Essays about: "Rotational Energy"

Showing result 1 - 5 of 61 essays containing the words Rotational Energy.

1. 1. Unlocking the Potential of Battery Energy Storage Systems in the Nordic Frequency Regulation Markets : A techno-economic analysis to evaluate long-term profitability

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : Theodor Ingman; Henrik von Sivers; [2023]
   Keywords : ;

   Abstract : As the Swedish power system has increased its shares of production coming from intermittent renewables, the production coming from large rotational units as nuclear, and hydropower, has decreased. Thereby, the power system has become more sensitive to sudden changes between production and consumption of electricity, increasing the risk of disruptions in the electricity grid. READ MORE

3. 2. Efficiency of radial piston hydraulic motors

   University essay from Umeå universitet/Institutionen för fysik

   Author : Jennifer Eriksson; [2023]
   Keywords : Efficiency; Loss mechanics; MATLAB; Simulation model; Radial piston hydraulic motor;

   Abstract : In a world with high energy cost, the efficiency of motors becomes increasingly important. Thereby, the understanding of loss mechanics is of great significance and having accurate simulation models for the efficiency of motors is crucial. READ MORE

4. 3. Dynamics of a CRAFT : A simulation study on a Counter Rotating vertical Axis Floating Tilting wind turbine

   University essay from Uppsala universitet/Elektricitetslära

   Author : Benjamin Hedlund Peters; Linda Goude; [2023]
   Keywords : wind power; counter rotating; contra rotating; offshore wind; floating wind power; vertical axis wind turbine; VAWT; renewable energy;

   Abstract : In this thesis the Counter Rotating vertical Axis Floating Tilting wind turbine (CRAFT) has been explored by creating a simulation model in the program Simulink. The CRAFT prototype is a new type of wind turbine under development by World Wide Wind and Uppsala University with the aim to produce a large scale floating vertical axis wind turbine (VAWT) with two cone shaped counter rotating turbines. READ MORE

5. 4. Generating Perturbative Solutions for Slowly Rotating Perfect Fluids Using the Hartle Scheme

   University essay from Umeå universitet/Institutionen för fysik

   Author : Elin Johansson; [2023]
   Keywords : ;

   Abstract : In this thesis, we study slowly rotating relativistic stars by modeling them as perfect fluids. The Hartle formalism is used to perturb a spherically symmetric static solution into slow rotation and the corresponding field equations to second order are presented. READ MORE

6. 5. Dynamic Torque Control of Brushed DC Motors for Hardware-in-the-Loop Integration

   University essay from Lunds universitet/Institutionen för reglerteknik

   Author : Eric Schyllert; [2023]
   Keywords : Technology and Engineering;

   Abstract : The main goal with the thesis was to design, construct and evaluate a system able to drive and brake a mechanical axis to simulate loads and stored rotational energy - a hardware force simulator. The force simulator was then to be integrated in a existing hardware-in-the-loop testing rig to enhance the mechanical dynamics of door simulations. READ MORE