Waste heat recovery using a thermoelectric power generation system in a biomass gasifier

Ma, Hwong‐Wen; Lin, Ching-Po; Wu, How-Ping; Peng, Cheng-Chien; Hsu, Chun-Chen

doi:10.1016/j.applthermaleng.2014.09.070

Cited by 41 publications

(22 citation statements)

References 23 publications

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“…TEGs have also found application in biomass gasifiers to further improve the recovery of heat [59].TE devices are either used for cooling purposes or for power generation from either low heat recovery applications or as stand-alone heat to electric energy conversion systems such as the battery charger powered by TEG modules [60]. However, methods of delivering maximum power to the battery for a range of temperature gradients across the thermoelectric module have to be used [61].…”

Section: Application Of Thermoelectric Devicesmentioning

confidence: 99%

A comprehensive review of thermoelectric technology: Materials, applications, modelling and performance improvement

Twaha

Zhu

Yan

et al. 2016

Renewable and Sustainable Energy Reviews

503

208

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Abstract:Thermoelectric (TE) technology is regarded as alternative and environmentally friendly technology for harvesting and recovering heat which is directly converted into electrical energy using thermoelectric generators (TEG). Conversely, Peltier coolers and heaters are utilized to convert electrical energy into heat energy for cooling and heating purposes The main challenge lying behind the TE technology is the low efficiency of these devices mainly due to low figure of merit (ZT) of the materials used in making them as well as improper setting of the TE systems. The objective of this work is to carry out a comprehensive review of TE technology encompassing the materials, applications, modelling techniques and performance improvement. The paper has covered a wide range of topics related to TE technology subject area including the output power conditioning techniques. The review reveals some important critical aspects regarding TE device application and performance improvement. It is observed that the intensified research into TE technology has led to an outstanding increase in ZT, rendering the use TE devices in diversified application a reality. Not only does the TE material research and TE device geometrical adjustment contributed to TE device performance improvement, but also the use of advanced TE mathematical models which have facilitated appropriate segmentation TE modules using different materials and design of integrated TE devices. TE devices are observed to have booming applications in cooling, heating, electric power generation as well as hybrid applications. With the generation of electric energy using TEG, not only does the waste heat provide heat source but also other energy sources like solar, geothermal, biomass, infra-red radiation have gained increased utilization in TE based systems.However, the main challenge remains in striking the balance between the conflicting parameters; ZT and power factor, when designing and optimizing advanced TE materials.Hence more research is necessary to overcome this and other challenge so that the performance TE device can be improved further.

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Section: Application Of Thermoelectric Devicesmentioning

confidence: 99%

A comprehensive review of thermoelectric technology: Materials, applications, modelling and performance improvement

Twaha

Zhu

Yan

et al. 2016

Renewable and Sustainable Energy Reviews

503

208

View full text Add to dashboard Cite

show abstract

“…Ma et al studied the application of TEGs to a biomass gasifier, providing the ability to generate 6 W of electrical power from an otherwise wasted source of thermal energy [15]. Xiong et al numerically modeled the performance of a two-stage TEG applied to the coolant water of blast furnace slag, yielding 440 W of power output for mild operating temperatures [16].…”

Section: Introductionmentioning

confidence: 99%

Geometric optimization of thermoelectric elements for maximum efficiency and power output

Barry

Agbim

Rao

et al. 2016

Energy

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“…The operating temperature of recuperator in the externally fired gas turbine system is up to 1100 °C [2], while in the micro-turbine cycle it is often higher than 600 °C [3]. The solar energy receiver usually works up to 900 °C [4], while the temperature of exhaust gases in the vehicle engine [5], biomass combustion systems [6] and matrixstabilized porous medium combustion [7] can reach 500 °C. The hot flue gases emitted from these high-temperature energy and power systems carry large amounts of waste heat.…”

Section: Introductionmentioning

confidence: 99%

A review on thermoelectric-hydraulic performance and heat transfer enhancement technologies of thermoelectric power generator system

et al. 2018

THERM SCI

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The thermoelectric material is considered to a good choice to recycle the waste heat in the power and energy systems because the thermoelectric material is a solid-state energy converter which can directly convert thermal energy into electrical energy, especially suitable for high temperature power and energy systems due to the large temperature difference. However, the figure of merit of thermoelectric material is very low, and the thermoelectric power of generator system is even lower. This work reviews the recent progress on the thermoelectric power generator system from the view of heat transfer, including the theoretical analysis and numerical simulation on thermoelectric-hydraulic performance, conventional heat transfer enhancement technologies, radial and flow-directional segmented enhancement technologies for the thermoelectric power generator system. Review ends with the discussion of the future research directions of numerical simulation methods and heat transfer enhancement technologies used for the thermoelectric power generator in high temperature power and energy systems.

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Waste heat recovery using a thermoelectric power generation system in a biomass gasifier

Cited by 41 publications

References 23 publications

A comprehensive review of thermoelectric technology: Materials, applications, modelling and performance improvement

A comprehensive review of thermoelectric technology: Materials, applications, modelling and performance improvement

Geometric optimization of thermoelectric elements for maximum efficiency and power output

A review on thermoelectric-hydraulic performance and heat transfer enhancement technologies of thermoelectric power generator system

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