DESIGN AND ANALYSIS OF AXIAL FLOW PROPELLER FREE VORTEX WATER TURBINE AT LOW HEAD
Indonesia as a tropical country with abundant natural resources has the potential for electrical energy sourced from renewable energy with a total geothermal potential of more than 400 Gigawatts, solar plants have an additional 11 Megawatts, wind and water energy potentials reach 150 Gigawatts. O...
Saved in:
| Main Author: | |
|---|---|
| Format: | Theses |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/62776 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Indonesia as a tropical country with abundant natural resources has the potential
for electrical energy sourced from renewable energy with a total geothermal
potential of more than 400 Gigawatts, solar plants have an additional 11
Megawatts, wind and water energy potentials reach 150 Gigawatts. One of the
abundant renewable energy potentials is the potential for low head water.
Turbine technology that utilizes water flow at low water fall height can be an
alternative for providing electrical energy. In this study, the design process was
carried out to obtain the design of the guide blades and moving blades, at the best
performance of the water turbine with free vortex criteria for further analysis
between numerical results or errors using CASCADE with numerical simulations
using the Ansys program.
The design methodology is based on the design method in the Performance
Turbomachinery book by R.I Lewis, then the design uses the CASCADE, Re.Des,
and the STACK applications so that the coordinates of the turbine blades are
obtained. Followed by a three-dimensional design drawing using the Autodesk
Inventor and Ansys applications to get results in the form of velocity field and rotor
performance as a results for evaluating the performance of a water turbine with
free vortex criteria.
In this study, information was produced regarding the free vortex propeller type
axial flow water turbine using a design with 13 blades and 5 blades. The hub
diameter is 0.2 m and the tip blade diameter is 0.4 m. The analysis of the blades is
divided into 11 segments with each segment having a thickness of 18.18 mm. The
characteristics of the torque and power generated on the free vortex propeller type
axial flow water turbine at low head using CASCADE, Re.Des, and Ansys
numerical simulations. The power generated is 13,677.38 watts in the numerical
simulation of Ansys, 747.98 watts lower than the results of the analysis using
CASCADE of 14,425.36 watts. The errors between the two methods (CASCADE
analysis, Re.Des and numerical simulation), the inflow has an average error value
of 3.22% and the outflow 2.81%. |
|---|