CONCERNING THE CONVERSION EFFICIENCY INCREASE OF THE AVAILABLE WIND POTENTIAL
Journal Title: ANALELE UNIVERSITATII DIN CRAIOVA - Seria Inginerie electrica - Year 2011, Vol 35, Issue 35
Abstract
There are some arguments in favor of the small systems for wind energy conversion directly in thermal energy by using the eddy current heater: the existing structure of power and thermal energy consumption is in favor of the last, reliability and low cost of the eddy current heater, optimal operation at different wind speeds, higher capacity factor of wind turbine, heat accumulation and its use during periods, when the wind doesn’t blow, can be solved simply and cheaply. Based on non-dimensional characteristic efficiency factor - tip speed ratio and size of the turbine rotor was calculated power curve, which shows a real possibility to increase the production of thermal energy at wind speeds higher than rated wind speed. The calculation algorithm is presented. In one and the same wind conditions the wind turbine will produce more thermal energy than power. Based on measured wind data for one year and wind turbine power curve, the power and thermal energy production were calculated. In the analyzed example (turbine rated power is 9,8 kW) the amount of thermal energy will be higher by about 6 % for 12 months and in the cold season, when wind speed is higher - with 12 to 18 %.
Authors and Affiliations
Ion SOBOR, Andrei CHICIUC, Rodion CIUPERCA, Vasile RACHIER
Keywords
Related Articles
- EP ID EP92333
- DOI -
- Views 242
- Downloads 0
REMOTE MONITORING SYSTEM OF THE TEMPERATURE OF DETACHABLE CONTACTS FROM ELECTRIC CELLS
This paper refers to a remote monitoring system of electric contacts with intense currents for eliminating the malfunctions due to imperfect contact and for increasing the security in electrical supply. Most electrical...
Embedded System for Controlling the Temperature Inside of an Electric Furnace
We have been listening for a long time to the wide functionality that industrial automation technologies can offer for improving the processes and adding security to the plants and the parts of them. However the price...
CPT application in Active Power Filtering
The current decomposition, based on the Conservative Power Theory (CPT), includes, beside the active, reactive and void components, an unbalanced component too. This way it is possible for the active filter to compensate...
Implementation and Adjustment of CPML for CE-FDTD Algorithm
A complex-envelope finite difference time domain (CE-FDTD) algorithm has been proposed in the literature as one of FDTD formulations that is very general. However, this method, didn’t receive a lot of scientific...
Dynamic State of Low Power Asynchronous Motors in Direct-on-Line Starting
The research opportunity is explained by the results obtained in modelling and simulation of asynchronous motors, in the purpose of increasing their technical and economic performances when they operate in dynamic states...