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المؤلفHassan, H.
المؤلفWahid, A.N.
المؤلفMuthalif, A.G.A.
تاريخ الإتاحة2024-05-14T03:51:41Z
تاريخ النشر2022
اسم المنشورIET Conference Proceedings
المصدرScopus
المعرّفhttp://dx.doi.org/10.1049/icp.2022.2272
الرقم المعياري الدولي للكتاب27324494
معرّف المصادر الموحدhttp://hdl.handle.net/10576/54930
الملخصWith the ever-growing energy demand and environmental concerns, research on alternative energy is vital for sustainability. Thermal energy harvesting using shape memory alloy (SMA) heat engine is one of the possible methods for power generation from low to high-grade thermal energy but suffers from low performance; one of the reasons is due to the varying angular velocity input. In this research, a tunable generator coupled with a pulley-type SMA heat engine is designed to produce output voltage at different resonances, matching with the varying frequency input from the heat engine. The generator consists of piezoelectric cantilever beams arranged around a pulley with moving supporting clamps to manipulate their natural frequencies. The generators are mechanically excited by repulsive forces of magnets attached at both rotating SMA heat engine and generator pulleys. Results show that the peak output voltage produced by the tuned piezoelectric generator is higher as compared to untuned where the percentage of improvement is 230.62%, 44.75%, 11.59%, 76% and 96.83%, at 40mm, 45mm, 50mm, 55mm and 60mm effective length, respectively. Results from this study can help to design an SMA heat engine coupled with piezoelectric generators where maximum voltage can be generated consistently for a more efficient thermal energy harvesting.
اللغةen
الناشرInstitution of Engineering and Technology
الموضوعElectric generators
Energy harvesting
Engines
Piezoelectric devices
Piezoelectricity
Pulleys
Sustainable development
Alternative energy
Energy demands
Energy Harvester
Environmental concerns
Low-to-high
Output voltages
Piezoelectric generators
Power- generations
Thermal energy harvesting
Tunables
Thermal energy
العنوانTunable Piezoelectric Generator Coupled with Shape Memory Alloy (SMA) Heat Engine as Thermal Energy Harvester
النوعConference Paper
الصفحات95-100
رقم العدد10
رقم المجلد2022
dc.accessType Abstract Only


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