Sökning: "Full reserves"

Visar resultat 1 - 5 av 16 uppsatser innehållade orden Full reserves.

1. 1. Extraction of Backfilled Tailings in the Dannemora Mine – Economic Potential and Rock Stability Assessment

   Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :John Winlund; [2022]
   Nyckelord :backfilled tailings; Dannemora mine; iron ore; rock stability; stopes; återfylld anrikningssand; Dannemoragruvan; järnmalm; bergstabilitet; öppna brytningsrum;

   Sammanfattning : The cut-off grade determines what rock mass are economic to mine. At the Dannemora mine, in eastern Bergslagen, Sweden, previously processed ore generated tailings (enrichment sand) with an iron content of 21-22 % that was backfilled into large open bodies (stopes) in the mine between 2013-2015. LÄS MER

3. 2. Modelling and Dynamic Performance of Hydropower in Frequency Regulation : Modelling of Double Regulated Hydropower Turbines

   Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Författare :Kristinn Arnar Ormsson; [2021]
   Nyckelord :Frequency Containment Reserves FCR ; Hydropower; Double regulated DR turbine; Non-linear modelling; Simulink.; Frekvensreserv FCR ; vattenkraft; dubbelreglerad DR turbin; icke-linjär modellering; Simulink.;

   Sammanfattning : The frequency of the Nordic power system has been increasingly deviating outside the normal frequency band (50 ± 0.1 Hz) in the past two decades. In an effort to counteract this, the Nordic Transmission System Operators (TSOs) have proposed new and stricter requirements on the units participating in Frequency Containment Reserve (FCR) market. LÄS MER

4. 3. A study on the profitability of Virtual Power Plants and their potential for compensation of imbalances

   Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Författare :Aralar Irigoyen Tineo; [2019]
   Nyckelord :;

   Sammanfattning : In the current climate crisis, there is an increasing need for the integration of renewableenergy in higher penetration indexes, which is boosting innovation not only in the technology but also in new business models.  Virtual Power Plants (VPPs) are an aggregation model for generation that is said to be able to decrease imbalances from renewable generation while improving economic performance. LÄS MER

5. 4. Determining an Optimal Level of Power System Investments Under Large Scale Penetration of Solar Power in Saudi Arabia

   Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Författare :Hatem Alatawi; [2019]
   Nyckelord :;

   Sammanfattning : The Saudi Arabia government set ambitious plans to adopt renewable energy sources in the energy mix as part of its strategy to diversify its economy away from oil. Ac- cording to the renewable energy project development office (REPDO), the total RES capacity installed would amount to 27.3 GW by 2023 and 58.7 GW by 2030. LÄS MER

7. 5. Eliminating Cash; cash-free corporate liquidity : A study on the plausibility and efficiency of financial lean

   Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

   Författare :Viktor Charpentier; [2019]
   Nyckelord :Capital structure; capital stack; leverage; cash position; cash holding; interest bearing debt; net debt; operational credit; credit facility; RCF; rolling credit; overdraft account; overdraft; debt overhang; cash pool; liquidity; liquidity management; cash management; working capital; liquidity fluctuations; financial lean; kapitalstruktur; skuldsättning; kassa; räntebärande; nettoskuld; operationell kredit; RCF; revolver; checkräkningskredit; debt overhang; cash pool; likviditet; likviditetspool; cash management; rörelsekapital; finansiell lean;

   Sammanfattning : This paper addresses the problem of a failing net debt approach; deposited funds rarely compensate the cost of debt. Venturing into operational credit facilities, the study evaluates the efficiency and feasibility of transitioning into fully cash-free liquidity management. LÄS MER