| 000 -LEADER |
|---|
| fixed length control field |
02927nam a22001577a 4500 |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER |
|---|
| Classification number |
670 |
| 100 ## - MAIN ENTRY--PERSONAL NAME |
|---|
| Personal name |
Muneeb-Ur-Rehman |
| 245 ## - TITLE STATEMENT |
|---|
| Title |
Design and Optimization of a Savonius Hydrokinetic Turbine Using Upstream Bluff Bodies / |
| Statement of responsibility, etc. |
Muneeb-Ur-Rehman |
| 264 ## - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE |
|---|
| Place of production, publication, distribution, manufacture |
Islamabad : |
| Name of producer, publisher, distributor, manufacturer |
SMME- NUST; |
| Date of production, publication, distribution, manufacture, or copyright notice |
2023. |
| 300 ## - PHYSICAL DESCRIPTION |
|---|
| Extent |
106p. |
| Other physical details |
Soft Copy |
| Dimensions |
30cm |
| 520 ## - SUMMARY, ETC. |
|---|
| Summary, etc. |
Hydrokinetic turbines are emerging as a prominent solution for green and<br/>sustainable power generation. The Savonius hydrokinetic turbine, with its<br/>simple design, low-cost, ease of installation, low noise, and good start-up<br/>characteristics, is a promising technology for small-scale energy production.<br/>However, its performance suffers from certain limitations such as low<br/>efficiency and low starting torque. In this work, functionality of a<br/>conventional Savonius Hydrokinetic turbine (SHKT) was assessed using<br/>Computational Fluid Dynamics (CFD). The incorporation of streamlined bluff<br/>bodies upstream of the returning blade induced a flow diversion towards the<br/>advancing blade, consequently amplifying the power output. Cylinder,<br/>diamond, D-shaped (Half cylinder) and flat deflector plate were used as<br/>deflectors to analyse their impact on the turbine's performance. The results<br/>revealed that the diamond-shaped bluff body, in contrast to the conventional<br/>design, exhibited the maximum gain in turbine’s power coefficient (Cp) of up<br/>to 31% more at Rx= 0.75D and Ry=0.51D, at tip speed ratio (λ) equal to 1.2.<br/>The inclusion of cylinder-shaped and D-shaped bluff bodies yielded<br/>significant improvements in turbine’s operational performance at a consistent<br/>tip speed ratio (λ), with the former exhibiting a noteworthy increase of 11.83%<br/>and the latter demonstrating a substantial enhancement of 19.89% in turbine’s<br/>coefficient of power (Cp). At λ=1, the diamond-shaped bluff body achieved<br/>turbine’s peak power coefficient (Cp) of 0.298, signifying its optimal<br/>performance. Furthermore, through the inclusion of a 45o<br/>angled flat plate<br/>deflector positioned ahead of the driving blade and in combination with the<br/>diamond-shaped bluff body, the overall power coefficient (Cp) of the turbine<br/>experienced an additional enhancement of 29.58% at a tip speed ratio (λ)=1.2.<br/>Additionally, the diamond-shaped bluff body, in combination with a flat plate<br/>deflector, demonstrated maximum average power coefficient (Cp) of 0.491 at a<br/>tip speed ratio (λ)=0.8. This outcome demonstrates a notable improvement in<br/>the performance of the Savonius Hydrokinetic turbine when utilizing upstream<br/>bluff bodies and deflector plates. Thus, the use of these augmentation can<br/>significantly increase the efficiency of the Savonius Hydrokinetic turbine<br/>systems. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
MS Design and Manufacturing Engineering |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Supervisor : Dr. Zaib Ali |
| 856 ## - ELECTRONIC LOCATION AND ACCESS |
|---|
| Uniform Resource Identifier |
<a href="http://10.250.8.41:8080/xmlui/handle/123456789/38585">http://10.250.8.41:8080/xmlui/handle/123456789/38585</a> |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Source of classification or shelving scheme |
|
| Koha item type |
Thesis |
