Energy, exergy and environmental analysis of a hybrid combined cooling heating and power system utilizing biomass and solar energy

Wang, Jiangjiang; Yang, Ying

doi:10.1016/j.enconman.2016.07.059

Cited by 190 publications

(34 citation statements)

References 26 publications

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“…Since then the commercialisation of thermally activated cooling units accelerated and with it the development of CCHP systems. A commonly used parameter to describe the efficiency of refrigeration units is the coefficient of performance (COP), which is the cooling capacity of the unit divided by its heat or electricity consumption [74].…”

Section: Thermally Activated Cooling Technologiesmentioning

confidence: 99%

Biomass-fired combined cooling, heating and power for small scale applications – A review

Wegener

Malmquist

Isalgué³

et al. 2018

Renewable and Sustainable Energy Reviews

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The growing demand for energy and the accelerating threats from climate change call for innovative and sustainable solutions to decrease dependency on fossil fuels. Biomass-based, small-scale Combined Cooling, Heating and Power (CCHP) systems are one of these solutions, because they can satisfy the energy demands of the consumer with enhanced flexibility, lower losses, less costs and less environmental pollution as compared to centralized facilities. Due to recent advances in several scientific subfields with relevance to small-scale CCHP, a rapidly increasing amount of literature is now available. Therefore, a structural overview is essential for engineers and researchers. This paper presents a review of the current investigations in small-scale CCHP systems covering biomass-fired concepts and solar extensions. To this end, critical system components are described and analysed according to their specific advantages and drawbacks. Recent case studies have been collected and key findings are highlighted according to each type of prime mover. The results indicate a scientific bias towards the economic viability of such systems and the need for real-life and experiment system data. However, the potential of biomass-fired CCHP systems and of such systems with solar extensions has clearly been recognised. Based on the results, future policy implementations should focus on fostering such systems in areas with high energy costs and to increase energy resilience in developed regions. Additionally research and industry applying novel prime mover technologies should be financially supported.

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Section: Thermally Activated Cooling Technologiesmentioning

confidence: 99%

Biomass-fired combined cooling, heating and power for small scale applications – A review

Wegener

Malmquist

Isalgué³

et al. 2018

Renewable and Sustainable Energy Reviews

View full text Add to dashboard Cite

show abstract

“…In fact, the system allowed an energy saving of about 57%, a reduction of the carbon emission ratio of about 95%, and providing about 200 kW of cooling power. In addition, the COP of the system is high (1.1) [21].…”

mentioning

confidence: 98%

“…The results obtained showed that the solar system with a thermal COP equal to 0.73 can satisfy the required conditioned air of a house having a surface of 120 m 2 [20]. The study [21] proposed a very efficient hybrid combined cooling, heating, and power system driven by solar energy and biomass applied to a building with a 100-kW electricity load. It consists of a biomass gasification subsystem, solar evacuated collector (having an area of 96 m 2 for an 800 W/m 2 solar irradiance), internal combustion engine, and dual-source powered mixed-effect absorption water chiller.…”

mentioning

confidence: 99%

Solar Air-Conditioning Systems

Aridhi¹,

H'mida²,

Mami³

2018

Sustainable Air Conditioning Systems

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The chapter presents the recent studies focusing on optimizing the efficiency of air-conditioning (AC) systems using solar energy. For this purpose, several advanced AC plants (absorption, adsorption, and desiccant) are designed. Their technology and components are described in this chapter. It also discusses the energy intake of the solar energy use in airconditioning, especially in rural regions where the electricity shortage is frequent, as well as the reduction of the energy costs and the pollution rate. A comparison between solar AC systems and traditional AC systems at the level of the designs, costs, and effectiveness is made at the end of the chapter.

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“…Steinfeld and Fletcher have made an earlier research in this field, respectively [1,2]. The solar reactor is the most part of the solar thermochemical process, now, the pivotal issue on improving the properties of the solar reactor has been obtained great attention, thus, a lot of research on the solar reactor has been implemented [3][4][5][6][7][8][9]. For instance, a scalable and simple solar reactor, which uses porous ceria as catalyst was proposed by Chueh et al The porous ceria was directly exposed to the high-temperature concentrated solar energy, which improves the heat transfer performance of catalyst.…”

Section: Introductionmentioning

confidence: 99%

“…However, these solar thermochemical processes can be achieved at very high temperatures of above 800 K, using concentrated solar radiation, thus imposing technological difficulties of coupling solar energy as the driving energy for the chemical reactions. Now, Jin and his group developed a new approach for hydrogen production by using middle and low temperature concentrated solar energy [6][7][8]. A first MLTSRR prototype has been manufactured by Jin et al [9], furthermore, the basic principle of the MLTSRR is identified.…”

Section: Introductionmentioning

confidence: 99%

A Two-Dimensional Multiphysics Coupling Model of a Middle and Low Temperature Solar Receiver/Reactor for Methanol Decomposition

et al. 2017

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Abstract:In this paper, the endothermic methanol decomposition reaction is used to obtain syngas by transforming middle and low temperature solar energy into chemical energy. A two-dimensional multiphysics coupling model of a middle and low temperature of 150~300 • C solar receiver/reactor was developed, which couples momentum equation in porous catalyst bed, the governing mass conservation with chemical reaction, and energy conservation incorporating conduction/convection/radiation heat transfer. The complex thermochemical conversion process of the middle and low temperature solar receiver/reactor (MLTSRR) system was analyzed. The numerical finite element method (FEM) model was validated by comparing it with the experimental data and a good agreement was obtained, revealing that the numerical FEM model is reliable. The characteristics of chemical reaction, coupled heat transfer, the components of reaction products, and the temperature fields in the receiver/reactor were also revealed and discussed. The effects of the annulus vacuum space and the glass tube on the performance of the solar receiver/reactor were further studied. It was revealed that when the direct normal irradiation increases from 200 W/m 2 to 800 W/m 2 , the theoretical efficiency of solar energy transformed into chemical energy can reach 0.14-0.75. When the methanol feeding rate is 13 kg/h, the solar flux increases from 500 W/m 2 to 1000 W/m 2 , methanol conversion can fall by 6.8-8.9% with air in the annulus, and methanol conversion can decrease by 21.8-28.9% when the glass is removed from the receiver/reactor.

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Energy, exergy and environmental analysis of a hybrid combined cooling heating and power system utilizing biomass and solar energy

Cited by 190 publications

References 26 publications

Biomass-fired combined cooling, heating and power for small scale applications – A review

Biomass-fired combined cooling, heating and power for small scale applications – A review

Solar Air-Conditioning Systems

A Two-Dimensional Multiphysics Coupling Model of a Middle and Low Temperature Solar Receiver/Reactor for Methanol Decomposition

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