Thermal analysis of a cooking pan with a power control induction system

Cabeza-Gil, Iulen; Calvo, Begoña; Grasa, J.; Franco, C.; Llorente, S.; Martı́nez, Miguel Ángel

doi:10.1016/j.applthermaleng.2020.115789

Cited by 16 publications

(15 citation statements)

References 20 publications

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“…The experimental heating tests consisted of heating a vessel to 200 • C for 1800 s on an induction cooktop prototype from BSH Home Appliances. The inductor used in the experiments generates a power distribution resembling a ring, which is assumed to be rotationally symmetric; see Figure 1 in Cabeza-Gil et al [10]. The applied power turns into heat in a steel microlayer of 100 µm, which is placed at the bottom of the vessel, by means of the dissipation of the eddy current density induced [11].…”

Section: Experimental Set-upmentioning

confidence: 99%

“…To address this need, we have developed high-fidelity simulations with the finite element method (FEM) and designed a full factorial analysis to study the effect of the main parameters of the vessel. The finite element (FE) model was based on a previous study [10], used to analyse the thermal distribution on the bottom of a pan depending on the meat size and position in the pan.…”

Section: Introductionmentioning

confidence: 99%

“…One of the main limitations of the FE model developed at [10] was the assumption of a constant thermal conductance between the cooking vessel and the glass. The microconcavity of the vessel and the thermal-deformation of the vessel during the heating makes very complex to model accurately this thermal contact conductance.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Combined Experimental-Numerical Investigation of the Thermal Efficiency of the Vessel in Domestic Induction Systems

et al. 2022

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New studies are emerging to reduce energy costs and become a more sustainable society. One of the processes where the greatest savings can be made is in cooking, due to its large-scale global use. In this vein, this study aims to analyse the influence of the vessel in the thermal efficiency at the cooking process. For that purpose, a numerical model of a cooking vessel was designed and validated with three different experimental heating tests. One of the key factors of the process is the contact between the vessel and the glass, therefore, two new approaches to model the thermal contact between the vessel and the cooktop were explored. Once the numerical models were calibrated, a full factorial analysis was performed to quantify the influence of the key parameters of the vessel in the heating process during cooking (thermal conductivity, specific heat, convection and radiation coefficients, and vessel concavity). Two of the most influential parameters in the heating process are the conductivity and the thermal contact between the vessel and the glass. Higher cooking efficiency can be achieved both with a low thermal conductivity vessel and with a high concavity, i.e., increasing the isolation between the vessel and the glass.

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Section: Experimental Set-upmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Combined Experimental-Numerical Investigation of the Thermal Efficiency of the Vessel in Domestic Induction Systems

et al. 2022

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“…The optimal control of the heat conduction processes is the in current interest scientific problem due to its relations with the global challenges of rational using the different kinds of power equipments by means the integrating control and design [1], by means introducing the new types of fuels like the biomass [1,2], as well as by means optimizing the thermal states during the industries processes [3] 26 I. Sh. Nevliudov, Yu.…”

Section: Introductionmentioning

confidence: 99%

“…V. Romashov and others ways. The current state of the optimal control of power equipments can be characterized as using the particular approaches for the particular tasks [1,2,3] and as having no the all-accepted engineering approaches like using the different kinds of governors for automation [4] for example. Considering these circumstances, the optimal control of heat conduction processes are having a lot attentions now [5,6,7,8,9,10].…”

Section: Introductionmentioning

confidence: 99%

One numerical approach to optimal control the linear heat conduction processes

2020

MAMM

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It is proposed the generalized mathematical formulation of the problem about the optimal control for the heat conduction processes representing by the partial differential equation. The proposed formulation not includes the necessary clarifications about the conditions which must be satisfied by the current and required temperature fields. But, during the generalized solving of the formulated problem, it is established that the current and required temperature fields must be agreed with the mathematical model of the heat conduction so that to have possibilities to provide uniquely these temperature fields by means the control vector. To solve the problem about the optimal control for the heat conduction processes it is developed the numerical approaches based on reducing to the especially built ordinary differential equations and minimization problem. This reducing is based on discretisation the heat conduction by using the grid method and on defining the unknown control vector as the numerical solution of the especially built Cauchy problem. To satisfy the all limitations it is proposed to build the permissible velocity of the unknown control vector considering with the requirements of necessary switching in some moments of the time. The particular example of using the proposed generalized approaches is considered to illustrate their application technique. It is shown that the proposed generalized mathematical formulation is fully corresponded with the considered particular example. In this considered particular example, the resolving Cauchy problem can be built and the switching time can be found in the depending on the grid node choosing. It is shown that the transient time can be decrease almost twice due to optimizing the control in the particular example at least. All these results will allow giving the clear representation of the proposed approaches and the technique of their using to solve the engineering problems about the optimal control of the heat conduction processes in different industrial systems.

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Portable Flexible Spherical Origami Joule‐Heaters with Aerogel

Chan,

Zhong,

et al. 2024

Adv Materials Inter

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Trending portable smart devices are providing great convenience to the daily life. Thermal conductivity is efficient for contact heat transfer. Unfortunately, existing rigid surfaces can hardly heat objects in arbitrary shapes. Herein, a flexible origami‐structure heater fabricated by scalable laser manufacturing with temperature feedback control is proposed. The thin film origami heater is designed as a pair of semispherical origami patterns, which can conform to the curved surface of food samples more effectively. Therefore, the heat conducting area is increased to generate a fast and even heating profile to the surface of the food samples. The outer aerogel provides high thermal insulation to prevent heat dissipation in the environment. As proof of concept, the heating device can cook quail eggs within 3 minutes at a constant temperature of 100 °C. The power consumption of this heater is as low as 18 W, which standard portable chargers can power. This work significantly promotes the usability of portable heaters for cooking spherical objects, providing more conveniences during outdoor hiking and even in outer space where water‐boiling is impossible without atmosphere and gravity.

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Thermal analysis of a cooking pan with a power control induction system

Cited by 16 publications

References 20 publications

A Combined Experimental-Numerical Investigation of the Thermal Efficiency of the Vessel in Domestic Induction Systems

A Combined Experimental-Numerical Investigation of the Thermal Efficiency of the Vessel in Domestic Induction Systems

One numerical approach to optimal control the linear heat conduction processes

Portable Flexible Spherical Origami Joule‐Heaters with Aerogel

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