Selaus koulutusohjelman mukaan kokoelmassa Diplomityöt ja Pro gradu -tutkielmatSchool of Energy Systems, Energiatekniikka
Aineistot 41-60 / 470
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Boiling instabilities in helical coil steam generator
(2022)Helically coiled steam generator is an essential part of current generation small modular reactors like NuScale due to its compactness and high heat transfer area. Instabilities due to boiling water inside helically coiled ... -
Business model for microgrids in Sub-Saharan Africa rural areas : a case study in Revon C, Namibia
(2019)The Sub-Saharan Africa (SSA) has the lowest electricity access rate in the world, and the number is rising due to the rapid population growth. More than half of the region's population lacks electricity, and among those, ... -
BWRX-300 Isolation Condenser System analysis
(2022)The purpose of this master's thesis is to gain an understanding of both the basic principles of modern passive safety systems in the nuclear power industry and to study in depth the individual aspects of the impact on ... -
Calculation comparison of waste heat recovery boiler dimensioning tools for gas turbine application
(2019)Gas turbine combined cycles are used to increase the efficiency and power output of gas turbine power plants. These solutions are often used as peak load power plants, where short start up time and high power-output are ... -
CASMO5-koppipalamaohjelman validointi Loviisan voimalaitokselle
(2023)Loviisan ydinvoimalaitoksen lataussuunnittelussa reaktorisydämen teoreettinen tehojakauma ja tehojakaumasta riippuvat termohydrauliset suureet ratkaistaan käyttämällä kolmiulotteista nodaaliohjelmaa HEXBU-3D ja sauvatehojen ... -
CFD modelling of industrial scale gas flame with OpenFOAM software
(2019)In this Master’s Thesis OpenFOAM software was used to perform CFD modelling of an industrial scale gas fired process furnace. Goal was to evaluate the performance of open source tool OpenFOAM in modelling non-premixed ... -
CFD simulation of two-bucket Savonius turbine with NACA 0012 airfoil stator vanes
(2019)To mitigate against the effect of urbanization on the ecosystem, the need for an alternative and renewable source of energy is paramount. This has resulted in increased popularity of wind turbines. Savonius wind turbine ... -
Changing requirements for air emission monitoring and reporting in energy production
(2021)Emission monitoring and reporting is needed to limit emissions from combustion plants, which remain the greatest source of electricity in the European Union (EU). The purpose of this master’s thesis was to clarify the ... -
CHC-lämpöpumppujen käytettävyyden tehostaminen
(2023)Diplomityön aiheena oli selvittää Helen Oy:n CHC-lämpöpumppujen käytettävyyden tehostamista tutkimalla annettujen vaihtoehtojen osalta teknillistaloudellinen kannattavuus ja tarkastella yleisellä tasolla kaukolämpöverkon ... -
CHP-laitoksen säätökyvyn ja tehokkuuden kehittäminen
(2023)Sähkön keskimääräinen markkinahinta ja hintavolatiliteetti ovat kasvaneet merkittävästi viime vuosien aikana. Sähkön hintavolatiliteettiin vaikuttaa esimerkiksi uusiutuvat säästä riippuvat sähköntuotantomuodot, kuten tuuli- ... -
CHP-voimalaitoksen tuotannon optimointi sähkön spot-hinnan mukaan
(2024)Tämän diplomityön tarkoitus on tutkia lämmön ja sähkön yhteistuotantovoimalaitosten sähköntuotannon optimointia Nord Pool:n sähköpörssin spot-hinnan mukaan. Nykyisellä ajotavalla yhteistuotantolaitosten sähköntuotanto ... -
CMC-tehtaan tehdaslämpöverkon suunnitteluperusteiden muodostaminen ja prosessin hukkalämmön hyödyntämispotentiaalin kartoitus
(2020)Tässä työssä muodostettiin suunnitteluperusteet CP Kelco Oy:n Äänekosken CMC-tehtaalle rakennettavalle tehdaslämpöverkolle. Työssä tarkasteltiin lisäksi tuotantoprosessin valituissa kohteissa syntyvien hukkalämpövirtojen ... -
Comparison of direct and indirect evaporators in an air-source heat pump
(2023)Climate change requires the development of low-carbon emission heat production technologies. Heat pumps enable production of low-emission heat. A large-scale air-source heat pump using pentane as the refrigerant is studied ... -
Comparison of societal risk acceptance criteria in different areas of society
(2023)Risks are an inherent part of society and the world we live in. Risk can take many forms. Some risks are more controllable by the person affected by the risk, such as the risk we voluntarily take with a dangerous hobby. ... -
Computational fluid dynamics (cfd) analysis of the core of motel facility
(2023)The aim of this thesis is to perform Computational Fluid Dynamics (CFD) analysis of the core of the Modular Test Loop (MOTEL) facility designed and built in Lappeenranta–Lahti University of Technology LUT using the simulation ... -
Computational fluid dynamics simulation of a proton exchange membrane electrolyzer
(2023)The transition of the global energy sector from fossil fuels towards renewable-based energy systems necessitates development of methods and technologies to perform as energy storages and produce energy carrier mediums. ... -
Conceptual design and feasibility tool development for fast pyrolysis with catalytic upgrading
(2022)This thesis has been made for Valmet Technologies Oy. The thesis investigated how different conceptual designs for fast pyrolysis with catalytic upgrading affected the profitability of plants on three different scales. The ... -
Cooling procedure of the modern kraft recovery boiler
(2022)In recent years, the trend has been to reduce the shutdown time of the pulp mills by extending the operation periods and by shortening the duration of planned shutdowns. With this, it has become necessary to find more ways ... -
Coupled analyses of steam line break for integral PWR
(2022)The development of carbon-free energy technology has seen a huge rise in recent decades, but Europe is still heavily reliant on fossil fuel imports and faces challenges in securing a reliable and sustainable energy supply ... -
Critical flow computer modelling using trace code
(2022)In this paper critical flow and void fraction will be observed as a result of simulation comparing several initial data. Concerns about safety in nuclear energy industries has become number one priority after several nuclear ...