STUDY WIND PROFILE IN SURFACE LAYER BASED ON OBSERVATION DATA IN MALUKU

• Main Author: FIKRY NASHIRUDDIN - Nim: 12812016 , MUHAMMAD
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/29199
• Institution: Institut Teknologi Bandung

<p align="justify">In wind energy utilization, wind turbines are always located on the boundary layer, precisely on the surface layer, so the study of wind characteristics in this layer is important to do. However, the difficulty of getting wind speed data at the turbine's level leads to the estimated wind profile using the power law to get wind speed at turbine altitude is still frequent, whereas some previous studies have found poor results from this estimation method. In addition, the study of wind profiles in Indonesia is still rare because of the difficulty of obtaining wind speeds at an altitude of about 100 meters, so a study of wind profile needs to be done, including testing the appropriate estimation method. <br /> <br /> <br /> Observations of wind profiles at 10-200 meters height were conducted at Ohoidertutu, southeast Maluku on September 4-30th, 2016 using SODAR. This SODAR data is used as a reference to test the suitability of the wind profile estimation method with the power law using 3 different WSC calculation methods, then the results are compared with other estimation methods which are the estimation of wind profile under low-level jet. <br /> <br /> <br /> As the result, the SODAR wind profile produces a pattern that is more similar to a wind profile under a low-level jet than a wind profile with the power law. The average RMSE generated by the profile of power law reached 2.0, while the wind profile below the lowlevel jet reached 0.72. In addition, in the wind profile SODAR found diurnal variations due to atmospheric stability and the addition of wind speeds at a height of 40 m due to topographic forms at the observation site.<p align="justify">