Cosmin DUMBRAVĂ


20-22 NECESITATEA EVALUĂRII POTENŢIALULUI ÎNCĂ DIN FAZA INCIPIENTĂ A DEMARĂRII UNEI INVESTIŢII ÎN DOMENIUL ENERGIEI EOLIENE

NECESSITY TO EVALUATE POTENTIAL SINCE
THE EARLY STAGES OF AN INVESTMENT IN WIND ENERGY
In starting an investment program in wind energy, the risk should not
be allowed under any circumstances. To avoid unnecessary costs or those with
low efficiency (given that a wind farm requires investment of at least several
tens of million euros), the wind potential of the site should be evaluated very
well.
Keywords: wind, wind speed, wind energy, variation graphs, wind potential
Cuvinte cheie: vânt, viteza vântului, energia vântului, grafice de
variaţie, potenţial eolian

22 NECESITATEA EVALUĂRII POTENŢIALULUI ÎNCĂ


23-55 MĂSURAREA CARACTERISTICILOR METEO PENTRU DETERMINAREA POTENŢIALULUI EOLIAN. MĂRIMI, INSTRUMENTE, MODALITĂŢI DE STOCARE A VALORILOR MĂSURĂTORILOR ŞI INCIDENTE CARE POT SĂ APARĂ LA ÎNREGISTRAREA ŞI TRANSMISIA DATELOR

WEATHER FEATURES MEASUREMENTS PERFORMED
TO EVALUATE THE WIND POTENTIAL.
VALUES, MEASUREMENT INSTRUMENTS, WAYS TO
STORING MEASUREMENT VALUES AND INCIDENTS
THAT MAY OCCUR IN DATA TRANSMISSIONS
To evaluate the wind potential for a location must be know the average
multiannual values of the weather features for her. These can be computed
based on measured values. The measurement can be performed using several
types of installations, which are initially set the time range for which the weather
feature values are averaged. In this process incidents can occur, which results
in wrong data.
The cause that generate lack of measurements data can be related to
the support pillars, installation and/or sensors and the calculation equipment,
storage and data transmission over the internet.
Cuvinte cheie: meteo caracteristici, senzori, transmisii de date, reţea
GSM, incidente în datele măsurătorilor şi audiovizualului, incidente
Keywords: weather features, sensors, data transmission, GSM
network, incidents in data measurements and broadcasting, incidents

23-55 MĂSURAREA CARACTERISTICILOR METEO PENTRU DETERMINAREA POTENŢIALULUI EOLIAN.


23-56 INFLUENŢE ASUPRA MIŞCĂRII MASELOR DE AER. CONSIDERAŢII FUNDAMENTATE PE VALORILE MĂSURĂTORILOR EXPERIMENTALE DE LA STÂLPI ANEMOMETRICI

INFLUENCES ON THE MOVEMENT OF AIR MASSES.
CONSIDERATIONS BASED ON THE EXPERIMENTAL
VALUES OBTAINED FROM ANEMOMETRIC PILLARS
In the initial management of an investment for the realization of a wind
generator farm, the most important activity is the evaluation of the target area.
The evaluation has to take in to account the existence of the electrical network
to acquire electricity, the access roads for installing and further supervising of
the equipment’s, the environmental impact etc. The most important factor in
making decision is the wind potential. It is determined from measurements
using special installation and depends entirely on relief and climate, actually by
the geographic area.
Cuvinte cheie: meteo caracteristici, potenţialul de vânt, viteza vântului,
de relief, clima, loc geografic
Keywords: weather features, wind potential, wind velocity, relief,
climate, geographical place

23-56 INFLUENŢE ASUPRA MIŞCĂRII MASELOR DE AER. CONSIDERAŢII FUNDAMENTATE PE VALORILE MĂSURĂTORILOR EXPERIMENTALE


21-60 DETERMINAREA VITEZEI VÂNTULUI PE BAZA VALORILOR MĂSURĂTORILOR EXPERIMENTALE OBŢINUTE DE LA STÂLPI ANEMOMETRICI

DETERMINATION OF WIND SPEED BASED ON
EXPERIMENTAL VALUES OBTAINED FROM
ANEMOMETERS POLES
Initial phase of an investment for a wind farm must contain the exact
wind potential in the target area. Where are used to determine weather features
anemometers poles, can accurately assess the wind potential on top of the pole
and above. Using the experimental values can determine wind speed at heights
above the pole, but it is possible to check the accuracy of function required of
wind velocity with height.
Cuvinte cheie: vânt, viteza vântului, energia şi puterea vântului, funcţia
de variaţie a vitezei vântului, strat limită
Keywords: wind, wind speed, wind energy and power, variation
function for wind speed, boundary layer

60 DETERMINAREA VITEZEI VÂNTULUI PE BAZA


22-15 PROBE INDEX EFECTUATE PE HIDROAGREGATUL NR. 1 DIN CHE DĂIEŞTI ÎNAINTE ŞI DUPĂ LUCRĂRILE DE REPARAŢIE CAPITALĂ

The index tests performed to double regulated turbines are used to
determine operating characteristics, to check on cam operation, to check power
guarantee, the efficiency etc.
Cuvinte cheie: probe index, hidroagregat, turbină cu dublu reglaj,
randamentul turbinei, cădere, debit, aparat director, rotor
Keywords: index tests, hydro unit, double regulated turbine, turbine
efficiency, head, discharge, wicket gates, runner

15 PROBE INDEX EFECTUATE PE HIDROAGREGATUL