Fuxin Electronic Technology Co.

Qingyang, China

Fuxin Electronic Technology Co.

Qingyang, China
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Chen M.,University of Aalborg | Gao J.,South China University of Technology | Kang Z.,Fuxin Electronic Technology Co. | Zhang J.,Fuxin Electronic Technology Co. | And 2 more authors.
Conference Record - IAS Annual Meeting (IEEE Industry Applications Society) | Year: 2011

A thermoelectric generation system (TEGS) consists of not only thermoelectric modules (TEMs), but also the external load circuitry and the fluidic heat sources. In this paper, a system-level model is proposed in the SPICE-compatible environment to seamlessly integrate the complete fluid-thermal-electric-circuit multiphysics behaviors. Firstly, a quasi one-dimension numerical model for the thermal fluids and their non-uniform temperature distribution as the boundary condition for TEMs is implemented in SPICE using electrothermal analogy. Secondly, the electric field calculation of the previously proposed device-level SPICE model is upgraded to reflect the resistive behaviors of thermoelements, so that the electric connections among spatially distributed TEMs and the load circuitry can be freely combined in the simulation. Thirdly, a hierarchical and TEM-object oriented strategy is developed to make the system modeling and design scalable, flexible, and programmable. To validate the proposed system model, a TEGS including 8 TEMs is constructed. Through comparisons between simulation results and experimental data, it is clear that the cooptimization of the entire TEGS is enabled by the proposed model. © 2011 IEEE.


Chen M.,University of Aalborg | Gao J.,South China University of Technology | Gao J.,Hebei University of Science and Technology | Kang Z.,Fuxin Electronic Technology Co. | Zhang J.,Fuxin Electronic Technology Co.
Journal of Thermal Science and Engineering Applications | Year: 2012

A thermoelectric generation system (TEGS) used in the practical industry of waste heat recovery consists of the fluidic heat sources, the external load circuitry, and many thermoelectric modules (TEMs) connected as a battery bank. In this paper, a system-level model is proposed to seamlessly integrate the complete fluid-thermal-electric-circuit multiphysics behaviors in a single circuit simulator using electrothermal analogy. First, a quasi one-dimension numerical model for the thermal fluids and their nonuniform temperature distribution as the boundary condition for TEMs is implemented in simulation program with integrated circuit emphasis (SPICE)-compatible environment. Second, the electric field calculation of the device-level model is upgraded to reflect the resistive behaviors of thermoelements, so that the electric connections among spatially distributed TEMs and the load circuitry can be freely combined in the simulation. Third, a hierarchical and TEM-object oriented strategy are developed to make the system modeling as well as the design scalable, flexible, and programmable. To validate the proposed system model, a TEGS, including eight TEMs is constructed. Through comparisons between simulation results and experimental data, the proposed model shows sufficient accuracy so that a straightforward cooptimization of the entire TEGS of large scale can be carried out. © 2012 American Society of Mechanical Engineers.


Zhu J.,Fuxin Electronic Technology Co. | Gao J.,South China University of Technology | Gao J.,Hebei University of Science and Technology | Chen M.,University of Aalborg | And 4 more authors.
Journal of Electronic Materials | Year: 2011

A flat wall-like thermoelectric generation system is developed for applications in exhaust heat of kilns. The design of the whole experimental setup is presented. The essential performance of the thermoelectric generation system is tested, including open-circuit voltage, output power, and system conversion efficiency. The results illustrate that, when heat source insulation is not considered, the system conversion is efficient at hot-side temperatures between 120°C and 150°C. In addition, the nonuniformity of heat transfer is found to significantly affect the power-generating ability of the system. System-level simulation is carried out using a quasi-one-dimensional numerical model that enables direct comparison with experimental results. The results of both experiment and simulation will provide a foundation to improve and optimize complex thermoelectric generation systems. © 2011 TMS.


Chen M.,University of Aalborg | Gao J.,South China University of Technology | Gao J.,Hebei University of Science and Technology | Kang Z.,Fuxin Electronic Technology Co. | Zhang J.,Fuxin Electronic Technology Co.
Journal of Thermal Science and Engineering Applications | Year: 2016

The main objective of this study is to numerically analyze the uncertainty of the electrical interface resistance in thermoelectric modules (TEMs) and its contribution to the error of practical device and system simulation. To improve the simulation, the numerical implementation of the interface resistance in TEMs of any size, especially its temperature-dependent characteristics, is critical in the thermoelectric modeling. Using the electrothermal analogy and the PSpice simulator as the simulation baseline, the proposed nonlinear and statistical modeling of the interface resistance is examined and supported through extensive comparisons between experimental findings and numerical results. Considerable accuracy improvement is obtained for a single TEM and a system consisting of a number of interconnected TEMs. © 2016 by ASME.


Gao J.,South China University of Technology | Gao J.,Hebei University of Science and Technology | Sun K.,Tsinghua University | Ni L.,Nanjing University of Aeronautics and Astronautics | And 5 more authors.
Journal of Electronic Materials | Year: 2012

The electricity produced by a thermoelectric generator (TEG) must satisfy the requirements of specific loads given the signal level, stability, and power performance. In the design of such systems, one major challenge involves the interactions between the thermoelectric power source and the power stage and signal-conditioning circuits of the load, including DCDC conversion, the maximum power point tracking (MPPT) controller, and other power management controllers. In this paper, a survey of existing power electronics designs for TEG systems is presented first. Second, a flat, wall-like TEG system consisting of 32 modules is experimentally optimized, and the improved power parameters are tested. Power-conditioning circuitry based on an interleaved boost DCDC converter is then developed for the TEG system in terms of the tested power specification. The power electronics design features a combined control scheme with an MPPT and a constant output voltage as well as the low-voltage and high-current output characteristics of the TEG system. The experimental results of the TEG system with the power electronics stage and with purely resistive loads are compared. The comparisons verify the feasibility and effectiveness of the proposed design. Finally, the thermalelectric coupling effects caused by current-related heat source terms, such as the Peltier effect etc., are reported and discussed, and the potential influence on the power electronics design due to such coupling is analyzed. © 2011 TMS.

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