Modelling and Optimization of Low-temperature Waste Heat Thermoelectric Generator System

Rana, Sohel; Orr, Bradley; Iqbal, Arbab; Ding, Lai Chet; Akbarzadeh, Aliakbar; Date, Abhijit

doi:10.1016/j.egypro.2017.03.127

Cited by 27 publications

(11 citation statements)

References 9 publications

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“…Consider amount of power generation by TEG is negligible compared to total of heat transfer in hot or cold-water channel. By equating equation 3 and 4 ci ho co hi T T T T (5) On the other hand, from equation (1) and (4) ) )( ,…”

Section: Cold Water Channelmentioning

confidence: 99%

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Power generation from low grade waste heat using thermoelectric generator

et al. 2018

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Thermoelectric technology is thought to be a great solution in near future for producing electrical power and recovering low grade waste heat to cut the cost of power generation because of its consistency and eco-friendly affability. Though commercial accessibility of TEG is available currently but heat to electricity conversion efficiency is still low and cost of the module is reasonably high. It's essential to use the modules competently which is strongly depends on suitable heat exchanger design and selection of proper operating conditions. In this work, TEG module has been selected from the commercially available modules with efficiency of 1.91% for the targeted low-grade waste heat temperature of T h =90 o C and T c =15 o C which validated by experiment. Mathematical model has been proposed to simulate TEG based power generation system; the model can predict maximum net power, choose optimum operating conditions and dimensions of heat exchanger. Lab scale design with channel length 1 m, width 0.08 m and gap size 9 mm which is suitable for 50 TEG module (4 mm x 4 mm) have been simulated using proposed mathematical model. For above temperature range, predicted optimum net power was 76.45 W with optimum flow rate 0.94 L/s (56.4 L/min). This lab scale setup will be used for experimental validation of the proposed mathematical model. The obtained results from experiments and simulation are closely matched.

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Section: Cold Water Channelmentioning

confidence: 99%

“…Based on temperature, waste heat can be classified into low grade (below 230 o C), medium (between 230 o C to 630 o C) and high temperature (above 630 o C) and a typical example of waste heat and its work potential has shown in figure 1 [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Power generation from low grade waste heat using thermoelectric generator

et al. 2018

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“…CHEN, LG, etc. introduce the concept of energy taste into thermoelectric construction system, and compare the problems and operational methods in China's 300 MW plows [4]. Kang, Y., wait for the hot network side as a whole, calculate the heat load and circulating water parameters required for the entire heating period, and calculate the parameters required for the vehicle side of the heater on the steam side of the heater on the heat transfer unit according to the heat transfer theory and the actual power of the heating unit.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Low Pressure Steam Heating Technology of Thermoelectric Joint Production

Tang

2021

DGAEJ

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In order to reduce the loss of heat saving in the thermal engine, improve energy utilization efficiency. This paper uses EBSILON simulation software to establish models and perform changes to the working condition, and the comparison of design values on the thermal balance graph. The results show that this method is applicable to the calculation of the thermoelectric gauge. At different heat supply and exhaust flow and the ambient temperature, the heat transfer characteristics of the unit is constantly changed. When the ambient temperature is less than 15∘C, the combined circulation thermal consumption rate is negative and the ambient temperature is negative, and the ambient temperature is higher than 15∘C time is positively correlated. When the heating capacity is greater than 300 gj/h, the combined cycle efficiency of the unit at the same heating rate is higher than the 100% load rate. Conclusion: the EBSILON simulation software is reliable.

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“…Waste heat temperature, arrangement of TE modules, enhancing heat transfer co-efficient and parasitic loss plays an important role to maximize the net electric power [24].…”

Section: Introductionmentioning

confidence: 99%

Thermoelectric Generator Based on CuSO4 and Na2SiO3

Chira

Hegyi

Szilagyi

et al. 2020

The 14th International Conference on Interdisciplinarity in Engineering—INTER-Eng 2020

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Thermoelectric generators can operate at small temperature differences providing enough electricity for low-power electronics, sensors in distribution networks, and biomedical devices. The article presents the obtaining of a thermoelectric generator and its electrical characteristics using usual substances. Experimental research was carried out using a mixture consisting of several substances (copper sulfate, calcium hydroxide, silicon dioxide, and sodium silicate) in different proportions. The mixture was inserted between two plates, one graphite (hot plate) and the other aluminum (cold plate), thus obtaining a thermoelectric generator. Electrical voltage, output current, and electrical power were measured at different temperatures.

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Modelling and Optimization of Low-temperature Waste Heat Thermoelectric Generator System

Cited by 27 publications

References 9 publications

Power generation from low grade waste heat using thermoelectric generator

Power generation from low grade waste heat using thermoelectric generator

Optimization of Low Pressure Steam Heating Technology of Thermoelectric Joint Production

Thermoelectric Generator Based on CuSO4 and Na2SiO3

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