Ravleen Kaur Manocha

Bio: Ravleen Kaur Manocha is an academic researcher from Army Institute of Technology, Pune. The author has contributed to research in topics: Tower & Turbine. The author has co-authored 4 publications.

Wind turbine blade fixing mechanism

Abstract: In this paper the blade fitting mechanism is developed. In this mechanism various types of blades can be fitted. The pitch angle of the blade can also be varied. Cylinders are welded to the hub. Another cylinder with small diameters is welded to a metallic square strip is welded to the blade with one square plate. This small cylinder is concentric to the cylinder which is welded to the hub. Blade can be fixed to the small cylinder using nut and bolt arrangement. The blade can be changed. The blade of desired shape can be fixed to the cylinder. The pitch angle of the blade can be changed by rotating the concentric cylinder. The holes are drilled along the length of both the cylinders. The holes are also drilled along the periphery of the cylinder. The pitch angle can be fixed by nut and bolts passing through the holes of the cylinders. The pitch angle for all three blades is kept constant. This mechanism can be placed in the laboratory test set up. Artificial wind can be created using blower fans. The impacts of blade shape and pitch angle on the output voltage flicker can be observed on digital storage oscilloscope.

Wind turbine model testing using blower fan sliding mechanism to create wind shear

Abstract: In this paper sliding mechanism is developed for testing the wind turbine model. The test set up is developed using steel frame. The frame may be made up of any other suitable metal like steel. It may be made of any suitable composite material. On the L section bars of the frame the slot are made for entire length. The blower fan can be slided on the bars and can be fitted at the desired position with nut and bolts. Similarly the wind turbine model also can be slided on the frame which is fixed on the other side of the test set up. This turbine model also can be fitted at the desired position with the help of nut and bolts. The speed of the fan also can be adjusted with help. By adjusting the wind speed vertical wind shear can be created. The magnitude of the vertical wind shear can also be varied by varying the position and speed of the blower fan. The corresponding flicker initiated in the wind turbine output voltage can be recorded with the help of the digital storage oscilloscope in the set up.

Adjustable concentric towers to vary tower shadow effect on flicker in wind turbine

Abstract: In this paper the facility to find the impact of tower shadow effect on voltage flicker initiated in the wind turbine output is developed. Concentric towers are developed using steel any suitable material pipe. The length of the pipe can be adjusted using sliding the pipe. Nut and bolts are used to fix the length of the pipe. There is a provision to fix the turbine on the tower. Tubular tower are formed using pipes. Pipes with different diameters are provided in the test set up. As length and height of the towers is varied the tower shadow effect is also varied. Artificial wind is created using blower fans. The impact of tower shadow effect on the voltage flicker output of the wind turbine is observed on digital storage oscilloscope. There is a provision to fix various types of generators on the towers. The experiment is conducted on the wind turbine scaled down models. The result can be scaled to the actual dimensions of the wind tower.

Laboratory test set up to study wind turbine tower models

Abstract: In this Paper various types of tower models are developed. This tower can be tested in the test set up for different wind conditions. Tubular tower, lattice tower, guyed wire tower are developed in the tests up. These towers can be tested for various wind conditions. Any other new designed tower also can be tested in the test set up. For any given wind conditions and surface roughness the performance of the tower can be observed. The flicker initiated in the wind turbine for various configurations of the tower can also be found. The lattice tower is made of steel bars. The tubular and guyed wire tower is made of steel cylinder. Any suitable material can also be used to build the tower. The towers are scaled down models. Tower models are tested in the laboratory. The results can be scaled up according the actual wind farm conditions and height of the tower. Suitable tower can be selected for particular area.