desired features such as sinusoidal input currents, controllable ...
Integrated hub gear motor for heavy-duty off-road working machines - interdisciplinary design
(Lappeenranta University of Technology, 2017-03-23)
This doctoral dissertation studies solutions that meet the demands made for the propulsion
motors of off-road working machines. It has been shown that in a hybridization process,
without a mechanical gear, it is not ...
Training system for conceptual design and evaluation for wastewater treatment
(Lappeenranta University of Technology, 2010-12-17)
Rising population, rapid urbanisation and growing industrialisation have severely stressed water quality and its availability in Malawi. In addition, financial and institutional problems and the expanding agro industry ...
Impacts of capacity remunerative mechanisms on cross-border trade
(Lappeenranta University of Technology, 2015-09-21)
The European ambitious targets to increase the share of renewable generation pose a challenge
to the generation adequacy. Many European member states are concerned that energy-only
markets alone might not be able to ...
Innovation in a Non-Formal Adult Education Organisation – Multi-Case Study in Four Adult Education Centres
(Lappeenranta University of Technology, 2013-06-14)
More than ever, education organisations are experiencing the need to develop new
services and processes to satisfy expanding and changing customer needs and to adapt to
the environmental changes and continually tightening ...