4 research outputs found
Offshore wind speed and wind power characteristics for ten locations in Aegean and Ionian Seas
This paper utilizes wind speed data measured at 3 and 10 m above water surface level using buoys at
10 stations in Ionian and Aegean Seas to understand the behaviour of wind and thereafter energy yield
at these stations using 5 MW rated power offshore wind turbine. With wind power densities of 971
and 693 W/m2 at 50 m above water surface level, Mykonos and Lesvos were found to be superb and
outstanding windy sites with wind class of 7 and 6, respectively. Other locations like Athos, Santorini
and Skyros with wind power density of more than 530 W/m2 and wind class of 5 were found to be the
excellent sites. Around 15–16% higher winds were observed at 10 m compared to that at 3 m. Lower
values of wind speed were found during summer months and higher during winter time in most of the
cases reported in the present work. Slightly decreasing (∼2% per year) linear trends were observed in
annual mean wind speed at Lesvos and Santorini. These trends need to be verified with more data from
buoys or from nearby onshore meteorological stations. At Athos and Mykonos, increasing linear trends
were estimated. At all the stations the chosen wind turbine could produce energy for more than 70% of
the time. The wind speed distribution was found to be well represented by Weibull parameters obtained
using Maximum likelihood method compared to WAsP and Method of Moments.http://www.ias.ac.in/jess/ai201
Wind power potential assessment for seven buoys data collection stations in Aegean Sea using Weibull distribution function
This paper utilizes three hourly measured values of wind speed and direction from
seven buoys data collection stations in Aegean Sea to study the wind speed and
power characteristics applying the Weibull shape and scale parameters.
Specifically, the site dependent, annual and monthly mean patterns of mean wind
speed, Weibull parameters, frequency distribution, most probable wind speed,
maximum energy carrying wind speed, wind power density and wind energy
density characteristics have been studied. The Weibull distribution was found to
represent the wind speed distribution with more than 90% accuracy in most of the
cases. Slightly decreasing trends were observed in annual mean wind speed values
at Lesvos and increasing at Mykonos. The mean values of wind speed, scale
parameter, most probable wind speed, maximum energy carrying wind speed, wind
power and wind energy density values showed higher values during winter time
and lower in summer time. Mykonos was found to be the best site from wind
power harnessing point of view. Moreover, the correlation between the percentages
of times the wind speed was above cut-in-speed and the measured mean wind
speed for the three selected sites and the correlation between the aforementioned
percentages and the scale parameter c were examined and were found linear.http://jrse.aip.org/ai201
Wind power potential assessment for seven buoys data collection stations in Aegean Sea using Weibull distribution function
This paper utilizes three hourly measured values of wind speed and direction from
seven buoys data collection stations in Aegean Sea to study the wind speed and
power characteristics applying the Weibull shape and scale parameters.
Specifically, the site dependent, annual and monthly mean patterns of mean wind
speed, Weibull parameters, frequency distribution, most probable wind speed,
maximum energy carrying wind speed, wind power density and wind energy
density characteristics have been studied. The Weibull distribution was found to
represent the wind speed distribution with more than 90% accuracy in most of the
cases. Slightly decreasing trends were observed in annual mean wind speed values
at Lesvos and increasing at Mykonos. The mean values of wind speed, scale
parameter, most probable wind speed, maximum energy carrying wind speed, wind
power and wind energy density values showed higher values during winter time
and lower in summer time. Mykonos was found to be the best site from wind
power harnessing point of view. Moreover, the correlation between the percentages
of times the wind speed was above cut-in-speed and the measured mean wind
speed for the three selected sites and the correlation between the aforementioned
percentages and the scale parameter c were examined and were found linear.http://jrse.aip.org/ai201
Offshore wind speed and wind power characteristics for ten locations in Aegean and Ionian Seas
This paper utilizes wind speed data measured at 3 and 10 m above water surface level using buoys at
10 stations in Ionian and Aegean Seas to understand the behaviour of wind and thereafter energy yield
at these stations using 5 MW rated power offshore wind turbine. With wind power densities of 971
and 693 W/m2 at 50 m above water surface level, Mykonos and Lesvos were found to be superb and
outstanding windy sites with wind class of 7 and 6, respectively. Other locations like Athos, Santorini
and Skyros with wind power density of more than 530 W/m2 and wind class of 5 were found to be the
excellent sites. Around 15–16% higher winds were observed at 10 m compared to that at 3 m. Lower
values of wind speed were found during summer months and higher during winter time in most of the
cases reported in the present work. Slightly decreasing (∼2% per year) linear trends were observed in
annual mean wind speed at Lesvos and Santorini. These trends need to be verified with more data from
buoys or from nearby onshore meteorological stations. At Athos and Mykonos, increasing linear trends
were estimated. At all the stations the chosen wind turbine could produce energy for more than 70% of
the time. The wind speed distribution was found to be well represented by Weibull parameters obtained
using Maximum likelihood method compared to WAsP and Method of Moments.http://www.ias.ac.in/jess/ai201