The experimental design of solar heating thermoelectric generator with wind cooling chimney

Özdemir, Ali Ekber; Köysal, Yavuz; Özbaş, Engin; Atalay, Tahsin

doi:10.1016/j.enconman.2015.03.108

Cited by 62 publications

(20 citation statements)

References 19 publications

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“…Liu et al [2] designed and fabricated a completed thermoelectric generator (TEG) system to recover waste heat from automotive exhaust. Özdemir et al [3] designed a new solar based TEG to convert solar heat energy into electric energy. Sion et al [4] presented an infrared sensor by adopting a planar TE device.…”

Section: Introductionmentioning

confidence: 99%

A real-sized three-dimensional numerical model of thermoelectric generators at a given thermal input and matched load resistance

Shi

Zhu

Deng

et al. 2015

Energy Conversion and Management

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Section: Introductionmentioning

confidence: 99%

A real-sized three-dimensional numerical model of thermoelectric generators at a given thermal input and matched load resistance

Shi

Zhu

Deng

et al. 2015

Energy Conversion and Management

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“…Passive cooling involves dissipating heat from the cold side to air through natural convection. In the study by Özdemir [59] on STEGs, the efficiency is comparatively low when cooled by an isolated wind chimney. For a temperature variation of 10 • C inside the chimney, the cold side temperature increases from 30 • C to 77 • C. The study was extended to compare the efficiency when the cold side temperature is fixed at 30 • C. Though a peak efficiency of 6% was achieved, the average efficiency hovers around 3%.…”

Section: Passive Air Coolingmentioning

confidence: 99%

Section: Passive Air Coolingmentioning

confidence: 99%

The Design of a Thermoelectric Generator and Its Medical Applications

Kumar

Babu

Subramanian

et al. 2019

Designs

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Growing energy demands are driving people to generate power in every possible way. New energy sources are needed to plug the energy gap. There is a growing interest in distributed energy generation due to its remarkable advantages such as flexibility, reliability, adaptability and minimal transmission losses. Thermoelectric generators (TEGs) are one such distributed power source that relies on thermal energy for electricity generation. The current review focusses on the design and optimization of TEGs to maximize the power output from the available thermal sources. The basic principle of thermoelectricity generation and suitable architecture for specific applications are explained with an overview of materials and manufacturing processes. Various cooling techniques to dissipate heat from the cold side and their influence on overall efficiency are reviewed in this work. Applications of TEGs for powering biomedical sensors have been discussed in detail. Recent advancements in TEGs for various implantable devices and their power requirements are evaluated. The exploitation of TEGs to generate power for wearable sensors has been presented, along with published experimental data. It is envisioned that this study will provide profound knowledge on TEG design for specific applications, which will be helpful for future endeavours.

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“…8‐11 Thermoelectric generator placed in evacuated space under high solar energy concentrated achieves high relative conversion efficiency and provides new opportunities for cost—more effective conversion processes . Özdemir et al experimentally studied solar‐based TEGs enhanced by chimney to cool the back surface of TEGs and enhanced by heat pipes to maintain a high heat flux on the TEGs' upper surface. Date et al investigated solar concentrated based thermal‐electrical generator used to heat water for domestic applications and to generate electricity.…”

Section: Introductionmentioning

confidence: 99%

A hybrid TEG/wind system using concentrated solar energy and chimney effect

2018

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This paper investigates a novel hybrid system combining thermal electrical generators (TEGs) and a wind turbine. The mathematical model of the system is derived and solved to investigate the performance of the proposed system. In the proposed system, solar energy is converted to heat by an absorber plate. Some portion of this heat is converted to electricity using TEG, while another portion of the heat is used to heat up air flowing in an inclined duct placed underneath the absorber plate. Heating the air inside the system enhances the current speed because of the effect of buoyancy. A wind turbine is placed inside the duct parallel to air flow before it exits to the atmosphere. The wind current is accelerated before passing through the turbine by using venture effect. The TEGs are exposed to the concentrated solar radiation. This can be obtained using a compound parabolic concentrator. The proposed configuration has multiadvantages: (1) the wind is used to drive a wind turbine; (2) air cools the rear surfaces of TEGs to increase the temperature difference between the opposite surfaces, thus generates more electrical power; and (3) it uses buoyancy effect to increase the wind stream speed, thus enhancing the power generated from turbine. It is found that the solar concentration ratio is the most important factor contributing to enhancing the TEG efficiency. The buoyancy effect leads to turbine power boost at high wind speeds more than at low wind speeds.

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The experimental design of solar heating thermoelectric generator with wind cooling chimney

Cited by 62 publications

References 19 publications

A real-sized three-dimensional numerical model of thermoelectric generators at a given thermal input and matched load resistance

A real-sized three-dimensional numerical model of thermoelectric generators at a given thermal input and matched load resistance

The Design of a Thermoelectric Generator and Its Medical Applications

A hybrid TEG/wind system using concentrated solar energy and chimney effect

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