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Heat Demand Forecasting Models’ Development: Use of Data Mining Tools in SQL Server Analysis Services
(2015)
This thesis introduces heat demand forecasting models which are generated by using data mining algorithms. The forecast spans one full day and this forecast can be used in regulating heat consumption of buildings. For ...
Puu- ja turvetuhkan hyötykäyttökelpoisuuteen vaikuttavat tekijät pienillä polttolaitoksilla
(2015)
Energiantuotannossa syntyvä tuhka voi olla laadultaan hyvin vaihtelevaa ja laadunvaihtelulle on haastavaa löytää yksiselitteistä syy-seuraussuhdetta. Ympäristönsuojelulainsäädäntö ja taloudelliset intressit ohjaavat ...
On site measurements of DC link electrolytic capacitor bank of frequency converter using constant DC magnetization of the motor
(2015)
Preventive maintenance of frequency converters has been based on pre-planned replace-ment of wearing or ageing components. Exchange intervals follow component life-time expectations which are based on empirical knowledge ...
The role of nuclear and other conventional power plants in the flexible energy system
(2015)
This thesis reviews the role of nuclear and conventional power plants in the future energy system. The review is done by utilizing freely accesible publications in addition to generating load duration and ramping curves ...
Economic and environmental evaluation of renewable energy systems
(2015)
The main objective of this thesis is to evaluate the economic and environmental effectiveness of three different renewable energy systems: solar PV, wind energy and biomass energy systems. Financial methods such as Internal ...
Sähkönmyyntiyhtiöiden riskienhallinnan haasteet ja kehittäminen
(2015)
Diplomityön tavoitteena on esitellä sähkökaupan ja erityisesti sähköyhtiöiden kokemia sähkönmyynnin riskejä sekä kuvata sähkönmyyntiin liittyvää riskienhallinnan problematiikkaa. Tarkastelun näkökulmana on tietojärjestelmien ...
Prosessiteollisuuden sekoittimen elinkaariarviointi
(2015)
Työn tavoitteena oli tehdä elinkaariarviointi (LCA) prosessiteollisuuden sekoittimelle Helmix HF-80 ja analysoida LCA-tulokset, vaikutus ilmaston lämpenemisen potentiaalin (GWP) suhteen, sekä tutkia GWP-vaikutuksen ...
Effects of Fabrication Processes on the Behavior of S960 Ultra High Strength Steel (UHSS)
(2015)
Strenx® 960 MC is a direct quenched type of Ultra High Strength Steel (UHSS) with low carbon content. Although this material combines high strength and good ductility, it is highly sensitive towards fabrication processes. ...
Carbon sources for Power-to-Gas applications in the Finnish energy system
(2015)
This thesis is done as a part of the NEOCARBON project. The aim of NEOCARBON project
is to study a fully renewable energy system utilizing Power-to-Gas or Power-to-Liquid
technology for energy storage. Power-to-Gas ...
Economics of Power-to-Gas integration to wastewater treatment plant
(2015)
Solar and wind power produce electricity irregularly. This irregular power production is problematic and therefore production can exceed the need. Thus sufficient energy storage solutions are needed. Currently there are ...