Hae LUTPubista
Aineistot 1-10 / 127
Hydraulic energy recovery by replacing a control valve with a centrifugal pump used as a turbine
(2016)
Reverse running centrifugal pumps as turbines (PaT’s) are used in small-scale hydropower generation mainly because of lower investment costs. Predicting the turbine mode operation point for a centrifugal pump has a lot of ...
Exploring technological transitions: Case study on the implications of the blockchain technology in the development of the Finnish energy sector
(2017)
This master’s thesis presents a case study on the implications of emerging technologies in systemic transition trajectories. More specifically, an ongoing technological transition, referring to major technological changes ...
Rankahakkeen tiivistämisen vaikutus kuljetuskustannuksiin
(2017)
Työssä tutkittiin rankahakkeen tiivistymistä eri kuormantäyttötavoilla. Tutkimuksessa tarkasteltiin puhallusta ja kauhakuormaajan käyttämistä kuormantäyttötapoina ja vaikutusta rankahakkeen tiivistymiseen. Lisäksi työssä ...
Biofuels - a contribution assessment for the global energy transition integrating aspects of technology, resources, economics, sustainability and alternative options
(2018)
Burning of fossil fuels is one of the main drivers accelerating the climate change. COP21 agreement adopted at the United Nations Climate Change Conference has addressed the climate change. In order to comply with the ...
CO2 reduction potential of renewable synthetic natural gas production using power-to-gas technologies : A case study for Scotland
(2018)
The purpose of this thesis work is to conduct a Life Cycle Assessment (LCA) regarding the potential for reduction of CO2 emissions from production of Synthetic Natural Gas (SNG) with Power-to-Gas (PtG) technology utilizing ...
Use of recycled nutrients in biological wastewater treatment
(2017)
In this master’s thesis, possibilities for using recycled nutrients in industrial wastewater treatment, as nutrient source, were studied. Possible sources for recycled nutrients found, were biogas plant’s reject water, ...
Kuorinnan ja puuraaka-aineen muutosten vaikutus polttojakeen ominaisuuksiin
(2017)
Työn tavoitteena on tutkia uuden katkaisuaseman vaikutusta koivukuitupuun kuorintaan sellukuorimolla, kun kuorittavan kuitupuun pituus muuttuu. Tarkoituksena on seurata kuorimon puuhäviöiden ja energiankulutuksen muutoksia, ...
Hydraulic energy harvesting with variable-speed-driven centrifugal pump as turbine
(2017)
Pumps as turbines (PaTs) have been traditionally used in small-scale hydropower and industrial hydraulic power recovery as a cost-effective alternative for conventional turbines. Standard centrifugal pumps can be run as ...
Teollisuuden sähkönjakeluverkon luotettavuus metsäteollisuusintegraatissa
(2017)
Metsäteollisuuden tuotantolaitoksissa sähkönkulutus on suurta ja keskittynyt pienelle maantieteelliselle alueelle. Tuotantolaitosten prosessien energiaintensiivisyys aiheuttaa vaatimuksen sähkönjakeluverkon laitteiden ...
Thermal optimization of steam air cooled condensers for power plants
(2017)
Cooling is a significant part of any power generation cycle. An ACC (Air Cooled Condenser) is used to condense steam vapors from the steam turbine, lower heat rejection temperature and increase the power generation efficiency. ...