Handbook of Induction Heating

Rudnev, Valery; Loveless, Don; Cook, Raymond L.; Black, Micah S.

doi:10.1201/9781420028904

Cited by 275 publications

(255 citation statements)

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H = \frac{N i}{\sqrt{4 R^{2} + L^{2}}}

Where H is magnetic field strength in A/m, N is number of turns, i is the current in amperes, R is the inner coil radius in meters, L is the coil length in meters. 39 A DOX-loaded nanocomposite 100 µL droplet was submerged in 1 mL 1X PBS within an Eppendorf tube. A control tube was maintained at RT, while the other was exposed to the AMF.…”

Section: Methodsmentioning

confidence: 99%

Injectable nanoengineered stimuli-responsive hydrogels for on-demand and localized therapeutic delivery

et al. 2017

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“Smart” hydrogels are an emerging class of biomaterials that respond to external stimuli and have been investigated for a range of biomedical applications, including therapeutic delivery and regenerative engineering. Stimuli-responsive nanogels constructed of thermoresponsive polymers such as poly(N-isopropylacrylamide-co-acrylamide) (poly(NIPAM-co-AM)) and magnetic nanoparticles (MNPs), have been developed as “smart carriers” for on-demand delivery of therapeutic biomolecules via magneto-thermal activation. However, due to their small size and systemic introduction, these poly(NIPAM-co-AM)/MNPs nanogels result in limited control over long-term, localized therapeutic delivery. Here, we developed an injectable nanoengineered hydrogel loaded with poly(NIPAM-co-AM)/MNPs for localized, on-demand delivery of therapeutics (doxorubicin (DOX)). We have engineered shear-thinning and self-recoverable hydrogels by modulating the crosslinking density of a gelatin methacrylate (GelMA) network. poly(NIPAM-co-AM)/MNP nanogels loaded with DOX were entrapped within a GelMA pre-polymer solution prior to crosslinking. The temperature and magnetic field dependent release of loaded DOX was observed from the nanoengineered hydrogels (GelMA/(poly(NIPAM-co-AM)/MNPs)). Finally, the in vitro efficacy of DOX released from injectable nanoengineered hydrogels was investigated using preosteoblast and osteosarcoma cells. Overall, these results demonstrated that the injectable nanoengineered hydrogels could be used for on-demand and localized therapeutic delivery for biomedical applications.

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“…2)" rend="display" xml:id="FD2">

H = \frac{N i}{\sqrt{4 R^{2} + L^{2}}}

Section: Methodsmentioning

confidence: 99%

Injectable nanoengineered stimuli-responsive hydrogels for on-demand and localized therapeutic delivery

et al. 2017

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“…As the hot metal ring is cooled, it contracts onto the shaft with the ambient temperature producing the mechanical stress which holds the two components together. Induction heater for shrink fit process generally falls into two categories [1]: the low frequency induction shrink fit process and the MF and RF heater [2]- [6]. The previous category is also called the core type induction shrink fit process while the latter category is called the core-less induction heating.…”

Section: Introductionmentioning

confidence: 99%

Numerical Electromagnetic Analysis for Metal Ring Induction Heater

Nagao

Sakamoto

2013

2013 8th EUROSIM Congress on Modelling and Simulation

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Numerical electromagnetic analyses for metal ring induction heater are conducted by FEM. The magnetic flux density along the iron core and the eddy current distribution as the heat source are investigated. It is found that the magnetic flux density along the iron core is not to uniform. The value has the maximum around the heating coils, and besides as the distance from the heating coils increases, the magnetic flux density value decreases to the lowest at the I-shape core where the metal ring to be heated is located. With the knowledge of the magnetic flux density along the core obtained, the eddy current densities within the metal rings are obtained by FEM and a theoretical approach. The theoretical results agree well with the FEM results. The values and the theoretical formula can become a necessary piece of information when developing the advanced control of the metal ring induction heater.Keywords-induction heating, electromagnetic analysis, FEM, magnetic flux density, eddy current density, shrink fit process, induction shrink fit process with core, induction shrink fit process without core

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“…Induction heating is the method of energy transfer from a primary coil (inductor) into a conducting body (usually metal) where induced currents (Foucault or eddy currents) are generated and electrical resistance leads to Joule heating within the metal components. [1,2] Induction coil (RF-coil) is the most important part of an induction heater (for any process), in which, a highfrequency driving alternating current (AC) is passed. The shape and geometry of a RF-coil depend on the size and shape of the object to be heated and required heating pattern.…”

Section: Introductionmentioning

confidence: 99%

3D Simulation of the Coil Geometry Effect on the Induction Heating Process in Czochralski Crystal Growth System

Heidari

Tavakoli

shokri

et al. 2020

Crystal Research and Technology

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Herein, influence of coil geometry in a Czochralski crystal growth system is studied using 3D finite element method. Three different geometries for the helical RF‐coil including solenoid, conical solenoid, and rectangular are considered and distribution of magnetic flux density (through the system), produced heat in the RF‐coil and the graphite crucible, as well as heat volume integral are calculated. The obtained numerical results show that every considered coil produces a special heating structure due to its shape with some advantages and disadvantages.

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Handbook of Induction Heating

Cited by 275 publications

References 0 publications

Injectable nanoengineered stimuli-responsive hydrogels for on-demand and localized therapeutic delivery

Injectable nanoengineered stimuli-responsive hydrogels for on-demand and localized therapeutic delivery

Numerical Electromagnetic Analysis for Metal Ring Induction Heater

3D Simulation of the Coil Geometry Effect on the Induction Heating Process in Czochralski Crystal Growth System

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