Integrated thermoelectric and organic Rankine cycles for micro-CHP systems

Qiu, K.; Hayden, A.C.S.

doi:10.1016/j.apenergy.2011.12.072

Cited by 72 publications

(21 citation statements)

References 8 publications

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“…In these studies integration between the different technologies is attempted and system performance is analysed. Such studies can be found is references [40][41][42][43].…”

Section: Micro-chp Modellingmentioning

confidence: 98%

Options for residential building services design using fuel cell based micro-CHP and the potential for heat integration

2015

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“…In these studies integration between the different technologies is attempted and system performance is analysed. Such studies can be found is references [40][41][42][43].…”

Section: Micro-chp Modellingmentioning

confidence: 98%

Options for residential building services design using fuel cell based micro-CHP and the potential for heat integration

2015

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“…One way to increase the efficiency of a TEG is to establish a large temperature gradient across the TEG [60]. Commercially available thermoelectric materials can be divided into (1) low-temperature materials, up to about 250°C (e.g., materials based on bismuth telluride), (2) intermediate medium temperature materials, up to about 600°C (e.g., materials based on lead telluride), and (3) high-temperature materials, up to about 1000°C (e.g., materials based on silicon germanium alloys) [62]. To increase efficiency, research is conducted on new materials, e.g., nanomaterials.…”

Section: Thermoelectric Generatormentioning

confidence: 99%

Technologies for utilization of industrial excess heat: Potentials for energy recovery and CO2 emission reduction

Viklund

Johansson

2014

Energy Conversion and Management

112

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Industrial excess heat is a large untapped resource, for which there is potential for external use, which would create benefits for industry and society. Use of excess heat can provide a way to reduce the use of primary energy and to contribute to global CO 2 mitigation. The aim of this paper is to present different measures for the recovery and utilization of industrial excess heat and to investigate how the development of the future energy market can affect which heat utilization measure would contribute the most to global CO 2 emissions mitigation. Excess heat recovery is put into a context by applying some of the excess heat recovery measures to the untapped excess heat potential in Gävleborg County in Sweden. Two different cases for excess heat recovery are studied: heat delivery to a district heating system and heat-driven electricity generation. To investigate the impact of excess heat recovery on global CO 2 emissions, six consistent future energy market scenarios were used. Approximately 0.8 TWh/year of industrial excess heat in Gävleborg County is not used today. The results show that with the proposed recovery measures approximately 91 GWh/year of district heating, or 25 GWh/year of electricity, could be supplied from this heat. Electricity generation would result in reduced global CO 2 emissions in all of the analyzed scenarios, while heat delivery to a DH system based on combined heat and power production from biomass would result in increased global CO 2 emissions when the CO 2 emission charge is low.

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“…Figure 1). The literature mentions several solid biomass-fuelled micro-CHP systems associated to various cogeneration devices: a Stirling hot air engine [1][2][3][4], an Organic Rankine Cycle (ORC) turbine [5] and a thermoelectric generator [6]. Although no study has dealt with the performances of a solid biomass-fuelled micro-CHP system with an Ericsson hot air engine yet, this cogeneration device is well adapted in such facilities [7].…”

Section: Introductionmentioning

confidence: 99%

“…To determine the working conditions and the performances of the solid biomass-fuelled micro-CHP systems and of their components, an energetic analysis is mostly applied [1,2,5,6]. Such studies may be completed with exergetic analyses, following the example presented by [14] with a natural gas micro-CHP system, in order to highlight the zones of exergy destruction and allow an improved optimization of the working conditions to enhance the performances.…”

Section: Introductionmentioning

confidence: 99%

Energetic and Exergetic Analysis of a Heat Exchanger Integrated in a Solid Biomass-Fuelled Micro-CHP System with an Ericsson Engine

Creyx

Delacourt

Morin

et al. 2016

Entropy

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Abstract:A specific heat exchanger has been developed to transfer heat from flue gas to the working fluid (hot air) of the Ericsson engine of a solid biomass-fuelled micro combined heat and power (CHP). In this paper, the theoretical and experimental energetic analyses of this heat exchanger are compared. The experimental performances are described considering energetic and exergetic parameters, in particular the effectiveness on both hot and cold sides. A new exergetic parameter called the exergetic effectiveness is introduced, which allows a comparison between the real and the ideal heat exchanger considering the Second Law of Thermodynamics. A global analysis of exergetic fluxes in the whole micro-CHP system is presented, showing the repartition of the exergy destruction among the components.

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Integrated thermoelectric and organic Rankine cycles for micro-CHP systems

Cited by 72 publications

References 8 publications

Options for residential building services design using fuel cell based micro-CHP and the potential for heat integration

Options for residential building services design using fuel cell based micro-CHP and the potential for heat integration

Technologies for utilization of industrial excess heat: Potentials for energy recovery and CO2 emission reduction

Energetic and Exergetic Analysis of a Heat Exchanger Integrated in a Solid Biomass-Fuelled Micro-CHP System with an Ericsson Engine

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