238 uppsatser · sida 5 av 16
… oljesmorda. Av de lite mer okända företagen presenteras Ossbergers Cross-flow turbin, som är fullt reglerbar till skillnad mot de ovan nämnda. Ett sista koncept är VLH-turbine, denna teknik som nyligen lanserats är ett resultat av ett forskningssamarbete där de tagit fram ett …
… process genom att minimera energiförluster och kostnader för material. En ångturbin i ett kraftvärmeverk producerar elektricitet genom att vattenånga strömmar igenom turbinen. Den överhettade vattenångan transporteras sedan från turbinen i en rörledning för att användas till …
… but also economical ones. This master thesis deals with faultdiagnosis in the turbine section of RM12, the engine used in Saab/BAe's Gripen. Three different faults which can occur in the turbine section was studied. These faults are: clogged fuel nozzle, hole in outlet guide …
… to the swing mass of the system, the frequencydependency of the load and the turbine governor. The model determines the systemfrequency, the period of regulation and the power exchange between the differentsubsystems in the Nordic synchronized system.In this model the system …
analys och åtgärdsförslag för storskaliga vattenkraftverk i Sverige
… till vattenkraftverk mellan 2004-01-01 ? 2005-06-30 på axel, lager och turbinsystem har gjorts. Larmkategorin som hade flest vaktutryckningar är oljenivåer. Den larmkategorin med flest larm valdes för vidare analys. För att få reda på olikheter i teknik som används och i …
… a small part of the liquid to evaporate. The generated steam is lead into a turbine where electricity is in a conventional manner. The purpose with this rapport was to do a basic study for the specific system at Arvika where it’s possible to see the potential production of …
… to drive a unit at the same efficiency point through a change of the turbine shaft speed and the rate of discharge is tested. Furthermore the theories behind model testing, determination of efficiency increase from model to prototype and efficiency measurements shall be …
en fallstudie
… consumption in the world. During the last few years many types of small wind turbines have appeared on the market. These small wind turbines are an alternative to the big wind turbines or power generators which demand huge sums of investment money.A new target group can now buy …
Skillnaden mellan skogs- och traditionella placeringar
During the last years commercial Wind Power Turbines (WPT) has become larger regardingto the generator sizes and hub heights. Available hub heights around 100 meters is nowcommon, which has led to profitability for WPT located in forests where there normally are tolow wind …
… plants. As things are at present, Fortum Distribution AB has a number of wind turbines and wind parks connected to the own grid. As the pressure on building and connecting additional wind power is increasing, so is also the interest of how the already existing wind power …
The project contains a force analysis of the vertical axis wind turbine Lucia's supporting arms and a measuring device to experimentally measure the forces is made. The forces between the supporting arms and the tower are calculated theoretically and then simulated by a …
… small power station on the river Nissan. Whether it is the chaplain or francis turbine vanes are actuated by hydraulic cylinders. Because of Gustavsberg hydropower is inconstant operation, this report is based on power calculations, which are read and computed according to the …
… of a hydroelectric power station that generates electricity with a reactions turbine, a Kaplan turbine. The existing keyway consists of one parallel key with the width 90 mm and height 45 mm. Due to a planned increase of the power of the generated power with 32 % a design study …
… of a hydroelectric power station that generates electricity with a reactions turbine, a Kaplan turbine. The existing keyway consists of one parallel key with the width 90 mm and height 45 mm. Due to a planned increase of the power of the generated power with 32 % a design study …
… uppstod för första gången vid Ringhals 1 den 3:e maj 2008 vilket ledde till turbinsnabbstopp. Inledningsvis fanns teorin att kokning utlöst larmet via flottörgivare, det har inte kunnat bekräftas om larmet utlöst på grund utav kokning eller vätska. Vid utredning hämtades …
