Energy Harvesting by Bio Inspired Fins Using Rectangular Cylinders of Different Aspect Ratio / (Record no. 608860)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02762nam a22001577a 4500 |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 621 |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Haris, Muhammad |
| 245 ## - TITLE STATEMENT | |
| Title | Energy Harvesting by Bio Inspired Fins Using Rectangular Cylinders of Different Aspect Ratio / |
| Statement of responsibility, etc. | Muhammad Haris |
| 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 | 2022. |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 64p. |
| Other physical details | Soft Copy |
| Dimensions | 30cm |
| 500 ## - GENERAL NOTE | |
| General note | In order to operate a micro electromechanical device, we need a small amount of<br/>energy. In this research, we suggested an energy harvesting system based on wake flow for<br/>these types of devices. Energy harvesting using piezoelectric flag is a renewable energy<br/>source which attain a lot of interest in the research field. The flag oscillates when the fluid<br/>force at certain velocity strikes the bluff body. It is positioned at the wake of the cylinder, and<br/>it functions as cantilever beam. When the water strikes the bluff body vortices is generated<br/>which tend to oscillate the flag and energy is transferred. The kinetic energy of the fluid is<br/>converted into electric energy using the piezoelectric flag and supplied directly to the small<br/>sensors when needed. Cross section area of the cylinders and different parameters strongly<br/>influenced on the power output. To investigate the impact of parameter on the energy<br/>harvesting, a flexible flag is used.<br/>Detail experimentation was performed to investigate the influence of parameter with<br/>change in aspect ratio of cylinder on the power output. In this study, rectangular cylinder of<br/>different aspect ratio (1, 1.2 and 1.4) with bio inspired fins (Dorsal, Pectoral and Pelvic) were<br/>used. Apart from bluff body, other parameter like streamwise gap (Gx), stiffness of the flag<br/>and velocity plays an Important role in the energy harvesting. Total 63 cases were performed<br/>in our study and in each case 1 – 1.5min video was recorded to investigate the flapping of the<br/>eel. Total nine different type of cylinders was used in our study on which experimentation<br/>was done at different streamwise gaps. Streamwise gap (Gx) varies from 1 - 4. By varying the<br/>Gx we have found out that at some position the coupling of the wake with the piezoelectric<br/>flag is good enough and produce maximum strain.<br/>The results concluded that by using Dorsal fins having 1.2 A.R rectangular cylinder<br/>gives maximum power. Maximum power was achieved at Gx = 3.5 which is 82.74µW.<br/>Minimum power was shown in 1 A.R rectangular cylinder in Dorsal fin at Gx = 1 which is<br/>7.63µW. We had compared the hollow circular cylinder with our study, 5-10% more power<br/>was harvested. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | MS Mechanical Engineering |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Supervisor : Dr. Emad Uddin |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="http://10.250.8.41:8080/xmlui/handle/123456789/31077">http://10.250.8.41:8080/xmlui/handle/123456789/31077</a> |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | |
| Koha item type | Thesis |
| Withdrawn status | Permanent Location | Current Location | Shelving location | Date acquired | Full call number | Barcode | Koha item type |
|---|---|---|---|---|---|---|---|
| School of Mechanical & Manufacturing Engineering (SMME) | School of Mechanical & Manufacturing Engineering (SMME) | E-Books | 04/17/2024 | 621 | SMME-TH-787 | Thesis |