An ultra-high efficient micro combined heat and power cogeneration system based on gas combustion powered thermoelectric generator

Li, Guoneng; Zhang, Xinwei; Zheng, Youqu; Guo, Wenwen; Tang, Yuanjun; Ye, Chao

doi:10.1016/j.applthermaleng.2022.119941

Cited by 3 publications

(2 citation statements)

References 38 publications

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“…The significance of energy and environmental challenges has grown due to increased industrialization, advancements in knowledge, and rising energy use [23][24][25]. Natural gas usage has increased because of regulatory pressure, highlighting the necessity for extremely efficient energy technologies [26]. With the global energy landscape shifting towards renewable sources [27], it is imperative that waste heat from industrial operations be addressed [28].…”

Section: Introductionmentioning

confidence: 99%

Hybridization of heat recovery from exhaust gas of boilers using thermoelectric generators

Farhat,

Khaled,

Faraj

et al. 2024

J. Phys.: Conf. Ser.

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This study investigates the possibilities for energy recovery and environmental effect reduction of waste heat, a consequence of industrial activities. The main objective of the work is to integrate thermoelectric generators (TEGs) into industrial hybrid waste heat recovery system. The study consists of combining TEGs modules with a boiler waste heat recovery system with Rockwool insulation, taking into consideration variables like thermal resistance, power output, water temperature, and energy conversion efficiency. The results show that TEG placement has a major impact on system performance. One of the promising configuration is TEGs placed close to heat source, especially outside exhaust pipe outer walls, where electrical power up to 27 W can be generated and heat of 4215 W can be recovered from the exhaust gas.

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Section: Introductionmentioning

confidence: 99%

Hybridization of heat recovery from exhaust gas of boilers using thermoelectric generators

Farhat,

Khaled,

Faraj

et al. 2024

J. Phys.: Conf. Ser.

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“…MCHP can also be supplied with biogas, as reported in [54]. New constructions of highly efficient MCHP are constantly appearing in the literature, e.g., [55]. The flexibility of power generation under uncertain demand has recently been highlighted [56].…”

Section: Introductionmentioning

confidence: 99%

Methodology for Modernizing Local Gas-Fired District Heating Systems into a Central District Heating System Using Gas-Fired Cogeneration Engines—A Case Study

Czajor,

Amanowicz

2024

Sustainability

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Sustainability can be achieved by improving process efficiency, among other methods. In the case of heat supply systems for cities, one of the ways to increase the efficiency of fuel use, and thus reduce resource consumption and greenhouse gas emissions, is the generation of heat and electricity in one process—the use of cogeneration (CHP). The main goal of this paper is to deliver the methodology for a step-by-step modernization process for local gas-fired heating plants through the use of gas cogeneration engines in common central district heating systems. The presented methodology was applied on the basis of a real system located in north-western Poland (case study from Białogard). The profitability of cogeneration was simulated against the background of changing gas prices. The financial and environmental profit from modernization was calculated. The technical requirements that had to be met in order to adapt the existing heating system to cooperation with the new energy source were also presented. The importance of selecting the supply and return temperature of water in the heating system after modernization was emphasized. Based on investment experience, we show that installing a cogeneration engine improves a company’s financial result by 33% (calculated as the difference between the revenue from the sale of energy and the cost of gas only) and is less harmful to the environment, among other benefits, significantly reducing CO2 emissions by 78%.

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Overall numerical simulation of chemical-thermal-electric conversion for an all-in-one thermoelectric generator based on micro scale combustion

He,

You,

Kang

et al. 2024

Energy

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An ultra-high efficient micro combined heat and power cogeneration system based on gas combustion powered thermoelectric generator

Cited by 3 publications

References 38 publications

Hybridization of heat recovery from exhaust gas of boilers using thermoelectric generators

Hybridization of heat recovery from exhaust gas of boilers using thermoelectric generators

Methodology for Modernizing Local Gas-Fired District Heating Systems into a Central District Heating System Using Gas-Fired Cogeneration Engines—A Case Study

Overall numerical simulation of chemical-thermal-electric conversion for an all-in-one thermoelectric generator based on micro scale combustion

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