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Quantification of large steam bubble oscillations and chugging using image analysis
(Lappeenranta-Lahti University of Technology LUT, 2019-11-01)
The pressure suppression pool of a boiling water reactor as a safety system has vital importance from the nuclear reactor safety point of view. If a loss-of-coolant accident occurs, a large amount of steam is pushed through ...
Supercritical CO2 Numerical Modelling and Turbomachinery Design
(Lappeenranta-Lahti University of Technology LUT, 2019-04-16)
Supercritical CO2 Brayton cycles have attracted significant attention in recent years on the basis that they can achieve higher thermal efficiency at relatively lower turbine inlet temperature in comparison to conventional ...
Agent-Based Modeling as Part of Biomass Supply System Research
(Lappeenranta-Lahti University of Technology LUT, 2019-06-14)
Interest in the use of agent-based modeling (ABM) for studying biomass supply systems has increased because of its flexible and cost-efficient nature. While ABM has been around for a long time, recent developments in ...
Improving the environmental safety of ash from bioenergy production plants
(Lappeenranta University of Technology, 2018-12-14)
Each year, energy production plants in Eastern Finland produce just under 100,000 tonnes of different types of ash and slag in the process of energy production. The utilisation of energy production ash flows has made ...
International trade in biomass for energy production: The local and global context
(Lappeenranta University of Technology, 2018-08-31)
Biomass is an important source of renewable energy in the global energy mix. International trade in biomass is increasing. It is stimulating global use of biomass for energy and promoting development of bioenergy in many ...
Fluidized bed combustion and humidified gas turbines as thermal energy conversion processes of the future
(Lappeenranta-Lahti University of Technology LUT, 2020-12-14)
Growing awareness of environmental issues related to heat and electrical energy production has led to sustained research efforts to find ways to reduce fossil energy consumption and increase renewable energy usage. Future ...
Real-Time Efficient Computational Approaches for Hydraulic Components and Particulate Energy Systems
(Lappeenranta-Lahti University of Technology LUT, 2020-12-11)
The so-called fourth industrial revolution requires high-speed data transmission and application of real-time computation to the phenomena. These two technologies highlight the potential of the digital-twin concept for ...
Transforming the chemical pulp industry : From an emitter to a source of negative CO2 emissions
(Lappeenranta-Lahti University of Technology LUT, 2019-10-18)
The chemical pulp industry is an energy-intensive industrial sector. Modern kraft pulp mills are typically energy-independent, and fossil fuels are used mainly in lime kilns. Following the Paris Agreement, the pulp industry ...
The role of efficient forest biomass logistics on optimisation of environmental sustainability of bioenergy
(Lappeenranta-Lahti University of Technology LUT, 2020-06-17)
Forest biomass is a crucial element in the energy system in many parts of the world, especially in Finland, and it is expected to play a similar, if not a more important, role in the near future as countries aim to replace ...