2026-09-19T12:12:34Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/1283312025-04-09T15:29:53Zcom_1721.1_7582com_1721.1_7581col_1721.1_131023
Kamal Youcef-Toumi.
Zhang, Xiaotong(Mechanical engineer).
Massachusetts Institute of Technology. Department of Mechanical Engineering.
Massachusetts Institute of Technology. Department of Mechanical Engineering
2020-11-03T20:31:16Z
2020-11-03T20:31:16Z
2019
2019
https://hdl.handle.net/1721.1/128331
1201528825
Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, June, 2019
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 115-118).
In this thesis, an innovative Magnetohydrodynamic (MHD) energy harvester with the use of the magnetic concentrator is designed and optimized. A theoretical model relating the conductivity of water, magnetic flux density B, flow velocity u and the channel volume to the power output is first established. This leads to the decoupled analysis and simulations of magnetic field and flow field. The prototyped energy harvester without the concentrator achieves a power output of 442 nW, while the power output of the final design with the concentrator is expected to be 718.5 nW. The concept of another MHD energy harvester with a spiral flow diverter is also established with hollow space in the middle of the energy harvester for flow and robots to pass through. It is validated by CFD simulations that the flow velocity in the channel surrounding the hollow area is greatly amplified with the spiral flow diverter. The MHD energy harvester with the concentrators and spiral flow divereter is expected to produce power output of 238.3 nW.
by Xiaotong Zhang.
S.M.
S.M. Massachusetts Institute of Technology, Department of Mechanical Engineering
118 pages
eng
Massachusetts Institute of Technology
MIT theses may be protected by copyright. Please reuse MIT thesis content according to the MIT Libraries Permissions Policy, which is available through the URL provided.
http://dspace.mit.edu/handle/1721.1/7582
Mechanical Engineering.
Design and optimization of an MHD energy harvester for intelligent pipe systems
Design and optimization of an Magnetohydrodynamic energy harvester for intelligent pipe systems
Thesis
application/pdf
2020-11-03T20:31:15Z
Publication
Master
MechE
unknown
unknown
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<Abstract>In this thesis, an innovative Magnetohydrodynamic (MHD) energy harvester with the use of the magnetic concentrator is designed and optimized. A theoretical model relating the conductivity of water, magnetic flux density B, flow velocity u and the channel volume to the power output is first established. This leads to the decoupled analysis and simulations of magnetic field and flow field. The prototyped energy harvester without the concentrator achieves a power output of 442 nW, while the power output of the final design with the concentrator is expected to be 718.5 nW. The concept of another MHD energy harvester with a spiral flow diverter is also established with hollow space in the middle of the energy harvester for flow and robots to pass through. It is validated by CFD simulations that the flow velocity in the channel surrounding the hollow area is greatly amplified with the spiral flow diverter. The MHD energy harvester with the concentrators and spiral flow divereter is expected to produce power output of 238.3 nW.</Abstract>
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