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… 1961 when Tekniska Verken took sole ownership and operation. On some of the hydropower stations other activities has been contaminating sediment and soil. On a few properties there have been oil leaks which have been remedied to currently approved levels. It is of great …
… able to handle a larger share of intermittent electricity from solar, wind or hydropower that can automatically interact with thermal energy from biomass and waste in a flexible, efficient and economical manner. The project group therefore advice HEM to urgently take steps to …
Jämförelse av fångstrapportering mellan intervjuer och enkäter gjorda på trollingfiskare samt vädrets påverkan på ansträngning
… trout have either vanished or declined dramatically due to the construction of hydropower in the rivers around the lake, and still today the future of the remaining populations remains uncertain. To manage salmonid fishes effectively more knowledge of their ecology throughout …
En fallstudie av ett kraftverk i Umea?lven
… with an implementation of a low sloping trash rack with narrow spacing. A hydropower plant in Umea?lven was used as a case study. The basis for the study was a model where trash racks were dimensioned for inclinations between 25 and 45 degrees. Corresponding head loss …
Jämtkraft AB has recently modernized its hydropower station at Hissmofors by replacing four older worn out units with two new units. The generators uses a concept with sliding stator feet to deal with the thermal movements that occur in the stator during operation when the unit …
In hydropower plants it is necessary to always have local power supply. Therefore, the plants are equipped with batteries as stationary back up power. Vattenfall Vattenkraft is using lead acid batteries but has been investigating alternatives to replace them. The aim of this …
En förstudie och konsekvensutredning över förutsättningarna för ökade vandringsmöjligheter med nya fiskvägar.
The hydropower from Nissan River is of national interest and produces annually 230 GWh from the twelve power stations in the main flow. For modified waters a consideration between the power production and the biological values has to be made. This reports serves as a pre-study …
Uppsats för avläggande av filosofie kandidatexamen iKulturvård, Bebyggelseantikvariskt program15 hpInstitutionen för kulturvårdGöteborgs universitet2015:23
